US1401650A - Trolley-hanger - Google Patents

Description

W.. SCHAAKE. I

TROLLEY HANGER.

APPLICATION FILED MAY 1. 1911.

1,401,650. Patented Dec. 27, 1921 2 SHEETS-SHEET l. l

WITNESSES INVENTQR I BY ' ATTORNEY W. SCHAAKE.

.TROLLEY HANGER.

APPLICATION FILED MAYT. 1917.

' 1,401, 50, Patented Dec. 27, 1921.

2 SHEETS-SHEET 2 WITNESSES I INVENTOR W/'///'a m 5cfi 4/fe:

UNITED STATES PATENT QFFICE.

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Application filed May 7, 1917. Serial no. 167,099.

To aZZ whom it may concern:

Be it. known that LlVrLLrAM SCHAAKE, a citizen of the United States, and a resident of Pittsburgh, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in Trolley- Hangers, of which the following is a specification.

My invention relates to trolley-wire hangers and particularly to hangers for support.- ing a plurality of trolley wires disposed in side-by-side relation.

The object of my invention is to provide a hanger of the above-designated class that shall have improved operating characteristics and shall embody an improved form of trolley wire clamping aws.

Heretofore, it has been proposed to support adjacent trolley wires from a common messenger cable by using separate hangers for each wire. I

I propose to connect adjacent clamping jaws for the respective wires and to suspend this structure from a central point in such manner that the weight of each trolley wire will counterbalance that of the adjacent trolley wire and thus provide a structure in which a slight difi'erence of pressure from the current-collecting shoe shall move the wires to the same level and, therefore, improve the collection of current from such wires.

Figure 1 of the accompanying drawings is a side elevational view, with one member of one of the trolley-wire clamps removed, of trolley-wire hanger constructed in accordance with my invention; Fig. 2 is an end elevantional view of the hanger shown in Fig. 1; Fig. 3 is an end elevational view of a slightly modified form of hanger; Fig. 4: is a side elevational view or the device shown in Fig. 3; Fig. 5 is a top plan view of the hanger shown in Fig. 3; Fig. 6 is an end elevational view of a modified form of trolleywire hanger; Fig. 7 is a top plan view of the hanger shown in Fig. 6; Fig. 8 is an end elevational view of a further modification of my invention; and Fig. 9 is a side elevational view, with parts removed, of the device shown in Fig. 8.

Referring to the accompanying drawings, a plurality of trolley wires 1 are supported from a messenger cable 2 by a plurality of trolley-Wire clamps 3 and 1 that are connected together by a one piece hanger rod.

Specification of Letters Patent.

Patented Dec. 27, 1 192 1 5. The trolley wires. 1 are of usual; form and are. disposed in side-by-side'. relation; Each of the" trolley wire clamps and at comprlsesmembers 6 and 7 that cl'am p the trolley wire 1 between them. The member 6 is provided with a projection 83 which engages a depression 9 of the member 7 in order to maintain the member's in proper cooperative relation. Each of the members 6 and 7 is provided with a recess 10' in which a looped end 11 of the hanger rod 5 is located. A bolt 12 extends through the members 6 and 7 and the loop 11 and serves to secure the members 6 and 7 rigidly together.

The modified structure illustrated Fig. 3, Fig. 4 and F ig. 5 is provided with an additional supporting rod 13 that extends'from the rod 5 to the messenger cable 2. The added utility of such a device arises from the fact that the center of support for the structure is materiallylowered by employing this additional arm.

Fig. 6 and Fig. 7 show a modification of my device in which the lowerportion-s of the trolley clamps are offset from their customary positions. This arrangement permits the trolley wires 1 to be brought into closer relation and also enables a shorter length of rod 5 to be used for connecting thetrolley-wire clampsB and 4.

A further modification is illustrated in Fig. 8 in which a central plate 14: is apertured to receive the loop 11 of the hanger rod 5, and side plates 15 and 16 are interlocked with the central plate and are disposed upon its sides. The trolley wires 1 are clamped between the central plate 14 and the side plates 15 and 16 by the bolt 12 which extends through the several plates and also through the loop 11 of the rod 5.

By connecting adjacent trolley wire clamps and supporting the structure from a point substantially midway between them, the weights of the trolley wires counter-balance each other, thus providing a structure which will readily accommodate itself to an equal distribution of contact pressure between the trolley wires. If, for instance, a pressure is applied to the right-hand trolley wire only, it will tend to rise in position until the left hand wire is also supported with a sub stantially equal contact pressure. This ensures a substantially equal electrical conduction from the wires and precludes the dangers arising from unequally positioned wires in which only one of the wires supplies energy to the moving vehicle.

Although I have described my invention in a few of its simplest and most preferred forms, I desire that it should only be limited by the spirit and scope of the appended claims.

I claim as my invention:

1. The combination with a plurality of parallel conductors, of a single hanger structure therefor comprising means cooperating with the conductors at positions offset along the conductors.

2. The combination with a plurality of parallel conductors, of a single hanger structure therefor constructed to permit a current-collecting device to pass the same continuously in contact with a conductor that is unsupported opposite the point of contact.

8. The combination with a plurality of parallel conductors for simultaneous co operation with a single movable trolleycarrying device, of a single hanger structure having means cooperating with each conductor and constructed to permit relative movement of the conductors.

4. The combination with a plurality of parallel trolley conductors, of a single hanger structure therefor comprising a clamp for each conductor, said clamps being offset along the conductors with respect to the other clamps to permit the conductors to lie close together, and means for joining said clamps.

5. The combination with a plurality of parallel trolley conductors, of a single hanger structure therefor comprising a clamp for each conductor, said clamps being offset along the conductors withrespect to lateness) each other to permit the conductors to be a substantially minimum distance apart, and yieldable means for joining the clamps and permitting the automatic adjustment of the conductors with respect to passing trolleys.

6. The combination with a plurality of side-by-side trolley conductors, of clamps for supporting said conductors, each of said clamps having oppositely-offset lower por tions, and a rod connected to said clamps and adapted to support the same.

7. The combination with a plurality of parallel trolley conductors, of a single hanger structure therefor comprising means for gripping the several conductors at positions displaced with respect to each other along the conductors and permitting relative movement of the conductors to elfect good contact engagement with passing trolleys.

8. The combination with a plurality of parallel trolley conductors and a messenger cable therefor, of a single hanger structure comprising means for gripping the several conductors at positions offset with respect to each other along the conductors, and means for flexibly connecting said gripping means to each other and to the messenger cable. 7

9. A hanger for supporting trolley conductors in side-by-side relation, comprising a plurality of rigidly-connected jaw mem bers between which said conductors are clamped and a hanger rod having a loop and socket connection with said jaw members.

In testimony whereof, I have hereunto subszcribed my name this 26th day of April, 191

WILLIAM SCHAAKE.

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