Geometrical instruments – Straightedge type – Plural straightedges nonadjustably fixed at right angles
Patent
1982-12-20
1986-03-04
Frankfort, Charles
Geometrical instruments
Straightedge type
Plural straightedges nonadjustably fixed at right angles
33403, B43L 1300
Patent
active
045732760
ABSTRACT:
A tool guide for directing hand tools over a workpiece at an angle perpendicular to one edge of the workpiece is disclosed. The guide has two perpendicular legs equipped with flanges for aligning the guide and directing a hand tool along the guide. Measuring units are provided along surfaces of the guide to allow it to be used alternately as a carpenter's square and to facilitate carpentry operations without premeasuring. The flanges are shorter than the legs to provide cutouts for clamp removal and a cross brace enables the guide to be optionally stabilized without clamps.
REFERENCES:
patent: 660876 (1900-10-01), West
patent: 1035379 (1912-08-01), Miller
patent: 2735455 (1956-02-01), Forsberg
patent: 2773523 (1956-12-01), Hopla
patent: 3010209 (1961-11-01), McKinley
patent: 4404753 (1983-09-01), Klok
Frankfort Charles
Scanlon Patrick R.
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