US931353A - Trolley-hanger. - Google Patents

Description

Pa'tsntefi Aug. 17, 1909.

.5 am M 2 SHEETS-SHEET l.

TROLL-BY HANGER. APPLICATION TILED MAY 1. 1905.

Patented Aug. 1?, 1909.

2 SHEETS-SHEET 2.

WITNESSES:

nnrrisn s rar n s'r rnnr oin iicn THEODORE VARNEY, OF PITTSBURG, PENNSYLVANIA, ASSIGNOR TO WESTINGHOUSE ELEC- TRlt & MANUl EtCTURlNG COMPANY, A CORPORATION OF PENNSYLVANIA.

TROLLEY-HANGER.

Specification of Letters Patent.

Patented Aug. 17, 1909.

Application filed May 1, 1905. Serial No. 258,322.

' To all rulzom it may concern:

&

Be it known that l, Tnsononn VARNEY, a citizen of the ljnltcd States. and a resident of Pittsburg, in the county of Allegheny an extensible hanger that shall be simple and durable in construction and which may bereadiiy and securely clamped to a grooved trolley conductor and pivotally supported from a n'icssenger wire or cable.

Trolley hangers heretofore constructed for use with a :atenary form of line suspension gene ally comprised a rod or bar adapted to be suspended from the messenger wire or cable and expanded into a clamping jaw at its lower end, and a comploincntary clamp ing plate that was ta cncd to the clamping jaw' by a plurality or binding screws. This construction not only did not permit of any adjustment in the length of the hanger to suit special conditions. but its installation involved considcrable time and labor and the'binding screws were liable to work loose by reason of the jar that accompanied the passage of the trolley alongthe comluctor.

inordcr to obviate the objections and limnations incident to the use of the devices that have ln'a'cto'lorc been employed, the hanger of my invention is'so constructed and supported that its length may be varied and its angular relation to the messenger cable may be adjusted. and it is also so constructed that it cannot. be ac identally detached lron'i the trolley conduc or. Furthermore, in case it is" undesirable to provide extensible body portions, the relation of the parts is such that a hanger may be readily made olany convenientlength by cutting the connecting rod or pipe to the proper length and re threading it near one end. w

My invention is illustrated in-tho acconr panying drawings, in which- I l igure l is an end elevation of the hanger; the clamping bushing being shown in tion to disclose the clamping jaws. Fig.

sec- 2 is g 6 and 7, the cou 'ilingsleeve l2- and the mesa side elevation of what shown in Fig. l, and Fig. 3 is a side elevation of a hanger having an extensible body portion. Fig 4 is a diagrammatic side elevation oi a section of line construction which embodies my invention.

Referring to Figs. 1, 2 and 4t of the drawinns. an electric line or trolley conductor 1 is supported from a messenger cable by hangers I} of dili'crcntlengths to insure suspension of the trolley conductor from the messenger cable at a uniform height above the track and each of which comprises a body portion or connecting rod i. a messenger cable clamp or clip 5 and a plurality of clamping;- jaws t3 and T. The clamping jaws (3 and 7 may be either loosely connected together by a hinged joint 8 or they may be merely assembled face to face to constitute a cylindrical body. which is screw-threaded, indicated at 11. Each clamping jaw has an inwardly projecting hook or claw 10 that engages a corresponding groove 11 in the side of the conductor l. The jaws aie so constructed that, when the hooks engage the grooves in the conductor, the threaded portions are separated slightly at their lower ends and the claws are forced into rigid clam 'iing engagement with the conductor by means of a coupling sleeve l2 that n'iakes a scrcw-threadtal engagement with the rod 4i and the jaws (l and 7. By omitting the hinge joint between the jaws (3 and 7, the jaws may be more cheaply mamil'actured and be made alike and therefore interchangeable. After the coupling sleeve 12 has been screwed to clamping position on the jaws, the pipe i is screwed into it and forced against the upper ends oi the jaws t3 and T to make a rigid jointwhich is further made secure from any possibility of the bushing working away from the jaws by limiting the thread on the rodl to the space covered by the coupling sleeve. The clamp or clip 5 cinnpriscs a loop. 13 that [its over the cable 2- and -is provided with two cars i l and i5. lhe,.ilattoned upper end 16 ot the rod l is located between the ears l4. and. 15 and is fastened thereto by a bolt 17 to lorm'a -pi.v( )tal con-f nection so that each rod "l l ltltty hangwcrtically from any point in the curved messengcr cable.

The modification of my invention shown in Fig. 8 of the drawing embodics the jaws llt.

senger cable clamp hereinbefore described, but in lieu of the rod i shown in Figs; 1 and 2, I employ a member 18, the upper end of which is fastened to the clamp 5 in the same manner as the rod 4: and the lower end of which constitutes a nut 19 for a screwrod 20. The rod 20 is screwed into the coupling sleeve 12 against the upper ends of the iaws 6 and 7 and a lock-nut 21 is then screwed against the upper end of the conplin sleeve. Iii" er the above specified COlUlGCLLOil between toe and the trolley conductor made, the member may be screwed either up or down on the rod 520 to secure the length of hanger, and then upper end may be attached to the clamp 5.

Although I here shown and descibed a specific 'angement, I desire it to be understood that variations in six and form that do not substantially change the construe tion or the object obtained shall be Within the scope my invention.

I claim my invention:

1. A conductor hanger comprising a cable a cable-engaging clamp, a rigid body member pivotailv connected. a

one end to said clamp so as to be adjust his in a vertical plane containing the cable and a pair of conductor-damning nieinbers mounted upon the other end of the body member and hav jaws disposed parallel to said plane.

A. conductor-supporting hanger comprising a cable, clamp a rigid extensibie body member pivotally connected at one end to said clamp as to be adjustable in a vertical pl ne containing the cable, and conductor-01a ing members mounted upon the other end ofsaid body senses member and having jaws disposed parallel to said plane.

3. The combination With an electric conductor, of a supporting hanger therefor comprising an extensible body member having a screw thread upon its lower end, a pair of clampin jaws having external screwthreads, an an internally threaded sleeve which engages said body member and said jaws.

-l. The combination with an electric conductor, of a cable, a cable-engaging clamp, a body member, a pair of clamping jaws disposed parallel to the plane of the cable, an adjustable means for holding said clamping jaws in engagement with said conductor and for connecting them to said body member, and means for so attachin said body mem her to the cable-engaging 0 amp that it shall be angularly adjustable only in a vertical plane which is coincidentwith the axis of the cable.

The combination With a messenger Wire or cabie and means for supporting t e same in catenary curves, of a trolley conductor in the same vertical plane as the messenger THEODORE VARNE lVitnesses Jorm D. PA'roN, BIRNEY Hnzns.

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