US439951A - Thomas c - Google Patents

Description

(No Model.)

T. G. HENDEY. SWAGING MACHINE.

No. 439,951. PatentedNov. 4, 1890.

UNITED STATES PATENT OFFICE.

THOMAS C. HENDEY, OF TORRINGTON, CONNECTICUT, ASSIGNOR OF ONE-HALF TO THE COE BRASS MANUFACTURING COMPANY, OF SAME PLACE.

SWAGlNG-MACHINE.

SPECIFICATION forming part of LettersI atent No. 439,951, dated November 4, 1890. Applloa tion filed August-11, 1890- 1 Serial No. 361,707- (No model.)

useful Improvements in Swaging-Machines;

and I do hereby declare the following to be a full, clear, and exact description of the'invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to certain new and useful improvements in machines for swagin g and pointing wire, and has for its object to provide a machine of this description which shall be simple and durable in its construction, in which the parts which are subjected to wear shall be inexpensive and easy to replace; and it is, furthermore, an object of my invention to so arrange said parts that the amount of wear may be easily and certainly determined; and with these ends in view my invention consists in the details of construction and combination of elements hereinafter fully explained, and then recited in the claims.

In order that those skilled in the art to which my invention appertains may fully understand how to make and use my improvement, I will describe the same in detail, reference being had to the accompanying drawings, which form a part of this specification, and in which- Figure 1 is a longitudinal vertical section; Fig. 2, a transverse vertical section at the line y 'y of Fig. 1; and Fig. 3, a detail perspective of one of the hammer-blocks, the same having its roll partially withdrawn from its seat.

Like numerals denote the same parts in all the figures.

Referring now particularly to Figs. 1 and 2, 1 is a base or standard upon which the parts of the machine are supported, and2 is a shaft which extends longitudinally through the part 1 and is provided with any suitable driving device, as the band-wheel 3. At its front end this shaft has an enlarged cylindrical head 3*, in whose face is cut a transverse groove for the accommodation of a pair of dies at, which are adapted to have a slight sliding movement toward and away from each other. Upon either side of these dies are arranged hammer-blocks 5, which fit the groove, and each of which is provided with a seat 6, in which a hardened-steel roll 7 is so set that while its periphery projects beyond the face of the hammer-block it may not be removed from the latter except in the direction of its length. When thedies and hammer-blocks are arranged in the head, (see Fig. 2,) the peripheries of the rolls 7 project upon each side alittle beyond the periphery of the head. I have shown the dies and hammer-blocks as separately formed; but it is of course apparent that the rolls may be set directly in a combined die and hammer-block if that should be found advantageous. The front face of the standard 1 is provided with an annular recess considerably greater in diameter than the head 3 1 This annular recess is filled with a series of sectoral blocks 8, whichwhen fitted together, as shown in the, drawings, form a ring in which each supports the other, so that they are incapable of movement except in the direction of their length. By such movement, however, any one may be readily withdrawn for purposes of repair or the like. Each one of said blocks has a seat longitudinal of its inner face, like those shown in the hammer-blocks, and each seat contains a roll 9, whose periphery projects inward beyond the inner surface of the block. The circle described by the peripheries of these rolls when they are in position is slightly smaller than the circle described by the peripheries of the rolls 7 when turning with the head 3.

10 is a face-plate, annular in shape, which detains the blocks and rolls 8 9 in their proper position in the standard. 11 is a similar plate secured to the face of the rotative head for the purpose of holding the dies and hammer-blocks in their proper position in said head.

The operation of my invention is as follows: In the rotation of the head, as the roll 7 passes between each pair of opposed rolls 9 the latter will impart to the hammer blocks, through the rolls and thence to the dies, a momentary in ward squeezing movement, which is repeated dies.

was exposed to the repeated strokes was comparatively small. Thewearing of these'blocks, in addition to the expense of replacing, has been a constant source of annoyance from the fact that immediately the blocks became worn the machine would not produce work of the required gage, and it was difficult to secure the'accurate operation of the machine except by renewing both blocks. Furthermore, when the blocks were somewhat worn it has not been easy to determine their exact shortage, which has usually been made up by inserting shims between said blocks and the By the use of the hammer-blocks provided with the seats and carrying therein the rolls the contact with each pair of compressing-rollers is a rolling contact as to both parts. As the roll 7 is turned slightly at each contact, a very large surface takes the wear instead of a relatively small surface, as in the ordinary hammer-block. The roll inflicts no appreciable wear or injury upon its seat, and therefore when a rollbecomes worn or'broken a new one may be readily inserted without the trouble and expense of making a new hammer-block. These rolls are readily made in the shape of rods of considerable length, which are then cut and hardened.

Another advantage arising from the use of the hammer-blocks having the rolls seated therein is that the amount of wear that has taken place may be accurately determined by the fit of the roll inits seat,and this is of considerable practical importance.

The arrangement of the blocks8 and the rolls 9 is very advantageous for the reasons just set forth, and for the further reason that each roll instead of beinghung upon a journal or shaft is supported equally throughout its entire length, and will therefore wear longer and spring less than if journaled in any other way. The arrangement of the blocks renders the removal of any of them a simple matter, and the rolls may be taken out by simply sliding them endwise in their seats.

I claim- 7 1. In a-swaging-machine, the combination, with the rotating shaft, of the compressible dies and hammer-bl0cks,rolls seated in said hammerblocks and having their peripheries projecting beyond the faces of saidblocks,

and compression-rollers adapted to operate upon the dies through saidfirst-named rollers, substantially as described. 7

2. In a machine of the character described, the combination, with the rotative head, of the dies and hammer-blocks seated therein, each hammer-block provided with a seat 6 and a roll 7, fitted and adapted to move in said seat, substantially as set forth.

3. In a machine as described, the combination, with the revolving shaft, of the recessed standard, a series of sectoral blocks arranged within said recess, and a roll mounted and adapted to rotate in each of said blocks, substantially as described. 4. In-a swaging-machine, the combination of the rotative head, the dies and hammerbloeks, the rolls '7, seated in saidhammerblocks, the blocks 8, arranged around the head, and the rolls 9, seated in said blocks.

In testimony whereof I affiX my signature in presence of two witnesses. V

' THOMAS C. HENDEY.

Witnesses:

SHERMAN HARTWELL HUBBARD, M. O. HINOHCLIFFE.

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