Twentieth century handbook for steam engineers and electricians, with questions and answers; a practical nontechnical treatise .. (1916)
Swingle, Calvin F. (Calvin Franklin), b. 1846 · Chicago, F.J. Drake & company · leaf 636
which them moves up-wards, opening more valves to satisfy the demand for steam.In moving up the piston transmits its motion through rodF to the piston valve B, restoring it to the central position.When operating on a fixed, or slightly varying load, themain piston should not continuously move over… … Fig. 262 tance greater than this. Any larger movements shouldonly occur when greater or less power is demanded for 624 Steam Engineering considerable variation in load. Any continuous openingand closing of the valves during a steady load is an indi-cation of excessive friction in the governor…
