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 819
762 LOCOMOTIVE ENGINEERING … WALSCHAERT VALVE GEAR 763 points R, R\ R2, R3, etc. On OH we have the full travelvalve circle and OL the lap or radius of the lap circle,the latter being the same for all cut-offs, as well as thelead, the radii H1, H2, H3, etc., of the eccentric circles ordiameters of the corresponding valve…
Locomotives
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