at the angle made by the prolonged sides of the be equal to r1; that of r3 equal to R1, that of R l equal to belt can bs neglected, or if the two pulleys are of equal r; and that of r4 equal to R ; thus making th e several •liameter, the length of the belt is found by adding to speeds of the two… … larger this angle, the longer must be know that our labors and the increased eecpense we are tends up through the follower and terminates in a square the belt in proportion to the distance part, so that it can easily be turned with a wrench or key incurring in our New Series are being appreciated…
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