Handbook for machine designers, shop men and draftsmen (1916)
Halsey, Frederick A. (Frederick Arthur), 1856-1935 · New York, McGraw-Hill book company, inc.; [etc., etc.] · leaf 459
n the forward and reverse gears see theauthors Slide Valve Gears. Friction of Slide Valves The friction of slide valves formed the subject of experiments byJ. A. F. AspiNALL (Proc. I. C. E., 1898). The experiments wereupon two horizontal locomotive valves, one an ordinary unbalancedvalve of… … Fig. 32.—The Bilgram diagram applied to a Stephenson link motion. min., and it was found that there was a perceptible improvement inthe ease of movement of the valve when the lubricant was increased. The experiments show that the friction of slide valves is somewhatgreater against a horizontal than…
Machine design
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