Handbook for machine designers, shop men and draftsmen (1916)
Halsey, Frederick A. (Frederick Arthur), 1856-1935 · New York, McGraw-Hill book company, inc.; [etc., etc.] · leaf 204
n a ratchet wheel b and a smooth cylindrical shell c. In the position shown in Fig. 5 theright-hand ball drops down into the space below it by its own weight.This one ball is the one that will start the ratchet working. Powerbeing applied to b with motion in the direction of the arrow, this… … Fig. 5. Fig. 6. Figs, s and 6.—Ball friction clutch or ratchet. If the angle a, Fig. 6, between the tangents to the curves of ratchetand shell at points of ball or roller contact is less than, twice the angleof repose, the clutch will either drive or break. That this last is truecan be seen from…
Machine design
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
