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. |
З цієї книги
Результати 1-5 із 8
Сторінка 14
... passes down the spring a and through the platinum ball and carbon button to the spring s , thence through the spring k to the binding screw u and out . The vibrations of the diaphragm vary the pressure between the carbon button and the ...
... passes down the spring a and through the platinum ball and carbon button to the spring s , thence through the spring k to the binding screw u and out . The vibrations of the diaphragm vary the pressure between the carbon button and the ...
Сторінка 22
... passes through the porous cup and moistens its contents . The bind- ing posts or screws on c and z form the terminals of the cell . The resistance of this cell is usually less than 1 ohm , and the electromotive force is about 1.5 volts ...
... passes through the porous cup and moistens its contents . The bind- ing posts or screws on c and z form the terminals of the cell . The resistance of this cell is usually less than 1 ohm , and the electromotive force is about 1.5 volts ...
Сторінка 31
... passes through the magnet coils , which are wound in opposite directions around the cores , this current when flowing in one direction will strengthen one pole of the electro- magnet and weaken or reverse its other pole , un- L A h N n ...
... passes through the magnet coils , which are wound in opposite directions around the cores , this current when flowing in one direction will strengthen one pole of the electro- magnet and weaken or reverse its other pole , un- L A h N n ...
Сторінка 38
... 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 38.
... 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 38.
Сторінка 96
... poles are in position . The line- man carries with him up the pole a pulley and a coil of rope . The pulley he fastens to the top of the pole and then passes the rope through it , allow- ing both ends to reach the ground . His assistant 96.
... poles are in position . The line- man carries with him up the pole a pulley and a coil of rope . The pulley he fastens to the top of the pole and then passes the rope through it , allow- ing both ends to reach the ground . His assistant 96.
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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