Improvement in wood-planing machines
US RE1190 E
Description (OCR text may contain errors)
` 'chinos vil): accurate] 4isiin V"UrJrTED s STATES PATENT Ormel-3,;
HENRY D. STOVER, OF NEV YORK, N. Y'.
Specication forming part of Letters Patent N c. 30,993, dated December I8,
May 2l. 1861.
1360;' Renew No. l, i collated To all whom t may concern:
Be it known that I, HENRY D. Srovne, of New York, in tbc county of New York and State of NewYork, haveivented certain new and useful improvements in planing-may and nicely dressing dimension lumber and boards; and I hereby declare that the following specification, Ain connection With the accompanying drawings and letters of reference marked thereon, constitute a lucid7 clear, and exact description of the construction and ese' oi' the same.
In referring to the said drawings, Figure l denotes a plan or top'view; Fig. 2, a side ele ration; Fig. a centra-land vertical section on line A l, Fig. i 5 Fig..4, a frontend elevation; 'Fig'. 5, a back end elevation; Figa-6', aA transverse and vertical section on line C D of Fig. l, showing parts beyond toward front end et' machine. l
The nature of my invention consists in the arrangement ot the two screWsE, i'orelcvatingq lowering', and retaining the planining-cylinder in pbsition parallel with the face of the platat an angle varying from five degrees to fortyfive degrees from the plane or face surface ot' the cuttin;, blade`s,v as the material bein g; planed may require; also, in suspending the driveshaft S2 in moyable journal-boxes, and so connecting them to the planing-cylinder by rods or otherwise that the axis ot' the planing-cylinder Will'always be equidistant from veach other, to retain an equal uniform'l tension to the driving-belts at whatever elevation the planing-cylinder may be placed; also, in 'driving the platen back and forth by means ot' friction slide and wheel and a toothed rack and pinion; also, in starting, stopping, and reversing thefmovement ot platen by means of screws, arranged substantially as described, for forcibly engaging the friction-Wheel and its friction-slide, which is attached to the platen, and engaging or' gearing thepinion with its rack, which is also connected to the platen, in order to easily and gradually start the platen and a heavy piece into motion and to quickly start the pla-tten and light pieces into motion, as may be required; also, in the arrangement of the cross-head ten, substantinllyas described, when combined with the platen B, operated movably to carry the lumber which is being dressed by the planing-cutters or stationary as a bedpicce over and nponwhich the lumber is moved by feeding-rollers tothe cutting-blades, in order that the entireJ cutting-cylinder may bei reniiily, easily, and positively elevated and lowered and positioned. as desired, and'at all times fixed for use in snob position parallelto the face of the platen, ready for correctly dressing the surface of the lumber at Whatever elevation the planin ,fg-cylinder may be placed; also, in incasing,` 'the raising and lowering screws, which carry the cutting cylinder, Within the npriglits in which they are placed, or part to which they are attached, in order to eilectnally exclude dust, dirt, and shavings also, in providing the planing-cylinder with sectional cnttingblades, cach imparting,` or performing a shearing or drawing stroke or out, essentially as described, to eii'ecta nearly equal ont during' the entire revolution of the planing-cylinder, so as to be easily removed, sharpened, nd Ireset for use; also, in forin- :ing that on ofthe planing-cylinder which y back of the edges and in contact Wn the surface of the cutting-blades which carries the plnning-vcylinder, with the i uprights on which it is raised, lowered, and Voperated by adjustable gib-slides, substantially as described, when combined with platen which may be operated movably or as a stationary bed for the lumber; also, in pivoting; and giving a vertical adj nstment to the journalboX, which carries the operating end ofthe friction drive roll shaft, so that it may freely swing); and revolve when its friction drive-roll is engaged or disengaged from its frictionslide on the platten, and at the same time allow it to vertically adjust itsclt' by means-01" the vertical movil-bility of' the journal-box for causing the friction drive-roll to correctly en gage with its slide for movement of platen; also, in providing the platen, which is operated both inovably and stationaril y, with several holdingdogs, operated independently ot each other by cam or otherwise 1o hold several distinct and separate pieces while being,` dressed; also, in providing a condnctory, made of an suitable material, opcnnear the planing cylinder and 4at such other place as may be desirefhwhen so combined with the planing-cylinder that its velocity and thecurrent of air thereby set in lmotion will remove ;he ditst and shavings-away fromithe machine through this conductory to such receptacle or place r s may be desired; also, .in the arrangement ot' an elastic surfaced pressure roll, with an adjustable rigid pressure-roll and adjusta` 4ble scraper attached to and carried by crosshead for planing-cylinder by means of stands or otherwise, so that either the rigid roll or scraper can be used with the elastic roll at pleasure or as may be required, when combined with the planing-cylinder; also, in so constructing the ways or slides of the bedpicce' or platen so that the platen may have a longer movement and not trip orA become unsteady when more than half its weight projects over the end of the bedpiece, thereby increasing the capacity of the machine so as t) 1 lane longer pieces than could be done by planin g-machines with the same lengthof bed and provided with the ways heretofore known;
also, in the uprights, which carry the elevating screws for raising, lowering, and positioning the planingcylinder accurately, with`the top face of the platen, in combination with4 bedfpiece, which carries the platen, for dressing 'the lumber, all essentially as hereinafter seen.
`To enable persons skilled in theart to which myi'nvention appertains to constructand carry out the same, l will describe it asfollows I construct a bed-piece (seen at'A), to which a platen, B, is fitted to move back and forth therein in Vadjustable gib-slides A? and A3.
By this means great durability and accuracy o 'movenn ntare had for the platten, and atthe s me time it is eft'ectually prevented from tipping or trembling when nearly on a. balance,
as is well known in other planingmachines cured to the bed A, and at their upper ends they are secured to each other by cross-bar F. These uprights have a pocket or cavity, D, formed therein and t0 be inclosed by covers D3 to exclude dust orshavings. In each of these cavities a screw E is positioned to freely turn in universal boxes, formed by shaping the -hub of the gears H, which are attached to the upper end of each screw E of` a suitable oval or curve, which conjoins with and rests universally in a. corresponding cavity formed in the plates G, which are attached to and rest upon cross-bar E. The screws E are` so arranged as to both be turned byone shaft I, having abalance-wheeLK, and two bevel-gears thereon, which 'gear into similar bevel-gears, H, on screws E. The shaft I being suspended to revolve in suitable stands, V3, which are secured. to top of cross-bar F, as seen in the drawings. I construct a cross head (seen atA M) and attach it so as to slide freely, yet snugly, up and down ony the face kor front of uprights (l by'tl means of the adjustable gibslides N. Thejournal-boxes B3 are secured to the Vfront .of cross-head M. to receiue`a11d carry vthe cutting-cylinder 0, which is constructed-aud provided with four or more srctional cutting-blades, P, fitted and secured to surfaces so formed on cylinder 0, and not paralle] to its axis of motion, as to impart a shearing or Adrawing cut. to the material. These blades P extend for a section or a little Amore than half thelength of the cutting-cylinder t'. e., their inner ends overlaptomaketheiinish or cut complete or continuous the entire length of the planing-cylinder. These short sectional cutters are a saving in'construetion and easily removed, sharpened, and reset. of the cutting'cylinderO which is immediately back of the cutting-blades P may be formed any suitable angle from tive degreesto iort'y-4 five degrees, (seen at a. b 0,) to give a good finish yto hard or soft wood, the number ofdegrecs-of angle to this portion of the cylinder being more than twenty-'five degrees for hard and less than twenty-live degrees for soft wood. On each end of the lplaning-cylinder shaft is secured a suitable pulley, (seen at Q,) to be driven. by belts R from drive-pulley S, fitted oh shaft S2,wl1ich revolvein'movable jourital- *boxes T, which is so connected by rods U to cross-head M and planing-cylinder U that when the same is raised or lowered to or from the platen to dress thick or thin lumber the centers of drive-pulleys S and driven pul-v leys Q always're'lnainat the'same distanceito always retain vthe belt at the same uniform tension, the importance and great advantage', of which will be readily seen. The cross-head"- M and the planingcylinder are both raised and lowered and positioned, and at all times held in position by screws E univer/sally by means Vof stands V, secured to 'cross-head, these stands being divided into two parts where theyc'lasp the screws E, and between, these divided parts a universal nut, (seen at W), through which the screws E pass and to whichtheyarethreaded. Thesenutsaretted to freely turn universally, but not to revolve with the'screws E, to impart an ease of motion or required adjustment to cross-head M and planing-cylinder U. y
Between the nuts W and inner surface of cavity D, in uprights G, `a. sliding shield, w, is litted to stands V, which etfectually cover the 'slots Y, through which ther stands V move,
and at whatever elevation the same is placed,
so as to exclude dust and shavings from the Thefeedin g device is constructed as Follows: o
To the under side of the platen Ba friction'- slide, A ,is secured,and also a toothed rack, B.
Tha-t portion .reetion reverse ,to that of -for surfacing boards, .-,movedvback out of the to forni the bed under stand with gib-slides bed A, and ou which the feed-rolls,
l of both the dimension and l contained `in one machine, 'and by simply slid- Between these are'positioneda'toothed pinion', (J, which tits into rack B', and a frictionwheel, D', which fits intoy friction slide A. This pinion and friction-wheel are secured to a perpendicular shaft, E','whieh is .moved or Vturned at the required speed by .connecting belt with any turning shaft"otmymachine,
, and suspended in journallboxesfl, securedl to A support Gf at its lower or under side and vnear to its upper end by jolrrnal-box H/secured to sliding bar l" by pivot'K, so as to be b'oth "ertically adjustable, and at' the same time turn to freely allo/w the shaft E to conform to all the requiredmovements givenitv for the feed.
On the oppositeside oi br I issecured the nut J by pivot-L for vertical adjustment and to freelyturn.l Through thisnntJ'passesascrew, `M, which is suspended to' freely turn in bearings N', securedA to bed A. At the end of screw-arbor M is secured a balance-wheel, O. By tnrningthis wheel 0' andscrewM in one direction the pinion Gis geared with rack B" tofeed the platen one way, the screw Ll the' other frctionwhecl D are moved 'to force this wheel-into and vtirmly against groove Q of slide A. Then by the revolving of this friction-Wheel the platen B isv driven ,and in dipinion U', which will be readily understood. Suitable ways or jgrooves are formed transx'iersel y through track and by. turning lor way, as seen at R", to/which aslide is fitted which carries the feed-rolls S and T,")designed when 'the pinten B is way of these rolls and theplaning-cylinder. may be attached to or any other method f sliding these rolls into and out of position may be adopted if desired. Thus all the advantages ing the feed-rolls in to position lor out /of position they are ready for use or securelyplaced out of the way, as may be desired. The back (logging-bar for'holding the lumberis fitted to tcp of platen B, and drawn down to its top whenever theilumber is secured for dressing by the inclined slots V and pins a. This bar U has several projecting-claws, b', to receive either several distinct strips for dressing at the same time or one wide board, as may be desired. The frontdogging-barW is secured to platen similar to bar U Between it and top face of platen are several sliding dogs or claws, l/,eorresponding to claws b', and movedby cam-levers'X .with eccentric slots d', pins f', and'pivoted bv screws c', to firmly secure the pieces'of lumber between-hein for .being `I constrneta cond uctory, (seenat ASl) and so connect it tocross-head M as to vconduct the dust and s havings away from the planing-cylander throughA this conductory by the force or current of air put in motion by the velocity imparted to it,
way the bar l andy to position and remove 4 surface pla-ners are face of board or piece being planed. Back of roll Gt is a rigid revolving roll, D, suspended Vin adjustable swinging stands E, which are attached lby screws H4 to and carried byl stands B4. There is also a scraper or holder, F, fixed to thefront end of adjustable stand E4, which presses the board or piece firmly to the platen quite close to the cutting-blades,
of the planing-cylinder, to receive a beautiful finish'. The arms of stands E* may be swung and secured byscrcws Il* to bring either the -scraperEl or rolll)4 upon the face of the iinished piece, as` may be desired, to plane straight and out of wind. I l
' Having thus described my invention, I will state my claims as follows:
l. The arrangement of the two screws E for elevating, lowering, and retaining the planingcylinder 0 in position parallel with the face of the platen, substantially as' de-v scribed, when combined with the platen B, operated movably to carry the lumber Vwhich isbeing dressed by the planing-cutters, or
stationary as a bed-piece over'and uponV which the lumber is moved by feeding-rollers to the cutting-blades, in order that the entire cutting-cylinder may be readily, easily,and positively elevated or lowered and positioned as desired, and at all times fixed for use'in suchI position parallel tothe face-of the platemrcady for correctly dressing the surface of the lumberat whatever elevation the planingcylinder may be placed.
Incasing the raising and lowering screws E within the uprights (l, in which they operate, in order to eifectnally .exclude dust, dirt, and shavings.
3. Providing theplaning-cylinder 0 with.4 sectional cutting-blades P,'each imparting or performing a;.-hea1'ing or drawing stroke or cut, essentially as described,l to effect a nearly equal cut during the entire revolution of the .planing-cylinder, and moved, sharpened, and reset for use.
4. Forming thatportiouof the planing-cylinder 0 which is immediately back of the edges andin contact with the face surface of the cutting blades at 1an angle varyingv from ve degrees to fort y-tve degrees from the plane or face surface of the cutting-blades, as 'the material being planed may require.
5. suspending thedrivc-shat't S2 in movable journal-boxes T, and 'so' connecting them to 'the planing cylinder() by rods `U or other wise that theaxis of the,driveshaft andv the axisof the planing-cylinder will always be equidistant from each' other, to retain an equal uniform tensonof the vdriving-beltsat whatever elevation the 'planing-cylinder `may be placed.
and by means of the several j 6. y Driving the platen Bback and forth by so as to be-ieasily remeans of tue rrietion `slide A'. and frictionwheel D' and the rack B' and pinion C', substantially as described.
7. Starting, stopping,` and reversing the rmovement of platen B by means of screw M,
arranged, substantially as described, for forcibly engaging the friction-wheel D with the` friction-slide A', which is attached to the platen, or engaging or gearing the pinion C' with the rack B', which risalso connected to the platen, in Order to easily and gradually' which carries the planing-cylinder 0, with thc nprights Cv by adjustable gib-slides N, substantallyas described, when combined with platen B, which may be operated movably lor as a stationary bed for the lumber. y
9. Pivotingand giving a vertical adjustment by slot G* and inK or otherwise to the journal-box H', which carries the operating end of the friction drive-roll shaft, so'. that it may freely swing and revolve when its vfriction drive roll is engaged or disengaged from its friction slide A on the platen, and at 4the same time allow it tO vertically adjust itself by means of the vertical movabilty of the journal-box' for causing the friction drive-roll D' to correctly engage' with its slide A', for the purpose `set forth.
10. Providing the platen B, which is operated both movably and stationarily,'with several holdin g-dogs, C', operated independently of each Otherby cams X' or otherwise, tohold several distinct and separate pieces while being dressed.
11. Providing the feed-roll frame with slides so adjusted to the bed-piece of the machine that the feed-rolls may be readily slid or positioned therein for use and removrd therefrom.
'12. suspending, raising, and lowering the cross-head, which carries the pl.ningcylin der, by universal globular bearin gs, which are material, Open near the planing-cylinder and at such other place as may be desired, when so 'combined with the planing-cylinder that its velocity Vand the current of air thereby set in motion will remove the dust and shavings away from themachinethrough this conductor to such receptacle or place as may be desired.
14. The arrangement of the elastic surfaced pressure-roll C, with the adjustable rigid pressure-'roll'D and adjustable scraper F4, attached to and carried by the cross-head M by means of stands B Or otherwise, lso that either the rigid roll or scrapercan be used with the elastic roll C at pleasure, or as may be required, essentially as described, when combined with theV planing-cylinder, for the purpose set forth.
1 15. SO constructing theways or slides of the bed-piece A and of ithe platen B, essentially as seen at A" and A, that the platen may have a longer movement and not tip or become unsteady when more than half .its
v weight projects over the end of the bed-piece, lthereby increasing the capacity ofthe machine so as to plane longer piecesjthan could be done by planing-machines with the saine length Of bed and provided with the waysv vating-screws E, for raising, lowering, and pO- sitioning the planing cylinder accurately with v thetop face of the platen, essentially as described, when combined with the bed-piece, which carries the platen, for dressing the lum ber, essentially as set forth. l
HENRY D. STOVER. Witnesses:
GEO. W. LORD, l G. H. STOVER.