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Trolley pole mechanism for use on electrically-powered road vehicles

  • US 4,357,501 A
  • Filed: 09/24/1980
  • Issued: 11/02/1982
  • Est. Priority Date: 09/25/1979
  • Status: Expired due to Term
First Claim
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1. A trolley pole mechanism for use on an electrically powered road vehicle fitted with an auxiliary power source, the mechanism drawing power from a pair of overhead lines when in a deployed or raised position and comprising two trolley poles, each of said poles articulated to the roof of the vehicle and supporting a contact head, lifting means supporting a terminal unit comprising an isolating cross member, means for maintaining said cross member perpendicular to the longitudinal axis of the vehicle and manipulating means being clamped to said contact heads while said lifting means are being raised, said manipulating means being mounted on and movable transversely of said terminal unit, laterally outwardly disposed sensors being fitted on said manipulating means, said cross member being responsive to contact with said pair of overhead lines for transversely moving said manipulating means from respective ends of said cross member so that said sensors contact said overhead lines, thereby bringing contact heads into contact with respective overhead lines.

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