Hutton, Frederick Remsen, 1853- [from old catalog] · New York, J. Wiley & sons; [etc., etc.] · leaf 228
hts of the H are the work-ing-parts of the valve, and the cross-bar between is madehollow and fits the exhaust-port, whose length is at rightangles to the length of the steam-ports (Fig. 148). VAL VE-GEARING. 191 lOi. Shortening the Throw of the Valve. Allen Valve. —Another expedient for… … Fig. 148. condition. If by keeping the throw of the eccentric largerthan the throw of the valve, there is yet opened an equalport-area with such reduced throw, there has been given tothe eccentric a mechanical advantage to overcome the pressurewhich holds the valve at its seat. Fig. 149 shows the…
Mechanical engineering · Steam power plants
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