Millikan, Robert Andrews, Gale, Henry Gordon · Boston : Ginn and Co. · leaf 522
Fi(i. 482. Yale luck(1), the right key; (2), the wrong key 8. In the Yale lock (Fig. 482) the cylinder G rotates inside thefixed cylinder F and works the bolt through the arm H. The right keyraises the pins a, ¥, c, d, e until their tops are just even with the topof G. What mechanical principles do… … Fig. 483. Differentialwindlass 9. A lever is 3 ft. long. Where must the fulcrum be placed so that a.weight of 300 lb. at one end shall be balanced by 50 lb. at the other? 10. Two horses of unequal strength mustbe hitched as a team. The one is to pull360 lb., while the other pulls 288 lb. Ina…
Physics
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