Locomotive catechism; an up-to-date, practical and complete work on the locomotive--treating on the design, construction, repair and running of all kinds of locomotives .. (1908)
Grimshaw, Robert, 1850- [from old catalog] · New York, The N. W. Henley publishing company · leaf 242
e piston starts out on new stroke. Q. What effect has inside lap upon the time of exhaust com-mencement? A. It delays it. Q. What is the effect, upon the steam distribution, of insideor exhaust lap? A. To prolong expansion, and hasten compression orcushion. THE SLIDE VALVE. 235 Q. Where is inside… … Fig. 137. Slide Yalve with Outside and Inside Lap Added. Q. In case of over-compression, that is, of compression inthe cylinder clearance space up to a pressure greater thanthat in the valve chest, zvhat happens? A. The valve, if it is a plain D slide, rises. Q. What permits it to rise? A. The fact…
Locomotives
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