Home| FAQ Search:Advanced|Person|Company| Type|Class Login
Quick search:
Patent number:
Patent Date:
first    back  next  last
US Patent: 66,692
Improvement in saws
Patentee:
James E. Emerson (exact or similar names) - Trenton, NJ

USPTO Classifications:
83/850

Tool Categories:
woodworking machines : circular saws : saw teeth
woodworking machines : machine and tool cutters : saw teeth

Assignees:
None

Manufacturer:
American Saw Co. - Trenton, NJ

Witnesses:
Charles A. Pettit
Charles D. Smith

Patent Dates:
Granted: Jul. 16, 1867

Patent Pictures:
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Jeff Joslin
Vintage Machinery entry for James E. Emerson; American Saw Co.
Description:
An advertorial in the 1868-02-01 issue of Scientific American features this invention, complete with four engravings.

The principle of this invention is that below each gullet there is a series of semi-circular holes. When a tooth is sharpened, the gullet is filed down to the next semi-circular hole. The semi-circle defines the bottom of the gullet, avoiding the stress concentration of a sharp gullet. This innovation was heavily promoted by the American Saw Co.

Copyright © 2002-2024 - DATAMP