Modern locomotive engineering, with questions and answers .. (1913)
Swingle, Calvin Franklin, 1846- [from old catalog] · Chicago, F. J. Drake & co · leaf 130
team may be cut offbefore the piston reaches the end of its stroke, and thesteam thus enclosed within the cylinder be made to dothe work throughout the remainder of the stroke byreason of its expansive properties, and secondly, it Figure 57 causes the exhaust port at one end of the cylinder tobe… … Figure 58 Another bad effect of no lap would be a late exhaust,by which is meant that the exhaust would occur at oneend of the cylinder at practically the same momentthat admission occurred at the other end. This wouldhave a tendency to retard the motion of the piston.The term clearance, as applied…
Locomotives
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