US Patent: 318,051 - Screw Thread Gage


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US Patent: 318,051

Screw Thread Gage

Patentee:

Laroy Sunderland Starrett (exact or similar names) - Athol, Worcester County, MA

USPTO Classifications:

33/199R

Tool Categories:

metalworking tools : machinist tools : measuring tools : thread gages

Assignees:

None

Manufacturer:

L. S. Starrett Co. - Athol, Worcester County, MA

Witnesses:

Andrew J. Hamilton

Emma L. Hamilton

Patent Dates:
Applied:	Sep. 05, 1883
Granted:	May 19, 1885

Patent Pictures:

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"Vintage Machinery" entry for L. S. Starrett Co.
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History of the L. S. Starrett Co.

Description:

Thread gage is placed on the edge of the gage instead of on the end of the gage as was the previous norm. This arrangement also allows interior threads to be easily measured. Sold as their model 4 and model 40.