Vaughan's carding lessons. "For the mill boy" .. (1905)
Vaughan, M[athis] H · [Huntsville? Ala.] · leaf 10
74.4inches of travel; divide this product bj^ 12 and the quo-tient will be feet. 28274.4^12=2356.2.Knowing the circumference of a pulley we find the diam-eter by dividing by the 3.1416. Take the circumference. 113.0976--3.1416=36inches in diameter. VAUGHANS CARDING LESSONS Now add two more pulleys… … and D 8 inches in diameter. If A makes 250 revolutions perminute, what will D make in the same time? To show theprinciple of figuring this example, we will work it by thesingle rule of three. Multiply A by the revolutions ofmain line, 250X24=6000.divide this product by B, 6000-^15=400.revolutions…
Woolen and worsted manufacture
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
![An illustration from [Electric engineering.] (1902)](https://img.insideoutlibrary.com/img/200/ia-electricengineer02inte-201-94.webp)
