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Liquid compass
Bowl: A glass bowl held between a brass plate at the top and at the bottom. The bowl is mounted in double vertical gimbals, one fore and aft and the other athwartships, this one being operated by two rollers. Two heavy brass weights are at the base of the gimbals.
Card: A vertical metal card with black markings gradusted on the top and side to points.
Needle: Unsighted.
Pivot: An inverted pivot spike rests in the pivot cap. There is also an upright spindle which goes to the top of the upper plate to stop the card falling off.
On ACO stand
O.A.Height 8" (20.2cm)
One screw broken off.
Card: A vertical metal card with black markings gradusted on the top and side to points.
Needle: Unsighted.
Pivot: An inverted pivot spike rests in the pivot cap. There is also an upright spindle which goes to the top of the upper plate to stop the card falling off.
On ACO stand
O.A.Height 8" (20.2cm)
One screw broken off.
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Object Details
| ID: | ACO0137 |
|---|---|
| Type: | Liquid compass |
| Display location: | Not on display |
| Creator: | Gowland, George |
| Date made: | 1854 |
| Credit: | National Maritime Museum, Greenwich, London, Admiralty Compass Observatory |
| Measurements: | Overall: 195 mm x 303 mm x 130 mm |