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Bearing Plate
Bearing plate
Bowl: Black plastic, electric light fitting at base, glazed top. Mounted in black plastic gimbal ring 10.4" (26.5 cm) diameter which is carried in a black plastic U shaped bracket with mounting plate. Four lubber lines engraved on verge ring.
Card: Diameter 7.9" (20 cm) plastic, black with a white ring having black marking graduated to 360 degrees with a second set of graduations 180 degrees out of phase. The card is turned by a T handle mounted at centre of verge glass and is clamped by a knurled knob.
O.A. Height 9.4" (24.0 cm)
Bowl: Black plastic, electric light fitting at base, glazed top. Mounted in black plastic gimbal ring 10.4" (26.5 cm) diameter which is carried in a black plastic U shaped bracket with mounting plate. Four lubber lines engraved on verge ring.
Card: Diameter 7.9" (20 cm) plastic, black with a white ring having black marking graduated to 360 degrees with a second set of graduations 180 degrees out of phase. The card is turned by a T handle mounted at centre of verge glass and is clamped by a knurled knob.
O.A. Height 9.4" (24.0 cm)
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Object Details
| ID: | ACO0548 |
|---|---|
| Type: | Bearing Plate |
| Display location: | Not on display |
| Creator: | Steger, Jr |
| Date made: | circa 1945 |
| Credit: | National Maritime Museum, Greenwich, London, Admiralty Compass Observatory |
| Measurements: | Overall: 212 mm x 320 mm x 275 mm |