US430974A - Electric connection - Google Patents

Description

(No Model.) 2 Sheets-Sheet 1.

H. S ANGHE. ELECTRIC CONNECTION.

No. 430,974. I Patented June 24, 1890.

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film? UNITED STAT S PATENT OFFICE.

HERCULES SANCI-IE, OF DETROIT, MICHIGAN ELECTRIC CONNECTION.

SPECIFICATION forming part of Letters Patent No. 430,974, dated June 24, 1890.

Application filed December 9, 1889- Serial No. 333,100. (No model.) i

To all whom it may concern:

Be it known that I, HERCULES SANOHE, a citizen of the United States, residing at Detroit, county of WVayne, State of Michigan, have invented a certain new and useful Improvement in Electrical Connections;v and I 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 pertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification.

In the drawings, Figure 1 shows my invention applied as a binder or connection to an ordinary pole-piece, said pole-piece being in the nature of a block or hand-piece with the extreme end closed and with the entering cable shellackcd about the point of entrance to preserve the fabric or covering of the wire from the effects of moisture. Fig. 2 shows a similar construction, except that the extreme end is opened. Fig.3 shows its use in connection with a long pole-piece. Fig. 4. illustrates the same in connection with a polepiece which is itself charged upon its inte-. rior with filling material: Fig. 5 illustrates the same appliance in connection with a pad such as may be employed in belts or bracelets designed for use in connection with an electric current led to it by a line. shows how it may be used for uniting two meeting ends of stiff wire and avoid the necessity of twisting the wire, there being a screw-threaded swivel interposed between the terminals at the ends of the wire, so that by turning the parts of the swivel in opposite directions each part may be screwed to its adjacent terminal without twisting the wire. Fig.7 shows its application as a terminal for the meeting ends of flexible wires, where they may be twisted slightly without injury to them. Fig. 8 shows the same adapted for the binding-postof any electrical instrument and adapted to accommodate several wires. Fig. 9 shows the same, illustrating how it may be connected with a plate, and the latter in turn connected to an electrical instrument and constituting a binding-post. Fig. 10 shows a variation in which the device is adapted as a binding-post for electrical instruments in ing to the part beneath it by a commonbinder Fig. 6.

at the top of the post. Fig. 11 is a view illustrating how the cable covering or fabric is united to the cable at the point where the fabric is severed so as to prevent its unravel-- ing, the same being shown in connection with stiff wire. Fig. 12 is a similar view showing the same in connection with a flexible wire cable and illustrating how the fine wires of the cable are beyond the fabric wrapped with wire to bunch and confine them and to make various applications of electricity for burglaralarms, medical instruments of various kinds,

and the like-the ends are very apt to project 1 and are unsightly and liable to catch upon the fingers or the clothes. Again, each time the circuit is broken the wire has to be unwound or untwisted, and is thereby generally injured or broken. Again, where a cable is employed composed of fine wire's-as, for instance, like those connected with the polepieces orhand-holdsin the variousinstruments used by the medical profession, or for connecting the ear-pieces of telephones to the telephone-box, and the like--the silk or worsted or other fabric with which the wire is wound or insulated has to be cut away to bare the terminal end of the cable wires. They are thus loose, and they rapidly unravel and become unsightly and do not serve to afiord the cable the necessary insulation and strength at the point of union. Again,the small wires themselves become tangled and disarranged and are exceedingly annoying to handle, not only by reason of pricking the fingers, but

because they are not sufficiently stiff to hold in the binding-post.

It is the purpose of my invention to pro-- duce a terminal adapted for connection to a binding-post, or serving directly as abindinginsulation winding of silk, worsted, or fabric.

B is a terminal designed for permanent connection with the end of the insulated wire.

B is a screw-shank, and Z) is an orifice through which the wire is passed, so that its free end may be wound about this shank.

B is a companion piece into which the shank B is screwed. Either the terminal B or the companion piece B is hollowed out sufficiently that when one is screwed down upon the other the end of the wire is completely housed and hidden from view. By winding or coiling the wire A around the shank B, as shown, it is made to expose a larger surface to the companion piece B This companion piece in Fig. 1 is simply a knob, which, together with the terminal B, constitutes a polepiece with its extreme end closed. In Fig. 2 there is precisely the same construction, except that the screw-shank passes into an orifice which extends through the block or companion piece. In Fig. 3 there is a like construction, in which the terminal B is engaged with a long pole-piece or companion part B In Fig. 4 there is a similar construction, in which the companion piece B is itself a polepiece, but is made hollow for the purpose of receiving a charge of exciting or other material upon its interior. In Fig. 5 the same is shown as applied to the pad of an electric belt or bracelet designed to be .worn upon the surface of some part of the body, the companion piece being made permanent with the pad, or the base to which the pad is attached. In Fig. 6 there is a similar construction designed for uniting the two meeting ends of the wire,the companion piece in this instance being two central portions B B swiveled together at b This form is particularly convenient, since it enables a union to be made of the two meeting ends without twisting either end, it being only necessary to turn eitherof the swivels B in order to engage its thread-socket with the threadshank B of its adjacent terminal. This same connection (shown in Fig. 6) is also of great value for connecting two ends of wire where the wire is apt to be twisted, for any tendency to twist the wire will simply cause the connection to turn about its swivel freely. This connection for the two ends of the wire may be made either with the swivel or withenter a corresponding screw-socket in the companion piece of the adjacent terminal.

This invention is equally applicable for the permanent or stationary binding-posts upon the various forms of electrical machines and apparatus. Thus, as shown in Fig.8, each wire has its own terminal and companion piece, and when it is desired to connect it with the binding-post C it is only necessary to drop it over the end of the binding-post and screw down the jam-nut 0 upon it. is equally well adapted for connection to a plate D, as shown in Fig. 9, in which event the'terminal may be bound to a plate, either as shown in Fig. 8, or by a. screw passed down through the top into the plate, as shown in V Fig. 9. Of course the form of the device may be somewhat varied. Thus, instead of their being a terminal at the end of the wire connected permanently with its companion piece, there might, as shown in Fig. 10, be simply a terminal piece alone, and these terminal pieces might be dropped over the binding-post and be bound to adjacent terminals or to the post itself without any companion piece.

In order to prevent the insulation winding from unraveling at the point where the wire is bared, I wrap the same with fine wire, as shown in Fig. 11. This binds the fag ends of the fabric or winding firmly to the wire, so that it is made perfectly secure at this point. This drawing, Fig.11, shows the said construction in connection with a single stiff strand of wire; but in Fig. 12 it is shown. as applied to the fine wires at the end of the flexible wire cable. In this latter case I carry the winding along to the end of the said fine wire strands, not only to hold them together, but also by thus bunching them to make this bared end of wire sufficiently stiff in the nature of a thick strand of wire to hold its own within the binder or terminal. I would have it understood that this arrangement of the ends of the wires or wire cables is particularly applicable in the devices which are hereinbefore described; but I would not limit myself to their use in connection with said devices, for they are equally applicable and valuable in connection with any form of binding-post or fastening. Wherever it is necessary or desirable, the wire cable may, as shown at a in Fig. 1, be treated with shellac at the point where it enters the fastening or terminal piece to protect it against the effects of moisture.

which is desired to be perfectly taut withoutv twisting the wire, since the ends of the wire may be engaged to the two end pieces and these latter drawn together by the. turnbuckle swiveled toone end piece and the screw attached to the other.

What I claim is- 1. The combination of the perforated ter-- minal piece B, provided with the shank B,

the companion piece B engaged with said shank, and the wire or cable A, passed through the perforation in the terminal piece and coiled around its shank, substantially as shown and described.

2. The combination, with the meeting ends of wires or wire cables, of a terminal piece and companion piece on the end of each wire, shanks connecting; each terminal to its companion piece, the ends of the wires being coiled around said shanks, and a connection between the two companion pieces, substantially as described.

3. A connection for the meeting ends of wires or wire cables, the same consisting of a terminal piece for each wire, through which the wire is passed, and two companion pieces swiveled together, each said companion piece provided with a screw engagement whereby it is united with its corresponding terminal piece, siibstantially as and for the purposes described.

In testimony whereof I sign this specification in the presence of two witnesses.

HERCULES SANG-HE. Witnesses:

W. 1-1. OHAMBERLIN, (J. J. SHIPLEY.

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