US68222A - Rojbekt g - Google Patents

Description

R. er. M0KA`Y. MACHINE POR MAKING SPIRES.

No. 68,222. Patented Aug. 27, 1867.'

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RGB-BERT G. MCKAY, 0F CLEVELAND, l OHIO.

Lesers Patent No. 68,222, dated' August 27, ism.

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To ALL WHoM 1T MAY coNoERN Be it known that I, ROBERT G. McKAY, of Cleveland, in the county of Cuyahoga, and State of Ohio', have invented certain new and useful Improvements in Spike Machine; and I do hereby declare that the following is a full and complete description of the same, reference being had to the accompanying drawings, making n. part of this specification, in which- Figilre 1 is a side view of the machine.

Figure 2, an end'view.

Figure 3, view of the top.

Figure 4, a front end view.

Figure 5, a vertical section.

The small 'figures are detached sections, to wnicn reference will be made Like letters of reference refer to like parts in the views presented.

A, fig. l, is the base on which B, the frame of the machine, stands. Within this frame are arranged the several parts of the machine, in-` the order as follows, viz In the fron-t end of the frame is tted an ironhead, C, iig. 1, a. vertical section of which is shown in tig. 5. 'To the lower end of this head is ixed, by dove-tailing or otherwise, a steel or chilled-iron swage, D, iig. 9, across the front end of which is fixed a plate, E, provided with two cutting edges, F, tig. 8, the bias of which falls inward, as seen in fig. 1. The bed, or Istationary die, immediately under the swage, i's so constructed as to conform to the 4shoulders on the swage, so that when the swage is down, for a purpose hereafter shown, the two are closely correlativa. The bias of the cutting edge, referred to, is also met with a corresponding bias, G, iig. 5, on the bed or die ofthe swage, to which reference will hereafter be made. In the opposite end of the frame, and corresponding in position with the head and swage, is 'a cam, H, fig. 5, and which is operated conjointly with the head C, in the manner and for the purpose hereinafter shown. Upon the bottom ofthe frame, wit-hin the raised sides I, fig. l, is a set, J', fig. 5, the front end of which is provided wit-htwo short arms, K, iig. 10. The distance these arms are apart and their position is such that they correspond to and are in line with the shoulders 1 1, fig. 1, to which the bevelled cutting edges G' ure secured, and with which the cutting edges F of the swage agree. It will he observed that the ends of the arms just referred to are not square or vertical, but that they slant upward and backward, as seen in iig. ,5, the purpose of which will hereafter be shown. Longitudinally across the top of the frame, and journalled in the cross-stays L, is a. shaft, M, tig. 3, on the projecting end of which is keyed a pulley, N, to which the power for driving the machine is applied. Also on this shaft are two cams, O O', fig. 3. An end view of the same is shown in figs. 6, 7. It will be seen that these cams are immediately over the head C andv vertical cam'-H, and by which the head and cam ure`operated downward, but which are reacted by the spring P, secured to the centre nf the frame by-the screw and nut Q. On the front end of the machineA is arranged a pair of feed-rollers, R, tig. 4, providedwith deep grooves, b. p The distance apart and position of these grooves are such as to bring the opening between-the rollers, made by the grooves, in line with the cuttingedges G F and cams K on the set J, referredto, as indicated by the line x, Eg. 5. These rollers are geared to each other by the cog-wheels S, iig-hand are made to revolve by the lever T, operating the pawl and ratchet-wheel '1" U. On theprojecting end of the shaft M is a cam, V, tig. 4, which, as it revolves, depresses the end of the lever W, but which reacts by the tension of4 the spring af. To the free end of this lever is connected the pawl-lever T, by the link b, and by which the pawland ratchet are made to'operate and turn the rollers by the co-operation of the cam V and spring a.

Having thus described the construction and arrangement ofthe several parts of the machine, the practical operation of the saine is as. follows, viz Rods of heated iron of the proper size are inserted in the grooves of the rollers, by which they are drawn under or between the cutters F G, until the ends reach the point az. This decides the length of the spike, which, onv being thus introduced, is then cut off by the descending cutter F, which is driven downward. by the action of the cam O, exerted uponthe head C; As the spike is being cut olf the end at the same .time is-ulttened dow'ritoa wedge-like shape, `on vthe upper side by the bias of the cutter, and on the under side by the bias or bevel on the' shoulder of the ewage-die. Thus the two sides of the spike are 4brought down to a. proper taperat once. The spike is now tightly held between the shoulders referred to, and

the swage. At this instant the revolving cam O drives down the cam H, the slanting end of which strikes against the miter-endof' the set, and thereby propels it forward in the direction of the end of the spike, and which the slanting end of the arms K strikes, thereby forcing, the end of'thc spike upward by virtue ofV the slant or bias of the end, thus forming the offset or head of the spike, which, on being done, the set is drawn back by the spring e. Atthis moment the spl-ke is free from the grasp of the shoulder and swage, and is, forced from between by the rods cl, fig. 2, which pass through the siclesoi'` the shoulders on which the spike lies and pushes it ofl`,l which then drops through the bottom of the machine. These posh-rods cl are operated by the levers f, which are loosely pivoted to the sides of the machine. On the shaft M are two lugs z, which, as the shaft revolves, strike against the pins z', which pass through the sides of the frame to the upper end of the lever, and thereby push them out, which, as a consequence, throws the Vlower end of the lever in against the side of the frame, but which are again thrown out by the spring m, and soon, as often as the spikes are cut, pointed, und headed, they are pushed from the shoulders by the rods, lever, and lugs, iny one continuous operation.

l This machine can be used singly, if so desired, and also for the purpose of heading bolts, rivets, die., with a like facility and advantage; and when operated in its double capacity, as above described, it will perform its work withggreat rapidity and completeness. v

What I claim as my invention, and desire to secure by Letters Patent, is-

1. The cutting, pointing, and griping-diev D, bed-die D', header K, and spring P, all constructed and arranged as and for the purpose set forth. v

2. The sliding-cam H, header J, and springs P e, in combination with thedes, as and for. the purpose described. l

3. The described arrangement ofthe rollers R, lever W, cam V, spring a, pawl and ratchet, for the giurpose specified.

` ROBERT G. McKAY.

Witnesses:

W. H. BURRIDGE, J. H. Beinamen,

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