Brown & Sharpe Manufacturing Co.

Brown & Sharp Manufacturing Company

Kenneth L Sheehan

Michael A Mariani

A precision measuring machine, such as a coordinate measuring machine, includes a probe assembly fixed to a movable member of the machine. The probe assembly includes a probe tip. A calibration object is detachably secured to the movable member in fixed relation to the probe assembly. The probe assembly articulates into a position such that the calibration object may be probed by the probe tip to recalibrate the probe assembly.

Apparatus and method for calibrating a probe assembly of a measuring

A computer interface device for a coordinate measuring machine comprises a trackball that transmits perpendicular movement signals to a computer in response to corresponding perpendicular tangential movement of the trackball. The computer is interconnected with the coordinate measuring machine and normally receives measurement data corresponding to a location of a probe on the computer. The trackball is located adjacent the probe so that a user grasping the probe can manipulate the trackball to transmit data manipulation signals to the computer. Typically, the trackball moves a cursor about the computer screen. A plurality of data entry buttons are included on the interface device and enable the user to execute computer procedures selected by the cursor.

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Saunderstown, RI, United States of America

Kenneth L Sheehan