Hill, John A. (John Alexander), 1858-1916, Sinclair, Angus, 1841-1919 · New York : American Machinist Pub. Co · leaf 542
rosshead to hecut on line/.f; this will give us a transverse sec-tion looking toward the journal. In order to draw this section, produce the lopand hollom lines of longitudinal section a conveni-ent distance, also the center line, and erect a per-pendicular at such a distance from the section… … The center lines are the poinia from which alldimensions are to be laid off, same as when makingthe drawing. Intersection of center lines at sides forms the cen-ters on which Ihe journal is to be turned; intersec-tion of center lines at cod locales the center of holefor piston fit, Ihe core of…
Railroads · Locomotives
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