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Liquid compass
Liquid compass.
Bowl: Black painted brass, no filler plug, external expansion chamber at base. Verge glass has a brass mounting at centre to accommodate an azimuth instrument. Inside of bowl unpainted, carries one lubber line (black line on white ground on a brass strip) attached to side of bowl. Mounted in brass gimbal ring Diameter 12.0" (30.5 cm). Mounted below bowl is a brass tube with detachable cover which carries corrector magnets, these are fitted in racks supplied with graduated scales . (See patent No 24807 of 1895)
Card: Diameter 8.5" (231.5 cm) Metal painted white with black markings, graduated to 360 degrees and to 1/4 points, detached to large unpainted float dome at centre.
Neeedle: Unsighted.
Pivot: Unsighted.
O.A. Height 12.0" (30.5 cm)
Bowl: Black painted brass, no filler plug, external expansion chamber at base. Verge glass has a brass mounting at centre to accommodate an azimuth instrument. Inside of bowl unpainted, carries one lubber line (black line on white ground on a brass strip) attached to side of bowl. Mounted in brass gimbal ring Diameter 12.0" (30.5 cm). Mounted below bowl is a brass tube with detachable cover which carries corrector magnets, these are fitted in racks supplied with graduated scales . (See patent No 24807 of 1895)
Card: Diameter 8.5" (231.5 cm) Metal painted white with black markings, graduated to 360 degrees and to 1/4 points, detached to large unpainted float dome at centre.
Neeedle: Unsighted.
Pivot: Unsighted.
O.A. Height 12.0" (30.5 cm)
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Object Details
| ID: | ACO0504 |
|---|---|
| Type: | Liquid compass |
| Display location: | Not on display |
| Creator: | H. & F. Muller |
| Date made: | 1895 |
| Credit: | National Maritime Museum, Greenwich, London, Admiralty Compass Observatory |
| Measurements: | Overall: 310 mm; Diameter: 340 mm |