GB117747A - - Google Patents
Info
- Publication number
- GB117747A GB117747A GB117747DA GB117747A GB 117747 A GB117747 A GB 117747A GB 117747D A GB117747D A GB 117747DA GB 117747 A GB117747 A GB 117747A
- Authority
- GB
- United Kingdom
- Prior art keywords
- arms
- map
- knife edge
- stations
- height
- 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.)
- Active
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/10—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 by using measurements of speed or acceleration
- G01C21/12—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 by using measurements of speed or acceleration executed aboard the object being navigated; Dead reckoning
- G01C21/14—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 by using measurements of speed or acceleration executed aboard the object being navigated; Dead reckoning by recording the course traversed by the object
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Automation & Control Theory (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
117,747. Rye, A. L. Oct. 16, 1917. Plane-trigonometry calculators.-In height and range finders of the kind in which two indicator arms D' E<1> pivoted on rotatable mountings disposed above the positions of the observation stations on a map are set in accordance with data ascertained at the observing stations, a movable vertical knife edge K being also provided, the arms D', E<1>, are arranged with their planes vertical or substantially so, and are provided with graduated knife edges on their lower and upper edges respectively. Difference in height between the stations is compensated for by the insertion of a packing disk F, and the knife edge K is adjustably mounted on a support K' so that its zero may be brought to the level of the pivot of one of the arms. The support K' carries a point which can be depressed to mark the map at the point below the vertical knife edge K, the marked points serving to determine the horizontal velocity of the target. The mountings for the arms D', E' may be sunk in the map, so that the pivot points are flush with its surface.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB117747A true GB117747A (en) |
Family
ID=1712070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB117747D Active GB117747A (en) |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB117747A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2472138A (en) * | 1945-05-30 | 1949-06-07 | Hyam G Yamins | Plotter computer for determining shellfire position |
| US2582080A (en) * | 1950-02-07 | 1952-01-08 | Chase Aircraft Company Inc | Space vector analyzer |
-
0
- GB GB117747D patent/GB117747A/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2472138A (en) * | 1945-05-30 | 1949-06-07 | Hyam G Yamins | Plotter computer for determining shellfire position |
| US2582080A (en) * | 1950-02-07 | 1952-01-08 | Chase Aircraft Company Inc | Space vector analyzer |
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