US181784A - Improvement in machines for making horseshoe-nails - Google Patents

Description

I 2 Sheets-Sheet 1..

J A. HUGGETT. I MACHINES FOR MAKING HQRSESHOE NAILS.

Patented Sept. 5, 1876.

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Z Sheets-Sheet 2.. J. A. HUGGETT. MACHINES FOR MAKING HORSESHOE NAILS. N 181 7 3 4 z Patented Sept. 5, 1876.

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UNITED STATES PATEhT'IL-QFFIE.

JOHN A. HUGGETT, OF 12 FERNDALE ROAD, CLAPHAM, ENGLAND.

IMPROVEMENT IN MACHINES FOR MAKING HORSESHOE-NAILS.

Specification forming part of Letters Patent No. 181,784., dated September 5, 1876 application filed April 8, 1876.

To all whom it may concern:

ments in the manufacture of horse-nails.

According to my invention I employ a metal, which, in addition. to possessing all the other qualities necessary for a horsenailsuch as tenacity, softness, and pliability-is homogenous, or nearly so, and as strong in one direction as another, so that there is no necessity that the nail should be cut in the direction in which the metal is rolled. The metal I employ is a soft cast-steel, produced by the Bessemer process from charcoal-iron. A similar steel is also produced by the Siemens-Martin process, and may be used equally well. I roll a bar from this inetal of a section corresponding in form to a horse-nail, or, preferably, to two horse-nails placed point to point, so that there are flanges or ribs on the edges of the bar corresponding to the heads of the nails. From this bar I shear the nails. The bar is out up by two pairs of shears, to which it is taken alternately; and this I do by automatic mechanism, as hereinafter described. The first pair of shears shape the end of the bar by cutting of a waste piece, and the second pair of shairs then cut ofl' two completely-formed horsenails, and so on, alternately, first a waste piece is removed, and

'then two nails are cut from the end of the bar. The nails are rubbed to remove any roughness from the edges, and they are then annealed.

In order that my invention may be fully understood and readily carried into efl'ect, I will proceed to describe the drawings hereunto annexed.

Figures 1, 2, and 3 of the drawings show various views of an automatic machine for transversely cutting up the bar into nails in the manner above described. Fig. 1 is a side elevation, Fig. 2 a front elevation, and Fig. 3 a plan, of the machine.

The bar is, as before stated, first rolled to a section corresponding in form to two horsetion of two nails placed point to point, it might be rolled to the section of one nail only, and be cut up into nails by successive cuts in the same manner. I, however, prefer to form it to the section of two nails, as above described.

The machinery for effecting the shearing up of the bar into nails is composed of two pairs of shears, as before stated. The movable blade at of each pair is carried by a slide, 1), to which an up-aud-down motion is imparted by an eccentric, c, on the main shaft d. The fixed blades of the shears are secured to the framing of the machine. The plate to be sheared is laid into a trough or holder, 0, which is carried at its two ends by rods or arms f on a shaft, 9, to which a rocking motion is imparted. By this means a sidewise to-and-fro motion is given to the trough or holder, and the end of the bar carried by it is presented alternately to the action of the two pairs of shears. The rocking motion is given to the shaft 9 by a rod, h, passing from an arm, 9, on the shaft 9 to an eccentric, k, which is driven from the main shaft, and at half its speed. The amount of movement given to the rod h by the eccentric is more than sufficient to give the requisite traverse to the trough or holder, and the rod h is not jointed directly to the arm g on the shaft g, but this arm is jointed to a slide capable of traversing along the rod, and a spring is placed both above and below the slide. By this means when the trough or holder has been moved sidewise to either extremity of its traverse, and is arrested by stops l, the spring, either above or below the slide, will be compressed, and the trough or holder will remain at rest, and while it remains at rest the end of the bar carried by it will be acted upon by one or other of the pairs of shears.

In order to feed forward the bar a proper comes level with the fixed shear-blades.

distance after its end has been acted upon by both pairs of shears, the end of the bar is held between rollers m m. The rollers are both carried with the trough, and the bearings of the upper roller m are mounted upon it; but the lower roller m is able to slide with groove and feather along the axis it, having its bearings on the main frame. The rollers m m are geared together by the pinions m and they are made to nip the bar firmly by coiled springs m The bottom of the trough e is cut away to allow the rollers to nip the bar. The axis n is rotated step by step by having a broad-tread or flanged disk, 14/, fixed upon it, with which a nipping-pawl, 0, engages. The pawl-lever is actuated by a connectingrod, 19, passing to the lever g, which, at one end, has its fulcrum on the frame, and at the other is connected by the rod, 4", with the arm g" upon the rocking shaft g. The lever q is slotted, as is shown, and the end of the rod 10 is adjustable along it, for the purpose of adjusting the feed as may be required.

From the foregoing description it will be seen that the trough or holder is given a bodily sidewise or parallel motion only, and that the nail-bar is fed forward to the shears independently of the trough or holder by the feedingrollers.

At the back of the fixed blades of the shears a presser-plate,s, is mounted, held up by powerful springs 15. When the slide 1) descends, the piece to be detached from the. bar becomes held between the upper cutter and the presserplate before the piece is shorn off, which insures the out being truly made.

When the slide, carrying the movable jaws of the shears, rises, the piece cut off from the plate remains held until the presser-plate s The movement of the presser-plate is then arrested and the piece cut off falls away, or is knocked off so soon as the plate, from which it had been cut off is moved sidewise. The waste pieces cut off by one pair of shears fall into one receptacle to be remelted and rerolled, while the nails, cut away by the other pair of shears, fall into a separate receptacle.

I am aware that nails have heretofore been out from plates rolled to a form corresponding in cross-section to the shape of the nails,

and do not therefore, broadly, claim cuttingnails from plates of such shape.

Having thus described the nature of my invention and the manner of performing the same, I would have it understood that I claiml. The combination, substantially as hereinbefore set forth, of the shears, the nail-plate holder having a sidewise to and fro motion only imparted to it, the axis having its bearings on the main frame, and rotated step by step, the feeding-rollers carried with the holder, and the groove and feather connection between one of said rollers and the intermittently rotated axis, whereby the roller, while free to move with the holder along said axis, is positively rotated therewith to feed the plate to the shears.

2. The combination of the rocking shaft, the nail-plate holder supported and moved sidewise thereby, stopsfor limiting the traverse of the holder, the pitman h, the arm connecting the pitman and the rocking shaft, and the spring-bearing connection between the pitman and connecting-rod, these members being constructed and operating substantially as set forth, for the purpose specified.

3. The combination, substantially as hereinbet'ore set forth, of the swinging lever q, the disk, its pawl and lever operated by the swinging lever, the disk-axis, the pinions operated thereby, the nail-plate holder, and the feedingrollers.

4. The combiuation of the eccentric driven by gearing from the main shaft, the pitmanrod operated by the eccentric, the rocking shaft connected with the pitman and supporting the nail-plate holder, the swinging lever connected with the rocking shaft, and the intermittently moving disk, operated through its connection with the swinging lever, and imparting motion to the rollers for feeding the nail plate, these members being 'constructed and operating substantially as hereinbefore set forth.

London, March 1, 1876.

J. A. HUGGETT.

Witnesses:

WILMER M. HARRIS, JOHN DEAN, Both of N0. 17 Gracechurch St, London.

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