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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Результати 1-5 із 28
Сторінка 33
... cross - bar FF is mounted over the poles , and into this is threaded the screw B which projects through a hole in the permanent magnet A and has a shoulder bearing on the plate DD . Turning the screw B to the right or left moves the ...
... cross - bar FF is mounted over the poles , and into this is threaded the screw B which projects through a hole in the permanent magnet A and has a shoulder bearing on the plate DD . Turning the screw B to the right or left moves the ...
Сторінка 45
... cross the space between the carbon blocks and , therefore , are not diverted from their course by the arrester . The Magneto Bell in a series telephone set offers the only appreciable resistance through a station . when the talking ...
... cross the space between the carbon blocks and , therefore , are not diverted from their course by the arrester . The Magneto Bell in a series telephone set offers the only appreciable resistance through a station . when the talking ...
Сторінка 48
... cross pipes upon which moisture is liable to form , the wires should be led over rather than under them . Porcelain insulators , No. 5 , such as are shown in Fig . 36 , should preferably be used to support the wires , although the ...
... cross pipes upon which moisture is liable to form , the wires should be led over rather than under them . Porcelain insulators , No. 5 , such as are shown in Fig . 36 , should preferably be used to support the wires , although the ...
Сторінка 85
... cross - arms or brackets near its top , and each cross- arm usually carries from 6 to 10 glass insulators supported on wooden pins . The line wires are tied to the insulators and run parallel with each other from pole to pole . When the ...
... cross - arms or brackets near its top , and each cross- arm usually carries from 6 to 10 glass insulators supported on wooden pins . The line wires are tied to the insulators and run parallel with each other from pole to pole . When the ...
Сторінка 86
... cross - arms can carry , a 50 - pair cable is suspended between the poles , and the cross - arms are used for further growth . The Location of the Poles according to the right- of - way agreements should at first be indicated by stakes ...
... cross - arms can carry , a 50 - pair cable is suspended between the poles , and the cross - arms are used for further growth . The Location of the Poles according to the right- of - way agreements should at first be indicated by stakes ...
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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