Telephone Construction, Installation, Wiring, Operation and MaintenanceN.W. Henley Publishing Company, 1914 - 223 стор. |
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Сторінка 175
... plug in the line jack , she de- presses the regular ringing key into its dotted posi- tion , thereby allowing the ringing current to flow through the signaling circuit . When the special selecting key is in its upright or normal ...
... plug in the line jack , she de- presses the regular ringing key into its dotted posi- tion , thereby allowing the ringing current to flow through the signaling circuit . When the special selecting key is in its upright or normal ...
Сторінка 185
... plug tests whereby grounds , short circuits , crossed wires and open lines may be determined . A testing wire is ... Plugs apparatus by No. 22 B. & S. gage copper wires , tinned and formed into cables of 26 pairs each . The wires are ...
... plug tests whereby grounds , short circuits , crossed wires and open lines may be determined . A testing wire is ... Plugs apparatus by No. 22 B. & S. gage copper wires , tinned and formed into cables of 26 pairs each . The wires are ...
Сторінка 187
... plugs ss , which , being the terminals of the operator's 10 circuits , are therefore 20 in number and which when inserted in the jacks connect together the line circuits wired to them ; the ringing and listening keys k k , 1 for each of ...
... plugs ss , which , being the terminals of the operator's 10 circuits , are therefore 20 in number and which when inserted in the jacks connect together the line circuits wired to them ; the ringing and listening keys k k , 1 for each of ...
Сторінка 188
... The Operator's Circuit on the switchboard is shown in Fig . 116. The two plugs m n and r v have their tips m and r electrically connected to the re- spective springs s and i of the ringing keys R and R ' , and their sleev s n and v 188.
... The Operator's Circuit on the switchboard is shown in Fig . 116. The two plugs m n and r v have their tips m and r electrically connected to the re- spective springs s and i of the ringing keys R and R ' , and their sleev s n and v 188.
Сторінка 190
... plug , into the calling party's jack S , Fig . 115. As all the jacks and line drops are numbered , those connected ... plug . When inserted and pushed in , the tip m of the plug makes contact with the curved part of the spring r , and ...
... plug , into the calling party's jack S , Fig . 115. As all the jacks and line drops are numbered , those connected ... plug . When inserted and pushed in , the tip m of the plug makes contact with the curved part of the spring r , and ...
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Telephone Construction: Installation, Wiring, Operation and Maintenance ... William Hiram Radcliffe Попередній перегляд недоступний - 2015 |
Telephone Construction: Installation, Wiring, Operation and Maintenance ... William Hiram Radcliffe Попередній перегляд недоступний - 2017 |
Загальні терміни та фрази
alternating current ampere armature automatic binding posts bolt brace called cents clamp complete metallic circuit Concrete conductors conduit connected construction containing copper copper wire cord cross-arms desk set diaphragm distributing board Dry cells electrical electromotive force exchange switchboard extension bell fastened feet fully illustrated gage gas engines gear ground heat coil HISCOX hole hook switch inches induction coil installation insulated iron wire jack lamp Leclanché cell lightning arrester line circuit line drop line wires machine magnet magneto bell mechanical method mounted O'CONOR SLOANE ohms operator operator's pair party party-line systems pipe placed plate plug pole position practical primary winding Protective Apparatus receiver resistance ringing key rope rubber screw sheath shown in Fig shows shunt side signal sleeve soldered spring steam steel storage battery switch arm tele Telephone Circuit telephone set terminals Testing tion transmitter usually wall set zinc
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Сторінка 6 - A NEW SKETCHING PAPER. A new specially ruled paper to enable you to make sketches or drawings in isometric perspective without any figuring or fussing. It is being used for shop details as well as for assembly drawings, as it makes one sketch do the work of three, and no workman can help seeing just what is wanted. Pads of 40 sheets, 6x9 inches, 25 cents.
Сторінка 9 - WIRING A HOUSE. By HERBERT PRATT. Shows a house already built; tells just how to start about wiring it; where to begin; what wire to use; how to run it according to Insurance Rules; in fact, just the information you need. Directions apply equally to a shop. Fourth edition . . 25 cents FACTORY MANAGEMENT.
Сторінка 13 - LOCOMOTIVE BREAKDOWNS AND THEIR REMEDIES. By GEO. L. FOWLER. Revised by WM. W. WOOD, Air-Brake Instructor. Just issued. Revised pocket edition. It is out of the question to try and tell you about every subject that is covered in this pocket edition of Locomotive Breakdowns. Just imagine all the common troubles that an engineer may expect to happen some time, and then add all of the unexpected ones, troubles that could occur, but that you...
Сторінка 11 - The laying out of cams is a serious problem unless you know how to go at it right. This puts you on the right road for practically any kind of cam you are likely to run up against.
Сторінка 4 - It has been the aim of the authors, in preparing this book, to produce one which shall be of use and benefit to those who are associated with, or interested in, the modern developments of the industry. Contents: Chap.
Сторінка 12 - Triple Valve for Freight Service; and the Cross-Compound Pump. The operation of all parts of the apparatus is explained in detail, and a practical way of finding their peculiarities and defects, with a proper remedy, is given. It contains 2,000 questions with their answers, which will enable any railroad man to pass any examination on the subject of Air Brakes. Endorsed and used by air-brake instructors and examiners on nearly every railroad in the United States.
Сторінка 7 - COMMUTATOR CONSTRUCTION. By WM. BAXTER, JR. The business end of any dynamo or motor of the direct current type is the commutator. This book goes into the designing, building, and maintenance of commutators, shows how to locate troubles and how to remedy them; everyone who fusses with dynamos needs this.
Сторінка 15 - This is a collection of 1,890 engravings of different mechanical motions and appliances, accompanied by appropriate text, making it a book of great value to the inventor, the draftsman, and to all readers with mechanical tastes. The book is divided into eighteen sections or chapters, in which the subject-matter is classified under the following heads: Mechanical Powers; Transmission of Power; Measurement of Power; Steam Power; Air Power Appliances; Electric Power and Construction; Navigation and...
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