US Patent: 1,579,334
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| Micrometric Plug Gage
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Patentee:
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| Gustave Poncet (exact or similar names) - Chicago, Cook County, IL |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Oct. 02, 1919 |
| Granted: |
Apr. 06, 1926 |
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Joel Havens
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Description: |
| Offield, Towle, Graves & Soans - patent attorneys
My invention relates to plug gauges of that type in which the external diameter of the plug may be adjusted to fit within certain prescribed limits, holes or apertures of varying diameter, the adjustment being effected micrometrically. The principal objects of the invention are to provide a plug gauge of the class described, having means for changing the diameter thereof in such a manner that the change in the diameter is readily ascertained to provide a variable plug gauge of the micrometer type, capable of being used in substantially the same manner as an ordinary micrometer; to provide improved means for locking the gauge in any position or desired adjustment; to provide a gauge of the class described which may be manufactured accurately and in standard dimensions by approved shop practice and machinery to provide a plug gauge of the class so described which shall be neat and compact in appearance, simple and convenient to manipulate, simple and inexpensive to manufacture, rugged and durable in service, and which will not lose its accuracy in use, and in general to provide an improved construction of the character referred to.
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