US17542A - Egbert cook - Google Patents

Description

UNTTED STATETENT OFFICE.

ROBERT COOK, OF SOUTH ABINGTON, MASSACHUSETTS, ASSIGNOR TO HIMSELF AND SAMUEL NORTON.

MACHINE FOB FORGING HORSESHOE-NAILS.

Specification of Letters Patent No. 17,542, dated June 9, 1857.

To all whom 'it may concern:

Be it known that I, Roem" Coon., of South Abington, in the county of Plymouth and State of Massachusetts, have invented an Improved Machine for Forging Horseshoe'Nails or Articles of Like Character; and l do hereby declare that the same is fully described and represented in the following specification and the accompanying drawings, of which- Figure l, is a top view of said machine. Fig. Q, a side elevation of it. Fig. 8, a rear elevation of it. Fig. 4, an elevation of the parts in front of the hammers. Fig. 5, a vertical, central, and longitudinal section of it.

In the drawings, A, B, C, and D, are four hammers or strikers, which are arranged so as to operate on the four sides of a bar of metal when it is placed between them; the hammers A, and B, being made simultaneously to impinge against the two opposite sides of said bar, its other two opposite sides being reduced by a similar action of the other two strikers or hammers. Each of said strikers is arranged within one of four guide levers E, E, E, E, while each of the three upper ones turns on a fulcrum or pin, a, extended through said guide lever and the rear end of the striker'. Each lever E` which turns on a fulcruin (Z, is furnished with a recess or guide B, B', C', C', for the reception of the striker and so as to enable the said striker to play laterally between said guides or into such recess. A spring, F. applied to the lever', E, and operating against the outer edge of the striker serves to resist the backward motion of the striker, while it is in the act of giving a blow on the nail rod, the spring operating to prevent the force of the blow from injuring the shaft of the guide lever. Each of said guide levers is aflixed to one of four shafts G, G, G, G, and is moved in one direction by the action of a cam, and in the other by that of a spring, the series of guide lever cams being shown at d, c, j", g, as applied to a driving shaft, 71 arranged as shown in the drawings. The counteracting springs of the guide lever are shown at fr', vf, a', in Figs. l, 2, 3.

H, is an upright or standard ele 'ated on the base, 76, of a secondary frame, P, applied to the base of the frame, I, of the machine,

and in front of the strikers. This standard has a curved slot, Z, made through it for the reception of the movable feeder K. It also supports a stationary cutter, m, arranged as shown in Figs. l, and 2. lVith this stationary cutter, a cutter, n, applied to a lever, o, operates. This lever has its fulcrum at, p, and is tilted in one direction by another lever, r, and a cam, s, arranged as shown in the drawings, the said cam, s, being ixed to the driving shaft. A spring, t, serves to move the cutter lever in the opposite direction.

The feeder is hinged to a lever L and so that the said feeder may move up and down as occasion may require. Such lever, L, turns at one end on a pin or fulcrum, u,

projecting from a standard, lv. A pitman,

M, formed with a shoulder, fw, as seen in Fig. 2. slides through the other end of the lever, L. and turns on a crank pin, as, extended froni a cam, s. A catch lever, N, is carried by the lever, L, and turns in a vertical plane on a fulcrum y, arranged as shown by dotted lines in Fig. 5. From a post extended upward from the frame, a spring catch, O, projects, as shown in Figs. l and 2. A counteracting spring, R, is applied to the feeder. as shown in the drawings.

ln operating with this machine, the nail rod. after being properly heated, is passed into and through the feeder, so as to extend between the strikers, which on being put in operation reduce and taper it on its four sides. After it has been sufficiently hammered. the attendant lays hold of the catch lever, N, and turns iton its fulcrum, so as to bring its shorter arm down upon the pitman M, and in front of the shoulder, W, thereof, so that while the said pitman is heilig' moved forward, the said shoulder may be carried up to the lever, N, and by pressure against 'the same, cause it to be moved laterally on its fulcrum, so as to move the feeder and introduce the nail rod between the cutters, the spring catch, O, serving to hold the feeder in position while the hammered part of the rod or the nail to be formed thereon is being severed from the rod. AS soon as the nail has been cut oft, the attendant raises the spring catch, O, and turns the catch, N, so as to enable the counteracting spring R to draw the feeder back to its original position.

What I'elzlm .is- D moved and held up to the cutters and set l. Arranglng each strlker 1n a separate free therefrom as circumstances may reguide lever and operating Such striker lo"v qure.

a spring nd such guide lever, When the In testimony whereof, I have hereunto set 5 latter s actuated by means substantlally as my signature.

described.

ROBERT COOK.

2. I also Claim Combining with the pitman M, and the lever L, carrying the feeder, Vtnesses:

a catch lever N, shoulder, w, and spring SAM NORTON, 10 catch, O, whereby the said feeder may-be- SPENCER VINING.

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