US Patent: 530,894
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| Try Square
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Patentee:
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| Frank Houle (exact or similar names) - Chicago, IL |
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Patent Dates:
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| Applied: |
Mar. 21, 1894 |
| Granted: |
Dec. 11, 1894 |
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Patent Pictures:
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Russ Allen.
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Description: |
| Blade cutout ("furcated opening") that allows the blade to be set at different angles and naturally locks at a right angle. Blade is secured in position by use of a lock nut but it is claimed that it is only needed to lock the blade at an angle other than 90 degrees.
Known example marked: "HOULE TRY SQUARE/& BEVEL/PAT'D DEC. 11, 1894" on the blade. |
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