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 303
ry valve. 2834. Screw pump for applying heavy pressure to a ram; sometimesused as an adjunct to give the final heavy pressure to an hydraulicpress after the pumps have forced the ram as far as their powerpermits, 2335. Duplex-action pump, in which both piston and cylinder move in opposite… … £334 V; f^^y^:w/ 2335. 2336 1
Mechanical movements
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