Cyclopedia of locomotive engineering, with examination questions and answers; a practical manual on the construction care and management of modern locomotives (1916)
Swingle, Calvin Franklin, 1846- [from old catalog] · Chicago, F. J. Drake & co., pub. for Sears, Roebuck & co. · leaf 186
thepacking strips preventing the steam from entering PISTON VALVES AND BALANCED VALVES i$»j his space, and the small hole X, communicating withhe exhaust cavity in the valve, relieves space R frommy possible accumulation of pressure. The four packing strips consist of two longer ones,vhich are… … Figure 88 is placed which holds these strips in position againstthe balance plate when steam is shut off. In operation these different sections maintain a steam-tight contact, by a direct steam pressure, with thebalance plate and with the inner surfaces of thejgrooves provided to receive them, the…
Locomotives
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