Carpenter's tool

Details Carpenter's tool Carpenter's tool

1981-05-13

1983-05-03

Stearns, Richard R.

Geometrical instruments

Miscellaneous

Light direction

33 1LE, 33339, 33413, 33453, B43L 700

Patent

active

043816070

ABSTRACT:
A tool for use by carpenters and the like for conveniently establishing a reference line on a working surface at a predetermined angular disposition from an established base line on said surface. The tool includes an elongated member from which angle lines or cords are each adapted to extend a predetermined distance such that the intersecting terminal ends of such cords in combination with the member, form a triangle having sides of known length. Inasmuch as the length of the triangle's sides are known, the angles included thereby are also known such that a chalked line connected to the member may be utilized to establish a reference line at a known angular disposition to the member. The tool has particular utility when it is desired to establish the angular relationship of a wall to be built with respect to an already existing wall.

REFERENCES:
patent: 1399963 (1921-12-01), Hogg
patent: 2507460 (1950-05-01), Schacht
patent: 2524596 (1950-10-01), Kamp
patent: 2788584 (1957-04-01), Adrien
patent: 2966743 (1961-01-01), Doudlah
patent: 3066416 (1962-12-01), Gutting
patent: 3514863 (1970-06-01), Moll

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