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Submarine liquid compass
Submarine liquid compass
Bowl: Diameter 1.99" (5.0 cm) Black painted brass, the sides of the bowl form a bellows and act as a long expansion chamber. Glazed at both top and bottom. Inside of bowl black with a lubber pointer projecting from fore side. Mounted in a black painted brass ring which is pivoted for roll only.
Card: Diameter 1.2" (3.0 cm) Grey metal card with markings made by perforations gradusted to 360 degs and to 8 points.
Needle: Four flat needles carried in two tiers on a very light wire framework below card.
Pivot: Pivot stem attached to centre of glass at base of bowl. Pivot pin engages in jewelled pivot cup carried at the centre of the card.
O.A. Height 14." (3.5 cm)
Bowl: Diameter 1.99" (5.0 cm) Black painted brass, the sides of the bowl form a bellows and act as a long expansion chamber. Glazed at both top and bottom. Inside of bowl black with a lubber pointer projecting from fore side. Mounted in a black painted brass ring which is pivoted for roll only.
Card: Diameter 1.2" (3.0 cm) Grey metal card with markings made by perforations gradusted to 360 degs and to 8 points.
Needle: Four flat needles carried in two tiers on a very light wire framework below card.
Pivot: Pivot stem attached to centre of glass at base of bowl. Pivot pin engages in jewelled pivot cup carried at the centre of the card.
O.A. Height 14." (3.5 cm)
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Object Details
| ID: | ACO0535 |
|---|---|
| Type: | Submarine liquid compass |
| Display location: | Not on display |
| Creator: | Unknown |
| Date made: | 1940 |
| Credit: | National Maritime Museum, Greenwich, London, Admiralty Compass Observatory |
| Measurements: | Overall: 35 mm; Diameter: 65 mm |