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US Patent: 528,759
Automatic Stop for Micrometer Gages
Patentee:
Herman V. Bernhardt - Brooklyn, NY

USPTO Classifications:
33/815

Tool Categories:
metalworking tools : machinist tools : measuring tools : micrometers

Assignees:
None

Manufacturer:
Brown & Sharpe Mfg. Co. - Providence, RI

Witnesses:
H. Walker
Theodore G. Hoster
Jno. M. Ritter

Patent Dates:
Applied: Jun. 25, 1894
Granted: Nov. 06, 1894

Patent Pictures: [ 1 | 2 ]
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"Vintage Machinery" entry for Brown & Sharpe Mfg. Co.
Description:
The object of the invention is to provide a new and improved automatic stop for micrometer gages and other tools, arranged in such a manner as to prevent the operator from exerting an over-pressure and causing a consequent spreading of the contacting ends of the micrometer or other like tool, whereby inaccurate measurement by the tool is rendered impossible. The invention consists of an internally toothed head or cap, adapted to be engaged by a spring-pressed pawl or pawls mounted to slide laterally on and turning with the micrometer spindle.

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