US Patent: 1,417,375 - Adjustable Draftsman's Compass


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US Patent: 1,417,375

Drawing Instrument
Adjustable Draftsman's Compass

Patentees:

Charles A. Green (exact or similar names) - Chicago, IL

Henry F. Schuh (exact or similar names) - Chicago, IL

USPTO Classifications:

33/558.5, 36/36R

Tool Categories:

layout tools : compasses : dividers

Assignees:

C. F. Pease Co. - Chicago, IL

Manufacturer:

C. F. Pease Co. - Chicago, IL

Witnesses:

C. F. Pease

Anna Kullander

Patent Dates:
Applied:	May 23, 1921
Granted:	May 23, 1922

Patent Pictures:

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Description:

This patent covers a method of constructing compasses and dividers such that the handle of the instrument always bisects the angle between the two legs.