The engineer's sketch-book of mechanical movements, devices, appliances, contrivances and details employed in the design and construction of machinery for every purpose; (1902)
Barber, Thomas Walter. [from old catalog] · New York, Spon & Chamberlain · leaf 311
o6 TEE ENGINEERS SKETCH-BOOK. 2101. Double hoisting barrels, geared together; the rope passes roundboth barrels. The Otis low pressure elevator (hydraulic) is worked froman overhead air accumulator at 80 lbs. pressure, the hydrostatichead being 40 lbs. There is one descending main pipe connectedto…
Mechanical movements
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