Device for describing arcs

Details Device for describing arcs Device for describing arcs

1994-04-15

1996-08-06

Fulton, Christopher W.

Geometrical instruments

Scriber

Curved line

33 27031, 33 27033, G01B 316

Patent

active

055421857

ABSTRACT:
The present invention is directed to a device for describing arcs. The device includes a pair of legs connected at a pivot joint. A shoe is disposed at the end of one leg to support the device and maintain the center point of the arc while the device is used. An instrument is attached to the other leg so arcs can be formed as the device is rotated about the shoe. A rack and wheel are also connected to the legs to adjust the radius of the arc.

REFERENCES:
patent: 288235 (1883-11-01), Hanstein
patent: 595607 (1887-12-01), Coykendall
patent: 1263182 (1918-04-01), Wolthausen
patent: 2537058 (1951-01-01), Jamison, et al.
patent: 2754586 (1956-07-01), Manstorp
patent: 3247597 (1966-04-01), Brown
patent: 3280466 (1966-10-01), Heimberger
patent: 3543406 (1968-12-01), Kolb
patent: 3797119 (1974-03-01), McDow
patent: 5014436 (1991-05-01), Kozyrski et al.

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