The steam engine and turbine; a text-book for engineering colleges (1911)
Heck, Robert Culbertson Hays, 1870- · New York, D. Van Nostrand company · leaf 386
n. For an autographic diagram, to be drawn by the engine and to serveas a test of the working of the valve gear, especially with releasing § 37 (c)] SIMPLE SLIDE VALVE, WITH HARMONIC MOTION. 369 gears of the Corliss and similar types, this elliptical curve is the mostconvenient, the motions… … Fig. 226. — Evolution of the Valve. shown at I, where the valve just covers the port when in mid-position,and is driyen by an eccentric at right angles to the crank, so that itsmid-position coincides with the dead center. This arrangement hasthe very decided fault that the admission is too long,…
Steam-engines · Steam-turbines
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