US931301A

US931301A - Trolley-wire hanger.

Info

Publication number: US931301A
Application number: US41745708A
Authority: US
Inventors: Roland B Heimbecker; Samuel R M Orum
Original assignee: Westinghouse Electric Corp
Current assignee: Westinghouse Electric Corp
Priority date: 1908-02-24
Filing date: 1908-02-24
Publication date: 1909-08-17
Anticipated expiration: 1926-08-17

Description

R. B. HEIMBEGKBR & S. R. M. ORUM.

TROLLEY WIRE HANGER.

APPLICATION FILED FEB. 24, 1908.

Patented Aug. 17, 1909.

6 Z, IVENOR M. M

AT TDRNEY WITNESSES:

nwqzyv. a. GRAHAM o0. Puowmnaenumws, mswum' ROLAND B. HEIMBEOELER, O1 WILKHISBURG,

PEKYSYLVAXIA, ASSIGNORS, BY MESIZE ASJGNMENTS, TO WESllr- AND SA) JIJL R. M. ORUEL OF PHILADELPHIA, tI-EOUSE ELECTRIC & MANUFACTURING COMPANY, OF EAST PLTTSBURG, PENNSYLVANIA, A CORPORATION OF PENNSYLVANIA.

Specification of Letters Patent.

Application filed February 24;, 1908.

Patented Aug. 1'7, 1909.

Serial Ho. 417,457.

B35 nan and SAMUEL l3. lti. Orion, citizens oi"- the United States, and residents, respectiyely, of -ii ilkinsburg, in the county of Allegheny and State of Pennsylvania, and of Philadelphia. in the county of Philadelphia and of fennsylyania, have invented a new and useful improvement in Trolleyil ire Elan-gels, of which the following is a specification.

Our lllTGlltiOll relates to means for suspending electric line conductors, and it has tor its ob ect to provide an implored clamping device whereby a trolley conductor may simply and e'il'ectively secured to a suitable support.

Our nnproyed clamping CiGrlCE is specially adapted for use with grooved trolley conuuci ors that are suspended from messenger s or cables, but its use is not limited in as it may be employed in confn conductors of circular crossthat are supported from bracket arms or cross wires in accordance with a well lrnown practic for low potential lines.

Figure l of the accompanying drawings is a front elevation and 2 is an end eley "Zion oi a trolley hanger and clamp con- -ructed in accordance with our invention. ii. 3 and l are detail views of the sheet inc l blanl: from which the jaw member is formed and the clamping unit of Figs. 1 and 2.

Referring to the drawings, a trolley conl ire ductor l is suspended irom a messenger a hanger rod 3, a

cable 2 trolley clamp 5. The

cable clamp l rounds the cable 2 and is pr yided with a pair cit car the upper end of the connect ing rod 3 bcig flattened to fit between the ears 7 and being secured in position by means of a bolt 8.

The blank 9 which is bent to form the gripping member of the trolley clamp is punched or stamped from sheet 1 etal and is provided at one end with two lhOjGCiiO'liS l0 and at the opposite end with a single projection ll of such width and location as to fit between the projections 10 when the blank is bent to final form. The blank is also provided with a central, circular hole 19.,through which the hanger rod 3 may project.

In order to form the gripping device, the blank is bent into triangular form with th projection 11 located in the space between the projections 10, and the ends of the proj ections are bent inwardly to form gripping hooks or jaws l8 and let to ens z e tire side grooves 15 in the trolley wire 1. The sides are bent together, the clamping or gripping action being produced by forcing the upwardly diverging sides 15 apart, in a man ner similar to tl at employed in the manipulation of ice tongs.

A nut 16 is fitted into the hole 12 in the upper horizontal portion 17 of the gripping member and is provided with a flange 18 that fits against the inner face of the part 17. A wedge 19 is located in the angle formed between the sides 15 and the end of the hanger rod engages a recess in the upper side thereof. Since the lower end or the rod 3 is provided with a screw-thread to receive the nut 16, rotation of the nut in the proper direction will force the wedge 19 downward and produce a strong gripping action between the jaws l3 and 1%.

One of the principal advantages of the clamp of our present invention lies in the fact that the jaw members are integral so that the total number of parts is reduced and the arrange nent is such that a firm grip may be etiected even though the parts are roughly formed and poorly fitted together.

it may be desirable to provide lateral proections at the ends of the wedge 19 in order 0 prevent sidewise displacement.

W e desire that structural modifications which do not depart from the spirit of our invention shall be included within its scope.

We claim as our invention:

1. A trolley wire hanger comprising a rod, 21 single piece gripping member having crossed integral jaws, and means for pro ducing a clamping action between the jaws.

2. A trolley wire hanger con prising a rod, a single-piece sheet metal gripping member having crossed integral jaws, and means for producing a clamping action between the jaws.

3. A trolley wire hanger comprising a rod, a single piece sheet metal gripping member having integral crossed projections bent to form jaws, and means for producing a clamping action between the aws.

a. A trolley wire hanger comprising a rod,

a triangular sheet metal gripping member having crossed end projections bent to form jaws, and means for forcing the sides of the member apart to produce a clamping action between the jaws.

5. A trolley wire hanger comprising a rod screw -threaded at its lower end, a sheet metal gripping member having end projections which cross each other and have hooked extremities, a wedge for forcing the sides apart and a nut seated in a hole in said member, said rod being screwed into the nut and engaging the wedge.

' 6., A trolley wire hanger comprising a sheet metal gripping member of triangular shape and having crossed projections of hook shape at its lower end a wedge seated between the sides of the member, a nut seated in a hole in the top of the member, and a hanger rod screwed through the nut and engaging a recess in the upper side of the wedge.

In testimony whereof, we have hereunto subscribed our names this 31st day of Janu-