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 19
Сторінка 15
... walls of the chamber mn are lined with varnished paper . The support of the carbon block consists of a disk - shaped piece of brass o , which , by means of the bolt y , is held firmly against the diaphragm b . The diaphragm is usu- ally ...
... walls of the chamber mn are lined with varnished paper . The support of the carbon block consists of a disk - shaped piece of brass o , which , by means of the bolt y , is held firmly against the diaphragm b . The diaphragm is usu- ally ...
Сторінка 35
... - ings , each shaped like those shown at a , etc. , Fig . 25. These punchings are threaded on the armature shaft c and bolted together as there indicated , after. FIG . 23. - Biased Ringer FIG . 31. - A Solid - back Wall Set. 35 S ...
... - ings , each shaped like those shown at a , etc. , Fig . 25. These punchings are threaded on the armature shaft c and bolted together as there indicated , after. FIG . 23. - Biased Ringer FIG . 31. - A Solid - back Wall Set. 35 S ...
Сторінка 41
... wall . The apparatus thus grouped together is known as a telephone set or station ; in the style of case shown it is designated as a solid- back wall set . The wooden box a contains the magneto generator , magneto bell , and switch arm ...
... wall . The apparatus thus grouped together is known as a telephone set or station ; in the style of case shown it is designated as a solid- back wall set . The wooden box a contains the magneto generator , magneto bell , and switch arm ...
Сторінка 42
... wall free from vibration ; it should be fastened to the wall with screws at each of the four cor- ners and at such a height that the mouth- piece of the transmit- ter when in its normal position will be about 5 feet above the floor ...
... wall free from vibration ; it should be fastened to the wall with screws at each of the four cor- ners and at such a height that the mouth- piece of the transmit- ter when in its normal position will be about 5 feet above the floor ...
Сторінка 49
... Walls able , the wires should be wrapped with two layers of insulating tape . Fishing for the wires between walls or under floors is done by boring 2 holes in the wall or floor along the desired path , pushing a flat spring wire from ...
... Walls able , the wires should be wrapped with two layers of insulating tape . Fishing for the wires between walls or under floors is done by boring 2 holes in the wall or floor along the desired path , pushing a flat spring wire from ...
Інші видання - Показати все
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