Knife with two wheels

Details Knife with two wheels Knife with two wheels

1990-12-06

1991-12-17

Smith, James G.

Compound tools

Cutter combined with other tool or tools

81488, 29235, B26B 1100

Patent

active

050724711

ABSTRACT:
A tool especially designed for a workman in a particular industry has an elongate handle with a retractable sliding knife blade at a first end. At a second end a pair of rotatable wheels are mounted. When constructed for screen installation, one of the wheels has a convex edge for forming the screen in the groove of the screen frame and the other wheel has a concave edge for firmly holding a locking spline and forcing it into the groove to lock the screen in place. Where constructed for the paperboard box fabricator, one of the wheels has piercing points for laying out a pattern (a pounce wheel) and the other wheel has a convex edge for pressing a folding groove into the paperboard. The tool makes it possible for the worker to perform three different tasks normally performed in sequence with a single, hand-held tool to speed up his work, the knife being for trimming off screen or paperboard as required.

REFERENCES:
patent: 494516 (1893-03-01), Walton
patent: 4910821 (1990-03-01), Kieferle

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