US Patent: 1,188,890 - Stencil-Compasses


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US Patent: 1,188,890

Stencil-Compasses

Patentee:

Ernest J. Brasseur (exact or similar names) - Chicago, IL

USPTO Classifications:

33/27.03

Tool Categories:

layout tools : compasses

layout tools : compasses : trammels

Assignees:

A.B. Dick - Chicago, IL

Manufacturer:

A.B. Dick - Chicago, IL

Witnesses:

H. H. Muhan

Joseph Teal

Patent Dates:
Applied:	Jan. 26, 1916
Granted:	Jun. 27, 1916

Patent Pictures:

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Description:

This is a simple trammel that attaches to a drafting pen. Instead of the traditional inking nib, however, it uses a small rotating cutter, allowing the user to make a clean cut of a perfect circle.