US Patent: 2,531,803
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| Marking Gauge
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Patentee:
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| Roy Caldwell (exact or similar names) - Clearfield, PA |
| USPTO Classifications: |
| 33/42 |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Jun. 06, 1945 |
| Granted: |
Nov. 28, 1950 |
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Ralph Brendler
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Description: |
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This is a really strange design for a marking gage with a threaded bar.
The thumbscrew on the head holds a small piece of female-threaded stock,
so that when the screw is loosened the arm can slide freely, while when
it is snugged up the bar can be twisted to achieve fine movements.
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