Electrical engineer's pocket-book: a hand-book of useful data for electricians and electrical engineers (1901)
Foster, Horatio A. (Horatio Alvah), 1858-1913 · New York, D. Van Nostrand co.; London, E.& F.N. Spon, ltd. · leaf 747
than 5,000 yards ; and the 30-inch projector,at a distance of not less than 6,000 yards. The connections for the electrically controlled projectors as manufacturedby the General Electric Company are shown in the diagram. The fields ofthe two training motors an in series with each other and… … POWER SYSTEM. 735 position by springs and short circuits both motor armatures thus stoppingall movement. The horizontal training motor drives through a worm gear, and the verti-cal motor through a revolving nut on a vertical screw shaft: all gearingcan be easily thrown out for quick hand control.…
Electrical engineering
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