Crane with luffing system suitable for handling both general car

Details Crane with luffing system suitable for handling both general car Crane with luffing system suitable for handling both general car

1977-12-22

1979-09-25

Makay, Albert J.

Handling: hand and hoist-line implements

Spacing hoist bar or frame

Load gripping units

294 67DA, B66C 162

Patent

active

041688570

ABSTRACT:
A crane with luffing system, in which at least two front pulleys are present, slightly interspaced from each other. Over the front pulleys run hoisting ropes to a hoisting trestle carrying the load hook. The hoisting trestle is connected to a slewing table via a torsion-resistant rope frame. The slewing table is composed of two separate plates rotatable relative to each other, of which the lower one is connected via a torsion-resistant rope frame to a container spreader to which a container may be secured. Through rotation of the lower slewing plate relative to the upper one it is easy to accurately maneuver a container suspended by the crane.

REFERENCES:
patent: 1865739 (1932-07-01), Bergmann
patent: 1976014 (1934-10-01), Forsythe
patent: 3210114 (1965-10-01), Lawton
patent: 3842986 (1974-10-01), Hupkes
patent: 3899083 (1975-08-01), Flessner et al.

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