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 115
drilled in succession in the same surface, without moving the work, an advantage which will commenditself to machinists. It is especially useful in fitting up such work as steam engines, cylinders, steam chests, bedplates, &c. All work which cannot be conveniently handled may be drilled at one… … There are three sizes of the Patent Grindstone Frame above represented. No. 1 takes a 80 by 4 inches stone;No. 2 a 36 by 6 inches stone, and the No. 3 a 48 by 8 inches stone. The legs are cast on solid to the body of theframe, and are constructed and braced in such a manner as to prevent racking…
