Gage for direct internal measurement

Details Gage for direct internal measurement Gage for direct internal measurement

1979-02-23

1980-06-24

Stearns, Richard R.

Geometrical instruments

Area integrators

Electrical

33147E, 33147G, 33147K, 33147M, 33147N, 33199B, G01B 702

Patent

active

042087961

ABSTRACT:
An internal gage has a measuring assembly with two gaging fingers for contacting the part to be measured. One gaging finger is mounted upon a carriage driven by a precision screw assembly and the other gaging finger is mounted upon a platform supported by reeds and may be moved to various stations along the platform. The screw assembly is operatively connected to an incremental position transducer having a digital readout. The platform is associated with an electromechanical transducer connected to a zero meter. The measuring assembly is mounted upon a vertically movable support so that the internal dimensions of tapered parts may be ascertained. In addition, the fingers may include floating elements to enable the measurement of pitch diameters.

REFERENCES:
patent: 2448106 (1948-08-01), Mannerbrink et al.
patent: 2863221 (1958-12-01), Toubhans
patent: 3190009 (1965-06-01), Zagar
patent: 3197873 (1965-08-01), Aller
patent: 3996669 (1976-12-01), Anichini
patent: 4103427 (1978-08-01), Ledley
Pratt & Whitney, Publication No. G2301-1, "Trans-O-Limit Universal Internal omparator Model B-4", 1967.
Pratt & Whitney, Publication No. G2103-1, "Digital English/Metric Electrolimit Supermicrometer Model C", 3-1979.

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