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US Patent: 7,501
Joint for Compasses for Measuring
Patentee:
T. Alteneder (exact or similar names) - Philadelphia, PA

USPTO Classifications:
24/486, 33/558.5

Tool Categories:
layout tools : compasses

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Edward Everett
T. C. Donn

Patent Dates:
Granted: Jul. 16, 1850

Patent Pictures:
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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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