Traversing hoists – Having vertically swinging boom – Protruding laterally from vehicle
Patent
1977-08-08
1980-10-07
Kunin, Stephen G.
Traversing hoists
Having vertically swinging boom
Protruding laterally from vehicle
212261, 212264, 212189, 414686, 280461A, 212244, B66C 2306
Patent
active
042263310
ABSTRACT:
A hydraulically actuated hoist adapted for mounting on a farm tractor, the hoist including a base of generally inverted T-shaped configuration having a horizontally extending portion and a vertically extending portion, a telescopic boom having one end portion pivotally connected to the vertically extending portion of the base, the hoist also including a pair of downwardly extending support legs fixed to the horizontally extending portion of the base, and an elongate support post pivotally connected to the end portion of the boom remote from the base, the post being adapted to overlie the boom and being pivotable to a vertically extending position whereby the post and the legs cooperate to form a tripodal support for the hoist.
REFERENCES:
patent: 2867333 (1959-01-01), DeShano
patent: 3047160 (1962-07-01), Paul
patent: 3362554 (1968-01-01), Fortier
patent: 3374901 (1968-03-01), Ferwerda
patent: 3848751 (1974-11-01), Holland
patent: 4069922 (1978-01-01), Hawking
Johnson R. B.
Kunin Stephen G.
McKinnon Malcolm R.
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