GB629277A - Improvement in extensometers - Google Patents
Improvement in extensometersInfo
- 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
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)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (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.
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)
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)
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)
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 |
-
1946
- 1946-06-28 US US679916A patent/US2525182A/en not_active Expired - Lifetime
- 1946-10-04 GB GB29685/46A patent/GB629277A/en not_active Expired
Cited By (3)
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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