Geometrical instruments – Gauge – Conformator or adjustable curve template
Patent
1989-02-17
1990-11-20
Reese, Randolph A.
Geometrical instruments
Gauge
Conformator or adjustable curve template
33521, 37108A, 37DIG1, 404 84, 36442407, 172 45, E02F 318
Patent
active
049708007
ABSTRACT:
Apparatus is disclosed for grading and measuring surfaces such as roadbeds which have curved and inclined profiles which may have different shapes in successive transverse sections of the roadbed. A blade and screw cutter are supported by a frame which extends over the surface being worked, and these tools are movable along this frame. The tools are movable toward and away from the surface being shaped in response to a control means which has memorized the appropriate positions, or by reference to a deformable rule which may also be reshaped in response to computer-memorized data. According to a disclosed method, the rule is reshaped for different sections of the surface.
An apparatus for checking and measuring a surface which has a curved profile includes a plurality of piston-cylinder units which are mounted on a main frame. A flexible rule is connected by the piston cylinder units to the main frame, and controls are provided for setting the extended positions of the piston-cylinder units to control the shape of the flexible rule.
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patent: 4852278 (1989-08-01), Takizawa et al.
patent: 4854769 (1989-08-01), Fukukawa et al.
Asai Kazumitsu
Fukukawa Mitsuo
Okamoto Yoshiharu
Takizawa Seiichiro
Tanaka Tetsuo
Kajima Corporation
Kajima Road Company
Olsen Arlen L.
Reese Randolph A.
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