A textbook on mechanical and electrical engineering (1898)
International Correspondence Schools · Scranton : International Textbook Co., [1898-99] · leaf 364
, and 18 inches,(a) how great a force must be applied at the free end P to raise 1,000pounds at ^F? (i^) What is the ratio between/ and /F? Solution.— /• x 24 x 18 X 30 = 1,000 x 6 x 6 x 18, _ 648,000 rn ^ A or P — ^, ,„.„ = 50 pounds. Ans.12,960 50 :1,000 = 1 : 20, or /•: W^= 1 : 20. Ans.… … Fig. 143. before, P X distance through which it moves ■=Wy, dis-tance through which it moves; and, since these distancesare proportional to the radii of the power cylinder andweight cylinder, PxFc=]VxFb. It is not necessary that an entire wheel be used; an arm,projection, radius, or anything…
Electrical engineering · Mechanical engineering
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
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