US714608A - Trolley-guard. - Google Patents

Description

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CHARLES O. PRINCE, OF CANTON, OHIO, ASSIGNOR OF ONE-HALF TO GEORGE M. HEDRICK, OF CANTON, OHIO.

TROLLEY-GUARD.

SPECIFICATION formingpart of Letters Patent No. 714,608, dated November 25, 1902.

Application filed `September 2, 1902. Serial No. 121,780. (No model.)

To LZZ whom. .it may concern.: v

Be it known that I, GHARLESO. PRINCE, a citizen of the United States, residing at Canton, in the county of Stark and State of Ohio, have invented a new and useful Trolley- Guard, of which the following is a speciiication.

`My invention relates to a guard for a trolley-pole to prevent the same from springing `3, a side elevation of a trolley and wire, showing the guard in section.

Similar numerals refer to similar parts through the drawings.

The cross-bar l is attached by an adjustable joint, as 2, on the upper side near the wheel of the trolley-pole 3. The side arms 4. are pivoted in the ends of the cross-bar, with a sprin g acting to rotate the arms upward and forward. In the construction as illustrated, which I prefer, the cross-bar is made of a tube,

\ and the side armshave Shanks 4.a extended j into the tube from the ends to near its middle, and the coil-springs 5 are attached to the `bearings 6 near the middle of the tube and to the arm-Shanks near the outer ends of the tubes. The arm-Shanks are provided with annular recessed journals 7 for the bearings 6 and turn in the bearings 8, which close the ends of the tubes. V The parts are so arranged that the side arms 4. stand upward, or nearly so, when the trolley-wheel 9 is normally engaged with the feed-wire 10, as shown in Fig. 3, and the arms are prevented from rotating forward by the stops 1l, projecting from the ends of the tube, or by other suitable means. The auxiliary arms 12 project forward preferably at right angles from the side arms at the cross-bar to ride the feed-wire with less.

friction; but this roller can be omitted, in which event the feed-wire comes in direct contact with the cross-bar.

When the trolley-wheel leaves the feedwire and the trolley-pole springs upward, the roller or cr0ss-bar,as the case may be,promptly strikes the wire and slides thereallong and holds the trolley-pole down. The side arms prevent the Wire from slipping 0E the ends of the cross-bar, and whenever a side arm strikes an obs tacle-as, for, instance,the crosswire lll-the side arm rotates backward and downward, thus clearing the obstacle, andat the same time the auxiliary arm rotates upward and backward to take its place and perform its function as a guard perchance the trolley-wheel should jump off` the wire when the side arm is-so deflected. As soon as the obstacle is passed the side arm returns to its normal position by action of the coil-spring.

It will be understood that side arms can be pivoted at the ends of the cross-bar in a different manner than that illustrated and described without affecting the nature of my invention and that other forms of springs can be used to hold the arms upward, and also if the springs are so adjusted that the arms are directed upward when the springs are at rest the stops can be omitted from theends of the tube. Two or more auxiliary arms can also be used to be available as guards one after another; but it is not likely that more than one will ever be needed in ordinary practice.

The safety-bar l5 extends from the end of the auxiliary arm to the side arm intermediate of its ends and acts to carry any' obstacle which may enter between the side :arm and the auxiliary arm over the end of the latter.

The roller 13 has electrical contact with the trolley-pole, so thatwhen the trolley-wire is riding on the roller the car can be operated independently of the ordinary trolley-wheel,

bar, and springs acting tohold said arms'upward. y

3.'The combination of a trolley-pole, a cross-bar adjustably attached on said pole near its upper end, arms pivoted at the ends of said bar, and springs acting to hold said arms upward. s

4.The combination of a trolley-pole, a cross-bar on said pole near its upper end,

'y arms pivoted at the ends of said bar, springs acting to rotate said arms upward and forward, and stops acting to hold saidarms from rotating forward and downward.

5. They combination of a trolley-pole, a cross-bar on said pole near its upper end, side arms pivoted at the ends of said bar, springs acting to hold said arms upward, and auxiliary arms directed forward from the side arms, at or near their pivotal points.

6. lA trolley-guard composed of a cross-bar, arms pivoted at the ends of Jsaid bar, and springs acting to hold said arms upward.

7. A trolley-guard composed of a cross-bar,

arms independently pivoted at the ends of said bar, and springs acting to hold said arms upward.

8. A trolley-guard composed of a cross-bar, arms pivoted at the ends of said bar, springs acting to rotate said arms upward and forward, and stops acting to hold said arms from rotating forward` and downward.

9. A trolley-guard composed of a cross-bar, side arms pivoted at the ends of said bar, springs acting to hold said side arms upward, and auxiliary arms directed forward from the side arms at or near their pivotal points.

10. A trolleyguard composed of a crosstube, arms pivoted at the ends of said tube by shanks extending therein, and coil-springs in saidtube and around said Shanks, acting to hold said arms upward.

11. A trolley-guard composed of a crosstube, arms pivoted at the ends of said tube by Shanks extending therein, coil-springs acting to rotate said arms upward and forward, and stops acting to hold said arms from rotatingforward and downward.

12. The combination of a trolley-pole, a cross-bar on said pole, guard-arms pivotedat the ends of said bar, anda rolleron said crossbar.

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

CHARLES O. PRINCE.

Witnesses:

JOSEPH FREASE, ELsIn MALLORY.

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