Material or article handling – Guided hoist with load-supporting grab means movable...
Patent
1985-02-25
1987-03-10
Spar, Robert J.
Material or article handling
Guided hoist with load-supporting grab means movable...
414751, 104 89, 212140, B66C 708
Patent
active
046487778
ABSTRACT:
A conveyor system comprises a runway rail in the form of an extruded hollow body of oblong cross-section. The runway rail has a top portion which includes a pair of parallel surfaces including between them an angle. A similar pair of parallel surfaces is disposed at the bottom portion of the runway rail, which surfaces are parallel to respective surfaces of the top portion and include the same angle. A crab having load and guide wheels is disposed on the runway rail, the load wheels engaging the pair of surfaces at the top portion and at least one guide wheel engaging one of the surfaces at the bottom portion. A driving motor mounted to the lateral flange of the crab is adapted to drive the crab along the runway rail by engaging a stationary drive element mounted to a side rail of the runway rail. A hoist mounted to the crab serves to raise and lower work pieces. The runway rail can be strengthened by mounting two runways in abutting relationship, one above the other, or by inserting a square tubing into the hollow body.
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patent: 4520733 (1985-06-01), Willmann
Branson Ultrasonics Corporation
Dayoan D. Glenn
Feig Philip J.
Spar Robert J.
Steinberg Ervin B.
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