Gear's illustrated catalogue of wood and iron working machinery (1872)
A.S. Gear, Gear, A. S · Boston : Printed at A.S. Gear's printing office, 62 Sudbury Street · leaf 121
The No. 2 machine represented above will centre iron from one-fourth inch to four and one-half inches in diame-ter. It is set on a bed about two feet long, and the chuck is bolted to a separate stand, which is fitted to the bed,and can slide about eight inches, thus giving more or less room between…
