US Patent: 373,705 - Micrometer Gage


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US Patent: 373,705

Micrometer Gage

Patentee:

John Peru Brice Wells (exact or similar names) - Thomaston, MA

USPTO Classifications:

33/816

Tool Categories:

metalworking tools : machinist tools : measuring tools : micrometers

Assignees:

None

Manufacturer:

Not known to have been produced

Witnesses:

John Francis Jenks, Jr.

Frank W. Etheridge

Patent Dates:
Applied:	Jan. 17, 1887
Granted:	Nov. 22, 1887

Patent Pictures:

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Description:

My invention relates to an improvement in micrometer calipers, the object being to produce an instrument adapted to compensate for wear without disturbing its graduations, and to be easily and quickly adjusted, available for a wide range of precise measurements, and combining simplicity of construction with durability and general efficiency in use.