US Patent: 366,651
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| Bevel & Protractor
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Patentee:
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| Samuel Darling (exact or similar names) - Providence, RI |
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Patent Dates:
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| Applied: |
Apr. 08, 1886 |
| Granted: |
Jul. 19, 1887 |
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Joel Havens
"Vintage Machinery" entry for Brown & Sharpe Mfg. Co
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Description: |
| Abstract:
The object of my invention is to produce an instrument which can be adjusted to any angle from zero to ninety degrees, and by it the same be transferred in the various ways required in the use of such instruments; also, an instrument which can be adjusted to any angle, exterior or interior, to test or transfer the same, as may be required; also, an instrument which can be adjusted to two different angles at the same time, both interior and exterior, or one interior and one exterior; also, an instrument that may be used as a try-square for testing interior or exterior angles; also, an instrument constructed in a more substantial, durable, and accurate manner than other instruments of the kind heretofore made.
Claim:
A bevel, bevel-protractor, or adjustable try-square having a cutaway portion or recess and an adjustable blade, one edge of which is forced and held against the shoulder in the recess by means of a clamp and the wedging of opposite bevel-surfaces. |
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