Hutton, Frederick Remsen, 1853- [from old catalog] · New York, J. Wiley & sons; [etc., etc.] · leaf 232
e seized by the bore whenthe latter was cold and the pistons were hot. To prevent VAL VE-GEARING. ^95 excessive leakage they must therefore be made steam-tight,by means of spring-rings whose elasticity causes them to springout against the bore while they fit grooves in the pistontightly enough to… … Fig. 162.These rings, nowever, cause friction and wear. When thepiston-valve is used without rings great care must be taken toprevent the possibility of difference of temperature betweenthe piston and its bore. Unequal expansion would cause thepiston to be cramped by the bore, and this must be…
Mechanical engineering · Steam power plants
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