GB629277A - Improvement in extensometers - Google Patents

Improvement in extensometers

Info

Publication number
GB629277A
GB629277A GB29685/46A GB2968546A GB629277A GB 629277 A GB629277 A GB 629277A GB 29685/46 A GB29685/46 A GB 29685/46A GB 2968546 A GB2968546 A GB 2968546A GB 629277 A GB629277 A GB 629277A
Authority
GB
United Kingdom
Prior art keywords
voltage
strip
rolls
generator
potentiometer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB29685/46A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
United States Steel Corp
Original Assignee
United States Steel Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by United States Steel Corp filed Critical United States Steel Corp
Publication of GB629277A publication Critical patent/GB629277A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
    • G01B21/32—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring the deformation in a solid

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Abstract

629,277. Extensometers. UNITED STATES STEEL CORPORATION OF DELAWARE. Oct. 4, 1946, No. 29685. Convention date, June 28, 1946. [Class 40 (i)] An extensometer for a strip rolling mill comprises linear-voltage-speed generators 14, 16 coupled to idler-rolls 4, 10 driven by the strip " S " before and after passing through the work-rolls 6. A fixed resistance R1 and a potentiometer R2 connected across the output of the generator 16 enables its voltage to be balanced against that of the generator 14. A self-balancing device actuates the potentiometer slider 20 which is calibrated to read percentage extension of the strip S. The selfbalancing device may comprise a vibrating contact to produce an intermittent voltage from the slider 20 which after amplification feeds one field of a two-phase motor driving the sliding contact.
GB29685/46A 1946-06-28 1946-10-04 Improvement in extensometers Expired GB629277A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US679916A US2525182A (en) 1946-06-28 1946-06-28 Extensometer

Publications (1)

Publication Number Publication Date
GB629277A true GB629277A (en) 1949-09-15

Family

ID=24728916

Family Applications (1)

Application Number Title Priority Date Filing Date
GB29685/46A Expired GB629277A (en) 1946-06-28 1946-10-04 Improvement in extensometers

Country Status (2)

Country Link
US (1) US2525182A (en)
GB (1) GB629277A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2330416A (en) * 1997-10-16 1999-04-21 Eastman Kodak Co Apparatus and method for detecting a splice in a running length of web

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE945190C (en) * 1954-12-22 1956-07-05 Licentia Gmbh Method and device for length measurement of strip-shaped rolled material
US2963221A (en) * 1958-02-25 1960-12-06 United States Steel Corp Extensometer
DE1147391B (en) * 1958-06-10 1963-04-18 Marcel Charles Pfister Device for measuring the elongation of rolling stock
US3029022A (en) * 1959-03-03 1962-04-10 United States Steel Corp Apparatus for determining the ratio between two d. c. power sources
US3169297A (en) * 1961-12-21 1965-02-16 Strandberg Eng Lab Inc Stretch-shrink indicating apparatus
US3167848A (en) * 1963-02-27 1965-02-02 Burlington Industries Inc Stretch control of material in a textile processor

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2039914A (en) * 1933-07-29 1936-05-05 United Eng Foundry Co Reduction indicator for rolling mills
US2051018A (en) * 1934-03-28 1936-08-11 Gen Electric Speed ratio indicating device
US2248504A (en) * 1938-11-23 1941-07-08 Raymond A Siedle Means for indicating speed rations and potential rations
US2447208A (en) * 1945-05-17 1948-08-17 Carnegie Illinois Steel Corp Extensometer for indicating percent elongation
US2447209A (en) * 1946-06-28 1948-08-17 Carnegie Illinois Steel Corp Extensometer for indicating amount of elongation of strip material

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2330416A (en) * 1997-10-16 1999-04-21 Eastman Kodak Co Apparatus and method for detecting a splice in a running length of web
US5953953A (en) * 1997-10-16 1999-09-21 Eastman Kodak Company Apparatus and method for detecting a splice in a running length of web
GB2330416B (en) * 1997-10-16 2002-02-13 Eastman Kodak Co Apparatus and method for detecting a splice in a running length of web

Also Published As

Publication number Publication date
US2525182A (en) 1950-10-10

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