Horizontal slewing crane

Details Horizontal slewing crane Horizontal slewing crane

1980-09-29

1981-12-01

Oresky, Lawrence J.

Traversing hoists

Having horizontally swinging boom or bridge

And vertically swinging

212245, 212227, 414682, 414744R, B66C 2354

Patent

active

043031668

ABSTRACT:
A crane having a fixed mast and a boom pivotally mounted at the top of the mast for movement in a horizontal plane through at least 180.degree. and in a vertical plane downwardly from the horizontal plane at any position of the boom relative to the vertical axis of the mast, a load carrying trolley movable along the length of the boom, hydraulic means located at the top of the mast controlling the movement of the boom in the horizontal plane and hydraulic means between the boom and the mast controlling movement of the boom in the vertical plane.

REFERENCES:
patent: 2834480 (1958-05-01), Przyblyski
patent: 2921701 (1960-01-01), Ireland
patent: 3045836 (1962-07-01), Evans
patent: 3073397 (1963-01-01), Balogh
patent: 3098395 (1963-07-01), Haganes
patent: 3430503 (1969-03-01), McLaughlin
patent: 3658187 (1972-04-01), Campbell et al.

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