Traversing hoists – Boom position lock
Patent
1997-12-18
2000-05-16
Brahan, Thomas J.
Traversing hoists
Boom position lock
212350, B66C 2304
Patent
active
060624043
ABSTRACT:
The device and method for arresting movement of sections in a telescopic jib, which includes at least a first section and a second section and a telescopic cylinder telescoping the second section along a longitudinal axis of the telescopic jib relative to the first section, telescopes the second section using the telescopic cylinder to a desired working position. Then, movement of the second section is arrested using at least one sliding element connected and moveable with respect to the second section. The sliding element is disposed between the first and second sections, and arrests movement of the second section with respect to the first section when in an arresting position.
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Brahan Thomas J.
Grove U.S. L.L.C.
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