Benjamin, Charles Henry, 1856- [from old catalog], Hoffman, James David, 1868- [from old catalog] joint author · New York, H. Holt and company · leaf 334
, /\ir Vent >&utomatie ReVea^e ■jus+able Stop … Fig. 159. The Air Hoist. (Whiting Foundry Equipment Co.) 163. Assignment.—Capacity in free load lb. Weight of parts and friction per cent Air pressure (80 to 100) lb. per sq. in. Lift (2 to 4) ft. The following data may be used for checking, air at 80 lb. per square inch. Diam. of hoist Size of…
Machine design
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