B - Operations – Transporting – 66 – B
Patent
B - Operations, Transporting
66
B
187/6
B66B 9/04 (2006.01)
Patent
CA 1236032
13 52,065 ABSTRACT OF THE DISCLOSURE A hydraulic elevator system having a tunnel member as part of the car frame, to reduce the pit depth required for a hydraulic jack. A stabilizer for the plunger of the hydraulic jack is disposed within the tunnel member, with the stabilizer being releasably fixed to the cylinder head of the hydraulic jack while the cylinder head is within the tunnel member. The stabilizer is released from the cylinder head, to remain within the tunnel, as the car rises and the bottom of the tunnel member starts to rise higher than the cylinder head, to provide an addition- al lateral support point for the plunger, within the tunnel, which is spaced from the cylinder head, which is now below the lower end of the tunnel. The lateral support function provided by the stabilizer functions without any relative motion between the stabilizer, plunger and tunnel member.
484803
Oldham And Company
Westinghouse Electric Corporation
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