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Edoardo Baroni
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22,513. Baroni, E. Sept. 28. Angle - measuring instruments. - Relates to departure rules. A scale graduated in degrees has a special series of angles 10 marked on it and observations of the lighthouse &c. are made in succession along two adjacent observation angles after the instrument 1 has been set as usual with its zero line parallel to the direction of the ship. The pivotal arm 2 carries. an ocular 5 and objective 7.
GB191022513D1910-09-281910-09-28Improvements in Departure Rules.
ExpiredGB191022513A
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