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Liquid compass
Liquid compass.
Bowl: Brown bakelite bowl with black lubber lines carried on three white plastic struts set 90 degs apart. There is also a piece of white plastic, broken, graduated in degrees 150 - 215. There is a filler hole on side. An aluminium verge ring holds the glass dome in place. Expansion chamber seems to be set in base of bowl.
Card: No card.
Needle: Two square section bar needles held in plastic containter and slung beneath clear plastic float with wings. Length 2.1" (6 cm)
Pivot: A metal pivot spike set in base of bowl by three screws.
O.A. Height 8" (20.3 cm)
Bowl: Brown bakelite bowl with black lubber lines carried on three white plastic struts set 90 degs apart. There is also a piece of white plastic, broken, graduated in degrees 150 - 215. There is a filler hole on side. An aluminium verge ring holds the glass dome in place. Expansion chamber seems to be set in base of bowl.
Card: No card.
Needle: Two square section bar needles held in plastic containter and slung beneath clear plastic float with wings. Length 2.1" (6 cm)
Pivot: A metal pivot spike set in base of bowl by three screws.
O.A. Height 8" (20.3 cm)
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Object Details
| ID: | ACO0514 |
|---|---|
| Type: | Liquid compass |
| Display location: | Not on display |
| Creator: | Blume, Dr. |
| Date made: | circa 1940 |
| Credit: | National Maritime Museum, Greenwich, London, Admiralty Compass Observatory |
| Measurements: | Overall: 210 mm; Diameter: 240 mm |
| Parts: | Liquid compass |