US1374561A - Trolley-hanger - Google Patents

Description

H. L. GARBUTT.

TROLLEY HANVGER. APPLlcAlloN FILED 1AN.1s,1917.

Patented Apr. 12, 1921.

!NVENTOR Harry l... GcrbuT-T.

UNITED "STATES reef;A

HARRY L. GARBUTT, or WILKINSBURG, PENNSYLVANIA, iisSIGNOR Tojwns'r'rne- HOUSE ELECTRIC & MANUFACTURING COMPANY, A CORPORATION OF PENN-SYI- UANIAQ a trolley-supporting means which will positively insulate the trolley conductor from the supporting cables and will not release the trolley conductor even though the insulating units become broken.

Another object of my invention is to provide an insulator with a shield which will protect the same from Wildtrolley poles, missiles, and the like.

' A further object of my invention is to provide an insulated trolley hanger in which the rapidly wearing parts may be readily renewed without in any way releasf ing the mainV supporting structure.

A further object of my invention is to provide a trolley ear which' is pivotally secured to the supporting base and which will aline itself with the trolley conductor.

A further object of my invention is to provide a device of the above-indicated character in which a plurality of trolley ears may be assembled in side-byfside relation upon a single insulated `supporting structure.

A further object of my invention is to provide a trolley ear which will yield slightly under the impact of the trolley wheel and thereby prevent the rapid wearing away of the trolley ear.

My invention provides two strain insulators having a cable extending therebetween to which a trolley-supporting ear is secured.

Figure 1 of the accompanying drawing is a top plan view of a trolley-supporting device embodying my invention; Fig. 2 1s an end elevational view of the deviceshown in Fig. 1; and Fig. 3 is a top plan view Vof a portion of the-clamping means shown in Fig. 1.

The trolley hanger shown in the drawing comprises a plurality of strain insulators 1 having a cable 2 extending therebetween, uponv which a clamping member 3 and a Tammy-HANGER. f

Specification of Letters Patent. Application inea January 16,1e17fseria1 Nb. 142,633.

, ratenteuiipr. 12, 1921.

trolley-supporting ear 4 are mounted. The

strain insulators l are preferably of anV in-.

terlocked type in which a supporting cable 5 is looped with the cable 2.v The clamping member 3 has a bottom lpiece 6V that is provided with a corrugated surface having cable-clamping groves 7 of substantially semi-circular cross-section, which extend diagonally across the member 6 and are adapted to'admitrtheends ofthe` cable 2l at diametrically opposite points. .Oppositely extending shields 8 are provided to protect the insulators 1 from disengaged trolley wheels and the like. A top clamping piece 9 has corrugations and .grooves corresponding to those of the member 6 and is secured thereto, by clamping bolts 10. The trolley ear 4f is secured in place vby a single bolt 11, which permits of' a pivotal movement of the trolley ear, thus alining the same with a supported trolley conductor 13.

The grooves 7 provide considerable clamping surface for the cable 2 and secure the same solidly in place by having a lurality of corrugations, as set forth. ince the trolley ear 4 is secured in place by a single bolt 11, it will be seen that there will be.

no necessity of loosening the clamp 3 in order to renew the trolley-supporting member 4, which necessarily wears away rapidly. The cable 2 is of relatively light weight and is slightly flexible, thereby yielding under a sudden impact from a passing trolle wheel upon the trolley ear 4. v

Although I have described my invention in a simple and preferred form, it will p readily be seen thatA numerous types of strain insulators land cablefclamping devices may be employed therewith, and I desire,

therefore, that only such limitations shall be imposed as are indicated in the ap pended claims. Y

I claim as my invention:

1. A trolley hanger comprising a looped cable, a clamp for securing the ends of said cable, insulating supporting means interlinking saidcable at each end of the major axis thereof, and a trolley-conductor-supporting meansl secured to said clamp.

2. A wtrolley hanger comprising a looped flexible member, a clamp for securing the ends thereof,` insulating members inter-v linked by said flexible member, and trolle conductor-supporting means secured to sald clamp.

3. A trolley hanger comprising a looped member, means for securing the ends` thereof, insulators V-said insulators, a clamp for Vsecuring the ends of said cable having oppositely and outwardly extending arms for protecting said insulators, and wire-supporting means secured to saidf clamp.

, 5..'I`he' combination with a looped member, of kinsulators interlinked thereby, and

means: for securin'grthe ends of the looped member and for supporting a conductor.

.-6. A trolley hanger comprising a plurality of insulators, a cable for connecting Vsaid insulators, means for clamping the ends stantially endeto-end relation, of strain insulators comprising blocks of insulating material disposedl in the spaces between said metal members and each having aseat portion at each end one of which seat portions is at substantially right angles to the other, said metal members interlinking said blocks and being disposed in said seat portions, and means for supporting a conductor between said blocks. e vi In testimony whereof, I have hereunto subscribed my name this 9th'day of Jan.,

H, L. GARBUTT.

Images