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Liquid compass
Liquid compass
Card: A canvas covered mica band 1.5" (3.8 cm) wide attached to the needles by a wire framework. The card is white with black markings graduated to eight points and 0 - 360 in degrees.
Needle: The six needles, in three pairs, are each held in a metal tube and all are attached to the domed float by a metal framework. Lengths 2.6" (6.7 cm), 4.2" (10.5 cm) & 4.75" (12.1 cm)
Pivot: The pivot cap is incorporated into the domed float and the jewel can be removed by a screw at the top of the dome.
There are two unstretched spring-like attachments on the framework that carries the needles.
O.A.height 1.5" (3.8 cm)
Card: A canvas covered mica band 1.5" (3.8 cm) wide attached to the needles by a wire framework. The card is white with black markings graduated to eight points and 0 - 360 in degrees.
Needle: The six needles, in three pairs, are each held in a metal tube and all are attached to the domed float by a metal framework. Lengths 2.6" (6.7 cm), 4.2" (10.5 cm) & 4.75" (12.1 cm)
Pivot: The pivot cap is incorporated into the domed float and the jewel can be removed by a screw at the top of the dome.
There are two unstretched spring-like attachments on the framework that carries the needles.
O.A.height 1.5" (3.8 cm)
For more information about using images from our Collection, please contact RMG Images.
Object Details
| ID: | ACO0896 |
|---|---|
| Type: | Liquid compass |
| Display location: | Not on display |
| Creator: | E. S. Ritchie & Sons |
| Date made: | circa 1930 |
| Credit: | National Maritime Museum, Greenwich, London, Admiralty Compass Observatory |
| Measurements: | Overall: 45 mm; Diameter: 185 mm |
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