Hoist, trolley suspension, rigid model, spur geared, low headroom, spec: mil-h-904e, class i, type g. Type trolley-geared. Type lift: link chain, grade 3. I-beam track size: 5 in x 14.75 ft straight track. Hook travel: 6ft. Hand chain dok travel: 6ft. Hand chain drop: 2 ft x 4 in (spark resistant hand chain). Turnabike operating circle: 34 in (dia). Traversing method: positive drive, ssprocket engaging a 1 in pitch number 80 asa roller chain welded tothe under side of the beam. No-back double acting weston brake. Canvas chain container and hook latch. No iron or aluminum load bearing castings. Bumpers and safety lugs. Special label plate. No welds except hoist hand wheel, load and hand chains and hook nut. Per chester drawing c-21785 (ref drawing d-20868 with modifications)
No other part numbers with same form, fit, and function found.
A device designed to be suspended above deck, floor or ground level having one or more revolving whelped wheels over which a chain is passed for the purpose of raising or lowering a load. May be suspended so as to travel on a fixed track.
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