<p>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.</p>
申请公布号
CA1172546(A)
申请公布日期
1984.08.14
申请号
CA19810369246
申请日期
1981.01.23
申请人
FAVELLE, EDWARD H., 137 GEORGES RIVER CRESCENT OYSTER BAY, NEW SOU
发明人
FAVELLE, EDWARD H., 137 GEORGES RIVER CRESCENT OYSTER BAY, NEW SOU
