US Patent: 111,927 - Milling Tool


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US Patent: 111,927

Milling Tool

Patentee:

Levi Griswold (exact or similar names) - Branford, CT

USPTO Classifications:

407/36, 407/95

Tool Categories:

metalworking machines : milling machines : milling machine tools

Assignees:

None

Manufacturer:

Not known to have been produced

Witnesses:

J. H. Shumway

A. J. Tibbits

Patent Dates:
Granted:	Feb. 21, 1871

Patent Pictures:

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Description:

John E. Earle - patent attorney

This invention relates to an improvement in milling-tools especially designed for milling-followers in locks, but applicable for other purposes, the object being the construction of a longitudinal cutter, easily adjustable to be ground or sharpened without removing from the holder and it consists in the arrangement of a cutter in a longitudinal groove formed in a spindle, and around the said spindle an internally-threaded sleeve, with corresponding threads in the cutter, so that by turning the sleeve the cutter may be thrown out or drawn in, as the case may be.