Gauging head for checking dimensions of workpieces

Details Gauging head for checking dimensions of workpieces Gauging head for checking dimensions of workpieces

1983-07-19

1984-10-02

Little, Willis

Geometrical instruments

Area integrators

Electrical

33149J, 33178E, G01B 712

Patent

active

044739516

ABSTRACT:
A gauging head, for checking linear dimensions of workpieces, comprises a casing; two movable arms, pivotable about pins fixed to the casing, and carrying feelers for contacting the workpiece to be checked; two position transducers operatively coupled to the movable arms; a second pair of arms pivotable about the pins; and zero-setting devices. The zero-setting devices include two members coupled to a shaft rotatable by a control lever. In a first position of the control lever the members are locked and the gauging head is in gauging condition. In a second position of the control lever the members are unlocked and can translate along the shaft permitting to carry out the zero-setting operation of the head because the two movable arms and the second pair of arms engage the members in such a way that the arms can rotate about the pins while maintaining a determined setting of the transducers.

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patent: 4437239 (1984-03-01), Possati

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