Geometrical instruments – Scriber – Pantographic
Patent
1981-08-24
1984-03-13
Haroian, Harry N.
Geometrical instruments
Scriber
Pantographic
B43I 1310
Patent
active
044359039
ABSTRACT:
A lettering device for drawing characters for use in connection with a lettering template having character grooves and a horizontal guide pin groove, the combination of a guide pin, a tracer pin, and a means for holding a writing instrument, each at the vertices of a right triangle, said tracer pin, being located at the right angle vertex. The knob handle for the device is located outside of and adjacent to that leg of the right triangle which interconnects said tracer pin and said writing instrument means, whereby the device can be manipulated by the left hand.
REFERENCES:
patent: 2050058 (1936-08-01), Keuffel
patent: 2616179 (1952-11-01), Anderson
patent: 2686971 (1954-08-01), Valois
patent: 2720030 (1955-10-01), Anderson
patent: 3250008 (1966-05-01), Heisley
patent: 3555686 (1971-01-01), Hatem
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