US972319A - Cable-controller for electrical apparatus. - Google Patents

Description

R. J. F. S. BARON. CABLE CONTROLLER FOR ELECTRICAL APPARATUS.

APPLICATION FILED JAN.23,19OB.

972,319. Patented Oct. 11,1910.

3min JOSEPH rneivcors SAMUEL BARON, or rams, rmon.

CABLE-CONTROLLER FOR ELECTRICAL APPARATUS.

Specification of Letters Patent. Patented Oct. 11, 1910.

Application filed January 23, 1906. Serial No. 297,507.

To all whom it may concern:

Be it known that I, Rnxii JOSEPH F RAN- gois SAMUEL Bsaox, ,a citizen of the Republic of F ranoe, and residing in Paris, F rance, have invented a certain new and useful Cable-Controller for Electrical Apparatus, of which the following is a specification.

This invention relates to a movable drum on which are wound up, without taking up too much space, the electric wires connecting a line or a circuit to a lamp, telephone or other electric apparatus, for the purpose of enabling this apparatus to be moved within a larger radius, without the unutilized portion of the wire being in the way. This movable drum is placed-against the ceiling or any other fixed partition. It allows the wire to be unwound under the action exercised for moving the electric apparatus, and to be automatically wound up, as soon as the apparatus is replaced under the action of the winding-up spring arranged in the drum. In the event of the drum being arranged atthe ceiling of a room, it can be used instead of the suspension arrangement in which balance weights are employed, and enables lamps to be moved vertically, and out of the vertical, within a large radius.

In the accompanying drawing it has been assumed that the movable winding-up a-nd unwinding drum is applied to lamps for lighting, although it could be equally well applied to telephones and bells.

Figure 1 shows in vertical section through the axis an electric lamp suspended below a movable drum fixed to the ceiling. The lamp L is shown in elevation in vertical position. Fig. 2 is a plan of the movable winding and unwinding drum. Fig. 3 is a vertical section of the casing on line a; a: Fig. 2 showing the arrangement of the curved guide bringing the electric cable from the horizontal to the vertical position. Fig.

4 is a plan of said casing seen from the upper part.

The movable drum is covered by a stamped or molded cap 1 secured to the ceiling. The drum is constituted by a circular central chamber 2 in which is mounted a spiral spring 3 one of the ends of which is secured to the drum and the other to the central spindle i. The spindle of the drum Around the spring chamber 2 the drum is provided with metallic checks 6 between which is wound the cable 7 consisting of in sulated wires conveying the electric current.

The hollow central spindle 4c is welded at the top of a hollow truncated projection 8 fixed in a. central circular groove of the casing 1; this projection is cut at 9 on a portion of its outer surface in order to provide a passage for a curved guide 10, traversed by the cable 7 and having a diameter a little larger than the cable. The upper part of said curved guide 10 ends horizontally between the cheeks 6 of the drum and its lower vertical part ends a little above the lower part of the casing 1; this curved guide which is counter-bent at its lower part is welded to the innerwall of the casing 1; it descends gradually and comes out at the end of the casing opposite to the axis of the lower exit opening of this casing 1. Owing to its curved shape, the conduit serves as a brake when the lamp L is suspended and stops it at any point of its descent.

On the upper surface of the ebonite cheek 6 are secured two concentric metallic circles 11 and 12 which are thus insulated. Against each of these circles rests a metallic tongue 13 or ll. At each of the circles or rings 11 and 12 there terminates the end of one of the electric wires constituting the wound-up cable 7, and each contact tongue 13 or ll is connected either direct or by means of a separate terminal 15 or 16 which placesit into communication with the circuit wire. The cable 7 in traversing the counter-bent guide 10 bears against its various curves so that the friction exercised by the guide 10 on the cable '7 suflices to relieve the lamp L from the action of the rolling up spring 3 and allows of its being stopped automatically at any point of its descent without using a stop device. In order to increase the force of the brake action of the guide 10 it is sufficient to increase its length without changing the points where the mouth-pieces of its extremities end.

In the construction illustrated in Figs. 1 and 2 the power of the spring 3 bringing about the automatic winding-up, is regulated in such manner that the weight of the lamp L and of its fittings should not produce alone either the winding or unwinding of the cable 7. The unwinding is then obtained by a pull exercised by hand by pulling a sleeve E arranged above the lamp L, and the windin is obtained b sli htly raising the lamp L for slackening the cable 7 which being thus relieved, no longer acts as a brake in the guide 10 and is immediately drawn back by the spring 3 and wound up between the checks or stands 6. At any point a: of the cable 7 can be secured a stop of a larger diameter than that of the hole made in the socket 8 for the purpose of preventing the cable from being drawn in beyond the said stop when fitting up the lamp.

What I claim as my invention and desire to secure by Letters Patent is In a windin up device for an electric cable, the comb1nat1on of a casing, a hollow vertical spindle within said casing, a winding-up drum for the cable arranged in the casing and loosely mountedabout said hollow spindle, a spiral spring arranged in the central chamber of the drum, one of the ends of said spring being secured to the drum and the other to said hollow spindle, two concentricmetallic circles secured outwardly in cable and serving to the upper cheek of the insulating material of the drum, means for connecting said circles respectively to the wires composing the cable, two metallic friction devices terminating respectively on each of the concentriccircles and being adapted to distrlbute the current of the electric circuit to the wires of the cable, and a curved counterbent guide secured to the inner wall of the casing, said guide bein i e it from the horizontal position whic it occupied on the drum, to the vertical position 1n rolongation of the hollow spindle, and a o acting as a brake upon the cable In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

RENE JOSEPH FRANQOIS SAMUEL BARON.

Witnesses:

ALBERT MAULVAULT, Hanson C. Coxn.

traversed by the

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