B - Operations – Transporting – 66 – C
Patent
B - Operations, Transporting
66
C
B66C 23/683 (2006.01) B66C 23/42 (2006.01) B66F 11/04 (2006.01)
Patent
CA 2287580
A lift method and apparatus for moving an arm structure includes a first arm structure and a second arm structure pivotally connected to the first arm structure. The apparatus further includes a moving device and a displacing link for displacing the moving device relative to at least the first or second arm. The displacing link provides the moving device with a mechanical advantage whereby work required to move the second arm structure is substantially reduced while lifting capacity of the second arm structure and the moving device is substantially increased, and the range of motion of the second arm structure relative to the first arm structure is also increased.
Grove U.s. L.l.c.
Mcfadden Fincham
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