Tool for gauging the corners of workpieces of sheet metal or the

Details Tool for gauging the corners of workpieces of sheet metal or the Tool for gauging the corners of workpieces of sheet metal or the

1981-11-16

1984-03-06

Martin, Jr., William D.

Geometrical instruments

Area integrators

Electrical

33169D, G01B 356

Patent

active

044345593

ABSTRACT:
A tool for ascertaining the location of an elongated corner or edge between two mutually inclined surfaces of a workpiece has a frame which supports two cylinders for reciprocable piston rods whose front end portions abut against a work contacting device having faces, rollers, balls or analogous portions each movable into contact with a different surface of the workpiece when the tool is properly positioned with reference to such surfaces. If the location of the corner deviates from the desired location, one of the aforementioned portions engages the respective surface of the workpiece prior to engagement between the other portion and the corresponding surface of the workpiece whereby the one portion of the work contacting device moves transversely of the path of movement of the corresponding piston rod while the other piston rod continues to move toward the workpiece. The extent of movement of each piston rod is monitored by electronic or other suitable means. The work contacting device can be connected to the frame by a spring so that it is urged against the piston rods, and the work contacting device can pivot about an axis located on the line which bisects the angle between the two surfaces of the workpiece. The work contacting device is movable in a plane which is normal to the longitudinal direction of the corner.

REFERENCES:
patent: 2807882 (1957-10-01), Lovenston
patent: 3012330 (1961-12-01), Mendham
patent: 3520063 (1970-07-01), Rethwish et al.
patent: 4237613 (1980-12-01), Slough et al.
patent: 4305207 (1981-12-01), Lantz

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