GB503069A - Improvements in and relating to methods of and instruments for measurement of length - Google Patents
Improvements in and relating to methods of and instruments for measurement of lengthInfo
- Publication number
- GB503069A GB503069A GB29581/38A GB2958138A GB503069A GB 503069 A GB503069 A GB 503069A GB 29581/38 A GB29581/38 A GB 29581/38A GB 2958138 A GB2958138 A GB 2958138A GB 503069 A GB503069 A GB 503069A
- Authority
- GB
- United Kingdom
- Prior art keywords
- slide
- wheel
- ray
- measured
- rod
- 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
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
503,069. Measures of length. MASCHINENFABRIK H. HAUSER AKT.-CES. Oct. 12, 1938, No. 29581. Convention date, Nov. 2, 1937. [Class 106 (ii)] Comprises a method of measuring small lengths wherein are utilized the varying parallel displacements of a luminous ray, which occur when a refractive medium having plane parallel surfaces through which the ray passes is rotated so as to vary the angle of incidence. A slide 2 can be moved along a frame 1 to which the straight edge 3 to be measured is fixed by suitable means. A spindle 5 which carries a piece of glass with plane parallel faces is pivoted in the slide 2. A fork 6 depending from the spindle engages a cross pin 9 fixed to a rod 8 slidably mounted on the slide 2. The rod 8 is pressed by a spring 14 against a cam disc on a shaft 11 in a vertical plane passing through the rod 8. The shaft carries a calibrated measuring wheel 10. The optical system comprises an angular telescope 15 on the slide 2, a source of light 16 and a prism 17 arranged above the parallel plate 4. In use the wheel 10 is set to an initial position on the mark 18 and the ray traversing the plate 4 on to the end of the line to be measured. In addition, the pointer of the slide 2 is set to the zero of the scale along which it moves. The slide 2 is moved as long as whole units can be read and then the wheel 10 moved until the ray coincides with the end of the line to be measured. The wheel 10 gives the fraction to be added to the units on the scale.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH503069X | 1937-11-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB503069A true GB503069A (en) | 1939-03-30 |
Family
ID=4517008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB29581/38A Expired GB503069A (en) | 1937-11-02 | 1938-10-12 | Improvements in and relating to methods of and instruments for measurement of length |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB503069A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3600811A (en) * | 1967-08-22 | 1971-08-24 | Zeiss Stiftung | Arrangement for measuring or adjusting two-dimensional position coordinates |
| CN109855545A (en) * | 2019-04-02 | 2019-06-07 | 中国科学院国家天文台 | A kind of telescoping mechanism based on light wave displacement |
-
1938
- 1938-10-12 GB GB29581/38A patent/GB503069A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3600811A (en) * | 1967-08-22 | 1971-08-24 | Zeiss Stiftung | Arrangement for measuring or adjusting two-dimensional position coordinates |
| CN109855545A (en) * | 2019-04-02 | 2019-06-07 | 中国科学院国家天文台 | A kind of telescoping mechanism based on light wave displacement |
| CN109855545B (en) * | 2019-04-02 | 2024-03-15 | 中国科学院国家天文台 | Telescopic mechanism based on optical wave measurement displacement |
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