Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP48119815Aexternal-prioritypatent/JPS4975794A/ja
Application filed by Japan Steel Works LtdfiledCriticalJapan Steel Works Ltd
Publication of DK408874ApublicationCriticalpatent/DK408874A/da
B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
B66C1/42—Gripping members engaging only the external or internal surfaces of the articles
B66C1/425—Gripping members engaging only the external or internal surfaces of the articles motor actuated
B66C1/427—Gripping members engaging only the external or internal surfaces of the articles motor actuated by hydraulic or pneumatic motors