Hawkins, N. (Nehemiah), 1833- · New York : Theo. Audel · leaf 344
he duplex steam pump. Among the attachments included in an outfit for the under-writer pump may be mentioned : an elbow or tee for the suctionconnection with a large suction air chamber, a set of brasspriming pipes with special gate and check valves for the same,an automatic water pressure relief… … Straightway hose valves for the proper number of streamsare placed in the neck to a very large discharge chamber, andthere is also a large discharge opening for connection to thesystem of hydrants and sprinklers. A stroke pointer is attached which travels between grad-uations marked on the yoke,…
Hydraulic machinery · Pumping machinery
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