Recorders – Markers and/or driving means therefor – Stylus feature
Patent
1979-03-02
1981-06-16
Hartary, Joseph W.
Recorders
Markers and/or driving means therefor
Stylus feature
33 18R, 346 46, G01D 930
Patent
active
042741025
ABSTRACT:
A multi-element writing instrument is disclosed for use in computer-operated plotters or similar graphics systems. Successive applications of a linear force applied along the axis of the instrument are converted to rotary motion which is employed to select successive elongate writing elements normally positioned at a uniform radial spacing from the axis of the writing instrument. Each selected element is displaced in a substantially axial direction a distance sufficient to extend the writing point of the element through the exit opening of the instrument.
REFERENCES:
patent: 2191673 (1940-02-01), Moore
patent: 2778710 (1957-01-01), Komas
patent: 2910876 (1959-11-01), Jackson
patent: 3223072 (1965-12-01), Bross
patent: 3256969 (1966-06-01), Bretti
patent: 3550276 (1970-12-01), Kramer
patent: 3703104 (1972-11-01), Tamplen
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