Traversing hoists – Having counterweight or counterbalancing means
Patent
1991-09-24
1993-06-29
Peters, Jr., Joseph F.
Traversing hoists
Having counterweight or counterbalancing means
212196, 212198, 212178, B66C 2372, B66C 2376
Patent
active
052226131
ABSTRACT:
A pivotally-mounted reeved counterweight system for a counterbalance-type crane which includes a wheeled counterweight carriage supporting a counterweight. A yoke provides the coupling means pivotally connecting the carriage and the rearward end of the platform or deck also known as the counterweight arm. A sheave is mounted on the yoke. The rope, which manipulates the boom upwardly and downwardly, retractably and extensibly extends from a hoist drum on the platform upwardly and is reeved about a mast sheave and extends downwardly, rearwardly and upwardly between the yoke sheave and a plurality of platform sheaves and mast sheaves.
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1100 SUPER SKY HORSE Machine Specifications Am. Hoist & Derrick Company.
900 Serils SKY HORSE Counterblaance Crane American Hoist & Derrick Company.
Lee Kenneth
Peters Jr. Joseph F.
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