US522180A

US522180A - Ments

Info

Publication number: US522180A
Authority: US
Publication date: 1894-06-26
Anticipated expiration: 1911-06-26

Description

(No Model.) 2 Sheets-Sheet 1.

T. J. MOTIGHE.

'TROLLEY WIRE HANGER. No. 522,180. PatentedJune-zes; 1894.

WITNESSES U5. NAYIONAL unloenAPnma COMPANY (No ModeL) I I 2 Shets-Sheet T. J. McTIGHE;

TROLLBYiWIRB HANGER. No. 522,180. Patented June 2fi 1894.

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l INVENTOR;

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I ley-wire.

UNITED STATES PATENT OFFICE.

THOMAS J. MOTIGHE, OF NEW YORK, N. Y., ASSIGNQR, BY MESNE ASSIGN- MENTS, TO FREDERICK K. FITCH, OF'SAME PLACE.

TROLLEY-WIRE HANGER.

SPECIFICATION forming part of Letters PatentNo. 522,180, dated June 26, 1894. pp i filed January 23,1893. Renewed January 22,1894. Serial No. 497,723. (No model.)

To all whom it may concern.-

1 3e it known that I, THOMAS J. MCTIGHE, a cltizen of the United States, and a resident of New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Trolley-Wire Attachments for Electric Railways, of which the following is a specification.

This, invention relates to various attachments used on the trolley-wire of electric railways, the object being to secure an unfailing grip upon the Wire so that it cannot slip longitudinally in its fastening.

The invention consists in a stud formed on the line-fixture externally threaded and having a central slot with curved bottom in combination with a fiat plug or follower fitting 1n the slot and having its lower end substantlally conforming to the curved bottom of the slot and forcibly held therein by a cap screwed on the stud, the trolley wire being laid in the slot and forced into a bond by the plug and cap.

The invention further consists in thecomblnation and arrangement of parts, substantlally as hereinafter fully described and claimed.

In the drawings which form part of this specification, Figure 1 is a side elevation (partlysectional) of the trolley-wire anchorear. Fig. 2 is a plan view of same with cap removed. Fig. 3 is a central vertical section of Fig. 2. Fig. 4 is a modified form of cap, 1ns1de elevation. Fig. 5 is a perspective view of the plug. Fig. 6 is a side elevation and Fig. 7 is a plan of a trolley switch containing the same features of attachment to the trol- More fully, my invention as applied to an anchor-ear, is as follows :To the usual span-wire is attached any suitable form of insulator having means of securing it to the cap A, which has the threaded cavity in its bottom as shown and the lateral eyes Z) as inFig. 1 (or the hooks b as in Fig. 4). The ear 0 is a long bronze or other metal casting having preferably a groove 01 in its upper face, and an externally threaded stud Emid-length of the groove. The stud E is slotted, and the bottom of the slot is depressed, as shown. The trolley wire 10 is laid in the groove and slot, and then the Hat plug f is placed in the slot on .top of the wirew, the bottom edge of the plug conforming substantially with the curvation of the bottom of the slot in the stud E, and the stud being in thickness equal or practically equal to the width of the slot, and high enough to project out of the slot. Next the screw-cap A is screwed down on the stud, forcing the plug against the-wire until the latter is bent down into the depression and against its bed. The plug has three functions:.it prevents the collapse of the slotted stud, it puts a sharp bend or kink in the wire, and also clamps the Wire directly against the bed of the slot. The stud being larger than the diameter of the wire, I form' the ear 0 with the double inclined runner, so that the trolley-wheel cannot strike the base of the stud; but obviously the runner might be horizontal and the stud formed at the apex of two similar but reversed inclines in the top edge of the ear. Obviously also the clamping feature in the slotted stud may be reversed, the

bottom being raised into a ridge and the face of the plug being correspondingly concave, instead of convex as in the drawings. The wire is thus securely held in the ear against longitudinal displacement, being both tightly clamped and thrown sharply out of line.

In anchorages, the usual guy-wires are attached to the eyes or hooks b of the cap A.

On account of the inclines on the ear, the latter is made of considerable length, and it is advisable to hold the ends securely in p0,- sitionagainst the trolley-wire. I accomplish this by casting the matched flaps m at the ends, providing them with rivet holes as shown, and folding them inwardly over the wire to till they nearly or quite meet, and then riveting them tightly together.

The invention is applicable to various trolley line fittings besides the anchor-ears. In Figs. 6 and 7, I have shown its use on a switch or frog of one of the well known types. Here there are three blades or runners, R, R" and R the two latter diverging in the form of a Y. On top of each of the runners I construct the clamping studs E, E and E" with a screwcap A and plug f, just as in the anchor-ear Fig. 1. The outer ends of the runners are provided with the matched riveting flaps m also. In the frog illustrated the main trolley wire passes through and is clamped in the stud E and either of the others While the branch wire is clamped in the remaining stud, the free end of the wire being curled or coiled up in the customary manner.

I claim as my invention 1. A trolley-wire attachment consisting of an ear or casting of suitable shape having a slotted screw-threaded stud adapted to receive the trolley-wire, a flat plug substantially filling the slot, aucl'a screw cap adapted to fit the stud and press the plug against the trolley wire.

2. A trolley-Wire attachment consisting of THOMAS J. MO'lIGI-IE.

Witnesses:

MILLER A. SMITH, JOHN F. BARRY.