Hawkins, N. (Nehemiah), 1833- · New York : Theo. Audel · leaf 276
are madeas compact and strong as possible for mine service, which isusually exceptionally rough and continuous. They are of thehorizontal type which is best adapted for low passageways andare designed so as to afford easy access to all parts. The pumpsare single acting and the plungers are provided…
Hydraulic machinery · Pumping machinery
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