Notes on technical sketching and free hand lettering for engineering students (1912)
Smith, Alton Lincoln, 1867- [from old catalog] · Worcester, Mass., The author · leaf 45
a puUeyor nut from coming off a shaft endwise. After pushing the pin through its hole, the ends are spread thuspreventing its working out. Diameter at the neck and length under head to extreme point are thenecessary dimensions. Diameters from ^ to ^ vary by 64ths of an inch, from I to J by 16ths of… … BEADED F/rr/NG Flan(S£:o F/ttinq
Mechanical drawing · Lettering
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.