Geometrical instruments – Gauge – Coordinate movable probe or machine
Patent
1994-12-20
1996-09-03
Fulton, Christopher W.
Geometrical instruments
Gauge
Coordinate movable probe or machine
33 1CC, 33 1M, G01B 5004, G01B 526
Patent
active
055511619
ABSTRACT:
A figure coordinate marking apparatus having a fine movement device capable of easily and accurately adjusting the marker to a specific coordinate position of a figure and a marker capable of clearly indicating a marking point. The figure coordinate marking apparatus is comprised of a main body having rollers provided at each end of a straight horizontal axle perpendicular to a running direction thereof so that the main body can run in only the straight running direction, a display device, an input device, and calculating device. A measuring lever is pivotably supported on the main body to rotate right or left relative to the running direction on a horizontal plane. A first wheel for fine movement substantially in the running direction of the main body, and a second wheel for fine movement in a turning direction of the measuring lever are provided. The first wheel and second wheel are normally kept a small distance above a sheet of paper on which a figure to be measured is drawn, by an elastic member.
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patent: 4616419 (1988-10-01), Kubo
patent: 4617740 (1986-10-01), Mikio
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patent: 4791576 (1988-12-01), Tanaka et al.
patent: 5115569 (1992-05-01), Kubo
Fulton Christopher W.
O'Reilly David
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