Multi-directional lifting and handling attachment for a crane bo

Details Multi-directional lifting and handling attachment for a crane bo Multi-directional lifting and handling attachment for a crane bo

1979-05-09

1981-07-28

Reeves, Robert B.

Material or article handling

Vertically swinging load support

Grab

294 74, 414 10, 414 23, 414743, B66C 100, B66C 118

Patent

active

042807859

ABSTRACT:
A pipe, beam or other work piece is detachably secured to a handling device affixed to the extremity of a conventional telescoping crane boom, the handling device including a main frame, a sub-frame, and a work piece support frame. Respective hydraulic actuators selectively position the sub-frame relative to the main frame and the support frame relative to the sub-frame. One actuator rotates the sub-frame about a transverse axis and the other actuator rotates the support frame about a longitudinal axis. The work piece supporting frame includes means for detachably holding a work piece during handling periods, permitting the work piece to be positioned at any desired attitude, orientation and elevation by appropriate actuation of the hydraulic system.

REFERENCES:
patent: 2634826 (1953-05-01), Welden
patent: 3112037 (1963-11-01), Thiermann
patent: 3272347 (1966-09-01), Lemelson

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