Improvements in or relating to methods of testing work-pieces for correctness of linear dimensions

Improvements in or relating to methods of testing work-pieces for correctness of linear dimensions

712,541. Linear-dimension gauges. SIGMA INSTRUMENT CO:, Ltd. Feb. 26, 1953 [Dec. 17, 1951], No. 29550/51. Class 106 (2) A method of testing nominally identical workpieces for correctness of a linear dimension comprises the steps of firstly constructing a setting master, then measuring the setting ma...

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1. Verfasser: LOXHAM JOHN
Format: Patent
Sprache:eng
Schlagworte:
MEASURING
MEASURING ANGLES
MEASURING AREAS
MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS
PHYSICS
TESTING
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creator LOXHAM JOHN
description 712,541. Linear-dimension gauges. SIGMA INSTRUMENT CO:, Ltd. Feb. 26, 1953 [Dec. 17, 1951], No. 29550/51. Class 106 (2) A method of testing nominally identical workpieces for correctness of a linear dimension comprises the steps of firstly constructing a setting master, then measuring the setting master in regard to the dimension and determining the error in the setting master, placing the measured setting master in a comparator and causing the comparator indicating device to indicate the known measured error of the setting master thereby correctly setting up the comparator, and thereafter gauging the work-pieces for inspection as to the dimension, with the use of the comparator just set up. The work-pieces may be cylinders whose external diameters and lengths are to be inspected by means of a turret comparator as described in Specification 712,539 having appropriate fixtures as described in Specification 712,540, each adjusted in relation to the common indicating device by using a measured setting master.
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Linear-dimension gauges. SIGMA INSTRUMENT CO:, Ltd. Feb. 26, 1953 [Dec. 17, 1951], No. 29550/51. Class 106 (2) A method of testing nominally identical workpieces for correctness of a linear dimension comprises the steps of firstly constructing a setting master, then measuring the setting master in regard to the dimension and determining the error in the setting master, placing the measured setting master in a comparator and causing the comparator indicating device to indicate the known measured error of the setting master thereby correctly setting up the comparator, and thereafter gauging the work-pieces for inspection as to the dimension, with the use of the comparator just set up. 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subjects MEASURING
MEASURING ANGLES
MEASURING AREAS
MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS
PHYSICS
TESTING
title Improvements in or relating to methods of testing work-pieces for correctness of linear dimensions
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