Trolley pole raising and lowering apparatus

Details Trolley pole raising and lowering apparatus Trolley pole raising and lowering apparatus

B - Operations, Transporting

60

L

335/21

B60L 5/12 (2006.01) B60L 5/16 (2006.01)

Patent

CA 1258105

ABSTRACT OF THE DISCLOSURE A trolley pole is supported on a vertical shaft so as to be rotatable from side to side while in its elevated, operating position. The shaft is supported on a support structure which is tiltably mounted on a base plate on a vehicle. The base plate can be tilted by extending the arm of a linear actuator. When the base plate is tilted, the pole is lowered and centered and a gravity operated latch structure comes into effect to maintain the pole centered whenever it is not in its operating position. A control circuit for operating the actuator is disclosed.

511697

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