Inside Out Library

I.C.S. reference library : a series of textbooks prepared for the students of the International Correspondence Schools and containing in permanent form the instruction papers examination questions, and keys used in their various courses (1904)

International Correspondence Schools · Scranton : International Textbook Co. · leaf 278

An illustration from I.C.S. reference library : a series of textbooks prepared for the students of the International Correspondence Schools and containing in permanent form the instruction papers examination questions, and keys used in their various courses, 1904, leaf 278 — as shown, it willbe raised vertically, by one revolutionof the screw, a distance equal to thepitch. During this revolution, the forceat J-* will move through a distance equalFig. 41. to the circumference of a circle whose radius is P F. Therefore, ]V X />ttc/i of thread = P X cir-cmnfcrcnce of… … 54 MACHINE ELEMENTS. § 5 exerted by it in the direction of its axis, is far less than thatcalculated on the assumption that friction does not exist.The friction depends on the pitch, the condition of thethread on the screw and in the nut, and the nature of thelubricant. From a long series of…

Bookkeeping · Textile fabrics · Textile factories

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