International Correspondence Schools · Scranton, Pa. : The Colliery engineer co. · leaf 490
f actionof the resultant must pass through e. Through C draw C i parallel toR and prolong d e. The moment of R about C equals the pole distance//, multiplied by the intercept // /, since // / is that part of the line drawnthrough C parallel to R, and included between the lines be and de ofthe… … Scale of forces 1=40 lb.Scale of distance 1=40. Fig. 222. E C= 40 X 23 = 920 ft.-lb. Considering the force F3, the intercept is ^/,since F3 is parallel to R, and, consequently, to Cz; also, g tls that partof the line C/included between the sides e d and de, which meet on F3.Measuring ^/, it is…
Railroad engineering
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