US300159A

US300159A - Bending-machine

Info

Publication number: US300159A
Authority: US
Publication date: 1884-06-10
Anticipated expiration: 1901-06-10

Description

(No Model.) 2 Sheets-Sheet 1.

. W. W. sToKng.

BENDING MACHINE. No. 300,159. Patented June 10, 1884 WITNESSES: INVENTOR I I I 4 Q ATTORNEYS.

(No Model.) 2 Sheets-Sheet 2.

W. W. STOKES.

BENDING MAGHINE.

No. 300,159. Patented June 10, 1884.

ATTORNEYS.

WITNESSES UNTTED STATES ATENT Tries.

W'ILLIAM VVA TSON STOKES, OF ANN A, ILLINOIS.

BENDlNG--MACHINE.

SPECIFICATION forming part of Letters Patent No. 300,159, dated June 10, 1884.

Application filed January 28, 1884. (No model.) I

To aZZ whom it may concern;

Be it known that 1, WILLIAM W. SroKEs, of Anna, county of Union, Illinois, have invented a new and Improved Bending-Machine, of which the following is a full, clear, and exact description.

My invention consists of an improved contrivanee of bending-levers, anvil-block, adjustable formers, and a gage whereby it is designed to provide a simple and efficient machine adapted for the use of blacksmiths, carriage-makers, and other iron-workers to bend stirrup, clip, and other irons by hand,- all as hereinafter fully described.

Reference is to be had'to the accompanying drawings, forming part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure 1 is a perspective view of my improved bending-machine. Fig. 2 is a side elevation of the pivot-bolt and section of a sleeve employed for the pivot of the principal bending-lever. Fig. 3 is a side elevation and section of the washer employed for the pivot of the secondary lever. Fig. 4 is a side elevatron of a former to be used on the principal bending-lever. Fig. 5 is a plan view of the bending-machine, showing the manner of bending a clip. Fig. 6 is a plan view of the machine, showing the manner of bending a bar into an obtuse angle; and Fig. 7 is a plan of the machine, showing the manner of bending a bar into two reverse right angles.

I construct a suitable bed-plate, a, of meta with three parallel slots, b c, and d, and lo cated with relation to eachother as shown, or substantially so, for the purpose of adjustably connecting the working parts. I also provide said'bed-plate with an anvil-block, e, and a gage-bar, f, both of which are firmly attached to said bed-plate; and the gage-bar has a shifting gage-stop, g, fitted to it for being set on said bar at any point for gaging the distance of the bends from the ends of the bars.

Alongside of the anvil-block e, I arrange a former-block, 71, having one square end, i, and one half-round end, j, and I secure the same with a bolt, is, nut Z, and washer m, so as to bind it fast to the bed-plate either parallel with the anvil-block e, as in Figs. 1, 5, and 7, or obliquely to it, as in Fig. 6, the bolt 70 ex tending down through the bed-plate and drawing against the under side of the said plate. I use a square washer for this bolt and construct it with a rib, 0, Fig. 1, on the lower side as wide as the slot at through the former,

for the bolt to projectinto the slot for bind:

ing the block more firmly and preventing the washer from turning with the nut.

I propose to employ formers h of different forms and sizes,according to the different forms and sizes of bars and the bends to be made in them, said forms to be changed at will by removing the nut Z and washer m,- and in order to prevent the bolt 70 from dropping out of its place-while changing the formers, I propose to provide akeeper consisting of a small plate, 10, through which the bolt passes, and whichI fit into the slot 1;, so that it will not drop out, by wedging it fast in said slot or securing said plate therein by any other means. The bolt is is made square or with flat'sides in the parts fitting the slot b of the bed-plate and the slot n of former, to effectually prevent the former fromturning by the stress on it of the bars being bent.

In the slot (Z, I fit a pivot-bolt, q, for the fulcrum-pivot of the main bending-lever 8, said bolt being adjustable along the slot for locat- -when worn loose.

A short distance along the lever s from the pivot-bolt g said lever is recessed in the lower side to receive the forming-block u and the lever o between it and the surface of the bedplate, and said lever also has a vertical longitudinal slot, 10, along it a suitable distance from the shoulder of the recess, for inserting the bolts 00 and y, which connect the lever and former a, respectively, to the lever s. Said bolts are flat-sided in the parts passing through the slot 10 of lever s, to prevent them from turning; but the pivot-bolt w of the lever o is round on the part on which said lever turns, and it has a small countersunk head, 2, to enter the hole of the lever flush with the under side, and allow the lever to work against the surface of the table. The former a is to be set close to the end of lever 11 when said lever is set at a distance from the shoulder a, and is used for bending a bar around former 71., and forms an adjustable prolongation of the side wall of lever 3 back of the shoulder a, which prevents the bar from bending into the cavity behind the ends of the lever 12, as it would in bending around the angle of former it without said former a; but said former a is more particularly employed when a reverse angle is to be made, as represented in Fig. 7, the lever 11 being thus disconnected from lever s and connected to the bed-plate by inverting it and passing its bolt .00 through the slot 0. In such use of the machine the pivot-bolt q ofthe lever s will be shifted along more to the back edge of the bed-plate, for enabling said former a to be suitably placed with relation to former h. \Vhen the bar is to be bent in the form of a clip, as in Fig. 5, or into an obtuse angle, as in Fig. (i, the former a will not be used. It will be seen that the lover 8 bonds the bar 1) around to the end of former 7L, and then the lever 12 bends it around to the'side of said former for making clips, or around the former a to make the reverse angles, as the case may be.

The lever 5 may be fastened to the bed by shifting its bolt q tothe slot 0, when it may be desired. The bed a. will have a strong lug formed on the under side, suitably for fasten- 1ng it to a strong bench such as represented in Fig. 1.

Having thus described my invention, I claim as new and desire to secure by Letters Patentl. The combination of the anvil e, former h, and lover s, with a bed-plate, a, having slots 1) 0, said former h having a slot n, for its fastening-bolt, and said former and lever being adjustable along the slots of the bed-plate, and former h'being adapted to be set obliquely to the anvil-block, substantially as described.

2. The combination of the anvil-block e, adjustable former h, and lever s, with bed-plate (0, having slots 1) and 0, and the lever 1), said lever 11 being pivoted to and adjustable along.

lever s. substantially as described.

3. The combination of the anvil-block 6, adjustable former h, lever s, former a, and lever r, with the bed-plate a, having slots Z) c (1, said lever c and former a being adjustably connected to said lever s, and said lever 8 being removable to and connectable in slot 0, substantially as described.

l. The combination of the bed-plate a, anvil-block 0, adjustable former h, levers s and c, and the gage-bar f and adjustable stopgage g, substantially as described.

JAMES DEWI'lT, J. G. WVILLOUGHBY.