US467899A - Machine - Google Patents

Description

(No Model.) l s sheets-sheen 1. J. H. REED.

WOOD WORKING MACHINE. No. 467,899. Patented Jan. 26, 1892.

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(No Model.) 3 sheets-sheet 2. J. E. REED.

Woon WORKING MACHINE'.

No. 467,899.. Patented Jan. 26, 1892.

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NITED STATES PATENT OFFICE.y

JAMES Il. REED, OF LYNN, MASSACHUSETTS, ASSIGNOR OF ONE-HALE TO JOHN MCLAY, OF SAME PLACE.

WOOD-WORKING MACHINE.

SPECIFICATION forming part of Letters Patent No. 467,899, dated January 26, 1892.

Application filed November 28, 1890. Serial No. 372,777. (No model.)

To @ZZ whom it may concern: panying drawings, and I will describe the Beit known that I, JAMES I-I. REED, of Lynn, same, having reference thereto.

county of Essex, State of Massachusetts, have A is the base of the machine.

invented certain new and useful Improve- B is a cylindrical upright which forms the Y 5 ments in lVood-iVorking Machines, of which main support of the machine and to which 55 the following is a specification, reference beauxiliary supports for the various parts of ing h-ad to the drawings accompanying and the mechanism are secured. forming a part hereof, in which- C is one of the auxiliarysupports, in which Figure l is a side elevation of 4my machine. the lower cutter-shaft is journaled and upon 1o Fig. 2 is a front elevation with the cutterwhich one end of the table D rests, the other 6o heads, the clamps, and the shafts in section. end thereof being supported by legs E. Fig. 3 is a plan view looking downwardly F is another auxiliary support, in which the from a point immediately above the upper shaft of the upper cutter-head is jourualed. cutter-head. Fig. tis a detail of the feed The machine is driven from a pulley g,

15 mechanism. Fig. 5 is a detail of the cam mounted on the horizontal shaft 7L, which is 65 which operates the movable clamp. I1`ig.6 is supported on uprightsj, set ou the base-piece a detail showing part of the feed-actuating A. A vertical shaft 7e, which is journaled in mechanism. bearings ou the projections Z, which are serThe machines at present in general use cured to the standard B, is connected with zo which employ revolving cutter-heads for the the shaft 7L by means of a beveled gear and 7o purpose of cutting from boards or planks disks pinion m n. The vertical shaft 7e is provided or circular forms, like barrel-heads, tub and with upper and lower belt-pulleys p q, ref pail bottoms, and the like, are so arranged spectively,from which the vertically-arranged that it is difficult or impossible to feed the cutter-head shafts 7c s are driven by belts,

2 5 stock easily to the machines, and mechanism which are not shown, and which pa-ss over 75 more or less complicated is required to take the pulleys r s on the upper and lower cutthe waste, as also the disks or circular forms ter-head shafts. IVhen a board is, cut, the which have been cut, away from the macutters must be given a vertical movement, chines. It is also necessary in these main order that the disk be severed from the chines, so far as known to me, for the best reboard or plank. It is also necessary that one 8o sults to glue, dowel, or otherwise secure the or both of the movable members of the clamp boards or planks together when a disk is to should have a similar movement and that the be cut of greater diameter than the width of said clamp should operate inside the path dea single board-that is to say, the boards or scribed by the cutters. It will be noted that 5 5 planks cannot, without securing them to- I have located the cutter-heads and clamp 8 5 gether, be laid side by side in the machine members in horizontal planes, which enables and the disk cut. This is due largely to the me to lay the boards fiat on the horizontal clamping mechanism and t-o the arrangement 'table D and feed them forward in this posiof the machines. tion to the cutters. In this way the stock, as

4o My invention has for its object to obviate also the waste and the disks when formed, 9o these difficulties and to producea wood-workare more readily and easily handled. The ing machine,bymeans of whichcircular forms, Vertical movements of the cutter-heads and as barrel-heads and the like, may be cuteasily the movable member of the clamp are oband speedily; and it consists in the details tained from the horizontal secondary shaft t,

45 of construction and arrangement hereinafter which is driven by means of the gears e w 95 set forth, and particularly pointed out in the (see Fig. 3) from the main shaft h. The claims which are appended hereto and made shaft t is mounted in uprights a', secured to a part hereof. the base-piece A, and is provided with disks I have shown my invention as embodied in b c', in which are cut cams which operate the 5o the best form now known to me in the accomvertical connecting-rods d e', respectively. 10o

The lower ends of the rods d e are secured to the yoke-shaped pieces m n', which are cut away centrally, Vas shown, Fig..5, the shaft t passing through the aperture, and which are provided with cam-rolls which travel in the cam-paths in the disks b c. The lower A ends of the rods d e are headed and are received in sockets a7 in the yokes m n', a spring 01,9 being placed in the socket underneath the head ns on the end of the rod, the rod passing through a tubular screw in the bore at the upper end of the yoke. By this means the movable clamp and the upper cutter, should they meet an obstacle in their downward movement, are prevented Vfrom injury, as the throw of the cam will be taken up by the springs in the sockets 0,7. The connecting-rods d e are each provided with a right andrleft hand adjusting-screw, as shown at p', and are pivoted at their upper ends to the levers f g', respectively. These levers are pivoted to an upright piece secured on top of the support F. (See Fig. 2.) The outer end of the lever g is connected by means of a slot-and-pin connection with the rod 7L', upon the lower end of which is secured the movable clamp member j. The rod h passes through an aperture lengthwise of the shaft 7c', to which the cutter-head is attached. The end of the lever f is secured by a similar slot-and-pin connection with the sleeve kssurroundin g the hollow shaft 7c between pulley?1 and ring k7, the pulley r being rigidly secured upon the shaft 7c. It will be clear that by means of this mechanism the upper cutter-head 't' and clamp 7" will be moved vertically in proportion to the throw of the cams b c. The lower clamp member or bed q does not require to have a vertical movement, and I prefer to make it rigid; but the lower cutter-head r requires to be moved vertically inv order to bevel the lower side of the disk, which is cut at the edges. The lower cutter-head is mounted on a hollow shaft s', upon which the pulley s is fast. This shaft s is arranged to move vertically, and'for thc purpose of moving it vertically I provide a sleeve 258, surrounding the shaft s betweenv pulley s and ring S9 on the shaft A. Lever t (see Fig. 2) has a forked end which engages with pins on the sleeve t8. This lever is pivoted to a lug on the support C, and is provided with a downwardly and forwardly projecting curved arm u', (see Fig. 1,) the lower end of which carries a roll.

which bears on the periphery of the camwheel v. It will be clear that as the cam 'u' revolves the cutter-head will be moved vertic'ally. tu', to the upper end of which is fastened the bed or lower clamp member q. end of the rod w is rigidly mounted in the curved yoke-shaped frame a2. On the end of the shaft t and beside the cam o is secured the feed actuating cam Z22, which co-operates with a roll c2, set on the end of the connection cl2, said connection being slotted, as

Inside the hollow shaft s is the rod The lower shown, Fig. 1, where the shaft t passes through it, the shaft serving to supportA the conn ection cl2 and hold it in place relatively to the actuating-cam b2. The other end of the connection cl2 is pivoted to a vertical lever e2, which is pivoted on a cross bar or rod extending between the legs E of the table. The upper end of the lever e2 is branched, as shown, Fig. l, and is provided with a toothed sector f2, which co-operates with a pinion g2, fast on a shaft h2,whichis journaled at either end in the legs or supports E. The shaft 7a2 is provided with a gear jz, (see Fig. 6,) which co-operates with a rack 7a2, which is fast to the horizontal rod o2, which is secured at either end in the sliding blocks m2. These blocks are each provided with a flange adapted to fit a slot or groove n2 in the side of the table D, and are connected together rigidly by means of said cross-rod o2. On the cross-rod o2 are pivoted tilting feed-,dogs p2, (see Fig. 4,) having pointed or sharpened ends adapted to seize the under side of the boards vor planks and hold them while they are fed forward. A series of projections or upright supports q2 on either side of the table D are provided with yielding sliding bearings for the rolls r2, under which the boards or planks pass and which hold them in position. The roll fr"2 at the front of the table and that atthe other end thereof have each acompanion roll s2 mounted in hearings beneath the same. The end of the board or plank is inserted between the first roll r2 and its companion s2 as it is fed into the machine. The plank is shoved forward until its end passes between the shaft o2 and the yielding presser-roll directly above it, at which point it is in position to be seized bythe feed-dogsp?. By meansv of the feed-cam b2 the connection cl2 is moved toward the left, Fig. l, moving the sector f2 in the opposite direction and by means of the rack and pinion causing` the feed-dogs to feed the stock forward between the last roll r2 and its companion roll s2. To move the feed mechanism in the opposite direction a spring a4 is employed, which is secured at one end to the lower part 0f the lever c2 and at the other to a projection b4 from the leg E. As the feeddogs point forward-that is, in the direction in which the board c4 is to be fed,(see Fig. 4)- the reverse movement of the feed mechanism frees the' dog from its hold in the board, and

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until the forward feed movement again commences, when they once more seize the board and feed it forward. The rear ends p6 of the dogs are weighted sufficiently'to hold their points up against the wood and are provided with adjustable screw-threaded stop-pins d4, by means of which the bite of the feed-dogs may be regulated, as will be clear from Fig. il. By having two or more dogs mounted on the rod o2 the machine is fitted to feed forward together two or more planks or boards.

lVhen the stock has been fed forward between the upper and lower cutters, it rests on the lower member q of the clamping device. The upper or movable clamp is then moved downwardly and the wood is firmly secured between the clamps j q. The contact-face of the clamp member j is preferably covered with a rubber facing ji), which is roughened or corrugated or provided with downwardly-proj ecting points which compress under pressure and which serve to hold the wood firmly in place. This rubber facing is of sufficient thickness and is sufficiently compressible to accommodate itself to boards of unequal thickness, so that two boards placed side by side and of unequal thickness may be firmly clamped between the upper and lower clamp membersj q. After the clamp members have seized the wood the cutters approach and pass into it, one of the cutters acting in advance of the other, so that the knives will not come into contact, and the disk is severed. The cutters and clamp members then separate, the

Wood is again fed forward, and the cutting operation repeated. The feeding forward of the wood shoves the disks which are cut, as also the waste stock, off the table and clear of the machine. The cutter-heads and cutters are so constructed that the cutters may be adj usted to cut disks of varying dia-meters. This will be clear from Figs. 2 and 3. The cutter-head is preferably a wheel with as many spokes (see Fig. 3) as there are cutters. On each of the spokes or connecting portions between the rim of the wheel and its hub is mounted a knife-block f4, which is set in a slot in the wheel and secured by a set-screw, so that the block may be slid in its slot and the distance from the center of the cutterhead varied, thus varying the diameter of the disk which is cut. The knife-blocks f4 have secured to them in any suitable manner the knives g4, said knives being preferably secured by screwing the fiat shank of the knife Any bevel or slant desired on to the block.

the edge of the disk may be obtained by varying the bevel or slant of the knife.

That l claim is- "1. A wood-working machine comprising a horizontal table or bed upon which the wood is supported while it is being cnt, a verticallymovable clamp member co-operating with the said table or bed, two vertically-movable cutter-heads, means for rotating the said cutterheads, vertical rods carrying the movable clamp member and horizontal table or bed aforesaid, vertical sleeves carrying the cutterheads and surrounding the said rods, levers operatively connected with the said sleeves and the rod of the movable clamp member, rods CZ e', yokes m n', cams b c in engagement with said yokes, and cam o', acting upon the lever connected with the sleeve of the lower cutter-head and horizontal shaft t, carrying the said cams, substantially as described.

2. The combination,in a wood-working machine, with a horizontal bed for the wood, of a vertically-movable rotary cutter-head and cu tters, mechanism for rotating said cutter-head and moving` the same vertically, a verticallymovable clamp member for holding the Wood and actuating mechanism therefor,with a sliding cross-bar and feed-dogs thereon, and actuating mechanism for said cross-bar, whereby after a disk is cut and the clamp is withdrawn the wood will be fed forward to subject another portion thereof to the cutters, substantially as shown and described.

3. The combinatiomin a wood-working machine, with a horizontal bed for the wood and clamping and cutting mechanism therefor, of the cam b2, the connection d2, the vertical lever e2 and its sector, the gear g2, the rack and pinion 71:23?, and the cross-frame and feed-dogs pivoted thereon,substantially as shown and described.

JAMES H. REED.

Vitnesses:

WM. A. MAoLnoD, ROBERT WALLACE.

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