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Liquid compass - aircraft compass
Liquid compass.
Bowl: The bowl itself is an expansion chamber. It has a heavy brass ring at the top and copper clips at the base. It is glazed top and bottom. Inside the brass ring is a screwed in ring which itself has six screws, this is repeated at the base. Filler screw at the top.
Card: Small mica card painted black with the markings left clear. Graduated to 8 points and 0 - 360 by degrees.
Needle: The two bar needles are set beneath the card.
Pivot: The card is pivoted at the top and bottom but it is impossible to see the exact construction.
O.A. Height 2.25" (5.7 cm)
Bowl: The bowl itself is an expansion chamber. It has a heavy brass ring at the top and copper clips at the base. It is glazed top and bottom. Inside the brass ring is a screwed in ring which itself has six screws, this is repeated at the base. Filler screw at the top.
Card: Small mica card painted black with the markings left clear. Graduated to 8 points and 0 - 360 by degrees.
Needle: The two bar needles are set beneath the card.
Pivot: The card is pivoted at the top and bottom but it is impossible to see the exact construction.
O.A. Height 2.25" (5.7 cm)
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Object Details
| ID: | ACO0590 |
|---|---|
| Type: | Liquid compass - aircraft compass |
| Display location: | Not on display |
| Creator: | Plath, C. |
| Date made: | 1940 |
| Credit: | National Maritime Museum, Greenwich, London, Admiralty Compass Observatory |
| Measurements: | Overall: 57 mm x 57 mm x 57 mm |
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