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 213
lve. 1669. Duplex slide, used to close a number of openings at onoe 1670. Wests spiral valve, with indiarubber cord which expands and contracts over a spiral perforated groove. 1671. Dennis self-lifting valve. The valve is kept to its seat bv the pressure being admitted on to its back through small… … 2o8 THE ENGINEERS SKETCH-BOOK. 1673. Equilibrium plug or cylindrical valve, double ported. 1674. Another form of self-lifting valve. See No. 1671 for description. 1675. Compound flap valve. 1676. Indiarubber pump valve. 1677. Venetian shutter or compound butterfly valve. 1678. Bye pass used to…
Mechanical movements
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