US678637A - Nippers, pliers, &c. - Google Patents

Description

Patented July 16, I906 W. A. BERNARD.

NIPPERS, PLIEBS, 8L6.

(Application filed Dec. 26, 1900.)

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NJlTED STATES V PATENT CFFlCEl i \VILLIAM A. BERNARD, OF NEW HAVEN, CONNECTICUT, ASSIGNOR TO THE WILLIAM SCI-IOLLHORN COMPANY, OF SAME PLACE.

NIPPERS, PLIERS, &.c.

SPECIFICATION forming part of Letters Patent No. 678,637, dated July 16, 1901.

Application filed December 26, 1900. Serial No. 41,031. (No model.)

To 60% whom it may concern:

Be it known that I, WILLIAM A. BERNARD, of the city and county of New Haven, in the State of Connecticut, have invented anew and useful Improvement in Nippers, Pliers, and Similar Tools, of which the following is a full, clear, and exact description when taken in connection with the accompanying drawings, which form a part thereof, and in which- Figures 1 and 2 represent side elevations of nippers embodying my invention, the nippers being shown in their open and closed positions, respectively; Fig. 3, a top view of the nippers. Figs. 4 and 5 represent the two cross-levers of the nippers; Fig. 6, a detail View of one of the connecting plates or links, and Fig. 7 a modification in which the jaws are shown as end nippers.

In all figures similar letters of reference represent like parts.

This invention relates to nippers, pliers, and similar tools, and has for its object the construction of a novel, efficient, and simple connection between the cross-levers" forming the tool, as more fully set forth and claimed hereinafter.

Referring to the drawings, the parts designated by the letters A and B represent the handles of the cross-levers and letters C and D the jaws thereof, the jaw C being formed rigidly or integrally with the handle A and the jaw D with the handle 13.

E and F represent links fitting on the outside of the levers at or near the point of cross- 3 5 ing. (Herein shown as side plates.) Each link is pivoted near the jaw end to each of the levers separately by rivets, screws, or pins G or H. The pivotal points are nearer the forward end of the jaw than the point of crossing of the two lovers. As shown more particularly in Figs. 3 and 6, each lever is recessed on one side, as at K, near its point of crossing, for the reception of the other lever in well-known manner.

Shortly in front of their recesses the levers are provided with a tongue-and-slot connection 0 and d, whereby the rotary movement of one lever, as A C, on its pivot H would be communicated to the lever B D, and, as shown 50 in the Fig. 1, upon the opening of the jaws they both describe the same relative angle to the central longitudinal axis of the plate or link.

By this construction, among other advantages, it will be seen that the fulcra of the levers A C and B D, which are at G and H, are in advance of the crossing-point of the lovers, where the fulcrum is located in ordinary cross-lever pliers or nippers, and therefore nearer to the operative portion of the jaws, so that a greater leverage is obtained. At the same time each lever may, as heretofore, be formed of a single piece of metal forming both the jaw and handle.

As shown in Figs. 1 to 4, the jaws C and D may be formed with corresponding recesses L and M, extending nearly acrossthe width of the jaws on their meeting faces near the fulcra of the levers. The slots L and. M terminate in cutting-blades land at in each jaw. Wire or other articles may be cut by the blades Z and m with greater ease, as it may be placed nearer the fulcra G and H, so that enormous leverage is exerted.

A modification is shown in Fig. 7 wherein the jaws R and S are in the form of end nip pers,the remainder of the tool being the same as above described.

The forward ends of the jaws may be provided with fiat gripping-surfaces for use as pliers, and at the inner ends of the handles A and B, near the crossing portions of the levers, two corresponding parti-circular slots 0, one in each handle, may be located for gripping two or more pieces of wire for splic ing or other purposes. Each of these slots exceeds in length the diameter of a single wire and reaches beyond the axes of the two wires when placed in juxtaposition sufficiently to force the two wires together by the 0 curved sides of the slots bearing on the outer sides of the wires, as illustrated. By this means the two wires are not only held stationary for splicing, but are forced into close contact with each other, and, moreover, a 5 large wire may thus be held forsplicing with a smaller wire, if desired.

I do not intend to limit myself to the exact details of construction shown and described above, as different forms of jaws may be used and the cutting edges, if present, may be variously located; but

What Iclaim, and desire to secure by Letforming a handle and jaw; of side plates or ters Patent, islinks pivoted to each lever separately; and a 1. In nippers, pliers, and similar tools, the tongue-and-g-roove connection between said combination with cross-levers; of a link or levers, substantially as described.

5 links pivoted to each lever separately, and In witness whereofI have hereunto set my I 5 an engagement between said levers for comhand this 22d day of December, 1900.

municating the rotary movement of each 10- WILLIAM A. BERNARD. ver to the other, substantially as described. Witnesses:

2. In nippers, pliers, and similar tools, the M. OLIVE WILLIAMS, 1o combination with cross-levers, each lever SAMUEL H. FISHER.

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