US23451A - Shoe-peg machine - Google Patents

Description

UNITED STATES PATENT GALEB COOK, OF HILLSBQRO, lNE'W HAMPSHTRE.

SHOE-PEG MACHINE.

Specification of Letters Patent No. 23,451, dated Afpr "5, 1859.

To au whom it may concern:

Be it known that CALEB Cook, of Hillsboro, -in the county of Hillsboro and State of New Hampshire, have invented a new and Improved Mode of Splitting Shoe- Pegs; and I do hereby declare that the following is a full and eXact description thereof, reference being had to the accompanying drawings and the letters of refer-ence .marked thereon.

The nature of my invention consists in an improved mode of pointing and splitting shoe-pegs at one operation and in several arrangements calculated to facilitate this operation.

My machine consists ot the usual parts of a machine for pointing pegs, c'. c., of a trame, A, the ways, B, a carriage C, a horizontal guide, l), upon which the piece E (called the pointer-wood) reciprocates holding the pointer, F.

G represents a part of the driving pitman and H a part of the feeding shaft. These are worked in the usual manner.

])cscr/y)01i.-lst. The pointer E which is a simple V-shaped plane iron is immediately followed by the splitter K Figs. 1 and which is held in the same groove with the pointer E, in a similar manner to double plane irons. The lower end of this splitter is a smooth oval wedge with the edge down, oblong in the direction of the pointers motion. This splitter is so set that the edge ot it runs a little lower than the point of t-he pointer and so that it will follow just behind the pointer in the groove cut by it in the peg-wood, and splits the wood through beneath it. Thus the pointing and splitting is done at one operation.

The pegwood, L, is fixed on a revolving horizontal table M Figs. l and 2 so thatwhen the peg-wood has been grooved and split in one direction, the table is simply turned 9() degrees or at such angle as may be desired to point the pegs, when the grooves are cut in the other direction and the pointing and splitting inished.

3d. VThere are duplicate removable disks which form tops for the table N` Figs. l, 3, and 4 in order that a block of peg-wood may be fixed upon one disk while the other is in operation in the machine. These disks have four short posts projecting downward which enter four corresponding holes in the table. The table also has four iron points projecting upward which enter corresponding hotles in the disk and protrude slightly above its surface. These points pierce the Abottom of the peg-wood and assist in holding 1t 1n position.

4th. I hold the peg-wood together while being pointed and split by a lchain made like a large watch chain. One 4end of the chain is fastened to a pin in the disk, t-'he other vto a drum' 'near the edge of the disk, a, Fig. l, upon which the chain is wound up 'to tighten i it up around the peg-wood. The operator turns the drinn by inserting a square key in the center of the drum. In order to allow the peg-wood to .expand while being split the drum is made to resist, only a certain degree of strain upon the chain, by a friction appliance. This appliance is made to the stem of the drum reaching through on the bottom side of the disk. The friction is applied by a loop (O, Figs. 3 and 4) lined with leather, P. This loop is put around the stem and tightened up with thumb screws R.

5th. Then the pointer and splitter are going through the peg-wood, in order to hold the peg-wood more securely it is pressed up hard against the under side of the guide piece, D, which has its lower side made rough like a file. This pressure comes from the spring S, Fig. 5, resting against the bottom of two cross pieces of the frame and bearing on the rods T, T, which communicate the pressure to the levers U, U, thence through the posts W, W, to the ways B and so to the carriage upon them. There are four of the levers U, U, one pair, as represented by Fig. 5, at each end of the machine. The two pairs act simultaneously, the axes h, 71. each running through two levers with al solid fastening in the levers and forming a rolling fulcrum for the levers. cog together. The four posts W, YV, standing upon the four ends of the levers are inserted at their tops into the frame of the ways near its four corners. Thus the whole weight of the ways comes upon the levers and it can be raised or lowered by them without warping.

It is necessary that the pressure of the spring, S, should be removed and the carriage allowed to drop. lst. When the pegwood is ready to be cutthe carriage requires to be run back, as the feed motion is from backside forward. For this purpose the carriage must drop so that the peg- The ends of the levers of each pairY come into gear and the peg Wood is pressed.

against the bottom of D. It is necessary 2d that this pressure of the spring S, should be removed While the regular feed motion of the carriage is going on. For this purpose a system of levers X, X, is introduced operated by the last part of the backward stroke of the pointer-Wood Which serves to raise the spring and thus let the carriage drop, at which instant the feed motion takes place freely.

I Two or more revolving tables may be used on the same carriage. Thev drawings show a vplace for a second one.

That I claim as my invention and desire vto secure by Letters Patent is- 1. The disks as described.

2. The method of holding the peg-Wood together by the chain and drum and friction appliance substantially as described.

3. The method of holding vthe peg-wood vfirmly in place by pressing it up against the guide piece D by means of the spring, S, and the levers and posts substantially as described.

4. The method of relieving the upward pressure against D, for the purposes of the feed motion by means -of the system of levers X, X, substantially as shown and de- CALEB COOK.

. scribed.

In presence of 11s- J. H. F. NEWELL, ISAAC S. MARCY.

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