US873017A - Trolley-wire ear. - Google Patents

Description

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WITNESSES.-

y 2 and a clamping member 3 by which the unire sans arnur f nnicn, \\'ll,l,l';\.\l G. CAREY, OISOHENTIvOh-NEW YOI-IASSIGNOR TO GENERAL ELECTRIC VOMPANY. A CORPORATION OF NEv YORK.

TRO LLE Y-WIRE EAR.

Specification of Letters Patent.

Application filed February 21N. 1907. Serial No. 358.533.

No. 873,017. Patented Dec. 10, 1907.

To all who-m yit lmay concern.' l

Be it known that I, ViLLiAM G. CAREY, a l citizen of the United States, residing at Schenectady, county of Schenectady, State ol' New York, have. invented certain new and useful Improveimiuts in Trolley-VVire Ears, ol' which the. following is a specification.

'lhe present invention relates to electric railways and more especially to the suspension ol' overhead trolley wires.

As is well known, trolley wires are made of hard drawn copper with uniform dimensions throughout their entire. length, and in order to suspend them without obstructing their lower or contact surface, it is customary to attach ears to their upper surfaces at desired interi-'als hy means oi' solder or by mechanical clamping means.

The, object oi my invention is t0 provide i an ellieient and simple mechanical clamping ear which may be easily applied or adjusted with reference to the trolley wire and readily connected to or disconnected from the part by which it is. suspended.

In the drawing accompanying/and forming a part of this specification, I have shown in Figure 1 a side elevation of a mechanical clamping ear embodying one form of my injection or ledge. 11.

wire 4 between the jaws.

jaw members.

Without departing from my invention.

part cross-section of the saine; and Fig. 3 is a top plan view thereof. The ear comprises two jaw members 1 and jaws are forced into and held in fixed relation to thetrolley wire 4. said transverseI recess, and means for forcing 'Ihe larger or lett-liand aw member 1 has said jaw members toward each other.

a cylindricalupper end provided with a pe- 2. An ear for trolley wires comprising a riplieral thread 5. Extending vertically jaw member having at its upper side a protlirough the cylindrical end is a rectangular jection provided with vertical and horizontal recess 6 with its longer dimension parallel to recesses, a supporting member having an eye the aw part. An inverted U-shaped slot 7 is cut through the lower bali of the cylindrical end at right angles to the recess 6, and a circular recess S is formed in the wall of the recess 6 opposite the slot 7.

rlhesmaller or right-hand jaw member 2 has at its upper edge an integral bracket 9 adapted to freely enter the U-shaped slot 7 in the other jaw member, and provided on its inner side with a cylindrical projection 10 bers toward each other.

adapted to freely enter the circular recess S and on its outer side with a lhorizontal pro- The clamping member 3 consists of a nut adapted to be screwed downwardly on the thread 5 of the larger jaw member so that its lower surfacevengages and depresses the ledge 11 of the smaller jaw member which, on account of its projection 10 being fulcruined in the recess S of the larger jaw member, swings inwardly at its lower end to grip the trolley The support for the ear consists of a rod or other device 12 provided at its lower end with an eye piece 13 adapted to enter the. vertical recess 6 in the larger jaw member, and it is connected thereto by passing the cylindrical projection 1() of the smaller j aw member through its eye in assembling the I do not desire to restrict myself to the particular form or arrangement of parts herein shown and described, since it is apparent that they` may be changed and modiiied That Isclaim as new and desire to secure by .Letters` Patent oi' the United States, is,-

1. An ear for trolley wirescomprising a vention; Fig. 2 is a part end elevation and jaw member having a projection at its upper side provided with vertical and transverse recesses, a supporting member having an eye located in said vertical recess, a second jaw member provided with a projection extending through said eye and engaging the wall ofv located in said vertical recess, a second jaw member having at its upper edge a bracket provided on the inner side thereof with a cylindrical projection extending through said eye and engaging the wall ot' said horizontal recess, and means vfor forcing said jaw mem- 3. An ear for trolley wires comprising a jaw member having at its upper side a cylindrical projection provided with a peripheral screw thread and Vertical and horizontal re. In Witness whereof, I have hereunto set my eesses, a'supportingmember having an eye hand this 19th day of February, 1907. located -in said Vertical recess, a lsecond jaw y member .having a projection extending WILLIAM G. CAREY.

5 through said eye and engaging the Wallof f said transverse reess, and a nut mountedvon Witnesses: said peripheral screw thread and adapted to HELEN ORFORD, force said jaw members toward .eheh other. A i BENJAMIN B. HULL.

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