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Submarine liquid compass
Bowl: Brass painted black. Glazed top and bottom. Fill hole and expansion chambers on side. Set in gimbals. White on inside walls with black lubber line.
Card: Mica. Has three sets of graduations. Outer: White with black markings graduated to 1/4 points and quadrantally in degrees. Centre: Clear mica with black markings graduated to 16 points and quadrantally in degrees. Inner: Black with white markings graduated to 16 points. The centre and inner graduations are opposite to the outer ones. Has a large domed float at the centre.
Needle: Four needles in tubes slung beneath card.
Pivot: Stem is attached to metal diameter rod.
Set on ACO stand
O.A. Height 8.5" (21.6 cm)
Card: Mica. Has three sets of graduations. Outer: White with black markings graduated to 1/4 points and quadrantally in degrees. Centre: Clear mica with black markings graduated to 16 points and quadrantally in degrees. Inner: Black with white markings graduated to 16 points. The centre and inner graduations are opposite to the outer ones. Has a large domed float at the centre.
Needle: Four needles in tubes slung beneath card.
Pivot: Stem is attached to metal diameter rod.
Set on ACO stand
O.A. Height 8.5" (21.6 cm)
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Object Details
| ID: | ACO0151 |
|---|---|
| Type: | Submarine liquid compass |
| Display location: | Not on display |
| Creator: | Kelvin Bottomley & Baird Ltd |
| Date made: | 1908 |
| Credit: | National Maritime Museum, Greenwich, London, Admiralty Compass Observatory |
| Measurements: | Overall: 200 mm x 300 mm x 275 mm |