US338871A - Chaeles h - Google Patents

Description

(No Model.) 3 Sheets-Sheet 1. 0. H. PERKINS.

HORSESHOE MAGHINB.

N0. 338,871. Patented Mar. 30, 1886.

mwm; My M256 9 WW N. PETERS. Photo-Ulhognpher, Wanhinglan, D. C.

3 SheetsSheet 2.

(No Model.)

0. H. PERKINS.

HORSBSHOB MACHINE. No. 338,871. Patented Mar. 30, 1886.

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(No Model.) 3 Sheets-Sheet 3. G. H. PERKINS.

HORSESHOB MACHINE.

No. 338,871. Patented Mar-J30, 1886.

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"ll i N. PETERS, Plwlomhagnpmr. Washington D C.

UNITED STATES PATIENT @rrren.

CHARLES II. PERKINS, OF PROVIDENCE, RHODE ISLAND.

HORSESHOE-MACHINE.

SPECIFICATION forming part of Letters Patent No. 338,871, dated March 30,1886.

Application filed January 25, 1886.

To all whom, it may concern:

Be it known that I, CHARLES H. PERKINS, of the city and county of Providence, in the State of Rhode Island, have invented certain new and useful Improvements in Horeshoe- Machines; and I do hereby declare that the following specification, taken in connection with the drawings furnished and forming a part of the same, is a clear, true, and complete description of the several features of my in- Vention.

In a cotemporaneous application for Letters Patent I have illustrated and described several forms of horseshoe-machines embodying features of invention which have been broadly claimed in said application. My present application relates to certain specific features embodied in one form of said machines, and after a description thereof in detail the features deemed novel will be specified in the several clauses of the claims hereinafter annexed.

Referring to the three sheets of drawings, Figure 1 is a front elevation of said machine. Fig. 2 is a side View thereof applicable in es sential matters to both sides of the machine. Fig. 3 1s a top or plan view of the machine. Fig. 4 is a front View of the upper portion of the machine and a lateral vertical section of an underlying portion thereof on line 20, Fig. 3.

The frame A may be widely varied inform, due attention being given to providingafeeding-table, a, and proper guides and bearings for the movable parts, and proper supports for such other portions of the machine as oooperate passively with said moving parts.

The sliding diebed B is operated by mechanism below said bed, as follows: A lower driving-shaft, b, geared to a counter-shaft, b, in turn geared to one of two crank-disks, b coupled together by a wrist-pin, b passing through a slotted lever, If, mounted at its foot to a rock-shaft and coupled at its upper end to the bed by a link. (Not shown.) On said sliding die-bed there is a forming-die, B, having a contour corresponding to the interior line of afinished horseshoe, and is shown only in section in Fig. 4, it being in the usual form.

This formingdie, as usual, cooperates with the Serial No. 189,633. (No model.)

pendent studs 0, Fig. i, inmaking the initial bend, said studs being adjustable with reference to said forming-die. The finishing bend, or contracting the heels of the shoe, is performed by the pivoted horizontal jaw-levers c, which are coupled in the rear of their pivots by the retractile springs 0 so as to normally maintain their working-jaws c in an open or widely-separated condition. Said jaws are pivotally mounted upon and are carried by the sliding bed, and at their rear ends they are provided with vertical studs 0*, having friction-rollers. These leverjaws are closed, for operating upon a blank, by the contact of the studs 0 on said levers, with the rear tapered end of a stationary cam-plate, c projecting rearward from a portion of the frame of the machine adjacent to the table a and over and parallel with the upper surface of the bed, as clearly shown in Figs. 2 and 3. Said jaws are opened by the spring after the studs 0 have passed the straight sides of the cam-plate 0 the front end of which has inclined surfaces, as clearly shown in Fig. 3.

The release of a shoe from the forming-die is accomplished by means of a pawl, d, and a vibrating clearer, c. (Indicated in dotted lines at the rear portion of the machine, Fig. 3.)

The forming-die, the studs, and the leverjaws constitute the bending mechanism, but said jaws, after bending, serve as clamps.

The hammer C may be varied in form; but the best results will accrue from the use of the rotary hammer shown, which embodies the rollers f between disks f, mounted upon a shaft, f provided with a driving-pulley, f and a second pulley, y, by which power is communicated to the lower drivingshaft, b.

The swaging-dies D are in the form of sliding blocks, in guides above the bed and partially over it, and have their working faces at g, which co-operate with surfaces 9' at the rear lower edge of the table a. These dies are vibrated to and fro by means of a rockshaft, h, having pendent fingers h extending into holes in said blocks, and said rock-shaft is ment of the dies is caused by gravity, the. weight of the lower end of the levers h -enabling them to swing into their normal positions (shown in Fig. 2) when released by their cams. Above, and located across the sliding bed, is a blank-carrier, E, which is fitted to vertical guides in an upper portion of the frame of the machine, so that it may be vertically reciprocated in a line at right angles to the plane of the sliding bed. This carrier embodies a block or plate, i, pendent from lateral studs t",which extend through slots 1' in the frame and are pivoted to vertical sliding bars i which, at their lower ends, are engaged by the cam i. The form of said cam isrsuch that at proper intervals the block is fully elevated,then partially dropped, and then fully dropped, and it is there held just clear of the bed by the studs at the lower ends of the slots until the next complete upward movement. This carrier-block is enabled to support a blank by means of two brackets, is, each at the lower end of a sliding rod, freely guided in vertical slots or holes in the. block, and supported at their upperends upon a spring-supported plate, As will be readily seen, said plate It is centrally mounted on top of a sliding rod encircled by a spiral expansive spring, said rod and spring being partially housed in a vertical recess or hole in the top of the carrierbloek. In a vertical portion of the frame are two stationary projecting pins or studs, is", so that when the carrier-block is fully lifted said bracket-rods are abutted against said studs and the power of the plate-spring overcome, thus arresting but practically lowering the brackets, so as to receive a blank, and then when the carrier next descends the blank is lightly gripped between said brackets and the lower edge of the carrier-block.

The centering or gaging of the blank, so as to accurately present it first to the swagingdies and then to the bending mechanism, is accomplished by means of the vertical gagingfingers Z, which are pivoted at l to the carrierblock, and have springs Z for normally drawing their lower or working ends, Z toward each other when engaging with the two ends of a blank. The opening of said gaging-fingers is only of consequence when they are to receive a blank, or, in other words, when the carrierblock is in its highest position, as shown in Fig. 4. Each finger, at its upper end, is angular, as at Z, and said angular ends are abutted by the projecting stationary studs or pins Z during the terminal upward movement of the carrier, so as to force the upper ends of said fingers toward each other, and cause a corresponding outward movement of their lower ends.

In other forms of carrier I have provided the gaging-fingers, at their coincident lower ends, with projecting pins or studs, as indimay be here used, if desired, to serve as supports for the blank, either separately or as mere auxiliaries to the brackets k, and if these latter be dispensed with then said finger-studs will serve as their equivalents.

The operation of this machine should be readilyunderstood by personsskilled in the art from the description thus far given; but I will further explain that a straight blank is placed on the table a and delivered by hand to the blank-carrier, which then descends, meantime accurately centering the blank.

When it has placed the two ends of the blank The bed, still advancing, then slowly presents I the shoe to the action of the hammer, the leverjaws acting as clamps for properly holding the shoe, and after passing the hammer the shoe is clearedand dropped from the machine by suitable mechanism, which does not pertain to this application, although the same has been hereinbefore referred to, and is illustrated in dotted lines in Fig. 3.

Having thus described my invention, I claim as new and desire to secure by Letters Patent 1. In a horseshoe-machine, the combination, substantially as hereinbefore described, of the sliding bed and the bending mechanism, the swagingdies above said bed, the verticallyreciprocating blank-carrier, and the hammer. 2. In a horseshoe-machine, the combination, substantially as hereinbefore described, of the sliding die-bed, its forming-die, the studs and jaws 00- operating therewith, the swagingdies above said bed, a vertically-reciprocating blank-carrier, and a rotating cam for controlling said carrier by first fully lifting it for receiving a blank, then dropping it for presenting the blank to the swaging-dies, and then dropping it still further for presenting it to the forming-die on said bed, and thereafter rising to its full height.

3. In a horseshoe-machine, the combination,

substantially as hereinbefore described, of the the inclined ends of said finger during the eating carrier-block, and the blank-supporting upward movement of the carrier and cause brackets cooperating with said block for afsaid ends to move toward each other and fording a blank holder and carrier.

thereby cause their lower ends to move out- CHARLES H. PERKINS. 5 wardly for the reception of a blank. Witnesses:

5.- The combination, substantially as here-. G. LoUIs BOWEN, inbefore described, of the vertieally-recipro- CHARLES R. STARK.

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