Improved binnacle top for taking bearings

摘要

539,257. Mariners' compasses. GILLIE, J. C., and GILLIE, J. W. June 13, 1940, No. 10296. [Class 97 (ii)] The rotatable binnacle top B is provided with a fixed lens or mirror A and an adjustable mirror ASP1/SP, two hinged windows D, DSP1/SP and a large glass top G, so that the bearing of a distant object which is aligned on the mirror ASP1/SP by rotating the binnacle and viewing through the windows D, DSP1/SP may be ascertained since the bearing is reflected from the compass card C by mirror or lens A to the mirror ASP1/SP. Specification 393,035 is referred to.