Traversing hoists – Adjustable to transport or nonuse position – Collapsible inverted 'v' frame supports boom rigging
Patent
1997-04-25
2000-05-16
Brahan, Thomas J.
Traversing hoists
Adjustable to transport or nonuse position
Collapsible inverted 'v' frame supports boom rigging
212299, B66C 2332
Patent
active
060624051
ABSTRACT:
A crane having an upper works rotatably mounted on a lower works, a boom pivotally mounted on the upper works, and a hydraulic boom hoist cylinder to control the angle of the boom. The crane further comprises a mast and a hydraulic cylinder pivotally connected to the upper works. The connection of the mast to the upper works is at a location separate from, and at an elevation below, the elevation of the connection of the hydraulic cylinder to the upper works. The hydraulic cylinder is pivotally connected to the mast and pendently connected to the boom.
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Pech David J.
Wernecke Charles R.
Brahan Thomas J.
Manitowoc Crane Group, Inc.
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