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Liquid compass
Mariners liquid compass (vertical card compass for landing craft)
Bowl-Black painted metal, filler plug at top, expansion chamber at base. Electric lamp fitting and A and B correctors at top. Inside of bowl painted black. A wire lubber line is fitted behind verge glass and appears to be integral with pivot stem mounting.
Card-Very light vertical skeleton rim with cut-out numerals, graduated to 360 degs attached by wire framework to pivot at centre.
Needle-Two edge bar magnets mounted below card.
Pivot-Inverted, jewel cup mounted on stem attached to base of bowl.
Bowl-Black painted metal, filler plug at top, expansion chamber at base. Electric lamp fitting and A and B correctors at top. Inside of bowl painted black. A wire lubber line is fitted behind verge glass and appears to be integral with pivot stem mounting.
Card-Very light vertical skeleton rim with cut-out numerals, graduated to 360 degs attached by wire framework to pivot at centre.
Needle-Two edge bar magnets mounted below card.
Pivot-Inverted, jewel cup mounted on stem attached to base of bowl.
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Object Details
| ID: | ACO0769 |
|---|---|
| Type: | Liquid compass |
| Display location: | Not on display |
| Creator: | Unknown |
| Date made: | 1945 |
| Credit: | National Maritime Museum, Greenwich, London, Admiralty Compass Observatory |
| Measurements: | Overall: 100 mm x 115 mm x 140 mm |