GB561336A - Improvements in and relating to pocket compasses - Google Patents
Improvements in and relating to pocket compassesInfo
- Publication number
- GB561336A GB561336A GB10400/42A GB1040042A GB561336A GB 561336 A GB561336 A GB 561336A GB 10400/42 A GB10400/42 A GB 10400/42A GB 1040042 A GB1040042 A GB 1040042A GB 561336 A GB561336 A GB 561336A
- Authority
- GB
- United Kingdom
- Prior art keywords
- carrier
- compass
- casing
- mirror
- line
- 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
- G01C17/00—Compasses; Devices for ascertaining true or magnetic north for navigation or surveying purposes
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Telescopes (AREA)
Abstract
561,336. Magnetic compasses. RECTA SOC. ANON. July 24, 1942, No. 10400. Convention date, July 24, 1941. [Class 97 (ii)] A pocket compass comprises a compass proper K with rim 7 mounted in a carrier 2 which is adapted to slide in and out of a casing 1. The compass K which has markings on a transparent base is held in position in the carrier 2 by blade springs 6, Fig. 6, and an index mark or lubber line 21 is carried by the carrier. The carrier 2 is mounted in the casing 1 and is held in its end positions by spring catches 8 engaging apertures 3, 4 respectively in the casing 1. A mirror 15 is pivoted at 14 to the carrier and when the latter is drawn out of the casing 1 the mirror swings into the " out " position. When, however, the compass is to be placed on a map, the mirror is swung into the carrier and then slid into the casing along guide grooves in the carrier and casing. Groove 121 and notches 12<11> are provided to act as a. sighting line. Fig. 9 shows the compass in use on a map. A cord S secured to the carrier is used as a line bearing connecting two places and the compass edge is placed along the cord when the bearing may be read off on the compass.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH561336X | 1941-07-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB561336A true GB561336A (en) | 1944-05-16 |
Family
ID=4520313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB10400/42A Expired GB561336A (en) | 1941-07-24 | 1942-07-24 | Improvements in and relating to pocket compasses |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB561336A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4894922A (en) * | 1987-02-26 | 1990-01-23 | Nautech Limited | Hand bearing compass |
| EP3258215A1 (en) * | 2016-06-14 | 2017-12-20 | Haglöf Sweden AB | Laser compass |
-
1942
- 1942-07-24 GB GB10400/42A patent/GB561336A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4894922A (en) * | 1987-02-26 | 1990-01-23 | Nautech Limited | Hand bearing compass |
| EP3258215A1 (en) * | 2016-06-14 | 2017-12-20 | Haglöf Sweden AB | Laser compass |
| US10267948B2 (en) | 2016-06-14 | 2019-04-23 | Haglof Sweden Ab | Compass with laser pointer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB561336A (en) | Improvements in and relating to pocket compasses | |
| GB445312A (en) | Improvements in and relating to compasses | |
| GB943824A (en) | Improvements in or relating to instruments for tracing circles | |
| GB795255A (en) | An improved magnetic compass | |
| GB563545A (en) | Improvements in or relating to route guides or maps | |
| GB582691A (en) | Improvements in or relating to magnetic compasses | |
| GB366210A (en) | Improvements relating to field or marching compasses | |
| GB472794A (en) | Improvements in or relating to compasses | |
| GB550499A (en) | Improvements in magnetic compasses | |
| GB267740A (en) | Improvements in combination drawing instruments | |
| GB565884A (en) | Improvements in levers or inclination testing instruments | |
| GB357925A (en) | Improvements in drawing and like squares | |
| GB462346A (en) | Instrument for use in navigation | |
| GB510220A (en) | Combined protractor and calculating device for use in navigational problems | |
| GB426913A (en) | Improvements in or relating to magnetic compasses | |
| GB391617A (en) | Combined slide rule and surveying instrument | |
| GB509940A (en) | Improvements in or relating to magnetic compass devices | |
| GB602931A (en) | Improvements in and relating to portable sun-dials | |
| GB520864A (en) | Improvements in or relating to map holders | |
| GB607474A (en) | Improvements in and relating to sextant type instruments for marine navigation | |
| GB168495A (en) | Improvements in or relating to course finders | |
| GB134419A (en) | A Reflector Combined with a Pocket, Field or Service or other Compass. | |
| GB451677A (en) | Improvements in bearing instruments for use at sea | |
| GB493717A (en) | Improvements in compass cards | |
| GB494997A (en) | Improvements in nautical course correctors |