GB579206A - Improvements in or relating to extensometers or similar instruments - Google Patents
Improvements in or relating to extensometers or similar instrumentsInfo
- Publication number
- GB579206A GB579206A GB577944A GB577944A GB579206A GB 579206 A GB579206 A GB 579206A GB 577944 A GB577944 A GB 577944A GB 577944 A GB577944 A GB 577944A GB 579206 A GB579206 A GB 579206A
- Authority
- GB
- United Kingdom
- Prior art keywords
- strip
- secured
- indicating
- movement
- arm
- 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
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/06—Special adaptations of indicating or recording means
- G01N3/062—Special adaptations of indicating or recording means with mechanical indicating or recording means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/30—Measuring arrangements characterised by the use of mechanical techniques for measuring the deformation in a solid, e.g. mechanical strain gauge
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
579,206. Indicating ; gauges. HAMILTON, A. M. March 29,1944, No. 5779. [Classes 106 (ii) and 106 (iv)] An extensometer or similar instrument comprises a metal strip havirig points of flexure near its ends which are connected to the extensible or movable member, and an intermediate point of flexure, the strip being inflexible elsewhere and indicating means comprising a member or members rigidly connected to the inflexible part or parts of the strip so as to execute the angular movement thereof. The invention may be applied to weighing-apparatus and temperature measuring devices. In Figs. 1 and 2, a metal plate substantially in the form of an isosceles triangle divided over part of a median, is bent to form a bent strip 20 provided with triangular arms 21, 22 arranged at right angles to the strip. A notch 24 is cut out of the plate to facilitate bending. Lugs 28 at the ends of the strip are secured to the web of a bridge to be tested. Pins 26 on an indicating pointer 27 are inserted in perforations in elements 25 formed on or secured to the arms so that deformation of the bridge member results in movement of the pointer. In a modification, a stylus is mounted on the arm 22 and a record chart is mounted on the arm 21. In a further modification, transparent wings 21 carrying scales are adapted to move on either side of the wing 22. In a device which may be used as outside calipers, Figs. 10 and 11, the ends of the strip 20 are secured to brackets 46 adjustably mounted on channel members 47 riveted to a frame 49 with adjustable plates 51 which may be separated by applying pressure to the ends of the channel members. A device 54 limits inward movement of the ends.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB577944A GB579206A (en) | 1944-03-29 | 1944-03-29 | Improvements in or relating to extensometers or similar instruments |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB577944A GB579206A (en) | 1944-03-29 | 1944-03-29 | Improvements in or relating to extensometers or similar instruments |
Publications (1)
Publication Number | Publication Date |
---|---|
GB579206A true GB579206A (en) | 1946-07-26 |
Family
ID=9802463
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB577944A Expired GB579206A (en) | 1944-03-29 | 1944-03-29 | Improvements in or relating to extensometers or similar instruments |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB579206A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2611966A (en) * | 1950-02-09 | 1952-09-30 | Battelle Development Corp | Extensometer |
FR2539866A1 (en) * | 1983-01-26 | 1984-07-27 | Pouget Robert | Portable instrument for measuring the residual play of "Nabla" elastic fasteners for clamping railway rails |
-
1944
- 1944-03-29 GB GB577944A patent/GB579206A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2611966A (en) * | 1950-02-09 | 1952-09-30 | Battelle Development Corp | Extensometer |
FR2539866A1 (en) * | 1983-01-26 | 1984-07-27 | Pouget Robert | Portable instrument for measuring the residual play of "Nabla" elastic fasteners for clamping railway rails |
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