Hawkins, N. (Nehemiah), 1833- · New York : Theo. Audel · leaf 362
located about Y^ or Vz inchback from the cylinder head. (The exact position for affording the bestaction has to be determined by experiment with each different make ofpump, as it depenQs somewnai on tne extent 01 clearance space and on tnc Steam Fire Pumps. 3fi: point of closure of exhaust by…
Hydraulic machinery · Pumping machinery
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