Machinists' and draftsmen's handbook, containing tables, rules and formulas, with numerous examples explaining the principles of mathematics and mechanics as applied to the mechanical trades; intended as a reference book for all interested in mechanical work (1910)
Lobben, Peder, 1858- · New York, D. Van Nostrand company · leaf 371
are of the same size ; but if the pulleys are of dif-ferent sizes, the diameter of the steps must be calculated fortwo steps as well as if there were more. It is evident from Fig. 2, that an open belt will be tighterover the largest and the smallest pulleys than it would be overthe two middle… … A convenient way to solve this is: First calculate pulleysthat will give the required speed, and of such sizes that the sumof the diameters of the two steps which are to work togetherAvill be equal, then calculate the length of the belt when layingon the largest and smallest steps, with a given…
Mechanical engineering
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