Attachment jib for cranes

Details Attachment jib for cranes Attachment jib for cranes

1984-09-24

1985-12-31

Blix, Trygve M.

Traversing hoists

Having vertically swinging boom

Having means to swing boom vertically

212264, 182 2, 414607, B66C 2356, B66C 2304

Patent

active

045615527

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: Re30021 (1979-06-01), Olson et al.
patent: 3146853 (1964-09-01), Eckels
patent: 3521759 (1970-07-01), Gardenhour
patent: 3690408 (1972-09-01), Reske et al.
patent: 3907142 (1975-09-01), Welch
patent: 3937340 (1976-02-01), Grove
patent: 4141455 (1979-02-01), Henderson et al.
patent: 4179010 (1979-12-01), Ashworth
patent: 4274793 (1981-06-01), Frey-Wigger
patent: 4382743 (1983-05-01), Newell
patent: 4394914 (1983-07-01), Privat

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