NASA NTRS · 19820000083
Lock for Gantry Trolley
Abstract
Single operator on ground controls trolley-locking mechanism on portable gantry. Mechanism prevents trolley and load from moving along track when gantry is wheeled from one location to another. A downward pull on chain withdraws brakeshoes from trolley wheels. When operator releases chain, brakeshoes reengage to wheels.
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Newberg, H. F.. 1982-12-01. Lock for Gantry Trolley. https://ntrs.nasa.gov/citations/19820000083
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