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Description: | Consists of a bowl shaped frame hung in gimbals. The centre part of the face of the bowl is recessed and within this a graduated steel plate (graduated quadrantally in degrees) revolves about a centre pin. A narrow ridge seperates the centre recess from another recess about 0.5" wide, in which an azimuth circle revolves; this unit carrying sight vanes, dark shades, and a reflecting glass. On the two ridges enclosing the circle, lines are engraved to represent the lubber line, and when taking bearings the centre plate is set to show the ship's head, and the bearings of an object are taken by means of the azimuth circle.
Mounted in wooden box 8.25" x 8.25" x 5.5" (21 x 21 x 14cm)
AUDIT - two unnumbered parts .Patent No 2652, 1854
caption: Record Shot - Do not reproduce. | Publisher: | "http://collections.rmg.co.uk/" | Rights holder: | "Royal Museums Greenwich" | Subjects: | peloruses | Source: | Royal Museums Greenwich | Identifier: | http://collections.rmg.co.uk/collections... | Go to resource |
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