Gantry crane with plural hoist means

Details Gantry crane with plural hoist means Gantry crane with plural hoist means

1975-12-03

1977-06-07

Spar, Robert J.

Traversing hoists

Overhead

Cable

212 3, 214 12, 214 15R, 254184, 114259, B66C 502

Patent

active

040278000

ABSTRACT:
A gantry crane and gantry crane reeving are provided having two pairs of drums on each side of said gantry, an upper sheave assembly on the gantry above each drum, each drum having a pair of independent cables reeving from the drum to said upper sheave assembly above it on the gantry, a lower relatively movable sheave assembly below each upper sheave assembly, one cable from each pair of cables passing over one sheave of the upper sheave assembly and downward around the lower sheave assembly and back over the upper sheave assembly and dead ending at the lower sheave assembly, the other cable from each pair of cables passing over a sheave of the upper sheave assembly across the gantry to the opposite upper sheave assembly on the other side of said gantry and downwardly to the lower sheave assembly on said other side and back over the said opposite upper sheave assembly and dead ending at the said opposite lower sheave assembly.

REFERENCES:
patent: 3552344 (1971-01-01), Wilson
patent: 3756446 (1973-09-01), Macrander

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