The new international encyclopaedia . The transmitter comprises the aerialwire, 1, the induction coil, 2, spark-gap,3, and a key, 4, for throwing the aerialwire in and out of tune; the ttining of theoscillator and resonator is aecom|)lished by avariable inductance and capacity made of anumber of parallel wires or grid immersed inoil and controlled by movable contacts, 5; thiseliminates condensers and coils for obtaininggiven values of capacity and inductance, andpreserves the proper relations between these co-cincicnts. The resonator of the receiver com-prises a similar grid. 0, used for tunin
The new international encyclopaedia . The transmitter comprises the aerialwire, 1, the induction coil, 2, spark-gap,3, and a key, 4, for throwing the aerialwire in and out of tune; the ttining of theoscillator and resonator is aecom|)lished by avariable inductance and capacity made of anumber of parallel wires or grid immersed inoil and controlled by movable contacts, 5; thiseliminates condensers and coils for obtaininggiven values of capacity and inductance, andpreserves the proper relations between these co-cincicnts. The resonator of the receiver com-prises a similar grid. 0, used for tuning anelectric wave detector, actuating the tele-))hone receiver; the Morse coile is employed,the messages being read from the clicks in thetelephone receiver. The electric wave detector isnovel in the art of wireless telegrajihy; it con-sists (if a sliint loop of silver wiri. 13, Fig. 10,having a platinum core; this wire is drawn downto .002 inch: the loop is then fastened to theIcadiiig-in wires, 14; tlic tip of the silver loop i». i_ OO lis WIRELESS TELEGRAPHY. 589 WIRE ROPE. then dissolved away with nitric acid, leaving theplatinum core exposed; the whole is tlien sealedin a glaas bulb, 15, which is finally exhausted.
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Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
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Keywords: ., bo, bookcentury1900, bookdecade1900, bookpublishernewyorkdoddmead
