Machinery and processes of the industrial arts, and apparatus of the exact sciences (1869)
Barnard, Frederick A. P. (Frederick Augustus Porter), 1809-1889 · Washington, Govt. print. off. · leaf 115
Fig. 22. Fiff. 23. in a circle by the simultaneous action of both pistons. The smaller pis-ton is shown separately in Fig. 24, and the crank in Fig. 25. Fig. 23 rep-resents a plate which closes the steam-box or cylinder, Fig. 21, the sur-face presented being that which is external when the plate is… … Fiff. 24. The circular chamber shown in Fig. 23 is the valve box, which is closed byanother plate screwed over it. The steam, which is admitted from above, enters at K and is conducted tothe valve-box by a passage inthe plate Fig. 23, not seen.From the valve-box it is ad-mitted to the cylinder…
Machinery · Scientific apparatus and instruments
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