GB191508896A - Improvements in or connected with Range Finders. - Google Patents
Improvements in or connected with Range Finders.Info
- Publication number
- GB191508896A GB191508896A GB191508896DA GB191508896A GB 191508896 A GB191508896 A GB 191508896A GB 191508896D A GB191508896D A GB 191508896DA GB 191508896 A GB191508896 A GB 191508896A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rod
- range
- apertures
- plate
- elevations
- 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
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C3/00—Measuring distances in line of sight; Optical rangefinders
- G01C3/22—Measuring distances in line of sight; Optical rangefinders using a parallactic triangle with variable angles and a base of fixed length at, near, or formed by the object
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
Abstract
8896. Ratcliffe, E. S. June 16. Range-finders.-A distant-base range-finder comprises a gauge plate permanently attached to a rod by which it is held at the required distance from the eye. The gauge plate a may have one or more V-shaped apertures A through which the distant object may be sighted, the aperture used depending upon the known dimensions of the object and the aspect presented. One or both of the sides of the apertures may be stepped ; or they may be straight and provided with notches or graduations, the various ranges being marked on the plate adjacent to the apertures. Alternatively, the apertures may have projections of different lengths and elevations, or separate slots may be provided for each range, or fingers projecting from the plate, one of which is adjustable in position, may be provided. The rod b may be pivotally connected to the plate and may be provided with a clinometer c, so that the elevation of an aircraft may be determined by sighting along the rod. The altitude of the aircraft may then be determined by plotting the range and elevations on a chart. In large forms of the apparatus, the rod may be adjustably mounted on trunnions on a support capable of turning about a vertical axis, and a peepsight may be slidably mounted on the observer's end of the rod.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB191508896T | 1915-06-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB191508896A true GB191508896A (en) | 1916-06-15 |
Family
ID=32650120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB191508896D Expired GB191508896A (en) | 1915-06-16 | 1915-06-16 | Improvements in or connected with Range Finders. |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB191508896A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2734273A (en) * | 1956-02-14 | Measurement indicating means for | ||
| US3000100A (en) * | 1960-04-20 | 1961-09-19 | Robert E Reinhardt | Sight measuring instrument |
| US3190003A (en) * | 1962-03-22 | 1965-06-22 | Swift Instr Inc | Reticle for optical instrument |
| US3842511A (en) * | 1972-08-07 | 1974-10-22 | G Young | Integral hand held tailgating device |
-
1915
- 1915-06-16 GB GB191508896D patent/GB191508896A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2734273A (en) * | 1956-02-14 | Measurement indicating means for | ||
| US3000100A (en) * | 1960-04-20 | 1961-09-19 | Robert E Reinhardt | Sight measuring instrument |
| US3190003A (en) * | 1962-03-22 | 1965-06-22 | Swift Instr Inc | Reticle for optical instrument |
| US3842511A (en) * | 1972-08-07 | 1974-10-22 | G Young | Integral hand held tailgating device |
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