Liquid compass and binnacle

Liquid compass with binnacle and binnacle hood.

Bowl: Dia. 8.25" 921.0 cm). Grey painted brass, filler plug at side, expansion chamber at base incorporated with glazed bottom of bowl. Inside of bowl painted white with a black wire lubber pointer projecting from side of bowl. On edge of bowl, below lubber line, there is a white painted ring graduated 0 - 180 - 0 degrees. Mounted in a grey painted brass gimbal ring 9.75" (24.8 cm) dia.

Card: 6.0" 915.2 cm). White painted mica with black markings, graduated quadrantally in degrees with a second set of mirror graduations for use with azimuth mirror.

Needle: Unsighted.

Pivot: Unsighted.

Binnacle: Dia at top 11.25" (28.6 cm). Dia at base 14.0" (35.5 cm). Varnished wood with grey painted brass fittings. Deep brass top. Fitted with clinometer, sphere brackets and spheres, four correcting coils, 'Flinders Bar' 18.5" (47.0 cm) long. Two wooden doors give access to fore-and-aft and athwartship corrector magnet racks and bucket for vertical corrector magnets.

Hood: Grey painted brass with large oval aperture with lid on one side, a slit with sliding shutter on the other side. There is a round aperture with cover at top. Fitted with an oil lamp braket with oil lamp.

Incorporated on the side of the binnacle is a grey painted brass wheel for training 'asdic gear' and this also rotates a mirror which reflects a beam of light from the central lamp onto the card.

O.A. height 53" (134.6 cm)

On verge ring: PATT. 195 TA N. 2073.H.
Inscription: ' B Compass corrector coils Admiralty pattern 929 serial No 514497'.
Label: ' Compass patt. 1952A, binnacle patt. 1960'.

Object Details

ID: ACO1084
Type: Liquid compass and binnacle
Display location: Not on display
Creator: Henry Hughes & Son Limited
Date made: 1936
Credit: National Maritime Museum, Greenwich, London, Admiralty Compass Observatory
Measurements: Overall: 1370 mm x 730 mm x 580 mm x 161 kg