US Patent: 1,799,739 - Precision measuring device


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US Patent: 1,799,739

Precision measuring device

Patentees:

Carl G. Schiele - Cincinnati, OH

John B. Elfring - Cincinnati, OH

USPTO Classifications:

33/412

Tool Categories:

metalworking tools : machinist tools : measuring tools

Assignees:

Cincinnati Grinders, Inc. - Cincinnati, OH

Manufacturer:

Not known to have been produced

Witnesses:

Unknown

Patent Dates:
Applied:	Nov. 13, 1926
Granted:	Apr. 07, 1931

Patent Pictures:

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Description:

"The principal object of the present invention is the provision of a novel mechanism for accurately determining the correctness of the guide ways on the bed of a milling machine, grinding machine or like machine tool."