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US Patent: 60,315
Improvement in Scale Pencils
Patentee:
Benjamin Worcester - Waltham, MA

USPTO Classifications:
24/10R, 33/27.032, 33/DIG16, 401/52, D19/36, D19/42

Tool Categories:
layout tools : marking gauges
layout tools : compasses

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Isaac K. Harris
Laurence Bradford

Patent Dates:
Granted: Dec. 04, 1866

Patent Pictures:
USPTO pdf tiff
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Description:
This pencil features a scale engraved in the side of it, and a pair of sliding collars with marking points to allow it to be used as a marking gage or compass.

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