Notes on technical sketching and free hand lettering for engineering students (1912)
Smith, Alton Lincoln, 1867- [from old catalog] · Worcester, Mass., The author · leaf 52
sary for teeth are thickness and outside diameter of blank, number, kindand pitch of teeth. Actual Sizes of Gear Teeth l^BLE OF D/AMCTfiAL P/TCHES ANO CIRCULAR P/TCH EQUIVALENTS Oiam.Pi. Or. Pi DiarnPi. Or. Pi. Diam.Pi. dr. Pi. Oiam.Pi. Cir.Pi. Z 1.571- 5 .628- la .zez- 26 .izr 2>^ I.33G- 6… … f<P^22
Mechanical drawing · Lettering
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
