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US Patent: 723,041
Compass
Improved Compass Joint
Patentee:
Wilhelm Schwarzer (exact or similar names) - Nuremburg, Germany

USPTO Classifications:
33/558.5

Tool Categories:
layout tools : compasses

Assignees:
Georg Schoenner - Nuremburg, Germany

Manufacturer:
Georg Schoenner - Nuremburg, Germany

Witnesses:
Oscar Bock
Andreas Stich
Ella L. Giles
Otto Brunner

Patent Dates:
Applied: Mar. 13, 1901
Granted: Mar. 17, 1903

Patent Pictures:
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Description:
This compass joint design automatically keeps the handle aligned with the axis of rotation for the compass.

Known examples are marked "Schoenner Germany" and with the patent date

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