Ludy, Llewellyn V., 1875- [from old catalog], American Technical Society · Chicago, American technical society · leaf 150
ell separated from the exhaust, and the valve-rod stuffing box is exposed to exhaust steam only. This is a goodarrangement for the high-pressure cylinder; if used for a cylinderin which there is a vacuum, air may leak into the exhaust spacethrough the valve-rod stuffing box. With this arrangement,… … Fig. 45. Section of Double-Ported Slide Valve is the same except that it is balanced so far as the steam pressure isconcerned, the power to drive it being only that necessary to over-come the friction due to the spring rings. Fig. 44 shows a section of the piston valve ana the high-pressurecylinder…
Indicators for steam-engines · Steam-engines
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