US1169382A - Bridge for electrical conductors. - Google Patents

Description

L. W. CROMPTON & E N. OLIVER. BRIDGE FOR ELECTRICAL CONDUCTORS.

APPLlCATION iLED 050. I8, 1914.

1,169,382. Patented Jan. 25, 1916.

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I 51M 14 oz w"? HQ mm t UNITED STATES PATENT orrion LIONEL W. CROMPTON AND EARLE N. OLIVER, OF TAMPA, FLORIDA.

BRIDGE FOR ELECTRICAL GONDUCTORS.

Specification of Letters Patent. I Patented J an. 25, 1916.

Application filed December 18, 1914. Serial No.'877,935.

T 0 all whom 2'25 may concern:

Be it known that we, LIONEL W. CRoMPToN and EARLE N. OLIVER, citizens of the United States, residing at Tampa, in the countyof Hillsboro and State of Florida, have 1nvented certain new and useful Improvements in Bridges for Electrical Conductors, of which the following is a specification.

This invention, animproved bridge for electrical conductors, is designed primarily for use on open cleat or molding work.

The object of the invention is to provlde a simple, practical and efficient means for carrying or conveying an electrical circult over a point, where, if not properly insulated, a ground or short circuit might be produced.

The invention also contemplates a novel means for fastening the circuit wires or conductors to the bridge.

The above and additional objects are ac complished by such means as are illustrated in their preferred embodiment in the accompanying drawings, described in the following specification and then more particularly pointed out in the claims which are appended hereto and form a part of this application.

In describing our invention in detail reference will be had to *the accompanying drawings wherein like characters denote like or corresponding parts throughout the several views, and in which Figure leis a perspective view of the improved bridge; Fig. 2 is a longitudinal sectional view; Fig. 3 is a top plan view of one of the bridge sections, its associatedretaining plate having been removed; and Fig. 4: is an end elevation of the section illustrated in Fig. 3.

Before proceeding with the description of the drawings, we desire to call particular attention to the fact that while we have evolved our invention with reference toits use on open cleat and molding work, the same may b readily utilized in a like capaclty wheresoever susceptible.

Referring now to the drawings by numerals, 1 and 2 designate, as an entirety, the respective bridge sections, eachsection con;

sisting of a body portion 3 (preferably porcelain) longitudinally grooved or recessed aslndicated at 4 for the reception of the retaming plates 5,-the top face of each plate be ng flush with the top of the body 3. Any suitable fastening means such as is indicated at 6 may be provided to removably fasten the plates 5 in place. Each section .of the bridge is provided with one or a plurality of longitudinal grooves 7 open to the recess 5, the several grooves being adapted to receive the conductors 8 which are to be bridged or carried across one or more metal pipes or like conductive material by the sections 1 and 2, when assembled.

As shown to advantage in Figs. 1 and 2, the sections of the bridge are each provided with a horizontally fiat under face, a tapering top face, and vertical side and end walls, the adjacent walls of the respective bridge sections being extended inwardly as indicated at 9 to partially overlap the conductive material to be bridged. The extended portion 9 of each section is recessed as indictated at 10, one recess being provided for each groove 7, and each recess being adapted to receive a suitable fiber tubing 11, the terminals of which fit the recesses 10 of I the respective sections when alined. By protheir respective extensions 9 slightly overlapping the material to be bridged. Said sections 1 and 2 are then fastened or held immovable by a suitable means such as indicated at 12. The conductors 8 are next fitted in the grooves 7 therefor, said conductors first passing through the tubing sections 11, the latter being arranged, as shown to advantage in Fig. 2, with the respective tubing section terminals fitting the recesses 10 therefor. Next, the retaining plates 5 are fitted within the recesses 4 therefor, the plates being fastened as indicated at 6 to effectually hold the conductors 8 within the grooves 7 and the tubing sections 11 immovable relatively to the sections 1 and 2.

From the foregoing, taken in connection with the accompanying drawings it is evident that the appearance of cleat and molding work is greatly improved; that a secure insulation against ground and short circuit is provided; and that the device, although simple, is practical and eflicient and quite well adapted to the use for which it is deslgned.

In reduction to practice, we have found that the form of our invention, illustrated in the drawings and referred to in the above description, as the preferred embodiment, is the most efficient and practical; yet realizing that the conditions concurrent with the adoption of our device will necessarily vary, we desire to emphasize the fact that various minor changes in details of construction, proportion and arrangement of parts may be resorted to, when required, Without sacrificing any of the advantages of our invention, as defined in the appended claims.

Having thus fully described our invention, what We claim as new and desire to secure by Letters Patent, is

1. A bridge for electrical conductors including a pair of relatively movable nonconductive bridge sections, means for fastening the sections immovable, and means for fastening the conductors thereto.

2. A bridge for electrical conductors including a pair of relatively movable bridge sections, each section being provided With a longitudinal groove, and means for fastening the electrical conductors acted upon within the grooves of the respective sections, as and for the purpose set forth.

3. A bridge for electrical conductors including a pair of relatively movable bridge sections, the said sections being adapted to be placed end to end, each section being provided with .a longitudinalrecess, a retaining plate fitting the recess of each section, each section being provided with a longitudinal groove open to the recess aforesaid, said plates being adapted to fasten the electrical conductors to the respective sections and Within the respective grooves, as and for the purpose set forth.

4. A bridge for electrical conductors including a pair of relatively movable nonconductive bridge sections adapted to be placed end to end, the adjacent extremity of each section being provided with a recess, the respective recesses being alined, a nonconductive tubing arranged'to extend from one to the other of the said sections, the respective tubing terminals fitting the recesses aforesaid, each bridge section being provided with a longitudinal recess and further provided with a longitudinal groove open to the recess and in line with the terminal recesses aforesaid, and a retaining plate carried by each bridge section, the respective plates being adapted to fit the respective longitudinal recesses to hold the electrical conductor acted upon Within the respective longitudinal rooves and the said tubing immovable relatively to the respective sections, as and for the purpose set forth.

In testimony whereof We afiix our signatures in presence of two witnesses.

LIONEL l/V. CROMPTON. EARLE N. OLIVER. Witnesses:

E. B. SMITH, J. E. EUcLER.

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