Portal crane with additional load carrier

Details Portal crane with additional load carrier Portal crane with additional load carrier

1993-11-03

1995-04-11

Huppert, Michael S.

Traversing hoists

Having horizontally swinging boom or bridge

Having fluid ram directly actuating load cable or sheave...

212220, 212234, B66C 1706

Patent

active

054050294

ABSTRACT:
A crane comprising a horizontally extending frame having a longitudinal axis, the frame being supported above the ground for horizontal movement generally perpendicular to the longitudinal axis; a trolley supported on the frame for movement generally along the longitudinal axis; a mechanism for engaging and disengaging a load; a hoist mounted on the trolley for causing vertical movement of the mechanism; and a carrier connected to the frame for movement with the frame, the carrier being positioned such that the trolley, hoist and mechanism are operable to deposit a load in the carrier.

REFERENCES:
patent: 849920 (1907-04-01), Seaver et al.
patent: 1057735 (1913-04-01), Hertz
patent: 3487957 (1970-01-01), Brewer
patent: 3807582 (1974-04-01), Anderson
patent: 4018349 (1977-04-01), Hupkes
patent: 4106639 (1978-08-01), Montgomery et al.
patent: 4293077 (1981-10-01), Makino
patent: 4642017 (1987-02-01), Fenn

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