US287206A - Hoeseshoe nail blanks - Google Patents

Description

` 3 Sheets-Sheet 1. J. B. WILLS.

(No Model.)

Patented Oct. 23, 1883.

Enns. Pn x 3 Sheets-Sheet 2.

(No Model.)

J. B. WILLS. MAGHINE POR PIVNISHING HoRsEsHoE NAIL BLANES.

Patented Oct. 23, 1883.

3 Sheets-Sheet 3.

(No Model.)

J. B. WILLS. MACHINEl FOR FINISHING HURSESHOE NAIL BLANKS.

Patented Oct. 23, 1883.

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Nv PETERS. FlmxwLilhngmpher. wmuwmn. |10v that class of machines for nishing nail-blanks,

head, as will be described.

AUNITED STATES PATENT Ormea..

JOHN BOMAN VILLS, OF KEESEVILLE, NEV YORK.

MACHINE FOR F-INISHING HORSESHOE-NAIL BLANK'S.v

SPECIFICATION forming part of Letters Patent No. 287,206, dated Qctober 23, 1883. Application filed May 12, 1883. (No model.) Patented in Sweden June 24, 1883, No. 5,834.

To all whom it may concern:

Be it known that I, JOHNB. VVILLs, of Keeseville, county of Essex, State of New York, have invented an Improvement in Machines for Finishing Animal-Shoe-Nail Blanks, of which the following description, in connection with the accompanying drawings, is a specification, like letters on the drawings representing like parts.

This invention relates to improvements in wherein the blanks to be operated upon are carried by an intermittingly-operated chain, and are presented to dies to be drawn or elonv gated cold and beveled, and then sheared, the:

improvements having special reference to the machine for which Letters Patent No. 250, 863

were granted to me the 13th of December, 1881. a

My invention consists in improvements in the carrying-chain, in mechanism for cold' drawing or elongating the blanks, and for curving the same, and in mechanism for discharging the nail from the carrying-chain In accordance with the first part of my invention, the links of the carrying-chain have secured to them detachable nail-holding plates having laterally-projecting cars provided with recesses or pockets beveled internally to receive the shank and beveled heads of the nailblank, the said ears being also beveled at their outer faces, as will be described, to allow the drawing-roller to strike theblank close to its The nail-blank having been rolled,` beveled, and sheared, it must be discharged so another part of this invention consists in the combination, with a carrying-chain, of a `discharging device to strike the points of the nails and drive them from the pockets in the ears of the plates of the carrying-chain. To enable the fiber of the metal at the opposite faces of the nailblank being rolled, and thus drawn or elono gated, to be kept in a more uniform condition,

and also to enable any desired curve to be the are of a circle, and at the same time thel said die-block is made-movable horizontally toward and fromthe rollendie, to ,permit the bodying my invention; Fig. 2, asection of Fig. l on the dotted line x x; Fig. 3, a side view of the machine, looking at it in the direction of the arrow, Fig. 1, with the cam d" removed. Fig. 4 is a side elevation of one of the links of the carrying-chain, with the attached nail-holding plate. Fig. 5 is a section of Fig. 4 on the line x2. Fig. 6 is a top view or plan view of Fig. 4. Fig. 7 represents a nail-blank curved as it may be by the roller and bed-die, to be described. Fig. 8 is a view of thesupporting-block E, t0 be described 5 and Fig. 9, separate View of the nail-holding plate.

The main shaft A, driven, by a belt (not shown) on usual friction clutch-pulleys, A A2, has its bearings A3 of the frame Ai. This vshaft A has a cam, B, (see Figs. 1 and 3,)

which acts upon a roll, B, of an arm, B2, of and turns the rock-shaft B3, (see Fig. 2,) having its bearings at B*, and provided at its upper side with a cap-piece, B5.

The upper side of the rock-shaft B3 is concavedfand the under side of the cap also concaved, to receive the round end 2 of the yoke C, to the front end of which is attached the cap C', having ears to receive thepin 3, which serves as the axis of the die-roller C2. The rocking of shaft B3 moves the yoke and dieroller backward and forward longitudinally.

The arm B2 acts against a second arm `D of a rock-shaft, D', having a cam-tappet, D2, (see Fig. 2,) which bears against the rear side of the block-carrier D3, forked at its lower end to fita reduced part of the bracket D5, the said carrier being attached to the said bracket by the pin 4. This carrier at its front side, near its upper end, is provided with a removable steel supporting-block, E, (see Fig. 8,) having a part, 6, of its face beveled more or less, according to the curve it is desired to give the body of the nail. The rear side of the blockcarrier D, near theupper end of the latter, is

shouldered or cut away, as at 7, to permit the` IOO said carrier to fall back in the direction of the arrow 9 under the action of the spring F, when the tappet D is turned in the direction of the Y lin the rock-shaft B2, so that the cap C' and its roller C2 are caused to move up and down sufficiently to cause the roller-die C2 to travel from end to end of the body of the nail, or from end to end of the die H, opposed to said roller-die.

The yoke, or, rather, the cap G, has a link, H2, pivoted to it at 10, and joined at its lower end by pin I2 with the die-operating lever L, having its fnlcrum-pin I2 adjustable in a slot, I2, of a hanger, I4, of the frame A.

The lever I has pivoted upon it a link, L, having at its upper end a bolt or pin, ,which is extended loosely through a hole in the dieblock L2, having the stud-die H, against which rests the back of the nail-blank,while the dieroller C2 rolls over the face of the nail. This pin chas aroller, b,which bears on or against and rolls over the block E as the yoke is raised and lowered. The toe 22 of the die-block L2 bears on a rest,13, (herein shown as a roller,) to avoid friction, and the said toe is kept in contact with the said rest, which serves as a fulcrum for the die-block, by means of the spring F, one end of which is hooked to engage the said toe. This hook is not needed when the die-roller is descending, as the pressurc exerted on the die-block at that time isy sufficient to force it strongly against the said rest.

In the operation of rolling a blank from near its head to its point, the thickness of the block will be determined by the shape of the face of the die H, and the curve of the body of the block will be more or less, according to the l shape ofthe block E and the position of the full Vhen the die-roller C2 Y crum I2 ofthe lever I. descends to act upon a nail-blank, lever I, link L, and pin Va are also drawn down, and during such movement the dieblock L2 is turned in the direction of the arrow 16, Fig. 2, 'causing the face of the die H to hold the said nail-blank closely against the roller-die C2, which then moves only in the arc of a circle, the yoke Gand l roller-die `C2 being then held forward by the cam B acting on the arm B2. The face of the l die H is in substantially the are of a circle, it varying from a true circle only to provide for the taper of the nail, the die being yof greatest radius at its lower end. The curve in the body v of the nail depends upon the position of thel pin a Vand the face of the die H with relation to the path of movementof the roller-'die G2. The higher the pin a when the said roller-die strikes the blanks the less the curve in the blanks, and consequently by adjusting the fulcrum I2 of the lever I and changing the block E the body of the nail-blank may be given any desired curve.

The carrying-chain is composed of links c, provided with ears c', having holes c2, to receive pins or bolts c4, the ears of adjacent links being thereby tted together to form joints, as usual. Each link is grooved at its top transversely, as at o2, to form a ratchet-tooth, which may be engaged by the pawl d, pivoted on the reciprocating pawl carrier d', having its shank guided in the guide-box d2. The head of the pawl-carrier is provided with a roller, aF, which is struck by the cam d4, fast on the shaft A, the said pawl-carrier being normally held by the spring d5 with the roller d2 against the said cam. The pawl moves the chain the distance of one link at each forward thrust, so as to properly place in succession eachblank between the dies or devices to operate upon them. Each link has a nail-holding plate, e, attached to it by a screw, e', and each plate is provided with a projection, e2, in which is made a pocket (shown clearly in the drawings) beveled at its inner side, to properly receive the head of the blank, the projection e2 holding the blank in position while being operated upon by the dies. The walls ofthe said projection bear against and guard each of the four sides of the head of the blank 'and nail, so that the same, once dropped into the pocket in the projection, cannot be removed exceptby liftin g the nailvertically therefrom, which is done at theproper t1' me by the discharging device f, (shown as a plate faced with rawhide, leather, or other material which will not bruise the point of the nail,) the said plate being carried by a lever, f pivoted at f 2, and having Yone end, f 2, extended back of the said pivot, to be acted upon by a cam (not shown) on the shaft A. This discharging device is so pivoted with relation to the bottom ofthe chain that the nails struck by the discharger will be 'knocked up through and from the top of the pocket and so as to fall outside ofthe chain.

In all other endless carrying devices known te me the heads 'of the blanks and nails have been held by the carrying device only at their` rear sides and side edges, a device not connected with or forming part of the chain being depended upon to retain the blanks or nails in the notches of the carrying device when being carried 'to and while being acted upon by the dies; but in this invention the proj ection e2 surrounds the heads Ior blanks of the nails, `and no other device or piece is required to retain or hold them while being presented to the dies.

The chain is extended over flanged sheaves g y', and between the said sheaves are chain-rests g2. The die-'stock M receives through it an eccentr-ic, M', 011 the shaft A, and the tail of the die-stock is extended through anopening in a box,lM2, mounted loosely on the shaftB,and having a-cover or cap, M2, the said box oscillating as the tail of the die-stock is reciprocated through it. The die-stock carries a beveling-roller, on,

IOO

IIO

1o The die-stock M also carries one part, a, of

the shearing-dies, the other part, made as aC punch and marked n, being attached to the frame-work.

A spring, a2, the lower end of which is attached to the frame-work, is interposed between the side of the die m and the punch a', to prevent the blank from striking` against the side ofthe said punch as the blank is being placed by the carrier or chain. between the shearing-die and punch.

The blank acted upon by the die-roll C2 may be left curved, as in Fig. 7, or more or less curved, by simply adjusting the lever I and changing the shape of the supporting-block E. The shipper-lever is marked o.

By making the block-holding projection e2 act upon all sides ofthe head, the machine is simpliiied and made more positive in operation and as a means for accurately presenting the blanks to the several dies.

I claim- 1. The carryingchain composed of links and nail-holding plates provided with projections having pockets to receive and retain the heads of the nail-blanks, fitting upon all /sides of the same, combined with -means to hold the said chain, substantially as` described.

2. The sheaves g g', and carrying-chain having plates provided with projections and pockets to receive and hold the heads ofthe blanks on all sides, as described, and means to move the said carrying-chain, combined with a discharging device to act upon the points of and discharge the finished nails upward out from 45 the said pockets, substantially as described.

3. lThe sheaves g g', and carrying-chain hav- 257,206 j j s ing plates provided with projections having pockets to receive the heads oi' the -blanks and inclose them on all sides, combined with the die-roller, means to move` it, and the die H 5o vand die-block, the projectionsalone holding the heads of the blanks while the die-roller is made to travel over the shanks of the said blanks, substantially as described.

4. lThe die H, the die-block L2, provided with the toe, and the rest or support for the end of the die-block, andthe movable pivot 'c ofthe die-block, combined with the die-roll and with means to move the said die-roll and the said pivot, in orderthat the'die-block may rock while the die-roll is being moved, substantially as described. l

5. The die-block, its 4pivot a, and lever I, and means to adjust the said lever to place the said`pivot in a normally higher or lower posi- 6 tion, combined with the supporting-block E and block-carrier D3, to operate substantially as described.

6, Theblock-carrier D3, its beveled supporting-block E, the lever I, the links L and H2, the die-roller, the cap O, andmeans to move the said cap and die-roller, and the die H and the die-block IF, pivotedupon the link L at a, and the rest for the other end of the die-block, combinedv with means to act up on and hold the block-carrier while the die-roller is descending in contact with the blank then resting against the die H, substantially as described.

7. The die-block provided with the toe l2, and pivoted at a, the link L, and means to move it to slide and turn the die-block upon the said rest, combined with a spring to act upon the die-block and maintain it on-the said rest, substantially-'as described.

In testimony whereof Iliave signed my name 8 5 to this specificati on in the presence of two subscribing witnesses.

JOHN BoMAN WILLs.

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