Supplementary jib for a floating crane having a derricking main

Details Supplementary jib for a floating crane having a derricking main Supplementary jib for a floating crane having a derricking main

1976-09-02

1978-03-14

Hoffman, Drayton E.

Traversing hoists

Overhead

Cable

212144, B66C 2352

Patent

active

040786668

ABSTRACT:
A supplementary jib for a floating crane having a derricking main jib is racterized in that the hinge (bearing) of the supplementary jib is located in proximity or coincides with the hinge of the main jib. The main jib is incorporated in the crane system by virtue of compression struts and guy ropes meeting at the head of the main jib.

REFERENCES:
patent: 3828938 (1974-08-01), Glushko et al.

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