US Patent: 495,565
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| Surface Gage
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Patentee:
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| Peter Antonovitch Renko (exact or similar names) - Prince's Bay, NY |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Jun. 27, 1892 |
| Granted: |
Apr. 18, 1893 |
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Joel Havens
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Description: |
| My invention relates to improvements in surface gages, and it is the object of my invention to adapt the instrument to the very accurate locating of points as well as of lines and to accurately mark the points on the work. Essentially my invention consists in a spring actuated prick or plunger which can be used micrometer adjusting device. When the plunger is brought by the micrometer to very accurate adjustment, a light blow on the plunger makes a prick mark in the work without any displacement of the instrument, so that greater accuracy in marking points, as at the intersection of lines and the various centers of work, is attained than is possible with existing gages, which have not the plunger. |
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