US Patent: 7,501
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| Joint for Compasses for Measuring
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Patentee:
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| T. Alteneder (exact or similar names) - Philadelphia, PA |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Granted: |
Jul. 16, 1850 |
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Ralph Brendler
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Description: |
| This patent covers an improved joint such as would be used on compasses or dividers. The design allows for wear in the joint by providing an external yoke with screws to adjust the tension.
This patent was granted to T. Alteneder, a well-known manufacturer of drafting tools, but it is not known whether Alteneder ever produced tools using this design. |
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