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Liquid compass
Bowl: Brass painted black. Spherical glass dome at top, flat opaque glass at bottom. Four white lubber spikes. Heavy ring weight at bottom. Expansion chamber can be sighted at bottom of bowl. Mounted in brass gimbal ring.
Card: White with black markings graduated to quarter points and to 360 degrees. Large domed float in centre with hollow surround, dome has shadow spike on top. Diameter card.. 7" (17.8 cm)
Needle: Two needles held in tubes on framework attached to bottom of float.
Pivot: Unsighted.
O.A. height 8.5" (21.5 cm)
Card: White with black markings graduated to quarter points and to 360 degrees. Large domed float in centre with hollow surround, dome has shadow spike on top. Diameter card.. 7" (17.8 cm)
Needle: Two needles held in tubes on framework attached to bottom of float.
Pivot: Unsighted.
O.A. height 8.5" (21.5 cm)
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Object Details
| ID: | ACO0180 |
|---|---|
| Type: | Liquid compass |
| Display location: | Not on display |
| Creator: | Kelvin & Wilfred O White Co |
| Date made: | circa 1939 |
| Credit: | National Maritime Museum, Greenwich, London, Admiralty Compass Observatory |
| Measurements: | Overall: 190 mm; Diameter: 280 mm |