Recipiangle
Semi-circle-Two brass semi-circles 4.6" (11.6cm) dia. , pivoted together so that one rotates under the other, graduated 0-180, 0-180. The upper semi-circle carries a fiducial edge for reading the scale of the lower, the lower semi-circle carries a brass clip with a fiducial edge for reading the scale of the upper.
Arma-Two brass arms 9.5" (24.1cm) long, which are formed from the bases of the semi-circles, are jointed to two further arms of the same length, so that when the semi-circles are moved to the 90 deg position the arms form a square.
Compass-Dia. 1.5" (3.8cm) mounted at centre of upper semi-circle. Graduated to 8 points.
Arma-Two brass arms 9.5" (24.1cm) long, which are formed from the bases of the semi-circles, are jointed to two further arms of the same length, so that when the semi-circles are moved to the 90 deg position the arms form a square.
Compass-Dia. 1.5" (3.8cm) mounted at centre of upper semi-circle. Graduated to 8 points.
Object Details
| ID: | NAV1447 |
|---|---|
| Type: | Recipiangle |
| Display location: | Not on display |
| Creator: | Pouilly, J. |
| Date made: | 1686 |
| Credit: | National Maritime Museum, Greenwich, London, Caird Collection |
| Measurements: | 20 mm x 300 mm x 120 mm |
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