Attachment jib for cranes

Details Attachment jib for cranes Attachment jib for cranes

1984-09-24

1986-02-11

Blix, Trygve M.

Traversing hoists

Having vertically swinging boom

Having specific engager for load

212267, B66C 100

Patent

active

045694540

ABSTRACT:
An attachment jib for supporting various working devices, such as a pipe manipulator, includes a support base which can be rigidly coupled removably with existing elements on the nose block of a telescopic crane boom. The jib includes telescopic sections and its base section is pivotally mounted on the support base and is luffed by power cylinders on such base through a wide angle. The jib contains another power cylinder to control extension and retraction of its fly section carrying the working device. An optional work support platform pivotally connected to the support base may be used either with or without the jib.

REFERENCES:
patent: 3146853 (1964-09-01), Eckels
patent: 3286855 (1966-11-01), Bill
patent: 3292633 (1967-01-01), Milner, Jr.
patent: 3809180 (1974-05-01), Grove
patent: 3828941 (1974-08-01), Coutinho
patent: 3937340 (1976-02-01), Grove
patent: 4106631 (1978-08-01), Lundy
patent: 4141455 (1979-02-01), Henderson et al.
patent: 4155464 (1979-05-01), Hogg
patent: 4179010 (1979-12-01), Ashworth
patent: 4314622 (1982-02-01), Lindquist
patent: 4449611 (1984-05-01), Frey-Wigger

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