GB190812791A - Improvements in Range Finders. - Google Patents
Improvements in Range Finders.Info
- Publication number
- GB190812791A GB190812791A GB190812791DA GB190812791A GB 190812791 A GB190812791 A GB 190812791A GB 190812791D A GB190812791D A GB 190812791DA GB 190812791 A GB190812791 A GB 190812791A
- Authority
- GB
- United Kingdom
- Prior art keywords
- range
- prism
- finders
- binocular
- carries
- 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
Abstract
12,791. Forbes, G. June 15. Range - finders ;telemeters.-Relates to stereoscopic range - finders of the type described in Specifications No. 5267, A.D. 1901, No. 12,422, A.D. 1902, and No. 4258, A.D. 1903. The base a carries a single Prandl prism b at each end reflecting into a removable binocular f, which has a single erecting-prism h for both telescopes and in which the fiduciary pictures are protected, as by being mounted between the prism h and the field lenses j which are also made thick so that any dust on the exposed surface is out of focus. The eye lenses of the binocular are made in one with the rhomboidal prisms k which are used to allow interpupillary adjustment, and the eyepieces are mounted on a frame l<1> which is adjusted for focusing by a wheel l<2>. The means for adjusting one image of the range-finder consists of a pair of wedge-shaped prisms c, c<1>, Fig. 1, mounted in supports c<2>, c<3> and rotated, when desired, simultaneously but in opposite directions by appropriate gearing. One support carries, a pointer and the other a range scale.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB190812791T | 1908-06-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB190812791A true GB190812791A (en) | 1909-04-29 |
Family
ID=32636035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB190812791D Expired GB190812791A (en) | 1908-06-15 | 1908-06-15 | Improvements in Range Finders. |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB190812791A (en) |
-
1908
- 1908-06-15 GB GB190812791D patent/GB190812791A/en not_active Expired
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