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Liquid compass
Liquid compass
Card: A mica band 1.4" wide attached to the upper pair of needles and the float by a wire framework. The card is white with black markings graduated to quarter points and quadrantally in degrees.
Needle: The four needles, in two pairs, are all the same dimensions and are each housed in metal envelopes. Length 6.8" x 0.6" (17.6 cm x 2 cm). The upper pair is attached directly to the domed float and the lower pair by a wire framework.
Pivot: The pivot is incorporated into the mushroom domed float and the jewel can be removed by a screw on the top.
O.A. height 1.5" (3.6 cm)
Card: A mica band 1.4" wide attached to the upper pair of needles and the float by a wire framework. The card is white with black markings graduated to quarter points and quadrantally in degrees.
Needle: The four needles, in two pairs, are all the same dimensions and are each housed in metal envelopes. Length 6.8" x 0.6" (17.6 cm x 2 cm). The upper pair is attached directly to the domed float and the lower pair by a wire framework.
Pivot: The pivot is incorporated into the mushroom domed float and the jewel can be removed by a screw on the top.
O.A. height 1.5" (3.6 cm)
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Object Details
| ID: | ACO0857 |
|---|---|
| Type: | Liquid compass |
| Display location: | Not on display |
| Creator: | Ludolph, W. |
| Date made: | 1936 |
| Credit: | National Maritime Museum, Greenwich, London, Admiralty Compass Observatory |
| Measurements: | Overall: 50 mm; Diameter: 230 mm |