Locomotive engine running and management .. (1899)
Sinclair, Angus, 1841-1919 · New York, J. Wiley & sons; [etc., etc.] · leaf 255
ng the valve at its greatest velocity. Lengthen-ing the valve-face by providing lap entails a change inthe location of the eccentric; for, were it left in theright-angle position, the steam-port would remain cov-ered till the eccentric had moved the valve a distanceequal to the extent of the lap on… … Fig. io. to the extent of lap and lead, and known as the angu-lar advance of the eccentric. The centers F and Brepresent the full part, or belly, of the forward and THE VALVE-MOTION. 207 back eccentrics in the position they should occupy,where a rocker is employed, when the piston is at…
Locomotives
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