Geometrical instruments – Scriber – Straight-line
Patent
1984-09-06
1986-02-18
Little, Willis
Geometrical instruments
Scriber
Straight-line
33 32R, 33403, B43L 1300
Patent
active
045703450
ABSTRACT:
A holding fixture used to mark pieces of sheet material that includes a base and a pair of upraised support towers mounted upon the base. The towers each contain vertical slots for receiving a worksheet therein so that the sheet is supported in a vertical posture. Straight edges are slidably mounted in each of the towers on each side of the worksheet that are used to guide a marking tool so that straight horizontal lines can be made on either surface of the sheet. A scale is provided for adjusting the position of each straight edge.
REFERENCES:
patent: 2435382 (1948-02-01), Caskey
patent: 2538901 (1957-01-01), Fancher
patent: 2619775 (1952-12-01), Judd, Jr.
patent: 3251133 (1966-05-01), Turtschan
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