Hill, John A. (John Alexander), 1858-1916, Sinclair, Angus, 1841-1919 · New York : American Machinist Pub. Co · leaf 631
aftsmen engaged(including appren-tices), varies from 40to 50, according to theamount of work onliand, while there arein addition thereto«me score or so ofgirls employed i nmaking the workingtracings. The me-Takiug all tne other points in the same manner chanical operations are carried on in a… … by points which are to be connected as before. One more view ot this conic section is shown inFig. 100. whore we have a front elevation showingthe section foreshortened. Draw outline of cone, using Fig. 97 from whichto lake the ditnensions, and from circumference of-»ame tigure take the exterior…
Railroads · Locomotives
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