Liquid compass - submarine
Liquid compass with a wooden box. For use in submarine projector binnacle.
Bowl: Grey painted brass, filler plug at side, expansion chamber at base incorporated with glazed bottom of bowl. Inside of bowl painted white with lubber mark carried on a large black metal frame attached to the side. Mounted in grey painted brass gimbal ring 9.5" (24.1 cm) dia.
Card: Diameter 3.25" (8.2 cm) Black painted mica with clear markings, graduated quadrantally in degrees and to 360 degrees. Attached to black painted float at centre.
Needle: 2 x 2.0" (5.1 cm) of circular section mounted below float.
Pivot: Black metal pivot stem, secured at centre of bridge mounted across centre of bowl, carries a steel pivot point which engages in jewelled conical cap at centre of float.
O.A. height 3.15" (8.0 cm)
In a fitted wooden carrying case 10.0" x 10.0" x 5.5" (25.4 x 25.4 x 14.0 cm)
Bowl: Grey painted brass, filler plug at side, expansion chamber at base incorporated with glazed bottom of bowl. Inside of bowl painted white with lubber mark carried on a large black metal frame attached to the side. Mounted in grey painted brass gimbal ring 9.5" (24.1 cm) dia.
Card: Diameter 3.25" (8.2 cm) Black painted mica with clear markings, graduated quadrantally in degrees and to 360 degrees. Attached to black painted float at centre.
Needle: 2 x 2.0" (5.1 cm) of circular section mounted below float.
Pivot: Black metal pivot stem, secured at centre of bridge mounted across centre of bowl, carries a steel pivot point which engages in jewelled conical cap at centre of float.
O.A. height 3.15" (8.0 cm)
In a fitted wooden carrying case 10.0" x 10.0" x 5.5" (25.4 x 25.4 x 14.0 cm)
For more information about using images from our Collection, please contact RMG Images.
Object Details
ID: | ACO1098 |
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Type: | Liquid compass - submarine |
Display location: | Not on display |
Creator: | Unknown |
Date made: | circa 1939 |
Credit: | National Maritime Museum, Greenwich, London, Admiralty Compass Observatory |
Measurements: | Overall: 76 mm; Diameter: 245 mm |