CA1247940A - Pneumatic spreader - Google Patents
Pneumatic spreaderInfo
- Publication number
- CA1247940A CA1247940A CA000476544A CA476544A CA1247940A CA 1247940 A CA1247940 A CA 1247940A CA 000476544 A CA000476544 A CA 000476544A CA 476544 A CA476544 A CA 476544A CA 1247940 A CA1247940 A CA 1247940A
- Authority
- CA
- Canada
- Prior art keywords
- conduits
- plate
- materials
- deflector
- conduit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C15/00—Fertiliser distributors
- A01C15/04—Fertiliser distributors using blowers
Abstract
"PNEUMATIC SPREADER"
Gerald L. Widmer and Larry J. Gray ABSTRACT OF THE DISCLOSURE
A pneumatic spreader for the distribution of materials and a flow distributor for same are disclosed. The spreader includes a distribution chamber having multiple compartments with a gas inlet and material outlet defining a venturi in each of the compartments. The materials are discharged from the distribution chamber and its compartments through first conduits coupled to the respective material outlets and a plurality of second conduits communicating with each of the first conduits for receiving the materials and discharging them to the ground. A flow distributor adjacent the juncture of the first and second conduits equally divides the materials in the first conduit between the second conduits. The flow distributor includes a substantially circular plate having a plurality of openings which communicate to the second conduits and a substantially conical deflector which is adjustable both linearly and is eccentrically rotatable for adjusting the flow between the plate openings. In a second embodiment of flow distributor, a second plate is provided between the deflector and the circular plate and this plate also is movable linearly and is eccentrically rotatable relative to the openings to further adjust the flow through the openings.
Gerald L. Widmer and Larry J. Gray ABSTRACT OF THE DISCLOSURE
A pneumatic spreader for the distribution of materials and a flow distributor for same are disclosed. The spreader includes a distribution chamber having multiple compartments with a gas inlet and material outlet defining a venturi in each of the compartments. The materials are discharged from the distribution chamber and its compartments through first conduits coupled to the respective material outlets and a plurality of second conduits communicating with each of the first conduits for receiving the materials and discharging them to the ground. A flow distributor adjacent the juncture of the first and second conduits equally divides the materials in the first conduit between the second conduits. The flow distributor includes a substantially circular plate having a plurality of openings which communicate to the second conduits and a substantially conical deflector which is adjustable both linearly and is eccentrically rotatable for adjusting the flow between the plate openings. In a second embodiment of flow distributor, a second plate is provided between the deflector and the circular plate and this plate also is movable linearly and is eccentrically rotatable relative to the openings to further adjust the flow through the openings.
Description
PNEllMATIC ~PR~ADER
Ger~ld L. ~id~aer $nd L~rry Jl, Gr~y ~ y~ :
The pre~ent ~ tion rel~te~ ~o ~
pneuE~ic ~preader and, ~ore particularly, to a pneumat~ ~pre~der ~n~ flow di~tributor for a~nifor~ly 13istr~utlR~g ~nd ~pply~ng ~ater~al6 1~ ~uch a~
lo ~ertiliæer~8 se~d ~nd t~e l~ke.
Yar~ou~ klnd~ of ~teri~ ppli~ators, ~uch afi for fertlli~er~ ~ee~ erbic~de6, insec~ iâe5 ~nd the lilce~ have been e~ployed in the p~;t. In~luded ~DIsny thel;e prior ~olid~ ~pplic~torE
r t~e~e pur~o~e~ ~re tho~e ~hi~b ~nclu~ ~ool b~r al6~;e~ 1e6 h~ng one or aore hoppers which ~o~t~n8 for ~%~ple~ seed ~nd/or ertiLli2cers ~n~ the~e ~aater~ re ~31ged ~nd di~pen~ed ~rom the ~dopper$
throu~h ~ guite co~ple~ ~rr~n~ement of ~etering 20 mechani~ms and conduits. The material~ are propelled by air ~hrough the conduit~ to injection ~ites adjacent a plurality of chisel blades on the tool bar ~embly, ~here tlhe laaterial~ ~re di~ch~rged dire~tly into an opening ~in the ~o~l ~hich h~s been cut by the 25 chisel bla~e~ One such ~pplicator of thi~ Icind i8 6h~wn by ~y o~ ex~mple in ~n~ted $t~tes I,etteræ
Patent Q~BECR ~4 ,296 ~69~ .
One of the di~ad~ant~ge~ of ~uch pr$or ~pplicator~ ~8 the aliffieulty ln ~aint~inin~ the 30 uniformity of di~tribut~on at each of the injector site~, Thi~ problem i6 comp~unded in the ~urrent day J~ 6~
to~l bar aE~plic~tor~ by ~rtue o the ~E~ct ith~ they e uæu~lly o~ ~ub~tan1~ th~ sometila~e~ on the order of 54 ~eet sr aore ~ idth9 al1~ ~1BO due to the lncrea~ed nu~ber of ~n~ect~orl $ite~ on ~uch tool 5 Ib~r ~emblie~ . In tool Ib~r ~pplicRl:or~ J a~ ~ell o~cher lo~ deli~ery applicator~, eaeh of lthe ~n~ct~sa ~ite~ 1~ fr~quently ~loser to~e'cher ~n~ therefore~
the nu~ber of ~n~lection site~ fsr ~ en ~ th appl~cator i~ gre~ter th~n irl higher deli~rery lû 115y~;t~ 118~ fc>r ~s~mple in typi~l bro~cast ~pplic~tor~. ~ccordingly, ~ere the nu~ber of ln jectors i~ increa~ed ~n the ~pplic~tor, the nuDIber of con~eyi~q eondults and ~eterlng ~ppar~tu~ i6 81BO
lncrea~ed ~nd the difficulty of obtaining a unlform dis~ribut~on between t}liS lncreased number of condui'c~ ~nd injectors i6 co~pounded. ~oreoYer, ~ec~use of the ~ub~t~nlti~l ~idth o~ ~any ¢urrent day applicator~, un~for~ ty o~ di~trlbutlon between t~e ~n~ect:or8 ne~r the source of ~upply of ~e a~a~t~rial6
Ger~ld L. ~id~aer $nd L~rry Jl, Gr~y ~ y~ :
The pre~ent ~ tion rel~te~ ~o ~
pneuE~ic ~preader and, ~ore particularly, to a pneumat~ ~pre~der ~n~ flow di~tributor for a~nifor~ly 13istr~utlR~g ~nd ~pply~ng ~ater~al6 1~ ~uch a~
lo ~ertiliæer~8 se~d ~nd t~e l~ke.
Yar~ou~ klnd~ of ~teri~ ppli~ators, ~uch afi for fertlli~er~ ~ee~ erbic~de6, insec~ iâe5 ~nd the lilce~ have been e~ployed in the p~;t. In~luded ~DIsny thel;e prior ~olid~ ~pplic~torE
r t~e~e pur~o~e~ ~re tho~e ~hi~b ~nclu~ ~ool b~r al6~;e~ 1e6 h~ng one or aore hoppers which ~o~t~n8 for ~%~ple~ seed ~nd/or ertiLli2cers ~n~ the~e ~aater~ re ~31ged ~nd di~pen~ed ~rom the ~dopper$
throu~h ~ guite co~ple~ ~rr~n~ement of ~etering 20 mechani~ms and conduits. The material~ are propelled by air ~hrough the conduit~ to injection ~ites adjacent a plurality of chisel blades on the tool bar ~embly, ~here tlhe laaterial~ ~re di~ch~rged dire~tly into an opening ~in the ~o~l ~hich h~s been cut by the 25 chisel bla~e~ One such ~pplicator of thi~ Icind i8 6h~wn by ~y o~ ex~mple in ~n~ted $t~tes I,etteræ
Patent Q~BECR ~4 ,296 ~69~ .
One of the di~ad~ant~ge~ of ~uch pr$or ~pplicator~ ~8 the aliffieulty ln ~aint~inin~ the 30 uniformity of di~tribut~on at each of the injector site~, Thi~ problem i6 comp~unded in the ~urrent day J~ 6~
to~l bar aE~plic~tor~ by ~rtue o the ~E~ct ith~ they e uæu~lly o~ ~ub~tan1~ th~ sometila~e~ on the order of 54 ~eet sr aore ~ idth9 al1~ ~1BO due to the lncrea~ed nu~ber of ~n~ect~orl $ite~ on ~uch tool 5 Ib~r ~emblie~ . In tool Ib~r ~pplicRl:or~ J a~ ~ell o~cher lo~ deli~ery applicator~, eaeh of lthe ~n~ct~sa ~ite~ 1~ fr~quently ~loser to~e'cher ~n~ therefore~
the nu~ber of ~n~lection site~ fsr ~ en ~ th appl~cator i~ gre~ter th~n irl higher deli~rery lû 115y~;t~ 118~ fc>r ~s~mple in typi~l bro~cast ~pplic~tor~. ~ccordingly, ~ere the nu~ber of ln jectors i~ increa~ed ~n the ~pplic~tor, the nuDIber of con~eyi~q eondults and ~eterlng ~ppar~tu~ i6 81BO
lncrea~ed ~nd the difficulty of obtaining a unlform dis~ribut~on between t}liS lncreased number of condui'c~ ~nd injectors i6 co~pounded. ~oreoYer, ~ec~use of the ~ub~t~nlti~l ~idth o~ ~any ¢urrent day applicator~, un~for~ ty o~ di~trlbutlon between t~e ~n~ect:or8 ne~r the source of ~upply of ~e a~a~t~rial6
2 0 to be ~ppl ied and tho~e ~d j~cellt the end~ of t~e applicator bo~m 1~ aore d~ffilcult tv control ~nd thi~
problem of uniformity i~ ~ven further compounded ~hen the applicator i~ ope~ated on auneyen terrainf ~uch a~
on ~ hill~de.
Another disadv~nt~ge ~n ~uch prior ~pplicatoY~ i~ the eomple3~ity of the ~etering ~pp~ratu~ ich 1~ nece~ary to 2!ltta~n unifor~
di~tribution bet~een the ~everal inje~tors. ~uch ~aetering ~ppar~tus gener~lly cor~pri~e~ nu~nerou~
redundan~ e~erlng ~aec~l~nis~s including ~ech~n~cally driYen ~eterlng roll~ and lndi~ridual ~etering cup~
for each of the material~ condu~t6 and lnjector6.
Thi~ repetiti~n o~ ~etering ~pparatus, thereby, nece~6it~te~ elabor~te mecharlic~l drives for the ~etering rolls ~nd their attendent maiLnten~nce e~cpense~ and increa~ed component~ ~nd their ~dded Yeight and expen~e.
a!~ pneumatic ~preader ~nd flo~d dlstr~butor inc:orporating the principles of the pre~ent in~entis~n is capable o~E ~ighly uniform d~tribution of the ~na~erial~ to be applied over ~ wide width appllca'cor and/or one hzlving a l~r~e nur~ber of ~p~ced lnject~on 8ite8. In a pneumatic spreader and flo~ distributor incorporating the principle~ of the pre~ent invention, the ~aterial flow ~ all of the sonduits ay be accur~tely ~dju~ted to esaualize the ~Elo~
through all of the conduit~ of the ag~embly ~nd, once adjuated may be ~et in that adju~tment. In ~
pneumatic spreader a~nd flow distrlbutor incorpor~'cing the principle~ of the preserllt inv~ntion, the cc~mple~city elnd redund~ncy of ~etering c~anponent~ are ~in~izQd along ~ith their added ~eight ~lld cost and l~echanic~l drives for t}le ~netering ~pparatuz ~re ~ubstantially reduced and aimplified eli~ina'ci-ag the complexity and maintenance reguirement~ of the prior appl icator~ .
In one principal aspect of the preEent invention, a pneumatic ~preader for the di~tribution of ~aateri~l~ t~ the ground co~pri~e~ ~ di~tribu~ion ch~mber" m~terial inlet me~ns for ~ntrodu~ing the Dlaterial~ to be spread into the di~tribution ch~mber, alnd ~ 9~ lnlet ~oean~ for introducing ga~ into the dis~cribution chamb*r. The di6tribution eha30ber 11160 inelude~ outlet ~ne~n6 or di~ch~rging the ~ateri~l~
and the gas f ro~ the chamber, the 9~ lnlet ~ean8 ~nd outlet me~ns defining a ventllri which draw6 the ~terisl~ ~rom the di6trilbution chamber and propels ~he ~ater~al6 t~rough t~e outlet ~e~n6. ~ t ~ondu~t is coupled ~ith the outlet ~ean~ ~or receiving the ~ater~al~ and ga~ di~ch~rged rom the outlet ~nd ~ plurality of ~econd con~uit~ arQ joined to and ~ommun~c~te 7~ith the f~r~t conduît or receiv~ng the ~ater~ ana 9~ therefrom~ e~ch o~ .
the 3second conduit~ ~wluding di scharge ~ean~ ~or di~charging the ~aater~ therefrom t~ the ground, A
10 ~low di~tributor adj~cent tlle ~uncture oiE the fir~t ~nd ~econd c~ndui . ~ ~ubs~nt~ally equally di~ide~ the ~aterial~ in the fir~t condult between the second conduit~, ~hereby usliform amount~ of the ~aater~
~re di6charged to the ground f ro~n the di~charge 15 !nean~.
In ~nother princip~l a~pect of t~e pre~ent inventiorl3 the ~forementioned 10w di6tributor include~ ~ ~ub~tantially plan~r pl~te having a plur~ y of openislg therethrough, ~c~ h~ch communicate~ ~ith the ~econd collduit~. ~ach o the opening~ i~ pn~itioned in ~paced rel~tion~hip to the center of the plate and a three dimensional ~olid ~haped deflector adjacent the center of the plate deflect~ the material~ passing through the fir~t 25 conduit to the ~econd conduit~.
In ~'cill ~nother principal a~pect of the pre~ent ~nventiosl, the ~fore~entioned d~flector 1~
mounted to ~aove relative to tbe opening~ ~o ~dju~t the amount~ of lthe ~ateri~16 deflected to re~pective
problem of uniformity i~ ~ven further compounded ~hen the applicator i~ ope~ated on auneyen terrainf ~uch a~
on ~ hill~de.
Another disadv~nt~ge ~n ~uch prior ~pplicatoY~ i~ the eomple3~ity of the ~etering ~pp~ratu~ ich 1~ nece~ary to 2!ltta~n unifor~
di~tribution bet~een the ~everal inje~tors. ~uch ~aetering ~ppar~tus gener~lly cor~pri~e~ nu~nerou~
redundan~ e~erlng ~aec~l~nis~s including ~ech~n~cally driYen ~eterlng roll~ and lndi~ridual ~etering cup~
for each of the material~ condu~t6 and lnjector6.
Thi~ repetiti~n o~ ~etering ~pparatus, thereby, nece~6it~te~ elabor~te mecharlic~l drives for the ~etering rolls ~nd their attendent maiLnten~nce e~cpense~ and increa~ed component~ ~nd their ~dded Yeight and expen~e.
a!~ pneumatic ~preader ~nd flo~d dlstr~butor inc:orporating the principles of the pre~ent in~entis~n is capable o~E ~ighly uniform d~tribution of the ~na~erial~ to be applied over ~ wide width appllca'cor and/or one hzlving a l~r~e nur~ber of ~p~ced lnject~on 8ite8. In a pneumatic spreader and flo~ distributor incorporating the principle~ of the pre~ent invention, the ~aterial flow ~ all of the sonduits ay be accur~tely ~dju~ted to esaualize the ~Elo~
through all of the conduit~ of the ag~embly ~nd, once adjuated may be ~et in that adju~tment. In ~
pneumatic spreader a~nd flow distrlbutor incorpor~'cing the principle~ of the preserllt inv~ntion, the cc~mple~city elnd redund~ncy of ~etering c~anponent~ are ~in~izQd along ~ith their added ~eight ~lld cost and l~echanic~l drives for t}le ~netering ~pparatuz ~re ~ubstantially reduced and aimplified eli~ina'ci-ag the complexity and maintenance reguirement~ of the prior appl icator~ .
In one principal aspect of the preEent invention, a pneumatic ~preader for the di~tribution of ~aateri~l~ t~ the ground co~pri~e~ ~ di~tribu~ion ch~mber" m~terial inlet me~ns for ~ntrodu~ing the Dlaterial~ to be spread into the di~tribution ch~mber, alnd ~ 9~ lnlet ~oean~ for introducing ga~ into the dis~cribution chamb*r. The di6tribution eha30ber 11160 inelude~ outlet ~ne~n6 or di~ch~rging the ~ateri~l~
and the gas f ro~ the chamber, the 9~ lnlet ~ean8 ~nd outlet me~ns defining a ventllri which draw6 the ~terisl~ ~rom the di6trilbution chamber and propels ~he ~ater~al6 t~rough t~e outlet ~e~n6. ~ t ~ondu~t is coupled ~ith the outlet ~ean~ ~or receiving the ~ater~al~ and ga~ di~ch~rged rom the outlet ~nd ~ plurality of ~econd con~uit~ arQ joined to and ~ommun~c~te 7~ith the f~r~t conduît or receiv~ng the ~ater~ ana 9~ therefrom~ e~ch o~ .
the 3second conduit~ ~wluding di scharge ~ean~ ~or di~charging the ~aater~ therefrom t~ the ground, A
10 ~low di~tributor adj~cent tlle ~uncture oiE the fir~t ~nd ~econd c~ndui . ~ ~ubs~nt~ally equally di~ide~ the ~aterial~ in the fir~t condult between the second conduit~, ~hereby usliform amount~ of the ~aater~
~re di6charged to the ground f ro~n the di~charge 15 !nean~.
In ~nother princip~l a~pect of t~e pre~ent inventiorl3 the ~forementioned 10w di6tributor include~ ~ ~ub~tantially plan~r pl~te having a plur~ y of openislg therethrough, ~c~ h~ch communicate~ ~ith the ~econd collduit~. ~ach o the opening~ i~ pn~itioned in ~paced rel~tion~hip to the center of the plate and a three dimensional ~olid ~haped deflector adjacent the center of the plate deflect~ the material~ passing through the fir~t 25 conduit to the ~econd conduit~.
In ~'cill ~nother principal a~pect of the pre~ent ~nventiosl, the ~fore~entioned d~flector 1~
mounted to ~aove relative to tbe opening~ ~o ~dju~t the amount~ of lthe ~ateri~16 deflected to re~pective
3~ one~ of the opening~.
Xn ~till anotl~er princip~l a~pect of the pre~ent invention, the last ~entioned ~Gveme~t of the deflect~r ~ay be either eccenltric ~nd,~or linear relatiYe 'co the center of the pla~e.
.3~
In ht~ nother princip~ ;pect o~ the pregen~ lnvention, ~n the ~iEore~entloned 10~
defl~tor~ J ~ec~nd plat~ ~ay Ibe p~s~g~oned bet~een t~e plate ~nd the second plate i~ al~o s~lovable ~o ~over ~t le~t a por~on of ~o~e of the ope~a~ ng~., In $till a3l0ther prin~ip~l ~spe~t of the present inYention~ tbæ pl~n~r pl~te 1~ ~ub6t~ntially ~ircular ~nd e~h of the opening~ i8 po~it~or~ed radi~lly about t~e ~enter of the plate, ~nd the three dimen3ion~1 solid shaped deflector i~ ~ubst~nti~lly coni~al in ~hape, In stlll another principal a$pe~t of the ~refient lnventlon, ~ 10w distrlbuto~ ~or uni~or~ly di~tributing ~ ~low of ~aterial~ between a plur~lity of condui~c~ include~ a plate h~ving ~ plur~lity of open~ngs througll the plate ~ ~ f i P~t condui~ fo~
~03nmun~c~tiLng a flow of ~ater~al~ wlth one 6~Lde o the pl~te ~s~d the openlrl~$, anâ ~ plur~l~ty of ~e~olld conduit~ commuQl~t~ng ~ith the other side o t~e plate, e~ch o~ the ~e~osid ~onduit~ coDnun~l:stin~ e~ith one of the opening~ to receiYe the ~a'ceri~ls w~ich flow through the openings, A deflector is po~itioned adjacent the one ~ide of the plate for deflecting the flowing material~ toward the openiny~, the deflector e~tendlng toward the fir~t conduit ~Ind into the ~Elow~ng ~naterl~l~9 ~nd the deflector i~ aounted to ~nove relatiYe 'co the open~ng~ to adju~t the amount~
of the ~&~er~ deflected by the deflector to re~pective one~ of the open~ng~.
In ~till ~nother principal afipect of the pre~ent ~nYention, the la~t ~entioned plate ~
~ub~tantially pl~nar anà the deflector i~ a three dimen~i~nal ~hapeO
--S--'7~
In ~till ~nother pr~nc~pal ~pecoc of t~e pxe~ent ~nYention, t~e laBt ~entioned ~efle~gor ~s ~ourlted to ~ve eccentrically ~nd/or line~rly relatlqe to ~he center of the pl~te,.
S ~n ~ill another pr~ncip~l ~gpe~t of t~e pre~ent in~ention~ the flow t~i~tributor lnclude$ ~
second plste between the pl~te ~nd the de~lector ~nd the second pl~te i~ ~vable 'co co~@r ~t lea~t a portion o ~ome of ~he opening~ in t~e pla~e~
In ~till anot!hex lpr~rlcip~ pect of the pre~ent in~ention; the deflector include~ dic~a vi~ble from the other ~i~3e o~ the plate ~hich indicate~ the po~ition to ~hich the deflector h~
been ~oYed~
In ~till another principal ~pect of the present invention, the planar pla~e of the flow de~lector ~ ~ub&tanti~lly circul~r and ~wh of the openlngs ~ p~itioned radially ~b~ut the center of the plate, ~nd the t~ree di~en~ional ol~d ~haped deflec or i~ $1lbE;t~ lly con~c~l ~n ~) ape.
These and other ob3e~t~, feature~ ~nd ~dvantages OI 'che pre~ent invention will be more clearly under~tood through a con6ideration of the following detailed description.
BRI~ DESC:RIPl'ION OF T~E DRMINGS
In the course ~f thi6 de~cription, reference will fre~uently be ~ade to the ~ttached . dra~ing~ in ~hi~h:
~ ;o ~ a rear per6pectiYe Yiew of a ~ateri~ pplicator of the type haYing a tosl bar ~embly ~nd in which the pneumatic ~pre~der ~nd flow di~triblltor of the pre~ent inveritiorl may be $ncorporated5 i'$~
FIGD 2 ~s ~n enlarged, re~rO broken, perspect~ve ~ew o the pneu~D~tic ~preade ~ho~n in ~IG. 1~
FIG. 3 is o broken~ pl~n ~iew of the 5 di~tribu~ion ~h~mber of eche ~preader ~ ewedl ~ubstan~lly ~long llne 3-3 o~ FIG.. 2 p but ~th the air bloe"er ~e~bly" c~alaber top~all and se~eral of the condults removed5 I?IGo 4 ill3 a cross-s@ct~oned 8~d~ ation 10 vîe~ of the pneumatic ~preader di~tribution cha~ber ~nd air conduit6, ~ ~ iewed ~ubst~nti2l11y along line ~-~ o~ ~IG~ ~S
~ IG. 5 1~ end elev~t~on view of the pnellmatic spre~er di~t~ibutiorl cha~ber ~nd ~r 15 di~tribu~ion sy~tela,, a~ ~iewed ~ubæt~nt~lly ~lor3g l~ne 5-5 of FIG., 4S
~ IG. C 1~ ~ brok~n ~ide ~lev~tlorl ~ie~ of one of tlie ~teri~ lo~ condui~s of ~he preferred ~odi~ent of pneumatic ~preader o~ the pr~s~nt 20 lnvention ~nd 1 8 ~low dl~tributor~
~ I~. 7 is an exploded per~pec~ive vle~ of the f low di6tr ibutor sho~n i an ~IG . 6;
FIG. 8 i~ ~ rear eleYation ~riew of the as~embled flow distributor shown in ~IG. 7 and 25 viewe~ ~rom th~ left in ~IGo 6~
FIG. 9 i~ ~n e~p~ oded p~r~pecti~re ~ie~ o a ~eco~ad e~bodi~aent of flo~ di~ributor incorporatillg th~ princaple~ of the pre~ent ln~entioll~
~ IG., 10 ~8 ~ r~r ~levati~on ~e~ o the 30 ~6~e~ d ~ecosld embodi~ent o~ ~low d~tributo~ ~ho~n in ~I~. gy but ~8 ~ wed ~o~ tl~ Et ln FI~;~ 6~ ~nd ~ IG~ a broken~ end el~Yation view of preferred er~bodimen~ of Jdjust~sent g~uye for either o the aors~menti~ned flo~ d~trlbutor embodiDIent~,.
T~ C~e~
In l?IGo 1 ~!1 Yeh~lLcle 10 ihaV~ 9 ~I pr~ferred embodi~ent of pneuaatic ~p~e~der 12 ~nca3rpor~ting tbe principle~ of the pre~ent lnvent~on 1~ own. ~he 5 ~ehicle 10 includes ~ hopper 1~ ~or cont~ini~g ~nd transp~rt~ng the ~ater~al~ ~hi~h ~re to be ~pread by tbe spreader of the pre6ent inv~nt~on. I~ ghe pre~ent drawings, the hop~r 1~1 ~hich i~ shown 1~ one ~Ihich contain~ ~olid particul~te ~terial~ 6uch ~
10 for ea~ample, fertilizer ~hich ~g to be ~pplied to ~e ~oil by the pneu~D~tic ~pre~der 12.
The ~olid particulate~ in the ~pper 1~ ~re dischxlrged from the rear o~ t~e h~pper by a con~eyor belt 16 ~ a~ shown in ~IG. 4 7 t~ a Dlaterial 15 distribu~ion chamber 1~ which i~ ~nounted ~t the rear ~f the vehicl~ 10, a~ ~hown ~n ~It;. 1. ~he conveyor belt 16 preer~bly ~tend~ into thd~ bo~tom of ~che hopper 1~ toward the f ront of the vehicle. Th~ r~te ~t el~hich the solid ~aterial6 ~re di~ch~rged from the 20 bopper 14 by the belt lC m~y be controlled by ~ther one or Ib~th OI l:he 6peed of the belt it~elf ~nd/or by the si~e s:>f the opening ~not ~h~wn) throu~h which the c~nveyor belt 16 pa~es at the rear of the hopper.
The opening ~ize may be colltrolled by an ~dju~table 25 gate ~not shown) for example.
The ~naterlal di6tribution cha~ber 18 ~
eo3~ewhat l opper ~haped itself and include~ ~ front ~all ~0, a rear wall 22, ~ pair of ~ide ~all~ 24, a topwall 26 ~nd ~ bottor~ wall 28. The laateri~l 30 di~tribution chamber 18 i~ o di~ided into ~
plur~lity o~ comp~rtments A, B ~nd t: by par~ition wall~ 30. Each of the c~mpartment6 A, B ~nd C are of ~ub~t~ntially egl~al ~e ~nd the number of ct~mp~rt~ent6 b~ ry ~n ~ccor~nce ~rit~l the nu~aber of Dateri~l outlets ~n~ t~e ~i~e of the ~pre~der.
~s be~t ~h~wn in ~Ig~ . 4 ~nd ~ ~ lthe 5 ~nveyor !belt 16 ter~ninate~ ~n the oater{al di~tribution chamber 18 ~aere ~t p~ ~e~ Dround a~s~
elong~te ~le 32 extendiJlg throu~h the ch~mber, The a~le 32 1~ ~ournaled ~or rot~t~on llpon ~uitable be~r~ng~ 33 ~t the slde ~ 24 ~f the ch~mber lB, 10 a~; ~hown in FIGS.. 2 and 5, ~nd tlle ~idth of the ~onveyor belt 16 ~6 6ub~t~n'c~11y e~au~l to ~be ~idt1b o~ the ~aterial di~tr~bution ~ha~ber 18 ~nd thæ ~um of the ~idth6 of it6 coinp~rtment~ ~, B and C. I~
will, thereby, be ~een, that the ~a eri~ls to be 15 ~pread are conveyed on the belt 16 and ~re dl~ch~rqed ln ~ubst~nti~lly equal ~mount6 to ~ach of the co~p~rt~ent$ A9 B ~nd C. 8y pro~æ~on of t}~e cr>~p~r~ment6 i~ nd C which ære of ~ubstant~lly equal ~i2e, ~ubst~nti~lly unifor~n di~tribution iB
20 ~Da~nt~ned in e~ch o the co~p~rtment~ e~en though the ~ehicle 10 Day be operating on a~ hill~ide~
A space exists between the topwall 26 ~nd the ~urface of the belt 16 ~o a~ ~o define ~n openin~
34 which con~titu~e~ a materi~l inlet to the material 25 distribution chamber 18 9 a~ be~t ~een in PIG~
~ch o the partition walls 39 18 ~l~o cut out ~t 36 to a~co~odate entry of the belt into the JDaterial distribution chamber 18 ~nd pre-divlde the ~ateriAls on the belt belEore th~y ~re discharged into the 30 re~pec'c~ve colspartment~ , B and C. This cut out 36 i6 ~l~o best seen in ~IS;. 4.
A blower 38 i~ o ~nounted ~t lthe rear of the ~ehicle lO and ~nay be driven either ~echanic~lly or ~ydraul~cally ~ hydr~ulic condu~t~ ~0 2~ ~hown ~n ~IG. 1. ~he ~l~wer 38 a3i~ch~r~e6 ~ r ~o a gener~lly tr~n~rersely e~ten~ing ~lr d~tributic ~onduit 42 ~hlcb o~erlie~ t~e topwal:l 26 of the 5 ~aterial di~tribution ~hamber 18. ~ach ~nd o~E the air di~tribotion conduit i8 ~oupled, by ~y e3f suit~ble ~ngled air conduit~ 44 ~rad fle~ible couplings ~6, to ~n air plenu~ 48~ ~ best ~een in FI~;S. 3 and 4, ~t the re~r of the ~ter~l 10 distribu~cion cha~ber lB bet~e2n it ~nd the vehiclg 101. A plurality of ~ir inlet filtting~ 50~ ff~hlch ~re progre~sively necked do~n in ~i~e, e~tend from tl~e front face of the ai~ plenum 4B~ through the re~r ~all 22 of the ~aterial distr~bution cllar~ber lB and 15 into the lower end of that chamber. The number of ~ir inlet~ 50 ~ equal to the rumber of co~part~ent~
P., B ~nd C and one oiE the air inlets lead~ to e~ch of these compartment~, a318 be~t ~een ill ~lGS. 3 and 5.
The forward end of each air ~Lnl~t 50 preerably 20 teYJDina~e~ ~n each of the cor~partment~ A, ES ~Ind C
~hort of the f ront wall 20 o~ the ~a~er~l distribution chamber 18 and the inlet end of the material o~tlet~ 52, a~ best ~een in ~IGS. ~ and 4.
A plurality of the material outlet~ 52 25 e~stend from the front wall 20 of the ~aterial di~tributi on char~ber 18 ~nd ~rom e~ch o~E it~
comp~rt~ent~ A, B ~nd C. The ~terial outlet6 52 are po~itioned ~djacent the bottom 7~all 213 of the material di~tribution chamber 18 and the6e outlet6 30 ~re ~lfio progre~sively necked down a~ best ~een in ~I~S. 3 snd ~, ~ith the l~rge diameter end thereof being loc~ted adj~cent the ~ront wall 20 of the materi~l di~tribution chamber 18. The respective --:L O -~ater~al outlet~ 52 ~nd a~r inlets 50 ~r~
~ubst~nti~lly a~ially ~ligned ~7~t~ ~ch oO~er~ ~B
~hown ~n l?IGS. 3 and 5, ~o ~hat th~ ~ir di~harg~d ~r~m the ~m~ller di~meter ends 3f the ~r ~nlet~ 50 5 ~ill t~reate ~ Yenturi effæct ~n the ~p~ce 5~
~;ho~n ~n ~IG~ 4, between the di~ch~rge erld of the air inlet~ SC ~nd the inlet ends of the 1~atcri~1 outlelt~
52 o drsw ghe sl~ateri~ls from the botto~ o the 3a~teri~1 d~6tribution ch~mber lB ~ndl propel the~e 10 ~ateri~ long with the air lthr~ugh the ~aterial outlet~ 52.
~ plurality o firæt ~terial flow sondu~t~
56 ~re coupled to e~ch of the ~teri~l outlet~ 52.
These conduits ~6 ~ay include both rigid ~nd flexible por~ion~ 57 and 58, re~pecti~ely, ~ ehown in PIG. 2, ~uc~ th~t the conduit~ 56 e~tend toward the tool b~r ~pplic~tor 9 generally C0, ~nd toward the general vicinity of the ~n~ection ~te~ on the ~pplicator ~hich ~re to be ~erviced by each of the compartment~
20 A, B ~nd C, Prior 'co continuing the ài~cu~sion of the material~ di~tri~ution ~y6tem of the preferred embodiment of pneumatic ~preader of the present invention, a brief di~cu~sion of the tool bar 25 applicator 60 it~elf will follow in order to est~bli~h ~ frame of reference for the further di~cus~ion of the ~aaterial di&tribution ~y~telD., The 'cool bar ~pplicator 6~ sho~n in FIGo 1~ i6 o~E relatively converltional con~truction 30 and incllJde~ ~n ælong~t~ boom f rame 62 ~hich i~
ounted to the rear of the Y~hicle 10 and 1~ drawn by the vehicle. q'he boom frame 62 extend~ tran6~er~ely to the directi~n of travel of the vehicle and may be 'c'~3 ~ ~
lorlg ~ $0 or ~ore feet~, ~ounted upor3 the bo~m frnme C7 ~re ~ plurAlity o~ srotat~bl~ dl8~ c~gtex~ 6 ~hich are follo~ed by ~h~ ~el blad2~ 66 . ~he ~nd ~h~ ~el blade~ ~SG cut an open~rlg in the ~o~l ~nd S ~n injector 68 s~s~unted to the rear of e~ch of the chl~el bl~de~ C6 inject~ ~nd di~char~e~ the ~ter$als wh~h ~re to be ~pread by the sy~;tem of t~e pre~ent inYent~on into that ~oil openlng.
The boom rame 62 ~ay ~1BO iinclude provi8ion ~or a ~arker 8y8tellll 70, a~ ~ho~n ~n ~IG. 1, for ~arking the edge~ of the swath which i~ to be treated by ~he a~embly of ~he pre~ent lllvent~ on.
Such ~arking ~y~tem slay either depo~it ~ powder o~
~o~m marker ~nd doe~ not con~titulte ~ part of the 15 pre~ent invention, Isl ~ddition~ itching bar 72 ~nay be c~rried upon the boom frame for bitch~ng ~nDther ~ncill~ry vehicl~ to the rear of the ~eb~cle lû. ~ydr~ulic cylinder~ 7il ~ay als~ be provided, ~s ~ho~n in ~IG. 1~ or rigging the bo~m ~r~me 62 ~n uld 20 out for tr~ port and ~tor~gel, Returning to th~ di~c~ ion of the material6 distribution ~y~tern, the fir~t material flow conduit~ 56 ~nd their rigid and flexible p~rtion~ 57 ~nd 5~ are sarried upon the b~om f rame 62 25 al~ ~;ho~n ~n PIG. 1. The conduit 56 le~dlng ro~
c:olDpar~cment A of the materi~l di~tribution chamber 18 serv~ce~ the injector~ 68 on the left ~ide o~ the bo~ frame 62~ ~ viewed ~n FIG. 1, the conduit 56 leadinq from comp~rtment B ~ervice~ the ceJlter 33 injector~, ~nd the cond~ait 56 leading f~om compartment C ~ervice~ the injecto3rs on the right ~ide of th2 boom f r~me 62 .
3, ~
~ ach of the f~r~t D~teri~ w condu1t~ 56 ter~in~te~ ln ~ rlgid ~ect~on 76 ~ ~bown ~n PIG~. 19 2 d~nd 6. R~gld condu~t ~ection 76 it~elf t;~r~inat@~
d~wnstre~m ~n a flared ~rti~n 71B ~th ~hlch a 5 plural~y of Isecond ~ at~rial flo~ conduit~ 30 communicatæ to the indisidu~l iLn~ecl:ors 68~ ~e rig~d conduit secltion 76 ~ay ~ 80 include ~ rlng sh~ped or other suit~bly ~h~ped flo~r ~h~per 81 therein~ ho~n in ~IG. 6, to sh~pe the ~low for 10 ~ccurate i~pinge~er~t on t~e flow dil3tribu or Ir the latter of ~hich ~111 now Ibe ~e~cribed.
preferred embodi~nen~ of ~Elow di~1:riLbutor ~2 or 82 ' 1~ it~orle~ ln the flared portl~n 78 alt the ~unc~ure between eac21 oiE the fir~t material fl~
15 conduit~ 56 and their ~ecorld condu~tR 80, ~ be~t ~een ln ~
Referr~g to lFIGsD ~ 8, one preferred embodi~De~at of ~low di6txibutor 82 ls ~hown. ~he flo~
di~trlbutor ~2 co~Dpri~es ~ gener~ly planar clrcul~r ~ plate 8~ ha~ring a plur~l~ty o~E openlngs 86 8paCel3 r~dially ~bout t~e center o lthe pl~te. ~ach of tbe openings 86 leads to one of the ~econd conduit~ 80 and co~ununicate~ the fir~t conduit 5~ w~h it~
re~pective ~econd conduits. A three dimen~ional, 25 ~olid ~haped deflector 88 is located ~t tlle f ront f~ce of the plate 84 and extend~ up~tre~n into khe 10w pas~ing through the ~ir~t conduit S6. ~ Ishown in he dr~wing~, the ~enerally preferred ~hape of the ~Elow deflector 8B i~ ~ub~t~ntially ~onical.
3~ ~he deflector 88 i~ ~ounted to the front f~ce o 1:he pl~te 84 preferably by w y c~f an elong~e slot 90 ~hich pas6e~ through the center of the pl~te 84 ~nd ~ pin 92 on the ba~e of the deflector 88. The pin 92 ~i~ prefer~ly ecc~ntrlc~lly off~et rom the 35 cenJcer o the ba~e of the deflector 1~8 to allow eccentrlc rot~table ~dju6tment of the deflQctor relativ~ to the spenin~ ~6. ~ be~t ~ho~dn ln ~IGS.
7 ~nd 8, the pin 92 ea~end6 through the ~lot 90 ln the plate ~nd the defle~tor 88 ~y tbereby be 5 ~dju~ted ~lt~2r linearly by ~oving the pin up ~nd down in the $10t 1~ own in FIG. 80 or eccentri~ally by rot~ting the de1ector ~out it~ eccentric pin 92.
Accordingly, the posit$on s~f the dePlector ~8 ~y be re~dily adju6ted rel~tive 'co the opening~ ~6 leadlng 10 to the second conduits 80 ~ 'che latter o~ ~hi~h es~tend rom the ocher ~de of the plate 8~, to ~d~u~t the flow p~s~ng through the fir~'c collduit 56 ~o th~t t~e IElo7d i~ equa11y and un$fsr~1y di~tr~bulted to ~ch of the ~econd condui~6 ~nd, thereby" to e~cl o~ the 15 injector~ 68. ûnce the flow di6tributor has been proper1y adju~ted, the the def1ector 88 m~y be locked to he p1~te 84 by lthreading a 1~ck nut 94, ~ bOWD
~n ~IG . 11, OJltO the p~ n 92 ., A ~econd e~nbo~i~nent ~f ~10w di6tributor B2 ' 20 i~ ow~ ~n ~IGS. 9 ~nd 10. Th~s ~econd embodi~nent include~ the 6ame p1~te 84 ~nd def1ector 88 ~
previou~ly di~cu~6ed ~ith respect to ~IGS.. 7 ~nd 8.
~ccordingly, like reference numeral~ will be emp10yed to de~ignate like element~ of thi~ ~e~ond embodiment.
In this emb~di~nent, however ~ an ~ditional ~rre~u1~r1y shaped p1~te 96 h~ving an elongate $10t 98 h~ been adde~ to the flow di~tribu'cor 82 ' between the f ront f~ce o~ the p1ate 84 snd tlle b~e of the def1ector 88. The eccentric pln 92 of the ~e1ector 88 ~ 80 pa~&e~ throl~gh the ~10~ 9B of p1~te 96 ~o mount the 1~tter p1~te to the pl~te 84. Bec~u~e of the oe10t 98 in the p1~te 96, th~6 1~tter plate ~ay a160 be both 1inear1y, a~ well a~ rotatably eccentric~lly ~d~u~ted about pin 92 ~o that portion~
of the peri~eter of the plate g6 ~y be pogitioned to overl~e part~ of certa~n ~f the opening~ 86 ln the pl~te B4, ~ ~hown ln ~G. lû. The pr~vl~lon of the ~dition~l p1~te 96, thereby, w$11 ~llow for an incre~ed r~rlge of ad~u~tment oYer the e~odi~lDent 8~0~ n ~IGS~ 7 ~nd 13 ~dh~ch only ~n~lude~ the deflector ~8.
If de~ired, ~ g~uge 100 2i~ay be provided on 'cbe out~r face of the plate 84 and on he ~ide ~r~
~hich the ~eco~d condui t6 80 e~tend f ro~ the plate ~
i.e. the e~terior side oiE the pl~'ce B~. E;uch gauge i~ u~eful ~s a vi~u~l indic~t~on of the ~d~u~t~erlt p~ition o~ the elefl~ctor 8B d!ll6 will be descrlbed tQ
cllow.
The preferred embodi~aent of qauge 6hown in ~IG., ll ~clopr~e~ ~ slrcular di~c 102 ~hich 2ay be fi~ed to the outer face of the pl~te 8~ ~nd ~ilthin t~e confine~ of the opening~ 86 in the plate 84~ ~rhe diBC 102 al80 i~aclude~ a ~lot 10~, preer~bly ln ~e c@nter thereof, ~hich 1~ of lthe ~ame ~2e and configur~tion ~ the 610t ~0 ~n plate 84. The sl~t 104 in di6c 1û2 is po~itioned to overlie the ~lot 9Q.
A plurality of linear indicia 106 are ~cribed or other~ise marked on the f~ce of the di c 102 ~djacent the 81Ot 10~, ~6 $ho~n in ~IG~ 11. In ~ddition, plurality of ~nqul~r ~ndici~ lOB are ~l~o 6cribed or other~e ~arked upon the fac~ oP di~c 102 ~sbout its circumferenceO A~ ~hown ~n ~IG. ll ~ the~e ~nyular lndic~a 10~ ~ay take the orm of ~ clock di~l.
Bowe~reF, other lndic:la, such a~ degree ~ndic~, could o be u~ed. An ~Irrow ~r other marklrlg 110 ~
~cribed or otherwi~e imprinted upon the end of the pin 92 o the deflector 88 e~hich, ln cooperation ~ith ~he an~ul~r indisi~, ~re~ent6 a ~ uial ind$c~tlon o the degree of eccentric rot~'cion of the de~lector 8B.
The l~ne~r lndici~ 106 present an lndlcaltion of the 5 degree or ~ount of lirlear ~dgu~tment of the pin 92 and ~t~ de~lector ~8 in the ~lot 90 of pl~e ~4~
By sray of e~mple, the de1ector 88 ~nay be ~dju~ted at the f~ctory prior to the deli~ery of the pneumatic ~preader o~ the pre~ellt inven~ ion 1D order lo to obtairl ~n equal ~Inifor~ di$trlbution of the ~low of ~a$eri~1~ through the ~ever~l opening6 ln pl~te 84 and, thereby, tbrough the ~econd ~onduit~ IB0 and ~heir refipectave ~njec~or~ 68O On~e t~ dju6tment h~s been 3~de, tbe three di~en~iorlal defl2ctor 88 a~ay 15 ~e los~ked in plas~e by ~he lock nut 94 0 ~s shown iLn PIG, 11 alnd the linear and eccentric ~dju~tment ~
~hown by the indicia ~n the di~c 10~ y Ibe re~orded ~or that a$sembly. If during operatiorl o t21e ~preader or due to re~dju~tment in the ield o~ the 20 fl~w di~;tributor by the oper~tor, the flow di~t~ibutor ~nove~ out o ~djustraent~ the de~ree to which it ha~ moved out of ~dju~tment may be readily determined by reference to the recorded factory adju~tment ~etting~ ~and re-adju~tment may be quickly 2 5 D cc ompl i ~hed ~
~ lthough it i6 bel~eved that the operation of the pneumatic 8preader and flo~ di~tributor of the pre6ent invent~on ~ill be clear to tho~e ~k~lled in the ~rt fro~ the foregoing description7 ~ brief 30 àe~crip~ion of operation ~ill follow., To ~ommence operatiorl~ the blower 3B ~6 energi2ed together wilth the conveyor belt 1~. The a~oving cQnveyor belt will convey the ~aterials to be ~pre~d f rom the ~opper 1~ of the Yehlcle 10 a~: a controlled r~te ~nd di~charge ~he ~ater~al13 ~1, a~
E;ho~n ~n ~IG. ~, in~o tlle ~a~ter~l di~ltributio~
ch~mber 18. The~e ~terials P~ill be eql~lly div~ded 5 by t~e p~rtition ~ 30 between co~partment~
~nd 1: of the ssJa erlRl digtribut~on chamber lB, a~
sho~n ~n F~G~ . 3 ~nd 5 ~ and the ~ter~
to~rd the bottom of lthege re~pective co~part~entl3.
Air pa~e~ from the blower through lthe ~1~ r 10 di~tribution conduit ~2~ the ~ngled ~ir con~uit~ 44, and into each ~ide of tbe ~ir plllenum ~8. The ~ir in the a~ r plenulD 48 ~ill ~l~o be eqll~lly d~ ~clharged through the re~pect1v2 air inlet~ 50 islto the ib~tto~
of the ~ater~al di. ~r~bution chamber 18. Be~use t~e 15 ~ir ~nlet6 50 ~re necked down toward ~hei r discharge end~, a~ ~ho~n in FIGSo 3 ~nd 4, the ~elocaty of th~
~ir ~ill l~crea~e to cre~te ~ ~entur~ efec~ ln the ~pa~e 5~ of each of the compart~ent~ A, B ~nd C in the ~aterial d~tribution ~ er lB. Thi~ ~enturi 20 e~ec~ ill propel the ~ateri~ls 1~ in the ~pace S~
~nto the re~pectlve ~ateri~l olltl~t6 52.
~ rom the ~aterial outlet~ 52, the ga~ ~nd material~ will flQw through the re~pective fir~t material flow conduit~ 56 to the rigid conduit 25 ection 76 of each of the conduit and i ts 1ared portion 78. The flow pa~ing through the fir~t conduit ~nd ~t~ 1ared portion 78 ~ill be di~'cributed equ~lly uniformly lthrou~h e~c~ of the ~everal opening~ 86 in the plate 8~l of the flow ~i~tr~butor 30 82 due to the ~dju6tment of the three dimen~onal deflector 88 ~nd the ~dditional two di~ensional pl~te ~6 t lf ~t i~ p~e~ent. Once di6tr1buted uniformly to ~acll of the opening~, the flow of ~ateri~ ill pa~
~,f~ t~
through the ~econd ~ateri~l flow ~on~uitæ 80 to e~ch of the ~n~ectors ~8 ~here the ~t~rials v~l~ be unlfor~ly in~ect~d into the open~ngs ~l~t 13l th~
by the dliLBC6 6d ~Ind chisel bl~e~ 66 of l~he tool bar 5 ~pplicator 60~
It ~ e 6een that al~houyh the three di~en~i~nal sol~d ~haped deflector 88 ha6 been shown a~ Ibeinq ~ubst2nti~11y conic~ nay llot be e~actly conic~l. Indeed, the ~e~ ctor 88 ~ho~n in 10 the drawing~ ~ not e~ctly conic~ loreover, other three dimen6ion~1 ~olid ~hape~, e.g. lhemi~p~eric~l shape~, ~ay be operable depending up~n the di~t~nce ~t ~hich the openings 86 l~rc ~paced fro~ the cen~er o~ the pl~te 84 ~ the nature of the Dateri~læ and 15 their flow r~te. I40reover, t~e deflector ~ay ~as~u~e other three di~en~ion~l ~h~pe~ d~pending upon the ~hape o~ the plate ~4, ~uch a~ ~here the plate elliptical or some ~hape other than circular.
It ~ill also be ~een th~t the prine~ple~ of ~ the present inYention ~nay be equ~lly ~ppl~c~ble to the ~preadin~ o~ aterial~ other than 6~1id6, ~uch liql~id~, and are ~l~o ~pplicable to u~e with applicator~ other than t~ol bar Applicator6, ~l~ch a~
broadca~t applicat~r~. The pre~ent inYention ha~
25 been described ~ith reference t~ a to~l b~r g~pplicator herein only f~r Rurp~e~ of frame of reference .
~ inally, it ~ill also be underfitood tha~
the embodi~ent~ OI tlle pre~ent inYention which have 30 - been de~cribed ~re ~erely ~llu~trat~ve of ~n applicat~on of the principle~ of the invention.
~umerou~ mod~ fi~at~on~ ~aay be ~aade by tho~e ~killed iLn the ~rt without departin~ f rom the 6pi rit and scope of 8:he invention.
Xn ~till anotl~er princip~l a~pect of the pre~ent invention, the last ~entioned ~Gveme~t of the deflect~r ~ay be either eccenltric ~nd,~or linear relatiYe 'co the center of the pla~e.
.3~
In ht~ nother princip~ ;pect o~ the pregen~ lnvention, ~n the ~iEore~entloned 10~
defl~tor~ J ~ec~nd plat~ ~ay Ibe p~s~g~oned bet~een t~e plate ~nd the second plate i~ al~o s~lovable ~o ~over ~t le~t a por~on of ~o~e of the ope~a~ ng~., In $till a3l0ther prin~ip~l ~spe~t of the present inYention~ tbæ pl~n~r pl~te 1~ ~ub6t~ntially ~ircular ~nd e~h of the opening~ i8 po~it~or~ed radi~lly about t~e ~enter of the plate, ~nd the three dimen3ion~1 solid shaped deflector i~ ~ubst~nti~lly coni~al in ~hape, In stlll another principal a$pe~t of the ~refient lnventlon, ~ 10w distrlbuto~ ~or uni~or~ly di~tributing ~ ~low of ~aterial~ between a plur~lity of condui~c~ include~ a plate h~ving ~ plur~lity of open~ngs througll the plate ~ ~ f i P~t condui~ fo~
~03nmun~c~tiLng a flow of ~ater~al~ wlth one 6~Lde o the pl~te ~s~d the openlrl~$, anâ ~ plur~l~ty of ~e~olld conduit~ commuQl~t~ng ~ith the other side o t~e plate, e~ch o~ the ~e~osid ~onduit~ coDnun~l:stin~ e~ith one of the opening~ to receiYe the ~a'ceri~ls w~ich flow through the openings, A deflector is po~itioned adjacent the one ~ide of the plate for deflecting the flowing material~ toward the openiny~, the deflector e~tendlng toward the fir~t conduit ~Ind into the ~Elow~ng ~naterl~l~9 ~nd the deflector i~ aounted to ~nove relatiYe 'co the open~ng~ to adju~t the amount~
of the ~&~er~ deflected by the deflector to re~pective one~ of the open~ng~.
In ~till ~nother principal afipect of the pre~ent ~nYention, the la~t ~entioned plate ~
~ub~tantially pl~nar anà the deflector i~ a three dimen~i~nal ~hapeO
--S--'7~
In ~till ~nother pr~nc~pal ~pecoc of t~e pxe~ent ~nYention, t~e laBt ~entioned ~efle~gor ~s ~ourlted to ~ve eccentrically ~nd/or line~rly relatlqe to ~he center of the pl~te,.
S ~n ~ill another pr~ncip~l ~gpe~t of t~e pre~ent in~ention~ the flow t~i~tributor lnclude$ ~
second plste between the pl~te ~nd the de~lector ~nd the second pl~te i~ ~vable 'co co~@r ~t lea~t a portion o ~ome of ~he opening~ in t~e pla~e~
In ~till anot!hex lpr~rlcip~ pect of the pre~ent in~ention; the deflector include~ dic~a vi~ble from the other ~i~3e o~ the plate ~hich indicate~ the po~ition to ~hich the deflector h~
been ~oYed~
In ~till another principal ~pect of the present invention, the planar pla~e of the flow de~lector ~ ~ub&tanti~lly circul~r and ~wh of the openlngs ~ p~itioned radially ~b~ut the center of the plate, ~nd the t~ree di~en~ional ol~d ~haped deflec or i~ $1lbE;t~ lly con~c~l ~n ~) ape.
These and other ob3e~t~, feature~ ~nd ~dvantages OI 'che pre~ent invention will be more clearly under~tood through a con6ideration of the following detailed description.
BRI~ DESC:RIPl'ION OF T~E DRMINGS
In the course ~f thi6 de~cription, reference will fre~uently be ~ade to the ~ttached . dra~ing~ in ~hi~h:
~ ;o ~ a rear per6pectiYe Yiew of a ~ateri~ pplicator of the type haYing a tosl bar ~embly ~nd in which the pneumatic ~pre~der ~nd flow di~triblltor of the pre~ent inveritiorl may be $ncorporated5 i'$~
FIGD 2 ~s ~n enlarged, re~rO broken, perspect~ve ~ew o the pneu~D~tic ~preade ~ho~n in ~IG. 1~
FIG. 3 is o broken~ pl~n ~iew of the 5 di~tribu~ion ~h~mber of eche ~preader ~ ewedl ~ubstan~lly ~long llne 3-3 o~ FIG.. 2 p but ~th the air bloe"er ~e~bly" c~alaber top~all and se~eral of the condults removed5 I?IGo 4 ill3 a cross-s@ct~oned 8~d~ ation 10 vîe~ of the pneumatic ~preader di~tribution cha~ber ~nd air conduit6, ~ ~ iewed ~ubst~nti2l11y along line ~-~ o~ ~IG~ ~S
~ IG. 5 1~ end elev~t~on view of the pnellmatic spre~er di~t~ibutiorl cha~ber ~nd ~r 15 di~tribu~ion sy~tela,, a~ ~iewed ~ubæt~nt~lly ~lor3g l~ne 5-5 of FIG., 4S
~ IG. C 1~ ~ brok~n ~ide ~lev~tlorl ~ie~ of one of tlie ~teri~ lo~ condui~s of ~he preferred ~odi~ent of pneumatic ~preader o~ the pr~s~nt 20 lnvention ~nd 1 8 ~low dl~tributor~
~ I~. 7 is an exploded per~pec~ive vle~ of the f low di6tr ibutor sho~n i an ~IG . 6;
FIG. 8 i~ ~ rear eleYation ~riew of the as~embled flow distributor shown in ~IG. 7 and 25 viewe~ ~rom th~ left in ~IGo 6~
FIG. 9 i~ ~n e~p~ oded p~r~pecti~re ~ie~ o a ~eco~ad e~bodi~aent of flo~ di~ributor incorporatillg th~ princaple~ of the pre~ent ln~entioll~
~ IG., 10 ~8 ~ r~r ~levati~on ~e~ o the 30 ~6~e~ d ~ecosld embodi~ent o~ ~low d~tributo~ ~ho~n in ~I~. gy but ~8 ~ wed ~o~ tl~ Et ln FI~;~ 6~ ~nd ~ IG~ a broken~ end el~Yation view of preferred er~bodimen~ of Jdjust~sent g~uye for either o the aors~menti~ned flo~ d~trlbutor embodiDIent~,.
T~ C~e~
In l?IGo 1 ~!1 Yeh~lLcle 10 ihaV~ 9 ~I pr~ferred embodi~ent of pneuaatic ~p~e~der 12 ~nca3rpor~ting tbe principle~ of the pre~ent lnvent~on 1~ own. ~he 5 ~ehicle 10 includes ~ hopper 1~ ~or cont~ini~g ~nd transp~rt~ng the ~ater~al~ ~hi~h ~re to be ~pread by tbe spreader of the pre6ent inv~nt~on. I~ ghe pre~ent drawings, the hop~r 1~1 ~hich i~ shown 1~ one ~Ihich contain~ ~olid particul~te ~terial~ 6uch ~
10 for ea~ample, fertilizer ~hich ~g to be ~pplied to ~e ~oil by the pneu~D~tic ~pre~der 12.
The ~olid particulate~ in the ~pper 1~ ~re dischxlrged from the rear o~ t~e h~pper by a con~eyor belt 16 ~ a~ shown in ~IG. 4 7 t~ a Dlaterial 15 distribu~ion chamber 1~ which i~ ~nounted ~t the rear ~f the vehicl~ 10, a~ ~hown ~n ~It;. 1. ~he conveyor belt 16 preer~bly ~tend~ into thd~ bo~tom of ~che hopper 1~ toward the f ront of the vehicle. Th~ r~te ~t el~hich the solid ~aterial6 ~re di~ch~rged from the 20 bopper 14 by the belt lC m~y be controlled by ~ther one or Ib~th OI l:he 6peed of the belt it~elf ~nd/or by the si~e s:>f the opening ~not ~h~wn) throu~h which the c~nveyor belt 16 pa~es at the rear of the hopper.
The opening ~ize may be colltrolled by an ~dju~table 25 gate ~not shown) for example.
The ~naterlal di6tribution cha~ber 18 ~
eo3~ewhat l opper ~haped itself and include~ ~ front ~all ~0, a rear wall 22, ~ pair of ~ide ~all~ 24, a topwall 26 ~nd ~ bottor~ wall 28. The laateri~l 30 di~tribution chamber 18 i~ o di~ided into ~
plur~lity o~ comp~rtments A, B ~nd t: by par~ition wall~ 30. Each of the c~mpartment6 A, B ~nd C are of ~ub~t~ntially egl~al ~e ~nd the number of ct~mp~rt~ent6 b~ ry ~n ~ccor~nce ~rit~l the nu~aber of Dateri~l outlets ~n~ t~e ~i~e of the ~pre~der.
~s be~t ~h~wn in ~Ig~ . 4 ~nd ~ ~ lthe 5 ~nveyor !belt 16 ter~ninate~ ~n the oater{al di~tribution chamber 18 ~aere ~t p~ ~e~ Dround a~s~
elong~te ~le 32 extendiJlg throu~h the ch~mber, The a~le 32 1~ ~ournaled ~or rot~t~on llpon ~uitable be~r~ng~ 33 ~t the slde ~ 24 ~f the ch~mber lB, 10 a~; ~hown in FIGS.. 2 and 5, ~nd tlle ~idth of the ~onveyor belt 16 ~6 6ub~t~n'c~11y e~au~l to ~be ~idt1b o~ the ~aterial di~tr~bution ~ha~ber 18 ~nd thæ ~um of the ~idth6 of it6 coinp~rtment~ ~, B and C. I~
will, thereby, be ~een, that the ~a eri~ls to be 15 ~pread are conveyed on the belt 16 and ~re dl~ch~rqed ln ~ubst~nti~lly equal ~mount6 to ~ach of the co~p~rt~ent$ A9 B ~nd C. 8y pro~æ~on of t}~e cr>~p~r~ment6 i~ nd C which ære of ~ubstant~lly equal ~i2e, ~ubst~nti~lly unifor~n di~tribution iB
20 ~Da~nt~ned in e~ch o the co~p~rtment~ e~en though the ~ehicle 10 Day be operating on a~ hill~ide~
A space exists between the topwall 26 ~nd the ~urface of the belt 16 ~o a~ ~o define ~n openin~
34 which con~titu~e~ a materi~l inlet to the material 25 distribution chamber 18 9 a~ be~t ~een in PIG~
~ch o the partition walls 39 18 ~l~o cut out ~t 36 to a~co~odate entry of the belt into the JDaterial distribution chamber 18 ~nd pre-divlde the ~ateriAls on the belt belEore th~y ~re discharged into the 30 re~pec'c~ve colspartment~ , B and C. This cut out 36 i6 ~l~o best seen in ~IS;. 4.
A blower 38 i~ o ~nounted ~t lthe rear of the ~ehicle lO and ~nay be driven either ~echanic~lly or ~ydraul~cally ~ hydr~ulic condu~t~ ~0 2~ ~hown ~n ~IG. 1. ~he ~l~wer 38 a3i~ch~r~e6 ~ r ~o a gener~lly tr~n~rersely e~ten~ing ~lr d~tributic ~onduit 42 ~hlcb o~erlie~ t~e topwal:l 26 of the 5 ~aterial di~tribution ~hamber 18. ~ach ~nd o~E the air di~tribotion conduit i8 ~oupled, by ~y e3f suit~ble ~ngled air conduit~ 44 ~rad fle~ible couplings ~6, to ~n air plenu~ 48~ ~ best ~een in FI~;S. 3 and 4, ~t the re~r of the ~ter~l 10 distribu~cion cha~ber lB bet~e2n it ~nd the vehiclg 101. A plurality of ~ir inlet filtting~ 50~ ff~hlch ~re progre~sively necked do~n in ~i~e, e~tend from tl~e front face of the ai~ plenum 4B~ through the re~r ~all 22 of the ~aterial distr~bution cllar~ber lB and 15 into the lower end of that chamber. The number of ~ir inlet~ 50 ~ equal to the rumber of co~part~ent~
P., B ~nd C and one oiE the air inlets lead~ to e~ch of these compartment~, a318 be~t ~een ill ~lGS. 3 and 5.
The forward end of each air ~Lnl~t 50 preerably 20 teYJDina~e~ ~n each of the cor~partment~ A, ES ~Ind C
~hort of the f ront wall 20 o~ the ~a~er~l distribution chamber 18 and the inlet end of the material o~tlet~ 52, a~ best ~een in ~IGS. ~ and 4.
A plurality of the material outlet~ 52 25 e~stend from the front wall 20 of the ~aterial di~tributi on char~ber 18 ~nd ~rom e~ch o~E it~
comp~rt~ent~ A, B ~nd C. The ~terial outlet6 52 are po~itioned ~djacent the bottom 7~all 213 of the material di~tribution chamber 18 and the6e outlet6 30 ~re ~lfio progre~sively necked down a~ best ~een in ~I~S. 3 snd ~, ~ith the l~rge diameter end thereof being loc~ted adj~cent the ~ront wall 20 of the materi~l di~tribution chamber 18. The respective --:L O -~ater~al outlet~ 52 ~nd a~r inlets 50 ~r~
~ubst~nti~lly a~ially ~ligned ~7~t~ ~ch oO~er~ ~B
~hown ~n l?IGS. 3 and 5, ~o ~hat th~ ~ir di~harg~d ~r~m the ~m~ller di~meter ends 3f the ~r ~nlet~ 50 5 ~ill t~reate ~ Yenturi effæct ~n the ~p~ce 5~
~;ho~n ~n ~IG~ 4, between the di~ch~rge erld of the air inlet~ SC ~nd the inlet ends of the 1~atcri~1 outlelt~
52 o drsw ghe sl~ateri~ls from the botto~ o the 3a~teri~1 d~6tribution ch~mber lB ~ndl propel the~e 10 ~ateri~ long with the air lthr~ugh the ~aterial outlet~ 52.
~ plurality o firæt ~terial flow sondu~t~
56 ~re coupled to e~ch of the ~teri~l outlet~ 52.
These conduits ~6 ~ay include both rigid ~nd flexible por~ion~ 57 and 58, re~pecti~ely, ~ ehown in PIG. 2, ~uc~ th~t the conduit~ 56 e~tend toward the tool b~r ~pplic~tor 9 generally C0, ~nd toward the general vicinity of the ~n~ection ~te~ on the ~pplicator ~hich ~re to be ~erviced by each of the compartment~
20 A, B ~nd C, Prior 'co continuing the ài~cu~sion of the material~ di~tri~ution ~y6tem of the preferred embodiment of pneumatic ~preader of the present invention, a brief di~cu~sion of the tool bar 25 applicator 60 it~elf will follow in order to est~bli~h ~ frame of reference for the further di~cus~ion of the ~aaterial di&tribution ~y~telD., The 'cool bar ~pplicator 6~ sho~n in FIGo 1~ i6 o~E relatively converltional con~truction 30 and incllJde~ ~n ælong~t~ boom f rame 62 ~hich i~
ounted to the rear of the Y~hicle 10 and 1~ drawn by the vehicle. q'he boom frame 62 extend~ tran6~er~ely to the directi~n of travel of the vehicle and may be 'c'~3 ~ ~
lorlg ~ $0 or ~ore feet~, ~ounted upor3 the bo~m frnme C7 ~re ~ plurAlity o~ srotat~bl~ dl8~ c~gtex~ 6 ~hich are follo~ed by ~h~ ~el blad2~ 66 . ~he ~nd ~h~ ~el blade~ ~SG cut an open~rlg in the ~o~l ~nd S ~n injector 68 s~s~unted to the rear of e~ch of the chl~el bl~de~ C6 inject~ ~nd di~char~e~ the ~ter$als wh~h ~re to be ~pread by the sy~;tem of t~e pre~ent inYent~on into that ~oil openlng.
The boom rame 62 ~ay ~1BO iinclude provi8ion ~or a ~arker 8y8tellll 70, a~ ~ho~n ~n ~IG. 1, for ~arking the edge~ of the swath which i~ to be treated by ~he a~embly of ~he pre~ent lllvent~ on.
Such ~arking ~y~tem slay either depo~it ~ powder o~
~o~m marker ~nd doe~ not con~titulte ~ part of the 15 pre~ent invention, Isl ~ddition~ itching bar 72 ~nay be c~rried upon the boom frame for bitch~ng ~nDther ~ncill~ry vehicl~ to the rear of the ~eb~cle lû. ~ydr~ulic cylinder~ 7il ~ay als~ be provided, ~s ~ho~n in ~IG. 1~ or rigging the bo~m ~r~me 62 ~n uld 20 out for tr~ port and ~tor~gel, Returning to th~ di~c~ ion of the material6 distribution ~y~tern, the fir~t material flow conduit~ 56 ~nd their rigid and flexible p~rtion~ 57 ~nd 5~ are sarried upon the b~om f rame 62 25 al~ ~;ho~n ~n PIG. 1. The conduit 56 le~dlng ro~
c:olDpar~cment A of the materi~l di~tribution chamber 18 serv~ce~ the injector~ 68 on the left ~ide o~ the bo~ frame 62~ ~ viewed ~n FIG. 1, the conduit 56 leadinq from comp~rtment B ~ervice~ the ceJlter 33 injector~, ~nd the cond~ait 56 leading f~om compartment C ~ervice~ the injecto3rs on the right ~ide of th2 boom f r~me 62 .
3, ~
~ ach of the f~r~t D~teri~ w condu1t~ 56 ter~in~te~ ln ~ rlgid ~ect~on 76 ~ ~bown ~n PIG~. 19 2 d~nd 6. R~gld condu~t ~ection 76 it~elf t;~r~inat@~
d~wnstre~m ~n a flared ~rti~n 71B ~th ~hlch a 5 plural~y of Isecond ~ at~rial flo~ conduit~ 30 communicatæ to the indisidu~l iLn~ecl:ors 68~ ~e rig~d conduit secltion 76 ~ay ~ 80 include ~ rlng sh~ped or other suit~bly ~h~ped flo~r ~h~per 81 therein~ ho~n in ~IG. 6, to sh~pe the ~low for 10 ~ccurate i~pinge~er~t on t~e flow dil3tribu or Ir the latter of ~hich ~111 now Ibe ~e~cribed.
preferred embodi~nen~ of ~Elow di~1:riLbutor ~2 or 82 ' 1~ it~orle~ ln the flared portl~n 78 alt the ~unc~ure between eac21 oiE the fir~t material fl~
15 conduit~ 56 and their ~ecorld condu~tR 80, ~ be~t ~een ln ~
Referr~g to lFIGsD ~ 8, one preferred embodi~De~at of ~low di6txibutor 82 ls ~hown. ~he flo~
di~trlbutor ~2 co~Dpri~es ~ gener~ly planar clrcul~r ~ plate 8~ ha~ring a plur~l~ty o~E openlngs 86 8paCel3 r~dially ~bout t~e center o lthe pl~te. ~ach of tbe openings 86 leads to one of the ~econd conduit~ 80 and co~ununicate~ the fir~t conduit 5~ w~h it~
re~pective ~econd conduits. A three dimen~ional, 25 ~olid ~haped deflector 88 is located ~t tlle f ront f~ce of the plate 84 and extend~ up~tre~n into khe 10w pas~ing through the ~ir~t conduit S6. ~ Ishown in he dr~wing~, the ~enerally preferred ~hape of the ~Elow deflector 8B i~ ~ub~t~ntially ~onical.
3~ ~he deflector 88 i~ ~ounted to the front f~ce o 1:he pl~te 84 preferably by w y c~f an elong~e slot 90 ~hich pas6e~ through the center of the pl~te 84 ~nd ~ pin 92 on the ba~e of the deflector 88. The pin 92 ~i~ prefer~ly ecc~ntrlc~lly off~et rom the 35 cenJcer o the ba~e of the deflector 1~8 to allow eccentrlc rot~table ~dju6tment of the deflQctor relativ~ to the spenin~ ~6. ~ be~t ~ho~dn ln ~IGS.
7 ~nd 8, the pin 92 ea~end6 through the ~lot 90 ln the plate ~nd the defle~tor 88 ~y tbereby be 5 ~dju~ted ~lt~2r linearly by ~oving the pin up ~nd down in the $10t 1~ own in FIG. 80 or eccentri~ally by rot~ting the de1ector ~out it~ eccentric pin 92.
Accordingly, the posit$on s~f the dePlector ~8 ~y be re~dily adju6ted rel~tive 'co the opening~ ~6 leadlng 10 to the second conduits 80 ~ 'che latter o~ ~hi~h es~tend rom the ocher ~de of the plate 8~, to ~d~u~t the flow p~s~ng through the fir~'c collduit 56 ~o th~t t~e IElo7d i~ equa11y and un$fsr~1y di~tr~bulted to ~ch of the ~econd condui~6 ~nd, thereby" to e~cl o~ the 15 injector~ 68. ûnce the flow di6tributor has been proper1y adju~ted, the the def1ector 88 m~y be locked to he p1~te 84 by lthreading a 1~ck nut 94, ~ bOWD
~n ~IG . 11, OJltO the p~ n 92 ., A ~econd e~nbo~i~nent ~f ~10w di6tributor B2 ' 20 i~ ow~ ~n ~IGS. 9 ~nd 10. Th~s ~econd embodi~nent include~ the 6ame p1~te 84 ~nd def1ector 88 ~
previou~ly di~cu~6ed ~ith respect to ~IGS.. 7 ~nd 8.
~ccordingly, like reference numeral~ will be emp10yed to de~ignate like element~ of thi~ ~e~ond embodiment.
In this emb~di~nent, however ~ an ~ditional ~rre~u1~r1y shaped p1~te 96 h~ving an elongate $10t 98 h~ been adde~ to the flow di~tribu'cor 82 ' between the f ront f~ce o~ the p1ate 84 snd tlle b~e of the def1ector 88. The eccentric pln 92 of the ~e1ector 88 ~ 80 pa~&e~ throl~gh the ~10~ 9B of p1~te 96 ~o mount the 1~tter p1~te to the pl~te 84. Bec~u~e of the oe10t 98 in the p1~te 96, th~6 1~tter plate ~ay a160 be both 1inear1y, a~ well a~ rotatably eccentric~lly ~d~u~ted about pin 92 ~o that portion~
of the peri~eter of the plate g6 ~y be pogitioned to overl~e part~ of certa~n ~f the opening~ 86 ln the pl~te B4, ~ ~hown ln ~G. lû. The pr~vl~lon of the ~dition~l p1~te 96, thereby, w$11 ~llow for an incre~ed r~rlge of ad~u~tment oYer the e~odi~lDent 8~0~ n ~IGS~ 7 ~nd 13 ~dh~ch only ~n~lude~ the deflector ~8.
If de~ired, ~ g~uge 100 2i~ay be provided on 'cbe out~r face of the plate 84 and on he ~ide ~r~
~hich the ~eco~d condui t6 80 e~tend f ro~ the plate ~
i.e. the e~terior side oiE the pl~'ce B~. E;uch gauge i~ u~eful ~s a vi~u~l indic~t~on of the ~d~u~t~erlt p~ition o~ the elefl~ctor 8B d!ll6 will be descrlbed tQ
cllow.
The preferred embodi~aent of qauge 6hown in ~IG., ll ~clopr~e~ ~ slrcular di~c 102 ~hich 2ay be fi~ed to the outer face of the pl~te 8~ ~nd ~ilthin t~e confine~ of the opening~ 86 in the plate 84~ ~rhe diBC 102 al80 i~aclude~ a ~lot 10~, preer~bly ln ~e c@nter thereof, ~hich 1~ of lthe ~ame ~2e and configur~tion ~ the 610t ~0 ~n plate 84. The sl~t 104 in di6c 1û2 is po~itioned to overlie the ~lot 9Q.
A plurality of linear indicia 106 are ~cribed or other~ise marked on the f~ce of the di c 102 ~djacent the 81Ot 10~, ~6 $ho~n in ~IG~ 11. In ~ddition, plurality of ~nqul~r ~ndici~ lOB are ~l~o 6cribed or other~e ~arked upon the fac~ oP di~c 102 ~sbout its circumferenceO A~ ~hown ~n ~IG. ll ~ the~e ~nyular lndic~a 10~ ~ay take the orm of ~ clock di~l.
Bowe~reF, other lndic:la, such a~ degree ~ndic~, could o be u~ed. An ~Irrow ~r other marklrlg 110 ~
~cribed or otherwi~e imprinted upon the end of the pin 92 o the deflector 88 e~hich, ln cooperation ~ith ~he an~ul~r indisi~, ~re~ent6 a ~ uial ind$c~tlon o the degree of eccentric rot~'cion of the de~lector 8B.
The l~ne~r lndici~ 106 present an lndlcaltion of the 5 degree or ~ount of lirlear ~dgu~tment of the pin 92 and ~t~ de~lector ~8 in the ~lot 90 of pl~e ~4~
By sray of e~mple, the de1ector 88 ~nay be ~dju~ted at the f~ctory prior to the deli~ery of the pneumatic ~preader o~ the pre~ellt inven~ ion 1D order lo to obtairl ~n equal ~Inifor~ di$trlbution of the ~low of ~a$eri~1~ through the ~ever~l opening6 ln pl~te 84 and, thereby, tbrough the ~econd ~onduit~ IB0 and ~heir refipectave ~njec~or~ 68O On~e t~ dju6tment h~s been 3~de, tbe three di~en~iorlal defl2ctor 88 a~ay 15 ~e los~ked in plas~e by ~he lock nut 94 0 ~s shown iLn PIG, 11 alnd the linear and eccentric ~dju~tment ~
~hown by the indicia ~n the di~c 10~ y Ibe re~orded ~or that a$sembly. If during operatiorl o t21e ~preader or due to re~dju~tment in the ield o~ the 20 fl~w di~;tributor by the oper~tor, the flow di~t~ibutor ~nove~ out o ~djustraent~ the de~ree to which it ha~ moved out of ~dju~tment may be readily determined by reference to the recorded factory adju~tment ~etting~ ~and re-adju~tment may be quickly 2 5 D cc ompl i ~hed ~
~ lthough it i6 bel~eved that the operation of the pneumatic 8preader and flo~ di~tributor of the pre6ent invent~on ~ill be clear to tho~e ~k~lled in the ~rt fro~ the foregoing description7 ~ brief 30 àe~crip~ion of operation ~ill follow., To ~ommence operatiorl~ the blower 3B ~6 energi2ed together wilth the conveyor belt 1~. The a~oving cQnveyor belt will convey the ~aterials to be ~pre~d f rom the ~opper 1~ of the Yehlcle 10 a~: a controlled r~te ~nd di~charge ~he ~ater~al13 ~1, a~
E;ho~n ~n ~IG. ~, in~o tlle ~a~ter~l di~ltributio~
ch~mber 18. The~e ~terials P~ill be eql~lly div~ded 5 by t~e p~rtition ~ 30 between co~partment~
~nd 1: of the ssJa erlRl digtribut~on chamber lB, a~
sho~n ~n F~G~ . 3 ~nd 5 ~ and the ~ter~
to~rd the bottom of lthege re~pective co~part~entl3.
Air pa~e~ from the blower through lthe ~1~ r 10 di~tribution conduit ~2~ the ~ngled ~ir con~uit~ 44, and into each ~ide of tbe ~ir plllenum ~8. The ~ir in the a~ r plenulD 48 ~ill ~l~o be eqll~lly d~ ~clharged through the re~pect1v2 air inlet~ 50 islto the ib~tto~
of the ~ater~al di. ~r~bution chamber 18. Be~use t~e 15 ~ir ~nlet6 50 ~re necked down toward ~hei r discharge end~, a~ ~ho~n in FIGSo 3 ~nd 4, the ~elocaty of th~
~ir ~ill l~crea~e to cre~te ~ ~entur~ efec~ ln the ~pa~e 5~ of each of the compart~ent~ A, B ~nd C in the ~aterial d~tribution ~ er lB. Thi~ ~enturi 20 e~ec~ ill propel the ~ateri~ls 1~ in the ~pace S~
~nto the re~pectlve ~ateri~l olltl~t6 52.
~ rom the ~aterial outlet~ 52, the ga~ ~nd material~ will flQw through the re~pective fir~t material flow conduit~ 56 to the rigid conduit 25 ection 76 of each of the conduit and i ts 1ared portion 78. The flow pa~ing through the fir~t conduit ~nd ~t~ 1ared portion 78 ~ill be di~'cributed equ~lly uniformly lthrou~h e~c~ of the ~everal opening~ 86 in the plate 8~l of the flow ~i~tr~butor 30 82 due to the ~dju6tment of the three dimen~onal deflector 88 ~nd the ~dditional two di~ensional pl~te ~6 t lf ~t i~ p~e~ent. Once di6tr1buted uniformly to ~acll of the opening~, the flow of ~ateri~ ill pa~
~,f~ t~
through the ~econd ~ateri~l flow ~on~uitæ 80 to e~ch of the ~n~ectors ~8 ~here the ~t~rials v~l~ be unlfor~ly in~ect~d into the open~ngs ~l~t 13l th~
by the dliLBC6 6d ~Ind chisel bl~e~ 66 of l~he tool bar 5 ~pplicator 60~
It ~ e 6een that al~houyh the three di~en~i~nal sol~d ~haped deflector 88 ha6 been shown a~ Ibeinq ~ubst2nti~11y conic~ nay llot be e~actly conic~l. Indeed, the ~e~ ctor 88 ~ho~n in 10 the drawing~ ~ not e~ctly conic~ loreover, other three dimen6ion~1 ~olid ~hape~, e.g. lhemi~p~eric~l shape~, ~ay be operable depending up~n the di~t~nce ~t ~hich the openings 86 l~rc ~paced fro~ the cen~er o~ the pl~te 84 ~ the nature of the Dateri~læ and 15 their flow r~te. I40reover, t~e deflector ~ay ~as~u~e other three di~en~ion~l ~h~pe~ d~pending upon the ~hape o~ the plate ~4, ~uch a~ ~here the plate elliptical or some ~hape other than circular.
It ~ill also be ~een th~t the prine~ple~ of ~ the present inYention ~nay be equ~lly ~ppl~c~ble to the ~preadin~ o~ aterial~ other than 6~1id6, ~uch liql~id~, and are ~l~o ~pplicable to u~e with applicator~ other than t~ol bar Applicator6, ~l~ch a~
broadca~t applicat~r~. The pre~ent inYention ha~
25 been described ~ith reference t~ a to~l b~r g~pplicator herein only f~r Rurp~e~ of frame of reference .
~ inally, it ~ill also be underfitood tha~
the embodi~ent~ OI tlle pre~ent inYention which have 30 - been de~cribed ~re ~erely ~llu~trat~ve of ~n applicat~on of the principle~ of the invention.
~umerou~ mod~ fi~at~on~ ~aay be ~aade by tho~e ~killed iLn the ~rt without departin~ f rom the 6pi rit and scope of 8:he invention.
Claims
The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows:
1. A pneumatic spreader for the distribution of materials to the ground comprising:
a distribution chamber;
material inlet means for introducing the materials to be spread into said distribution chamber;
gas inlet means for introducing gas into said distribution chamber;
outlet means in said distribution chamber for discharging the materials and the gas from said distribution chamber, said gas inlet means and said outlet means being constructed and arranged to define a venturi which draws the materials from the distribution chamber and propels the materials through said outlet means;
a first conduit coupled with said outlet means for receiving the materials and the gas discharged from said outlet means;
a plurality of second conduits joined to and communicating with said first conduit for receiving the materials and gas therefrom;
discharge means on each of said second conduits for discharging said materials from said second conduits to the ground;
flow distributor means adjacent the juncture of said first and second conduits for substantially equally dividing the materials in said first conduit between said second conduits, whereby uniform amounts of said materials are discharged to the ground from each of said discharge means, said flow distributor including a deflector in said first conduit; and mounting means for mounting said deflector to move relative to said second conduits adjacent the juncture of said second conduits with said first conduit and closer to ones of said second conduits than other of said second conduits.
2. The pneumatic spreader of claim 1, wherein said flow distributor means comprises a substantially planar plate having a plurality of openings therethrough each communicating with each of said second conduits, each of said openings being positioned in spaced relationship to the center of said plate, and a three dimensional solid shaped deflector adjacent the center of the plate for deflecting the materials passing through said first conduit to the plurality of second conduits.
3. The pneumatic spreader of claim 2, wherein said mounting means mounts said deflector to move at least one of eccentrically and linearly relative to the center of said plate.
4. The pneumatic spreader of claim 3, wherein said mounting means mounts said deflector to move both eccentrically and linearly relative to the center of said plate.
5. The pneumatic spreader of claim 2, wherein said solid shaped deflector includes a base, and said mounting means comprises and elongate slot adjacent the center of said plate and a pin extending from a location spaced from the center of said base of said deflector, and pin being received in said slot and movable along the length of said slot and also being rotatable in said slot.
6. The pneumatic spreader of claim 2, including a second plate between said planar plate and said deflector, said second plate being movable to cover at least a portion of some of said openings.
7. The pneumatic spreader of claim 5, including a second plate between said planar plate and said deflector, said second plate also having and elongate slot therein, said pin of said deflector being received and rotatable in both of said slots, such that said second plate is movable both linearly and rotatably to cover at least a portion of some of said openings and said deflector is also movable both linearly and rotatably.
8. The pneumatic spreader of claim 1, wherein said materials are particulate solids and said material inlet means comprises means for conveying said solids to said distribution chamber.
9. The pneumatic spreader of claim 1, wherein said discharge means comprises injection means at the distal end of each of said second conduits for injection the materials into the soil.
10. The pneumatic spreader of claim 8, wherein said discharge means comprises injection means at the distal end of each of said second conduits for injecting the solids in the soil.
11. The pneumatic spreader of claim 1, including reduced diameter flow shaping means in said first conduit and upstream of said flow distributor means for shaping the flow of said materials prior to the materials reaching said flow distributor means.
13. The pneumatic spreader of claim 1, including partition means in said distribution chamber dividing the chamber into a plurality of compartments into which said material inlet means introduces the material to be spread, each of said compartments having one of said gas inlet means, outlet means, first conduit, second conduits and flow distribution means communicating therewith.
14. The pneumatic spreader of claim 2, including partition means in said distribution chamber dividing the chamber into a plurality of compartments into which said material inlet means introduces the material to be spread, each of said compartments having one of said gas inlet means, outlet means, first conduit, second conduits and flow distribution means communicating therewith.
15. The pneumatic spreader of claim 4, including partition means in said distribution chamber dividing the chamber into a plurality of compartments into which said material inlet means introduces the material to be spread, each of said compartments having one of said gas inlet means, outlet means, first conduit, second conduits and flow distribution means communicating therewith.
16. The pneumatic spreader of claim 10, including partition means in said distribution chamber dividing the chamber into a plurality of compartments into which said material inlet means introduces the material to be spread, each of said compartments having one of said gas inlet means, outlet means, first conduit, second conduits and flow distribution means communicating therewith.
17. The pneumatic spreader of claim 2, wherein said planar plate is substantially circular and each of said opening is positioned radially about the center of said plate, and said three dimensional solid shaped deflector is substantially conical in shape.
18. The pneumatic spreader of claim 5, wherein said planar plate is substantially circular and each of said openings is positioned radially about the center of said plate; and said three dimensional solid shaped deflector is substantially conical in shape.
1. A pneumatic spreader for the distribution of materials to the ground comprising:
a distribution chamber;
material inlet means for introducing the materials to be spread into said distribution chamber;
gas inlet means for introducing gas into said distribution chamber;
outlet means in said distribution chamber for discharging the materials and the gas from said distribution chamber, said gas inlet means and said outlet means being constructed and arranged to define a venturi which draws the materials from the distribution chamber and propels the materials through said outlet means;
a first conduit coupled with said outlet means for receiving the materials and the gas discharged from said outlet means;
a plurality of second conduits joined to and communicating with said first conduit for receiving the materials and gas therefrom;
discharge means on each of said second conduits for discharging said materials from said second conduits to the ground;
flow distributor means adjacent the juncture of said first and second conduits for substantially equally dividing the materials in said first conduit between said second conduits, whereby uniform amounts of said materials are discharged to the ground from each of said discharge means, said flow distributor including a deflector in said first conduit; and mounting means for mounting said deflector to move relative to said second conduits adjacent the juncture of said second conduits with said first conduit and closer to ones of said second conduits than other of said second conduits.
2. The pneumatic spreader of claim 1, wherein said flow distributor means comprises a substantially planar plate having a plurality of openings therethrough each communicating with each of said second conduits, each of said openings being positioned in spaced relationship to the center of said plate, and a three dimensional solid shaped deflector adjacent the center of the plate for deflecting the materials passing through said first conduit to the plurality of second conduits.
3. The pneumatic spreader of claim 2, wherein said mounting means mounts said deflector to move at least one of eccentrically and linearly relative to the center of said plate.
4. The pneumatic spreader of claim 3, wherein said mounting means mounts said deflector to move both eccentrically and linearly relative to the center of said plate.
5. The pneumatic spreader of claim 2, wherein said solid shaped deflector includes a base, and said mounting means comprises and elongate slot adjacent the center of said plate and a pin extending from a location spaced from the center of said base of said deflector, and pin being received in said slot and movable along the length of said slot and also being rotatable in said slot.
6. The pneumatic spreader of claim 2, including a second plate between said planar plate and said deflector, said second plate being movable to cover at least a portion of some of said openings.
7. The pneumatic spreader of claim 5, including a second plate between said planar plate and said deflector, said second plate also having and elongate slot therein, said pin of said deflector being received and rotatable in both of said slots, such that said second plate is movable both linearly and rotatably to cover at least a portion of some of said openings and said deflector is also movable both linearly and rotatably.
8. The pneumatic spreader of claim 1, wherein said materials are particulate solids and said material inlet means comprises means for conveying said solids to said distribution chamber.
9. The pneumatic spreader of claim 1, wherein said discharge means comprises injection means at the distal end of each of said second conduits for injection the materials into the soil.
10. The pneumatic spreader of claim 8, wherein said discharge means comprises injection means at the distal end of each of said second conduits for injecting the solids in the soil.
11. The pneumatic spreader of claim 1, including reduced diameter flow shaping means in said first conduit and upstream of said flow distributor means for shaping the flow of said materials prior to the materials reaching said flow distributor means.
13. The pneumatic spreader of claim 1, including partition means in said distribution chamber dividing the chamber into a plurality of compartments into which said material inlet means introduces the material to be spread, each of said compartments having one of said gas inlet means, outlet means, first conduit, second conduits and flow distribution means communicating therewith.
14. The pneumatic spreader of claim 2, including partition means in said distribution chamber dividing the chamber into a plurality of compartments into which said material inlet means introduces the material to be spread, each of said compartments having one of said gas inlet means, outlet means, first conduit, second conduits and flow distribution means communicating therewith.
15. The pneumatic spreader of claim 4, including partition means in said distribution chamber dividing the chamber into a plurality of compartments into which said material inlet means introduces the material to be spread, each of said compartments having one of said gas inlet means, outlet means, first conduit, second conduits and flow distribution means communicating therewith.
16. The pneumatic spreader of claim 10, including partition means in said distribution chamber dividing the chamber into a plurality of compartments into which said material inlet means introduces the material to be spread, each of said compartments having one of said gas inlet means, outlet means, first conduit, second conduits and flow distribution means communicating therewith.
17. The pneumatic spreader of claim 2, wherein said planar plate is substantially circular and each of said opening is positioned radially about the center of said plate, and said three dimensional solid shaped deflector is substantially conical in shape.
18. The pneumatic spreader of claim 5, wherein said planar plate is substantially circular and each of said openings is positioned radially about the center of said plate; and said three dimensional solid shaped deflector is substantially conical in shape.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US06/590,707 US4562968A (en) | 1984-03-19 | 1984-03-19 | Pneumatic spreader |
| US590,707 | 1984-03-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1247940A true CA1247940A (en) | 1989-01-03 |
Family
ID=24363351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000476544A Expired CA1247940A (en) | 1984-03-19 | 1985-03-14 | Pneumatic spreader |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US4562968A (en) |
| EP (1) | EP0168906A3 (en) |
| AU (1) | AU572976B2 (en) |
| BR (1) | BR8501193A (en) |
| CA (1) | CA1247940A (en) |
| IL (1) | IL74748A (en) |
| ZA (1) | ZA851820B (en) |
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-
1984
- 1984-03-19 US US06/590,707 patent/US4562968A/en not_active Expired - Fee Related
-
1985
- 1985-03-11 ZA ZA851820A patent/ZA851820B/en unknown
- 1985-03-14 CA CA000476544A patent/CA1247940A/en not_active Expired
- 1985-03-18 BR BR8501193A patent/BR8501193A/en unknown
- 1985-03-18 EP EP85301852A patent/EP0168906A3/en not_active Ceased
- 1985-03-19 AU AU40112/85A patent/AU572976B2/en not_active Ceased
- 1985-03-28 IL IL74748A patent/IL74748A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| EP0168906A2 (en) | 1986-01-22 |
| AU4011285A (en) | 1985-09-26 |
| ZA851820B (en) | 1985-10-30 |
| AU572976B2 (en) | 1988-05-19 |
| IL74748A (en) | 1991-06-30 |
| EP0168906A3 (en) | 1986-07-02 |
| US4562968A (en) | 1986-01-07 |
| IL74748A0 (en) | 1985-06-30 |
| BR8501193A (en) | 1985-11-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry | ||
| MKEX | Expiry |
Effective date: 20060103 |