US773089A - Ear for carrying overhead trolley-wires. - Google Patents

Description

PATENTED OCT. 25, 190

- F. MORRIS.

BAR FOROARRYING OVERHEAD TROLLEY WIRES.

APPLICATION FILED JUKE 13, 1904.

"'li lfll lim I Ihventor Patented October 25, 1904.

PATENT OFFICE.

FRANCIS MORRIS, OF GOVANHILL, GLASGOW, SCOTLAND.

EAR FOR CARRYING OVERHEAD TROLLEY-WIRES- SI EOIFIGATION forming part of Letters Patent No. 773,089, dated October 25, 19041 Application filed June 13, 1904.

wherein the trolley-wires are housed and secured in electric contact without soldering thereto and which may also serve as a connection for feedlng in current and for holding the spliced ends of the wires, while it presents no obstruction to the free passage of the trolley-pulley traveling under the 'wire.

In the accompanying drawings, which illus-. trate the invention, Figure 1 is an elevation; Fig. 2, a plan of the improved ear or support as adapted also for the connection of anchorwires and for feeding in current to the trolley-wire'. Fig. 3 is a cross-section thereof as at the line 3 3, Fig. 1, and showing the feed ing-in connection. Fig. 4: is a cross-section as at the line 4 4, showing the socket into which is secured the usual insulator-stem for supporting the ear from the cross-wires. Fig. 5 is a cross-section at the line 55. Fig. 6 is an elevation, and Fig. 7 aplan, showingamodification in which a single supporting-socket is provided for carrying the ear from the cross-wires.

As shown by the drawings, the improved ear or support is composed of a channel or U- shaped barA of conducting metal, preferably tapering slightly toward the ends, which may be pressed over the trolley-wire B, as shown, after the latter has been laid in the channel A At about the mid-length of the channelbar A is a socket-piece 0, having a screwthreaded orifice tapped in it for the reception of an insulator by which the bar is suspended from the-usual cross-wire stretched across the roadway or from projecting arms on the trolley-wire support, said socket C be ing fitted within upwardly-extending wingsa, formed on the supporting-bar, and upon which Serial No. 212,404- (No modeld wings, which are externally screw-threaded, as shown, 1s screwed a nut D to retaln the socket-piece O in place: The socket-piece O is formed with side ribs or webs 0 extending through the side wings a to present bearing-shoulders at 0, on which the nut D presses, and its lower end c is brought to bear hard on the trolley-wire .B, which is laid in the channel of the bar A. The said side ribs or webs C of said socket-piece C may be extended through the side wings a and bored at c on either-side, as shown at Figs. 1, 2, 6, and 7, for the purpose of anchoring the trolleywire by means of cross-wires fixed in said extended webs; but such side webs are only provided in cases in which provisionis to be made for attaching anchor-wires. Oneach side of the'socket part or at other points-in the length of the bar A are smaller side wings or bridgepieces a formedwith slotted guidesa wherein are fitted keys or wedges E, resting on the trolley-wire B and pressed hard down thereon by means of screw-nuts D, threaded on said wings or bridges and bearing on the upper edges of the keys or wedges or on shoulders formed on them. By these means the trolleywire B or the spliced part thereof is firmly held in the channel-bed A of the ear or support A, while the latter conveys without break the current from the wire to the trolleypulley traveling under it.

For the purpose of feeding current to the trolley-wire B through the car A one or more of the bridge-pieces or wedges E; fitted therein, may be formed with an orifice for the reception of a feed-wire F, as indicated at Figs. 1, 2, and 3, which wire may be secured by soldering in such orifice or by other means.

What I claim as my invention, and desire to secure by Letters Patent,.is

, 1. The improved ear or support for carrying trolley-wires, comprising, in combination, a bar of conducting material and having a channel to hold the trolley-wire, a socketpiece for suspending said support and devices for securing said socket-piece inpositionso as to press the wire within the channel, substantially as described.

2. The improved ear or support for trolleywires, comprising, in combination, a bar of channel-section having upwardly-extended Wings formed thereon, said Wings being screwthreaded externally, a socket piece screwthreaded internally and having side ribs extending through said Wings, and a nut to retain said socket-piece in place, substantially as described.

3. The improved ear or support for trolleywires, comprising, in combination, a bar of channel-section having upwardly-extending central Wings formed thereon, said wings being screw-threaded externally, a socket-piece screw-threaded internally and formed with side ribs extending through said wings, said ribs being bored to receive anchor-wires, a nut engaging the screw-threads of said wings, bridge pieces formed with slotted guides, wedges adapted to press on the trolley-wire and means for pressing down said wedges, as and for the purpose set forth.

4. The improved ear or support for trolleywires, comprising, in combination, a bar of channel-section having upwardly-extending central Wings formed thereon, said wings being screw-threaded externally, a socket-piece screw-threaded internally and formed with side ribs extending through said wings. a nut engaging the screw-thremls of said wings, bridge pieces formed with slotted guides, wedges adapted to press on the trolley-wire, one of said wedges having an orifice for reception of a feed-wire, and means for pressing down said wedges, as and for the purpose set forth.

5. The improved ear or support for carrying trolley-wires, comprising, in combination, the channel-bar A tapered toward its ends, and having upwardly extending wings (0 formed thereon and screw threaded externally, the socket-piece C having a screwthreaded orifice and having side webs U extending through the wings a, the nut l), bridge-pieces a with slotted guides a, wedges E and nuts D, as shown and described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

FRANOIS MORRIS.

Witnesses:

\VALLAeu Runwmrnnn, JNO. ARMSTRONG, Junr.

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