B - Operations – Transporting – 66 – F
Patent
B - Operations, Transporting
66
F
B66F 9/18 (2006.01) B65G 57/00 (2006.01)
Patent
CA 2209980
A clamping apparatus for lifting objects includes a frame and two or more clamping arms pivotably supported by the frame for movement into and out of contact with an object to be lifted. An internal support is supported by the frame for reinforcing the inner walls of a cavity in the object to be lifted. The insert may be supported by the frame for vertical movement with respect to the frame so that when the insert is not needed, it can be raised above the object. The insert may passively reinforce a cavity, or it may be equipped with movable reinforcing portions which can be moved into and out of contact with the walls of the cavity which is to be reinforced
Marks & Clerk
Tygard Machine And Manufacturing Company
LandOfFree
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