GB117096A - Aeronautical Sighting and Range Finding Device for use in Speed-measuring and Bomb-dropping Observations upon Aircraft. - Google Patents
Aeronautical Sighting and Range Finding Device for use in Speed-measuring and Bomb-dropping Observations upon Aircraft.Info
- Publication number
- GB117096A GB117096A GB607017A GB607017A GB117096A GB 117096 A GB117096 A GB 117096A GB 607017 A GB607017 A GB 607017A GB 607017 A GB607017 A GB 607017A GB 117096 A GB117096 A GB 117096A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sighting
- aircraft
- speed
- lines
- terrestrial
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41G—WEAPON SIGHTS; AIMING
- F41G3/00—Aiming or laying means
- F41G3/22—Aiming or laying means for vehicle-borne armament, e.g. on aircraft
- F41G3/24—Bombsights
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
Abstract
117,096. Down, T. M. April 30, 1917. Speed indicators operating by sighting terrestrial objects.-Relates to a sighting-device for use on aircraft for determining speed relative to the ground, the distance of terrestrial objectives, and the instants for releasing bombs, and comprises a casing J, Fig. 1, at the upper end of which is pivotally mounted a sighting tube or telescope L<2> which can be swung in the plane of the longitudinal axis of the machine by rack-and-pinion mechanism. Above the open bottom of the casing, is mounted a transparent disk A capable of being rotated by a friction disk P and operating button P<2>. The disk is divided into sectors C, Fig. 4, each sector being marked at the circumference to indicate the height at which it is to be used, and provided with a central line D for the course line. Radial lines E on each side of the lines D serve to indicate drift. Each line D is divided by lines F, to form a scale representing terrestrial distances. By observing the time taken by a terrestrial object to cross two or more lines F, the speed of the aircraft can be calculated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB607017A GB117096A (en) | 1917-04-30 | 1917-04-30 | Aeronautical Sighting and Range Finding Device for use in Speed-measuring and Bomb-dropping Observations upon Aircraft. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB607017A GB117096A (en) | 1917-04-30 | 1917-04-30 | Aeronautical Sighting and Range Finding Device for use in Speed-measuring and Bomb-dropping Observations upon Aircraft. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB117096A true GB117096A (en) | 1918-07-02 |
Family
ID=32670344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB607017A Expired GB117096A (en) | 1917-04-30 | 1917-04-30 | Aeronautical Sighting and Range Finding Device for use in Speed-measuring and Bomb-dropping Observations upon Aircraft. |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB117096A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3199197A (en) * | 1961-11-28 | 1965-08-10 | Thomas L Macleod | Optical device for determining the size of a surface object from an aircraft |
-
1917
- 1917-04-30 GB GB607017A patent/GB117096A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3199197A (en) * | 1961-11-28 | 1965-08-10 | Thomas L Macleod | Optical device for determining the size of a surface object from an aircraft |
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