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US Patent: 73,431
Screw Cutting Tool
Patentee:
Edgar B. Beach (exact or similar names) - West Meriden, New Haven County, CT

USPTO Classifications:
407/94, 407/95

Tool Categories:
metalworking machines : metal lathes : lathe tools

Assignees:
None

Manufacturer:
Billings & Spencer Co. - Hartford, Hartford County, CT

Witnesses:
John E. Earle
A. J. Tibbits
J. H. Shumway

Patent Dates:
Granted: Jan. 21, 1868

Patent Pictures: [ 1 | 2 ]
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"Vintage Machinery" entry for Billings & Spencer Co.
Description:
This patent was improved with patent #150,276.

Abstract:

his invention, though designed particularly for" a screw-cutting tool, may be applied to tools for general turning, the object being to construct a cutter which shall retain its form without being "reset" every time it is ground, and thus avoid the necessity of employing the most skillful workmen for this class of work; and the invention consists in a cutter formed so as to be attached upon one side of the thank, and inclined in the said shank so that the face or edge of the cutter will be at the proper angle to the work to be done, and so that by simply grinding the upper end of the cutter the tool will be sharpened, and the said shank provided with a device for securing the cutter upon the said one side.

Claim:

The cutter A, provided with the flange B, attached to one side of a shank

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