US594845A - Charles beaumont - Google Patents

Description

(No Model.)

0. BEAUMONT. HAIR PIN MAKING MACHINE.

Patented Dec. 7, 1897.

Witnesses? Imuew to r manly W mum UN TED STATES PATE T @rricn.

CHARLES BEAUMONT, OF ROUBAIX, FRANCE.

HAlR-PlN-IVIAKING MACHINE.

SPECIFICATION forming part of Letters Patent N 0. 594,845, dated December 7, 1897.

Application filed September 10, 1896. Renewed November 9, 1897. Serial No. 657,977- (No model.) Patented in England December 12, 1894, No. 24,145.

To all whom it may concern.-

Be it known that I, CHARLES BEAUMONT, a citizen of the United Kingdom of Great Britain and Ireland, residing at Roubaix, in the Department du Nord, France, having invented certain new and useful Improvements in Hair-Pin-Making Machinery, (patented in Great Britain December 12, 1894, No. 24,145,) of which the following is a specification.

This invention relates to machines used in the construction of hair-pins, but is limited more particularly to devices and appliances to be employed in conjunction with the ordinary mechanism of such machines for the production of specially-shaped heads or points such, for example, as ball-points.

The wire may be fed to the machine and severed by any usual and suitable devices, such as are commonly used and known. Each length as it is fed is received between a pair of jaws which can be reciprocated in a direction at right angles with the axis of the wire. The jaws are then closed and are moved forward until the wire in the jaws is in direct line with two reciprocating dies, which close upon the projecting ends of the wire in the jaws and form the desired points. The force exerted by the dies may be sudden, like the blow of a hammer, but it is preferably exerted more gradually, as hereinafter described. After the points have been formed the jaws open and return to their original position for the reception of a new length of wire, the wire already pointed having fallen out immediately upon the separation of the jaws.-

The pointed wire blank is received in a hopper or receptacle below, and is finally bent to the finished shape by ordinary means.

I will more particularly describe my said invention with reference to the accompanying drawings, in which- Figure 1 represents a plan. Fig.'2'shows in a group a series of cams which are connected with the main shaft of the machine.

The wire w is fed transversely by the reciprocating slide A, which carries a device or appliance such as is usedin other similar machines for carrying the wire in one direction only-that is to say, in the direction of the feed. This slide is reciprocated by the lever B, adjustably fulcrumed at b, and actuated by the cam O. The length of the wire blank cut off is determined by the length of the stroke of the lever B, which is fixed by the position of the fulcrum b.- The wire having been fed forward to the full length, the reciprocable rod D advances and jams or grips the wire, so .that it cannot be returned by the retreat of the slide. This rod is actuated by a cam, such as 1, separately shown in elevation in 2, in which figure the other cams used in the machine are similarly represented. WVhile the wire blank is held by the end of the rod D, it is out off by the knife E on the end of the lever F, fulcrumed at f and actuated by the cam 2.

As the wire is fed forward by the slide A it enters between the jaws J J, which are separated to such a distance apart as to permit the wire to enter freely. The jaws have such a length as will be equal to the length of the wire blank between the points after they have i been produced. In other words, the jaws must permit sufficient Wire to project at each end to form the points required. If required, the points where the wire is in contact with the ends of the jaws may be countersunk or otherwise shaped, so as to help the dies in the formation of the points. One of the jaws J is fixed upon its slide,-while the other is capable of a small amount of motion apart from the other, so. as to separate the jaws sufficiently for the free feeding of the wire. The slide G, on which the jaws are mounted, is reciprocated longitudinally by means of the rod H, which is actuated by the cam 3. This cam has three diameters a: y 2, as shown by Fig. 2, and at the moment of feeding the wire the rod or a projection therefrom'is in contact with the smallest diameter x. When the wire has been fed between the jaws and gripped and out, the cam, by its rotary motion, brings its next larger diameter in contact with the rod H, and thus closes the jaws upon the Wire. The continuation of the rotation of the cam next brings itslargest diameter to act upon the rod H, whereby the slide G is pushed forward until the Wire in the jaws is in line with the reciprocating dies I 1, which then close upon the ends of the wire and produce the desired form of points. The motion of the cam now causes the jaws to open and to return to their original position, the pointed length of wire dropping out into a hopper or receptacle below. A new length of wire is then fed and the cycle of operations is repeated.

The dies I I are operated from the cam 4, Fig. 2, by means of the slide K, which acts upon the bell-crank lever L, f ulcrumed at Z, the other end of which actuates the recipro' eating rod M and through it the lever N, fulcrumed at n.

The point-forming dies are carried on the opposed ends of the slides O O, which are respectively arranged with their centers exactly in line with the wire in the jaws when presented for the formation of the points. The slides are pressed toward the wire ends by adjustable stops or screws P P in or upon the levers L N, and are consequently moved simultaneously, so that both heads or points are formed together.

Having now particularly described and as- 1 scribed.

In testimony that I claim the foregoing as my invention I have signed my name, in pres ence of two witnesses, this 30th day of July, 1896.

' CHARLES BEAUMONT.

\Vitnesses:

HENRI VANDENBULCKE, ABEL OARETTE.

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