GB533543A - Improvements in or relating to anti-vibration pivot mountings for the cards of navigational compasses - Google Patents
Improvements in or relating to anti-vibration pivot mountings for the cards of navigational compassesInfo
- Publication number
- GB533543A GB533543A GB2840839A GB2840839A GB533543A GB 533543 A GB533543 A GB 533543A GB 2840839 A GB2840839 A GB 2840839A GB 2840839 A GB2840839 A GB 2840839A GB 533543 A GB533543 A GB 533543A
- Authority
- GB
- United Kingdom
- Prior art keywords
- compasses
- navigational
- cards
- relating
- wire
- 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)
- Magnetic Ceramics (AREA)
Abstract
533,543. Magnetic compasses. KELVIN, BOTTOMLEY & BAIRD, Ltd., and WRIGHT, C. H. Oct. 21, 1939, No. 28408. [Class 97 (ii)] An anti-vibrational suspension for compass cards comprises a star-formation of wires connecting the centre post to the card. As shown a wire 1 is laced in the manner shown around pins 5 on an annulus frame 4 so as to form chords of the annulus the central portions being soldered at 12 to radial spokes 11 on a boss 3 of the post 13. The pins 5 are provided with bobbins 6 having a felt bush 7 and felt washers 8, 8a, metal washer 9 and nut 10. The wire 1, in lacing, passes under and over at the crossing points to give maximum frictional resistance.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2840839A GB533543A (en) | 1939-10-21 | 1939-10-21 | Improvements in or relating to anti-vibration pivot mountings for the cards of navigational compasses |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2840839A GB533543A (en) | 1939-10-21 | 1939-10-21 | Improvements in or relating to anti-vibration pivot mountings for the cards of navigational compasses |
Publications (1)
Publication Number | Publication Date |
---|---|
GB533543A true GB533543A (en) | 1941-02-14 |
Family
ID=10275135
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2840839A Expired GB533543A (en) | 1939-10-21 | 1939-10-21 | Improvements in or relating to anti-vibration pivot mountings for the cards of navigational compasses |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB533543A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4278161A (en) * | 1978-09-25 | 1981-07-14 | Facet Enterprises, Inc. | Coupling arrangement for an electromagnetic clutch |
US5145330A (en) * | 1988-09-13 | 1992-09-08 | Sanden Corporation | Compressor housing having a structure for preventing the slippage of vibroisolating members |
-
1939
- 1939-10-21 GB GB2840839A patent/GB533543A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4278161A (en) * | 1978-09-25 | 1981-07-14 | Facet Enterprises, Inc. | Coupling arrangement for an electromagnetic clutch |
US5145330A (en) * | 1988-09-13 | 1992-09-08 | Sanden Corporation | Compressor housing having a structure for preventing the slippage of vibroisolating members |
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