Bond, A. Russell (Alexander Russell), 1876- · New York, The Century co. · leaf 264
ntrol station.The chart on which the plotting is done iscovered with a sheet of glass. Holes arepierced through the glass at the location of eachcompass station. See Fig. 12. On the chart,around each station, there is a dial marked offin the 360 degrees of the circle. A threadpasses through the… … 207 208 INVENTIONS OF THE GREAT WAR the corresponding degree on the dial. Thesame is done as each station reports and wherethe threads cross, the ship must be located. Not only can the direction-finder be used topilot a ship into a harbor, but it will also serveto prevent collisions at sea, because…
Inventions
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