Telephone Construction, Installation, Wiring, Operation and Maintenance: A Practical Reference Book and Guide for Electricians, Wiremen, Engineers, Contractors, Architects, and Others Interested in Standard Telephone Practice...N. W. Henley publishing Company, 1908 - 171 стор. |
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Сторінка 38
... ringing the bell at the other end of the line . Signaling current coming in at m , passes through the magnet windings of the bell b , the shunt s , the hook switch a , the contact c , and out at n , ringing the bell b . Condition ( 1 ) is ...
... ringing the bell at the other end of the line . Signaling current coming in at m , passes through the magnet windings of the bell b , the shunt s , the hook switch a , the contact c , and out at n , ringing the bell b . Condition ( 1 ) is ...
Сторінка 39
... ringing the bell b . Condition ( 1 ) is , therefore , satisfied . With the exception of the shunt s being opened as already explained , and the armature winding of the generator introduced , the circuit through the apparatus shown ...
... ringing the bell b . Condition ( 1 ) is , therefore , satisfied . With the exception of the shunt s being opened as already explained , and the armature winding of the generator introduced , the circuit through the apparatus shown ...
Сторінка 46
... ringing current from any one of them will operate all of the bells simultaneously . The magnet coils of ringers in series tele- phone sets are , there- fore , wound to as low a resistance as possible ; 80 ohms is considered standard ...
... ringing current from any one of them will operate all of the bells simultaneously . The magnet coils of ringers in series tele- phone sets are , there- fore , wound to as low a resistance as possible ; 80 ohms is considered standard ...
Сторінка 55
... ringing once to signal one station , twice to signal another , and so on according to a predetermined code . The party he wishes , recognizing the number of rings as cor- responding to his instrument , goes to the tele- phone and ...
... ringing once to signal one station , twice to signal another , and so on according to a predetermined code . The party he wishes , recognizing the number of rings as cor- responding to his instrument , goes to the tele- phone and ...
Сторінка 56
... ringing whenever a signal is sent . An Extension Bell in a Series Station is often of great convenience , enabling two parties in dif- ferent rooms , for example , to utilize the same tele- phone set and each have their own signaling ...
... ringing whenever a signal is sent . An Extension Bell in a Series Station is often of great convenience , enabling two parties in dif- ferent rooms , for example , to utilize the same tele- phone set and each have their own signaling ...
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Telephone Construction, Installation, Wiring, Operation and Maintenance: A ... Harry Cooke Cushing Попередній перегляд недоступний - 2017 |
Telephone Construction, Installation, Wiring, Operation and Maintenance: A ... Harry Cooke Cushing Попередній перегляд недоступний - 2018 |
Telephone Construction, Installation, Wiring, Operation and Maintenance: A ... Harry Cooke Cushing Попередній перегляд недоступний - 2018 |
Загальні терміни та фрази
50 cents alternating current ampere armature binding posts bolted Bridging Connection Bridging Station cable called carbon blocks clearing-out drop complete metallic circuit conductors Construction copper wire cord core cross-arms desk set diaphragm distributing board Dry Cell electrical electromotive force engines exchange switchboard extension bell fastened feet fuse gage ground heat coil hole hook switch inch induction coil insulated iron wire jack latter Leclanché cell lightning arrester line circuit line drop line wires listening key machine magneto bell mechanical mounted ohms operator party party-line systems placed plate plug pole porous cup position PRACTICAL BOOKS primary winding Protective Apparatus receiver ring the bell ringer ringing key rubber series station shown in Fig shows shunt side signaling sleeve soldered solid-back spring steel switch arm talking circuit talking current tele Telephone Circuit tested threads tion transmitter usually vibrations volts wall set wound zinc