US Patent: 1,690,832 - Combination Paper-Cutting Tool, Rule, and Drafting and Measuring Instrument


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US Patent: 1,690,832

Combination Paper-Cutting Tool, Rule, and Drafting and Measuring Instrument

Patentee:

Ira J. Owen (exact or similar names) - Grand Rapids, MI

USPTO Classifications:

33/497

Tool Categories:

rules : folding rules

Assignees:

None

Manufacturer:

B. & B. - St. Paul, MN

Witnesses:

Unknown

Patent Dates:
Applied:	Nov. 24, 1924
Granted:	Nov. 06, 1928

Patent Pictures:

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Description:

Symmetrical halves with a friction hinge utilizing a spring washer and a stop to allow the two legs to form a 90 degree angle after being rotated 270 degrees. Staggered perforations for using a pencil point for drafting purposes.

Known examples are made of brass. Markings observed around the hinge:

THE COMMERCIAL PRESS/PRINTING/TEL.3905/FITCHBURG, MASS.

CLEMSON BROS., INC. MIDDLETOWN, NY with STAR HACK SAWS in a star centered in on the hinge.

The maker, patent no., and Made in USA on the hinge on the front side on these examples.

This was sold as a promotional item and so we have seen various random names printed on the rule and those names don't imply that they manufactured the rule.