Instrument for drawing dashed lines or the like

Details Instrument for drawing dashed lines or the like Instrument for drawing dashed lines or the like

1992-09-17

1993-07-06

Haroian, Harry N.

Geometrical instruments

Scriber

Straight-line

B43L 1300

Patent

active

052242692

ABSTRACT:
A drawing instrument for drawing straight or dashed lines including a scriber support assembly composed of a body part slidable in a groove on a ruler and an arm part which extends beyond either edge of the ruler and carries at its outer end a scriber. The inner end of the arm part is connected to the body part by a hinge and a follower carried by the arm part follows shapes such as undulations in grooves in the ruler between the side edge thereof and the hinge whereby the outer end of the arm part and the scriber are raised and lowered to make dashed lines. One groove can be flat whereby the scriber produces a continuous line.

REFERENCES:
patent: 516477 (1894-03-01), Dick
patent: 519155 (1894-05-01), Haug et al.
patent: 852430 (1907-05-01), Goodman
patent: 2081439 (1937-05-01), Simmons

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