GB249580A - Improvements in and relating to scales and cursors for measuring instruments - Google Patents
Improvements in and relating to scales and cursors for measuring instrumentsInfo
- Publication number
- GB249580A GB249580A GB2797424A GB2797424A GB249580A GB 249580 A GB249580 A GB 249580A GB 2797424 A GB2797424 A GB 2797424A GB 2797424 A GB2797424 A GB 2797424A GB 249580 A GB249580 A GB 249580A
- Authority
- GB
- United Kingdom
- Prior art keywords
- scale
- diagonal
- length
- cursors
- scales
- 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
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D13/00—Component parts of indicators for measuring arrangements not specially adapted for a specific variable
- G01D13/02—Scales; Dials
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
249,580. Linn, J. D. Nov. 22, 1924. Indicating, optical devices for. - A device to facilitate the reading of the subdivisions of the scale of a measure instrument comprises a casing 2, Figs. 1 and 2, having an object glass 3 adapted to project the image of the graduated scale 1 upon a translucent screen 4 provided with a diagonal ruling. The screen 4 is carried in a cell 5, Fig. 3, having a projection 6 that bears against an eccentric recess 7 in a rotatable ring 8 under the action of springs 9, 10. By this means the diagonal scale is movable parallel to the scale 1 in the direction of its length. The diagonal scale may consist of a single sloping line graduated along its length or comprise a number of spaced sloping lines intersected by lines at right-angles to the graduations of the main scale 1.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2797424A GB249580A (en) | 1924-11-22 | 1924-11-22 | Improvements in and relating to scales and cursors for measuring instruments |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2797424A GB249580A (en) | 1924-11-22 | 1924-11-22 | Improvements in and relating to scales and cursors for measuring instruments |
Publications (1)
Publication Number | Publication Date |
---|---|
GB249580A true GB249580A (en) | 1926-03-22 |
Family
ID=10268243
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2797424A Expired GB249580A (en) | 1924-11-22 | 1924-11-22 | Improvements in and relating to scales and cursors for measuring instruments |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB249580A (en) |
-
1924
- 1924-11-22 GB GB2797424A patent/GB249580A/en not_active Expired
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