USRE2426E - steadman - Google Patents

Description

J. STEADM'AN. Metal Punch; No. 2,426. j Reissued Dec. 18. 1866- fnven'lvr 25227068698 am egg M m N. PiTEflS. Pholu-Linblgripher. Washinglnm 0 (L Quinn tetra gain ffirr.

IMPROVED PUNGHING MACHINE.

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TO ALL WHOM IT MAY GONOERN:

Beit known that I, J STEADMAN, of Pecatonica, in the county of Winnebago, and State of Illinois, have I invented a new and useful improv ement in Machines for Punching Metal; and I do hereby declare that the following is a'full, clear, and exact description thereof,- which will enable others ski lled in the art to make and use the same, reference being had to the accompanying drawings, forming part of this specificatiomin which- Figure 1 is an elevation from a side view of a machine made Figure 2 is a front view. v Figure 3 is a separateview of one of the punches. Similar letters of reference indicate like parts. The object of this invention is to produce a punching machine capable of being easily operated by hand for the use of Blacksmiths and other mechanics, by the aid of which their work will be greatly facilitated. A designates the frame of tb e machine. It rises from a platform, Q, whichalso sustains two standards, M

the use of which is to furnish bearings for the rock-shaft, L. The lower part of the frame is open, as at T, to

according to my invention.

form an open space through which I the punch can pass on its way to the bed-plate. B is the block or pedestal which sustains the bed-plate, being made from the lower part of the frame, A. It is perforated from top to bottom, as seen at S, fig. 2, and the platform, Q, is cut away beneath the perforation, S, to allow whatever metal passes through it to reach the ground The upper part of the frame extends over the block, B, being formed through it to receive the socket, F, which is moved up and down throughit like a semi-arch, and its upper ends are forked, as at a a, to receive the rock -shaft, R, at top and allow room for the action of the link, G. That. part of the frame from which the forks,

a a, proceedhas a perforation, V,

in the operationof the machine. E designates a punch which is placed in the socket. The rock-shaft, R, carriesa right-angled lever, I H, which is keyed to it, the short arm, H, of which is jointed to the link, G. The outer end of the arm I is jointedto a connecting-rod, J, whose lower end is jointed to the outer end of the arm, K,of a rock-shaft, L, supported on the standards, M M. The opposite end of the rock-shaft,'L, has another working or hand-lever, P, by a link, 0. It will be observed I that the increase of leverage is very rapidtbrough the arrangement of levers, connecting rod, and arms above described, and a great force is obtained wherewith to bring the short arm, H, toward a vertical position and thus drive thepunch, E, through the metal to be operated upon; The bed-plate is made in two parts, 0 and I), whereof the part 0 slides in a dovetailed groove, made in the face of the part D, so as to bring openings ofditfe'reut sizes below the punch. The part 0 likewise slides in a-groove made in the face of a block.

arm, N, which is connected to the This maehineis made portable and of convenient size for small shops, such as blacksmithing shops and others, in which frequent necessity arises for punching holes; through plates and bars of metal, as in wagonmaking, ironing wagons, and the like. i

What I claimas new, and desire to secure by L'ettersPatent, is.

1. The socketF, sliding through the opening'V, operating in combination with the link G, pivoted to the right-angled lever at its inner end, whose outer end is pivoted to the connecting-rod J, operated by the adjustable right-angular lever P, substantially as described.

1 2. The combination and arrangement ofthe link G,-which drives the socket and punch F E, with the righ-tangled lever I H, working on the rock-shaft R,v and the connecting rod J, arms K N,rw orking on the rock-shaft I L, and the link 0 and hand-lever P, substantially as descrioed. t

' J. STEADMAN.

Witnesses:

J. B. Canon, T. M. WILSON.

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