US513982A - Electric conductor - Google Patents

Description

(No Model.

WITNESSES H. F. CHICK.

ELECTRIC CONDUCTOR.

Patented Feb. 6, 1894.

I HM D UNITED STATES PATENT OEErcE.

HORACE F. OI'IIOK, OF \VATERTO\VN, ASSIGNOR OF TIVO-THIRDS TO FRANK A. SPOONER AND RONALD A. STUART, OF BOSTON, MASSACHUSETTS.

ELECTRIC CONDUCTOR.

SPECIFICATION forming part of Letters Patent No. 513,982, dated February 6, 1894.

Application filed May 1.1893. Serial No. 472,503. (No model.)

To aZZ whom it may concern: In the drawingslhave shown thethree con- Be it known that I, HORACE F. CHICK, a ducting wires insulated from each other and citizen of the United States, residing at Wainclosed in the braided fibrous jacket 0, the

tel-town, in the county of Middlesex and State cavities between the jacket and covered con 5 of Massachusetts, have invented a new and ducting wires being filled solid with insulatuseful Improvement in Electric Conductors, ing material, and the strands of the jacket of which the followingis a full,clear, and eX- being saturated with insulating material. act description, reference beinghad t0 the ac- This inner jacket 0, however, may contain companying drawings, forming a part of this but one electric conducting wire or a num- IO specification, in explaining its nature. ber of conducting wires, varying in size and The invention relates to an electric coninsulated from each other, or groups of conductor especially adapted for use in mines, ducting wires. About the inner jacket 0, I

tunnels and other places where it must be prefer to wind spirally a tape or other more or less portable and be subjected to hard fibrous material saturated with an insulating 15 wear, and where it is more or less exposed to composition, and (Z represents this winding.

other unusual influences. About this is then braided, preferably in in- The invention comprises any desired nu n1- sulating material, the strands c of wire formber of insulated electric conducting wires ing the braided wire jacket f. While I preeither in single or cable form, orboth, covered fer to braid this wire jacket upon the jacket 20 with a braided jacket or covering of one or 0 covered or wound with the tape 61, it may more thicknesses saturated with insulation, be braided directly upon the jacket 0, and in which in turn is preferably wound or covered this respect I would saythat the jacket 0 may by a spiral winding of tape or fibrous matebe composed of two separate braided sections rial treated with an insulating preparation. one within the other. The wire braiding or 25 Upon this structure is a braided jacket of jacket is in turn covered with a braided wire preferably laid in insulating material, fibrous jacket of one or more thicknesses, the

and about this braided wire jacket is braided strands of which are saturated with an insua fibrous braiding saturated with insulating lating composition. The braided wire jacket composition. For certain uses I prefer that protects the jackets and insulation within it go the insulation be of rubber and that the wire from undue wear, preserves their relation to strands of which the braided wire jacket is each other, and yet permits the conductor to 4 made be of copper or galvanized iron or other be easily bent or turned without injury to it, metal not easily corroded. The tape winding the metal braiding being flexible, and permitis not essential, although it is desirable, as it ting such movement to take place; the metal 5 forms the support for the wire and prevents it braiding also acts to protect the entire confrom working through the inner braided ductor from abrasion and wear from contact jacket; butI would say that this tape winding with rough surfaces, and permits it to be may be dispensed with and also the outer dragged, hauled,and otherwise roughly used.

jacket. IVhile I prefer to use a ductile copper or 40 In the drawings: Figure 1 representsin plan soft iron wire, yet I do not confine myself to the Various divisions or sections of the conwire made of these materials. ductor. Fig. 2 is a sectional view upon the I would say that forcertain purposes it will dotted line of Fig. I. Fig. 3 represents an inbe desirable to insulate the conductor or consulated group of cables with an outerbraided doctors with india-rubber, the india-rubber 5 wire covering or jacket. envelope of any desired thickness being bea a a are the conducting wires. They are tween the conductor or conductors and the 5 of any suitable material, and they are each inner fibrous braided jacket. I would also covered with a coating 7), of insulating matesay that this conductor can be used for telerial. v phonic purposes whether magneto, pulsion or said conducting strand or strands,'and wound upon its exterior with a tape or other fibrous material saturated with insulating composition, and an exterior braided wire jacket, as and for the purposes described.

' 3. In an electric conductor, one or more insulated conducting wires contained within a braided jacket or covering, a winding of tape or fibrous material saturated with insulating composition about the inner jacket, a jacket of braided wire surrounding the tape covering, and a fibrous jacket of strands saturated with insulating composition about or covering the wire jacket, substantially as described.

HORAOE F. CHICK. In presence of- J. M. DOLAN, F. F. RAYMOND, 2d.

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