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 160
is, howevet, but a trifling increase in wear downto 30 deg., no serious increase down to 20 deg., and no destructiveincrease down to about 12 deg. Where gears are to transmit consid-erable power, the best results should attend the use of angles between30 and 45 deg., while angles as low as 20 deg.… … Follower L^
Machine design
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
