US1098501A - Electric-wire connection. - Google Patents

Description

H. H. HOLDAWAY & A. G. GANDLAND.

ELECTRIC WIRE CONNECTION.

APPLICATION FILED MAY 20, 1912.

1,098,501, Patented June 2, 1914.

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ELECTRIC-WIRE CONNECTION.

Application filed May 20,

Specification of Letters Patent.

Patented June 2, 1914.

1912. Serial No. 698,640.

To all whom it may concern:

Be it known that we, HALL H. HOLDAWAY. and ARTHUR C. CANDLAND, citizens of the United States, and residing at Salt Lake .City, in the county of Salt Lake and State of Utah, have invented certain new and useful Improvements in Electric-Wire Connections, of which the following is a specifica- Our invention relates to electric connections and has for its object to provide a de vice for connecting pliant wires, over which electrical energy is to be transmitted, to prevent said wires from twisting, breaking or becoming entangled; and particularly refers to a connect-ion in the electric wires between the receiver and the instrument of a telephone system, whereby the receiver may be used without the connecting wires becoming twisted or tangled.

These objects we accomplish with the dcvice illustrated in the accompanying drawings in which similar letters of reference in dicate like parts throughout the several figures and as described in the specification forming a part of this application and specifically pointed out in the appended claims.

Figure 1 is an enlarged view in elevation of our device used as a splice or connection in the wires. Fig. 2 is a longitudinal section through the same. Fig. 3 is a transverse section on line :12 w of Fig. 1. Fig. 4 is a transverse section on line y y of Fig. 1. Fig. 5 is an elevation of the device as used in a telephone system.

In handling mechanical devicesor apparatuses in which electrical energy is used, and where the wires over which said electric energy is transmitted are pliant, said wires frequently become twisted and entangled to such an extent as to injure them and delay the operation of the devlce or apparatus. In the moving of desk telephones and in using .the receiver of a great many other teletated without any twisting of the connecting wires. To do this we have provided an electrical connection of a swivel nature consistmg of a receiving tip A and an entering tip B. Said tip A consists of a cylindrically shaped metallic member 1 to which one of the electric current carrying wires 2 is connected, preferably by a soldered joint. A portion of the inner side of one end of said member 1 is cut out forming a shoulder 3. An insulating sleeve 4 is secured within said member 1 and within said insulating sleeve t is secured a metallic drum 5, within which drum a piston 6 is operated. A piston rod 7 is secured within the head of an adjacent drum 8, which in turn is secured in said tip B. To the head of said drum 5 is secured the other current carrying wire 2. Between the piston 6 and the other head of said drum 5 and carried on said rod? is a spiral spring 9. An insulating guard 10 is fitted within the end of said member 1 and carried on the said wires. Said tip B consists of a metal cylinder 11, having a shoulder 12 out there around, thereby forming an extended lip 13 which is made to engage within said cylindrically shaped member 1. Within said cylinder 11 is provided the insulating sleeve 14 which carries therein a drum 8. One of said wires 2 is electrically connected with the head of said drum 8. The other head of said drum 8 is held in electrical contact with the drum 5, in the said tip A, by means of the spiral spring 9. Said cylinder 11 is connected with the other current carrying wire 2 preferably by soldered joint. The piston 6 with its rod 7 and spring 9 holds said drums 5 and 8 contiguous and in lateralcontact forming an electric connection of-wires 2 and at the same time members 1 and 11 are telescoped as far as the shoulders 12 and 3 and are held in electrical contact by the tension of said springs 9. The electric con tact continues and the current passes as long as said lip 13 is telescoped within said member 1 The said spring 9 is made suliiciently strong to hold said members 1 and 11 so telescoped with the ordinary use or strain on said wires 2 and 2, thereby forming a swivel connection in said wires permitting either end to be rotated without injury or twisting of the other end.

While the device is small and the material of the lightest commensurate with its uses,

I the weight will be such as to hold the wires straight and free from entanglement.

As will be obvious our device may be used in any place where electrical contact and connection must be maintained in pliant wires that are liable or have a tendency 'to twist or become entangled.

Having thus described our invention we desire to secure by Letters Patent and claim:

1. A swivel connection for pliant current carrying wires, consisting of a current carrying cylindrically shaped member; an insulating sleeve therein; a currentcarrying. drum w1th1n sald sleeve; apiston within said hold said drums contiguous and said lip portions of one of said current carrying members Within the other.

2. A swivel connection for pliant current carrying Wires, consisting of two hollow current carrying members partially telescoped; a drum ineach of said current carrying members insulated from and rotatable therewith; a piston operative in one of said drums and contacting with the interior wall j thereof to form an electrlc connection; a rod having one end fastened to the head of the other of said drums and the other end secured'in said piston; and a spiral spring carried on said rod to hold said drums normally contiguous.

In testimony whereof we have aflixed our signatures in presence of two witnesses.

HALL H. HOLDAWAY. ARTHUR O. CANDLAND.

Witnesses:

SAM RANEY,

P. T. WILSON.

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