Portable crane

Details Portable crane Portable crane

1992-05-07

1993-07-06

Sotelo, Jesus D.

Traversing hoists

Having means facilitating assembly or disassembly

Of traversing hoist from support

212189, 212265, B66C 2378

Patent

active

052246124

ABSTRACT:
A portable crane operable between a first, extended position for lifting loads and a second, collapsed position for transportation includes a handle having first and second ends. A boom having first and second ends is provided such that the first end is pivotally interconnected to the first end of the handle. The boom extends outwardly from the first end of the handle in the crane first position and is disposed parallel to the handle in the crane second position. Structure is provided for supporting the handle first end and extends in a direction opposite the boom in the crane first position. The supporting structure is disposed generally parallel to the handle in the crane second position. A cable extends between the handle second end and the boom second end for receiving loads, such that as the cable is retracted, loads are lifted toward the boom second end.

REFERENCES:
patent: 1958824 (1934-05-01), Jones
patent: 2375799 (1945-05-01), Tourneau
patent: 2675209 (1954-04-01), Freed
patent: 2879902 (1959-03-01), Wilcox
patent: 3310291 (1967-03-01), Wiggins
patent: 3794296 (1974-02-01), Hasstedt
patent: 4049238 (1977-09-01), Brown
patent: 4050587 (1977-09-01), Moen
patent: 4135627 (1979-01-01), McInerney
patent: 4503983 (1985-03-01), Lew
patent: 4730742 (1988-03-01), Feterl
patent: 4782962 (1988-11-01), Hackworth et al.

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