Minutes of proceedings of the Royal Artillery Institution (1858)
Great Britain. Army. Royal Artillery Institution · Woolwich, Eng., : The Institution · leaf 330
274 MINUTES OE PROCEEDINGS Substituting in (1), Tension of rope x OB sin a = JF. OB cos 0 + w\ OB cos 0. .\ Tension of rope = (W + \w) . . . (2) This divided by 8 or by 10, as the case may be, for the mechanical advantage gained by the arrangement of the guy and runner tackle will give the force to… … AB is the part of the spar bearing the strain acting vertically in the direction AC, it may be resolved into two forces, AB tending to break the spar, and BC tending to force the end at JS into the ground. The triangles ABC and BOB are similar, and AB = AC cos BAC = W cos a; breaking strain = W cos…
Artillery -- Periodicals · Artillery -- Great Britain -- Periodicals
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