F - Mech Eng,Light,Heat,Weapons – 16 – H
Patent
F - Mech Eng,Light,Heat,Weapons
16
H
138/41
F16H 39/02 (2006.01) B66C 13/02 (2006.01)
Patent
CA 1172546
A B S T R A C T A crane hoist drive assembly having a hydraulic motor driven by a variable displacement hydraulic pump and a control circuit for the pump adapted to govern the pump displacement so that the lift generated by said motor is independent of line travel and is adjustably predetermined.
369246
Dunsmuir George H.
Favelle Edward H.
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