Hawkins, N. (Nehemiah), 1833- · New York : Theo. Audel · leaf 286
The valve is operated by the steel cam, C, acting on a steelpin, D, which passes through the valve into the exhaust port,N, in which the cam is located. In addition to this positivemotion steam is alternately admitted to and exhausted fromthe ends of the valve piston through the ports, E and E,,…
Hydraulic machinery · Pumping machinery
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
