US Patent: 508,952
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| Micrometer Gage
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Patentee:
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| Joseph P. Lavigne (exact or similar names) - New Haven, CT |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Jan. 07, 1893 |
| Granted: |
Nov. 21, 1893 |
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Joel Havens
"Vintage Machinery" entry for Lavigne Automatic Mfg. Co.
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Description: |
| Joseph P. Lavigne owned the Lavigne Micrometer Co. of New Haven, CT.
My invention relates to an improvement in that class of micrometer gages in which the measuring of inches is done by a set of movable pieces differentiated in length by inches, and adapted to be interchanged with each other, and in which the measuring of fractions of inches is done by a measuring-screw, the object being to produce a simple, convenient and durable instrument having its movable pieces applied to the outside of its beam. With these ends in view my invention consists in a micrometer gage having a movable jaw and a fixed jaw, means for measuring fractions of inches, and a series of measuring sleeves differentiated in length by inches, and adapted to be interchanged with each other to determine the position of the movable jaw with respect to the fixed jaw.
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