US553858A

US553858A - Spring supporting-ear for trolley-wires

Info

Publication number: US553858A
Authority: US
Publication date: 1896-02-04
Anticipated expiration: 1913-02-04

Description

'(No Model.)

- G. A. LIEB.

SPRING SUPPORTING EAR FOR TROLLBY WIRES.

N0. 553,858. Pltente'd Feb. 4, 1896.

\A/ITNEEEEE. INVENTEIR.

aft-m, I r

UNITED STATES PATENT OFFICE.

CHARLES A. LIEB, OF NEW YORK, N. Y., ASSIGNOR TO THE GENERAL ELEC- TRIC COMPANY, OF NEWV YORK.

SPRING SUPPORTING-EAR FOR TROLLEY-WIRES.

SPECIFICATION forming part of Letters Patent No. 553,858, dated February 4;, 1896.

Application filed Tune 23, 1894. Serial No. 515,469. (No model.)

To all whom it may concern.-

Be it known that 1, CHARLES ALIEB, a citizen of the United States, and a resident of New York, county of New York, and State of New York, have invented certain new and useful lmprovements in Spring Supporting- Ears for Trolley-Wires, of which the following is a specification.

My invention relates to cars adapted to support the trolley-wire of an electric railway in place, and has for its object to provide such an ear with a portion adapted to support the wire somewhat flexibly, for reasons pointed out hereinafter.

It has been found that when a bracket-arm is rigidly attached to a post, and the insulator with proper bolt-hole for the ordinary trolleyear is rigidly attached to the bracket-arm, the trolley in passing gives the arm a very sharp blow, which is communicated to the roof of the car, which is unpleasant for the passengers and injurious to the car, to the trolley and to the overhead construction.

It is the object of my invention to provide a part of the trolley-ear with some degree of flexibility and to locate this portion directly beneath the bolt which attaches the ear to the insulator. For the same reasonthat is, to provide some flexibility to the ear-I attach it by a bolt about which its body portion may I rock in the direction of its length, so that the blow which comes upon the part of the ear nearest to the trolley, as it approaches, may also be slightly broken by the yielding of the ear about this bolt as a center. I have also found that one side of the wire-supporting clip or sleeve of a trolley-ear wears off faster than the other when the ear is located upon a curve, and to obviate this difliculty I provide inthe wire-supporting part an increased thickness upon one side, so that the ear may be adjusted with that side on the inside of the curve to take the greater part of the wear. At

the same time the thicker side of the sleeve may be formed in the process of manufacture,

leaving the thinner side to be bent down over the wire to secure it in position, by which this operation is greatly facilitated.

. sulator.

B is the bell or cap designed to prevent acoess of moisture to the parts.

0 is the supporting part or bolt portion of the trolley-ear provided with the bolt 0, about which it may rock.

D is the bolt-hole. (Shown in dotted lines.)

E is the body of the ear.

F is a longitudinal slot cut in the body of the ear just above the sleeve and immediately below the bolt-hole.

G is the sleeve portion of the ear, and II is the trolley-wire.

The slot F may be of greater or less length, though I have found that for the purposes of my invention a length of ten or twelve inches is ordinarily sufficient. A greater length than this is however desirable, if it can be readily obtained.

Referring nowto Figs. 2 and 3, G is the thinner side of the wire-supporting sleeve and G is its thicker side designed to be upon the part of the curve Where the wear is greatest. As already explained, the portion (l is made into shape in the process of manufacture, and the trolley-wire being inserted in the sleeve the part G is bent over it, which effectually secures it in place.

The construction described enables me to employ a standard trolley-ear for both spanwire and bracket-arm construction, if desired, the slot F in the trolley-ear being of particular usefulness in the bracket construction,. and while not essential in the span-wire construction it is not objectionable, and may be readily employed.

What I claim as new, and desire to secure by Letters Patent of the United States, is

1. As a new article of manufacture, a trolley-ear comprising a bolt portion adapted to secure the ear to the insulator, a body part, a sleeve adapted to secure the trolley-wire in place and aslot in the body part between the sleeve and the bolt portion.

2. As a new article of manufacture, a trolley-ear comprising a, bolt portion adapted to secure the ear to the insulator, a bolt therein, a body part rocking about the bolt, a sleeve adapted to secure the trolley-wire in place and 10 a slot in the body part between the sleeve and the bolt portion.

In Witness whereof I have hereunto set my hand this 13th day of June, 1894.

CHARLES A. LIEB. \Vitnesses:

C. J. AUSTIN, B. B. I-IULL.