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 331
Removable valve seat, or gland, secured by three set screws and lugs inside the valve box. 2538. Safety valve, with double ball joint seatings, held down by dead weight, hung on the outer case. 2539. Oscillating ring valve. High-pressure hydraulic slide valves are now made of hardwood, such as…
Mechanical movements
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