Cable driven plotter

Details Cable driven plotter Cable driven plotter

1981-08-13

1983-11-01

Stearns, Richard R.

Geometrical instruments

Miscellaneous

Light direction

33189, G01B 503, G01B 703

Patent

active

044123833

ABSTRACT:
A cable driven plotter. One end of a first and a second cable is pivotally connected to a marking device. The cables extend over respective guide pulleys located at separated fixed points and are wound around respective motor driven take-up reels to which the respective other ends are fixed. One end of a third cable is connected to the marking device. The other end is wound around and fixed to a spring driven take-up reel secured to a carriage movable on a fixed horizontal track. The position of the marking device is changed in response to changes in the lengths of the first and second cables. The third cable serves to tension the first and second cables and support the marking device. Means are provided to limit the extent to which the respective lengths of said cables may be paid out or taken in.

REFERENCES:
patent: 2422025 (1947-06-01), Luck
patent: 2706855 (1955-04-01), White, Jr.
patent: 2718061 (1955-09-01), Omberg et al.
patent: 3492421 (1970-01-01), Cameron
patent: 3553842 (1971-01-01), Gerber et al.
patent: 3564533 (1971-02-01), Linn
patent: 3665608 (1972-05-01), Stockebrand
patent: 4133111 (1979-01-01), Logan
patent: 4272892 (1981-06-01), Rose

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