Radial Flank Angles & Sines, A Useful Companion Booklet to The Clock and Watch Makers Guide to Gear Making by Robert Porter

Radial Flank Angles & Sines, a useful companion booklet to The Clock & Watch Makers Guide To Gear Making. This booklet is a list of the radial flank angles for over 150 gears listed in the Guide To Gear Making, as well as the sine value for each radial flank angle, and the calculated "X" dimension for the three-inch sine bar used to make gear cutters. ALL YOUR SINE BAR CALCULATIONS ARE DONE FOR YOU. You are also shown how to easily calculate the radial flank angle for four different gear tooth widths without using trigonometry. This companion booklet should make horological gear making much easier by doing the sine bar calculations for you.