Crane jib arrangement

Details Crane jib arrangement Crane jib arrangement

1973-10-10

1976-08-03

Paperner, L. J.

Traversing hoists

Overhead

Cable

212 44, B66C 168

Patent

active

039724301

ABSTRACT:
A crane jib includes a support, a base arm pivoted in the support, and a jib lever pivotally connected to the base arm. The jib lever supports at its free end a work tool and is oscillated on its support by two hydraulic jacks, the first of the jacks is placed at a point from the journal place of the base arm, while the second jack is placed adjacent the jib lever. The second hydraulic jack has its line of action approximately parallel to a line through the bearing points of the base arm, while its lower bearing point is disposed at a lower level than the bearing place of the base arm.

REFERENCES:
patent: 2788143 (1957-04-01), Tendresse

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