per driven each by a separate motor. A large gear wheel electric brakes on these vehicles, as well as on those of second. A foot pound is the amount of work required to is fixed to the main axle, on the inner side of the driv- raise one pound vertically through ing wheel, and engages directly a… … driving mechanism. lamp to a height of four hundred The motors used in these differ- miles at a velocity of nearly seven ent arrangements are of the Postel- miles per minute. Yes, it pays a Vinay type, and weigh from 60 to 150 kilogrammes, man to expend a little pains on mastering the ordinary most…
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