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Liquid compass
Liquid compass
An overhead compass
Card: a plastic band 1.8" (4.6 cm) wide attached to a float by a wire framework. The card is white with black markings graduated to quarter points and 0 - 360 in degrees. Both top and bottom of the card are graduated.
Needle: The two needles are each held in a metal tube and attached directly to the float. Length 5" (12.6 cm)
Pivot: The pivot is incorporated into the domed float and the jewel can be removed by a screw at the top.
O.A. height 1.75" (4.5 cm)
An overhead compass
Card: a plastic band 1.8" (4.6 cm) wide attached to a float by a wire framework. The card is white with black markings graduated to quarter points and 0 - 360 in degrees. Both top and bottom of the card are graduated.
Needle: The two needles are each held in a metal tube and attached directly to the float. Length 5" (12.6 cm)
Pivot: The pivot is incorporated into the domed float and the jewel can be removed by a screw at the top.
O.A. height 1.75" (4.5 cm)
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Object Details
| ID: | ACO0883 |
|---|---|
| Type: | Liquid compass |
| Display location: | Not on display |
| Creator: | Observator |
| Date made: | circa 1940 |
| Credit: | National Maritime Museum, Greenwich, London, Admiralty Compass Observatory |
| Measurements: | Overall: 50 mm; Diameter: 170 mm |