US 1342450 A
Description (OCR text may contain errors)
.s.f\A. Kos AND w. YAEGER.
GLAZING MACHINE. APPucATlo'N 'man JAN. ao. 1919.
Patented June 8, 1920.
UNITED STA-ras OFFICE.
STEPHEN A. 'xosr AND WILLIAM YAEe'in, Orl-ayuno, NEW YORK, AssIeNORs-ao THE QUALITY BRANDS COMPANY, or cLnvaLANn, OHIO, A CORPORATION OF OHIO.
. l Specification of Letters Patent. Patented J une 8, 1920.
` Application led January 30, 1919. Serial No. 273,988.
constructed in the form of a tapering fairest' To all whom t may concern.'
nel and detachably connected at itsla-rge Be it known that we, STEriIEN A. KosT 'fand WILLIAM YAEGER, citizens ofthe United States, and residents of Buialo, in thel county of Erieand iState of New York, have linvented new and useful Improvements in Glazing-Machines, of which the following is a specification.
This invention relates to a glazing machine which is designed to apply a liquid glazing cement or paste to the joints between panes` of glass and the sashes or frames of green houses on which the same are ,mounted for the purpose of producing a ti' ht joint between the same.n
. achines for this purpose, as heretofore constructed, required the use of both hands for their operation which made it diiicult to apply the glazing material to the frames or sashes and also reduced the amount of work *f which a man can do particularly when operating upon the roof of a green house` which necessitated holding on to stationary parts in order to enable the operator to keep his placelwhile applying the glazing material. f
It is the object of this invention to provide aglazing machine which is automatic in its operation of discharging the material from the supply magazine -and'which can be controlled by the use of a single hand for applying the glazing material, leaving the other hand free to hold on to the support for insuring the safety of the operator.
In the accompanying drawings: Figure 1 is a longitudinal section of our .improved in' the form of a cylinder, as shown Figs.
glazing machine. Fig. 2 is a side elevation of the same. Figs. 3 and 4 are cross sections taken on the correspondingly num-v bered lines in Fig. 1. Fig. 5 isa cross section taken online 5 5, Fig. 2.
Similarcharacters of 'reference refer to like parts throughout the'several views. i
'6 represents the magazine, tank or barrel of the glazing machine which is adapted to receive in, its front end the charge f glazing material which is to. be applied vto the frames or sashes and the panes tif-.ga greenhouse o r similar` structure, this maga- :zine being preferably." vconstructed l.ofnietal 1, 2 and- 4. j
A fits front end this barrel iis'. provided with a cap or head 7 which ispreferably the valvebody will permit thefglazing ma- .vided with an oblong valve stem 18 "w glazing material to the sash and panes the 'on to the sash or other availableend with the front end of the barrel by means of a screw joint 8 as shown in Fig. `1, or by any other suitable means, sothat`upon removing this front cap a charge of glazing material may be introduced into thebarrel preparatory to depositing the same where required. The discharge of this material from the barrel is controlled by means of a valve which may be variously constructed but in the form shown in the drawings, as an example, the same comprises a body 9 having a passage 10 therethrough the 'inlet end of which is connected lby means ofga screw joint with the outlet of the funnel-v shaped cap 7 while the discharge end of this passage is connected with a nozzlelll by which the glazing material is deposited# form engages with a correspondingly shaped 7- 5 valve seat 12 which intersectsv the passage4=l provided with a diametri'calf port or passage? 14 which upon turning the plug so that this 'j port is arranged crosswiseof the'va'lvejbody, as shown inFigs. lfand 5, willclozse the Valve and prevent the discharge offglazing material but which upon -fbeing .turned solj;v that this port registers with the-passage of terial to escape from the supplyfbarrel or magazine This valve plug 'is lieldtightly against `its seat by means of a screw shank 16 arranged at its small end, a washer 15 applied to this screw shank and bearing-"350 against the adjacent end of the` valve bodyand a screw nut 17 applied to'this vscrew shank and engaging with the outerV the washer, as shown in Fig. 5. At posite or large end the valve plug by the valve plug 'may be turnedl 1t opened or closed position. -1-5. When using this devlce in applyi the'.
operator grasps the barrel by one-handfand in order to leave the other hand free to'hold 5' l .supirervqf the building, an operating mechanism is] provided for'the valve which can be rcon- .rolled linger of thesame hadwlhichf` voldsfth'e supply barrel. vv`'lfhe valve perat ing mechanism having this capacity may fas be' variously constructed but that which is fsl'civn in the drawings is suitable and.l .Qly ing to its simplicity of construction 'it' is preferred. As shown in Figs. 2 and5 this ,5 preferred form of valve'operating mechanism comprises a segmental gear 19 which is secured'to the valve stem. by providing the hub of this gear with an oblong opening which receives the stem 18 of the va1ve, and
through an opening in the stem adjacent to the outer side of the gear. Meshing with this gear segment is a longitudinally recip- 'rocating gear rack 22 guided on a bracket cap 7 and provided. with an outer longitudinal guide iiange 23 engaging with the outer longitudinal edge of the gear rack.
The gearrack is provided with a longitudi- 2o nal slot 24 which receives a retaining screw 25 'secured to the adjacent part of the supporting bracket, as shown in Figs. 2 vand 5. 26 represents a. longitudinal operating rod which is arranged lengthwise Von one -slde of the lower'barrel cap and connected at its frontend with. the rear end of the rack' v while its rear part is guided in a lug 29 projecting laterally from the front barrel cap and its rear end terminates in a finger piece or handle 27. 4Surrounding this operating rod is a helical spring 28 which bearsf atits front endagainst the rear end of the. gear rack while its rear end bears' against the guide lug 29. This spring when free constantly tends to move the gear rack for- Wardly Yand turn the gear segment and the valve plug in the direction for closing lthe valve by shifting the port of the ..p 1ug in eitherdirection whenthe latter is` 1 .opened or closed by engagement of the front 'and rear ends of the guide slot 24 with .the f screw 25 whichlatter operates as a stop for :this purpose.
one handen@ pull-ing with one finger of the discharge the glazing material from the cyl- '.mder "and Aalso direct .the discharge nozzle along the'v surface intended to receive the 'glazing material. The other-.hand ofthe "per t9r is therefore left to hold .on to able support for insuring-.his safety performing 'the 'glazin operation, ysgabling the o mrtg o 1 yand wit outlabilit of falla cotter` pin 20 or similar device 'passlng Awhich slides lengthwise therem and which 21 which, is preferably formed on the frontV valve plu out of register with the passage Vsame hand-E -bekwardly onv the handle 27 to b y means of a vscrew joint, as shown in the operator` 1s able to open 'the' valveand pressor screw 44Y which is work much preferably rearward iingerpressure'en'f'the. operating. the spring".2 6 automatically' mores `the 'rack forwardl'y'sef'asrto' c'lo'se the disj ge valve prevent theescape pf fu rther material. By vthis means the delivery of' material from the supply barrel may be "accurately controlled so that ynovv more material than necessary vis deposited, thereby avoiding waste and effecting greater economy in the cost of glazing'as com ared' with the methods heretofore employe The glazing material is discharged from .the supply'barrel by a plunger or piston may be variously constructedbutwhich in the form shown in the drawings' comprises a disk shaped body 30 of cork or similar material and two metal retaining disks 31, 32v applied to the front and rear 'sides of the '80 cork body and connected with each other by ymeans of a tubular hub of sleeve 33 passlng through corresponding openingsin the central parts of the cork and retaining disks and yconnected at its, lower end by means of 8'5 a screw joint withwthe front disk and provided at its rear end with an annular flange 34 bearing against the rear side of the rear disk, as shown'in Fig. 1;` i
Preparatory to filling. the 'front part of the supply barreliwithl glazing material the plunger or'piston is moved into its rearmost. position within the barrel, and vupon moving this plunger forwardly the material is discharged from. the barrel when the -valve is open. The means whereby the plunger is operated are so constructed that they operate to shift the plunger. forwaillfgw automatically when the valve vis ope .y These means in their preferred form comprise. a comparatively stiff helical evacuating spring 35 which is arranged within-the rear part of the supply barrel and 'engages its front end with the rear retainingdlSk f to which the foremost convolution of the spring is preferably secured b `means of a. clip .36 as shown in Fig. 1. he rear end *of this spring engages with a follower 37 which-1s movable lengthwise in the rear part of the barrel, the rearmost .convolu- 110 tion of this Aspring being preferably secured to the follower by means of a clip 38. At Bytakln'g .hold of the supply'barrel with is provided with an internally screwthreaded opening ,40 which receives a comtubular form. A connection-1s eiecte between the fronter inner Aend of'this compresser screw- 4and/the follower which is soconstructed that these Aparts are compelled to move together but.' the compressor screw is to independently ofthe follower. This con-iA nectlen in its preferred form, as shown in, Fig'. 1-, com rises an annular flange 41 arrangedl ont e inner end ogthe comp4 .su
referabl screw and bearing against the rear side of.
which preferably has the form of a wheell secured to the rear end of the compressor screw externally of the supply barrel andy forming practically a part of this screw. Upon turning the compressor screw in one direction or the other the follower is caused to move forwardly or backwardly within the pump. barrel.l 4
Extending lengthwise through the compressor screw, the follower, the evacuating' spring and the tubular hub of the piston is a retractings'crew 46 which is provided at its frontend with ahead 51 bearing against the front side of the front plunger disk while its rear end, which extends beyond the rear end of the compressor screw,v is provided with a handle 47 for turning the same. In rear of the compressor kscrew is arranged a screw nut which is adaptedl to be engaged with or'g disengaged from the external screw thread'A of the retracting screw which screw nutfis so mounted that the same is movable back and forth with the compressor screw 44 and the handle 45. Thisl screw nut in its preferred form is split into two sections 48, 48 which are adapted to engage with opposite sides of the thread of the 4retracting screw and are pivotally connected on one side with each other. and with the handle of the compressor screw by means of a pintle 49. The opposite ends ofthe screw vnut sections are adapted to be interlocked with each other while their internal thread sections are engaged with the thread of the retracted screw. This connection may be effected ina variety of ways that shown in the drawings being merely an example of one suitable -for this purpose and consisting of a screw nut sections-'are in engagement there` with so thatV this retractln screw moves rearwardly .relativelfit to t e compressor screw toge Iwith*thenplunger' and causes the evacuatiil spring to be compressed between thefol owe'r'V and the plunger. While the plunger lis in this position and the levacuating spring isf-flexed the operator removes the frontl capfrom the barrel and introduces a charge o glazing material into 'lie may employ one fin er of thehand 'and practically the entire charge of glazing 1 the latter after which the front' cap to- ',gether with the valve mechanism mounted thereon is reapplied to the barrel. The locking pin50 may, now be moved from the lscrew nut sections and thel latter are swung apart so that they are' disengagedA from thel threads of the' retracting screw. -This releases the retracting screw and the plunger and permits the latter tobe pushed forwardly by the evacuating spring which latterA is now free to operate if thev valve is open, vbut if at this time the valve is closed the pressure of the plun er against the glazing material will not e able tov discharge the same from the barrel. While in this condition the operator may take the barrel in one hand and pass the delivery nozzle over the surfaces intended to receive the glazing material and at the same time which grasps the'barrel or operating the handle of the valve operating mechanism for operating the valve so that thematerial will be discharged from the nozzle automatically. by the resilience of the evacuating spring. When the plunger has been movedforwardly to such an'extent that the tension of the evacuating l. spring has been exhausted and the plunger ,has not yet reached the front end of the barrel so that still a quantity of the glazing material is contained therein this spring can loe-again placed under tension for continuing its'automatic operation when the valve is opened by turning the compressor screw forwardly through the medium df the handle 45 whereby the follower is again advancedrelatively tov the plunger and the evacuating spring is again compressed between the latter and the fol- 105 lower, this position being indicated in Fig.
1. The automatic discharge of the glazing material from the barrel will ynow be resumed through the expansion of the evacuating sp'rin the instant that the valve is. 110 opened in t e same manner in which this was effected when the plunger and the -follower were in their rearmost position.
It will thus be apparent that the spring can by this means be repeatedly placed un- 115 der compression step by step from itsrearmost position in the barrel toward the front end of the 'same until` the plunger. has reached its foremost position in thebarrel\\gl 20 material has been discharged automatically from the barreLj e 4 Owing'ito thesimplicityzof construction Aof this glazing machine and.' the ease with 'f which the same mayglge operated by the use ofone hand of a peis'c'illdoingv the work, a much greater-amount of .glazing can be accomplishedwithin a given time than has been possible by the use fof devices hereto.-
fore used. and at the same time insuring the safetyy "of the operator and effecting' a con` -siderable economy in the'use of glazing material.
We claim as our invention: l; A glazingmachine comprising a barrel adapted to contain a charge of glazing -material and having an outlet at its front end, a plunger movable lengthwise in said barrel, alspring hearing against said plun-- ger and adapted to move the latter forwardly, means for putting said spring under tension and means for positively-return- `ing said plunger.
2. Aglazing machine comprising a barrel adapted to contain a charge of glazing material and having an outlet at its front.
end, and a head atits rear end which is provided with a screw thread opening, a plunger movable lengthwise in said barrel, a spring bearing at its front end against said plunger, a follower bearing against the rear end of said spring, and a compressor screw engaging.,with said follower and working n *in said threaded opening. Y l
3. A glazing machine comprising a barrel adapted to contain a charge of glazing material and having an outlet' at its front lend, and a head at its rear end which is provided with a screw thread opening, a 304 plunger movable lengthwise in said barrel, a' sprmg bearing at its front end against said plunger, a follower bearing against the Y rearend of said spring, a compressor screw working 1n sald opening and engaging with fio - plunger movable lengthwise in said barrel,
a spring bearing at its` front end against ceiving said retracting screw.
-5. A glazing machine comprising a barrel adapted to contain a charge of glazing material "and having an outlet at its front end and a head at its rear endwhich is provided with a screw thread opening, a plunger'mow able lengthwise in said barrel, a spring bear ing at the front end against said plunger, la follower bearing against the rear end of said spring, a hollow compressor screw which works in said opening and having La rotatable connection with said follower, a retracting screw arranged in the hollow screw and having "a rotatable connection with said plunger, and a screw nut mounted on saidhollow shaft and receiving said retracting screw. i n
6. A glazing machine comprising a barrel adapted to contain a charge of glazing material and having an outlet `at its front end, anda head at its-rear end which is provided with a screw thread opening, a plun-I ger movable lengthwise in said barrel, a spring bearing at its front end against said plunger, a follower bearing against the rear' end of said spring, a hollow compressor screw which works in said opening and is connected with said follower, "a retracting screw arranged within the hollow screw and connected with said plunger, and a screw nut mounted on said hollowserew and di-A vided into sectionsv which are adapted to be engaged with and disengaged from the threads of said retracting screw.
' .STEPHEN A. KOS-T.