Liquid compass
Liquid compass
Card: A mica band 1.5" wide attached to the needles by a wire framework. The card is white with black markings graduated to quarter points and 0 - 360 in degrees
Needle: The four needles, in two pairs, are each held in metal tubes. One pair go through the dome and the other pair is attached by wire. Length 4" & 5.25" (10.2 cm & 13.4 cm)
Pivot: The pivot cap is incorporated into the domed float and the jewel can be removed by a screw on the top of the dome. The dome is dented.
O.A. height 1.5" (3.8 cm)
Card: A mica band 1.5" wide attached to the needles by a wire framework. The card is white with black markings graduated to quarter points and 0 - 360 in degrees
Needle: The four needles, in two pairs, are each held in metal tubes. One pair go through the dome and the other pair is attached by wire. Length 4" & 5.25" (10.2 cm & 13.4 cm)
Pivot: The pivot cap is incorporated into the domed float and the jewel can be removed by a screw on the top of the dome. The dome is dented.
O.A. height 1.5" (3.8 cm)
For more information about using images from our Collection, please contact RMG Images.
Object Details
ID: | ACO0890 |
---|---|
Type: | Liquid compass |
Display location: | Not on display |
Creator: | T. S. & J. D. Negus; E. S. Ritchie & Sons |
Date made: | circa 1918 |
Credit: | National Maritime Museum, Greenwich, London, Admiralty Compass Observatory |
Measurements: | Overall: 38 mm; Diameter: 190 mm |
Your Request
If an item is shown as “offsite”, please allow eight days for your order to be processed. For further information, please contact Archive staff:
Email: library@rmg.co.uk
Tel: +44 (0)20 8312 6516 (during Library opening hours)
Click “Continue” below to continue processing your order with the Library team.