Importance

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Abstract

In connection with a gravitationally propelled load carrying system that includes an elongated suspended cable having a load carrying trolley movably supported thereon, an empty trolley retriever assembly adapted to push the empty trolley upwardly on the cable to be in position to take on a load where the assembly includes a plurality of idler pulleys rotationally carried by a base member where each of the pulleys is disposed in rolling engagement with the upper side of the cable to movably support the retriever assembly on the cable at a position intermediate the trolley and the lower terminal end of the cable, a motor driven drive wheel disposed intermediate the idler pulleys that engages the lower side of the cable, and a remotely operable control electrically connected to the motor for operatively rotating the drive wheel and propelling the retriever.

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First Claim