Appletons' cyclopaedia of applied mechanics: a dictionary of mechanical engineering and the mechanical arts (1880)
D. Appleton and Company, Benjamin, Park, 1849-1922 · New York, D. Appleton · leaf 632
in the present case, the pressure of the air in the chamber sustains the discharge during the intervalstaken up by the upward strokes of the piston. A pump of this class combined with a portable reser-voir is represented in Fig. 3508. Fig 3509 is an arrangement of lifting- and force-pump so placed…
Mechanical engineering -- Dictionaries
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