Handling: hand and hoist-line implements – Spacing hoist bar or frame – Load gripping units
Patent
1982-03-15
1984-07-31
Marbert, James B.
Handling: hand and hoist-line implements
Spacing hoist bar or frame
Load gripping units
294 67AA, B66C 166
Patent
active
044626274
ABSTRACT:
An elongated lift frame, lifted and moved by a crane, has a plurality of transverse spreader bars which may be shifted to different positions along the frame. The spreader bars have extensions in their ends equipped with supports for load hooks. A latch pin at each end of each spreader bar secures its extension in extended or retracted position and secures the spreader bar in a selected position on the lift frame.
REFERENCES:
patent: 3148909 (1964-09-01), Tantlinger
patent: 3244446 (1966-04-01), Bopp
Cranston Machinery Co., Inc.
Marbert James B.
Schermerhorn Lee R.
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