A Hand-book of the Electromagnetic TelegraphD. Van Nostrand, 1878 - 98 páginas |
Dentro del libro
Resultados 1-5 de 21
Página 6
... Ground Wires .. The Key ... 33 35 35 The Relay . 38 The Sounder . 40 Main Line Sounders .... 41 The Box Relay ..... 43 Cut Outs ..... 44 The Switch Board .... 46 Other Switches .... 48 Lightning Arresters . Loops ..... 49 51 Arrangement ...
... Ground Wires .. The Key ... 33 35 35 The Relay . 38 The Sounder . 40 Main Line Sounders .... 41 The Box Relay ..... 43 Cut Outs ..... 44 The Switch Board .... 46 Other Switches .... 48 Lightning Arresters . Loops ..... 49 51 Arrangement ...
Página 7
... Grounds . Crosses . PART V. - CONSTRUCTION OF LINES . The Conductors .. The Insulators .. Fitting up Offices .. Ground Wire Connections . Private and Short Lines .... APPENDIX . 68 8 3 2 2 2 * * 66 70 70 72 74 74 76 77 80 81 82 ...
... Grounds . Crosses . PART V. - CONSTRUCTION OF LINES . The Conductors .. The Insulators .. Fitting up Offices .. Ground Wire Connections . Private and Short Lines .... APPENDIX . 68 8 3 2 2 2 * * 66 70 70 72 74 74 76 77 80 81 82 ...
Página 29
... wire , after passing through the mag- net , key and battery at each end of the line , is run to the ground at G , complet- ing the circuit through the earth . Be- sides being less expensive , this plan has the additional advantage that ...
... wire , after passing through the mag- net , key and battery at each end of the line , is run to the ground at G , complet- ing the circuit through the earth . Be- sides being less expensive , this plan has the additional advantage that ...
Página 35
... GROUND WIRES . At every intermediate station , a wire called a ground wire is run from the office to the ground . This wire may be connected with the line wire so as to di- vide the main circuit into two distinct and independent ...
... GROUND WIRES . At every intermediate station , a wire called a ground wire is run from the office to the ground . This wire may be connected with the line wire so as to di- vide the main circuit into two distinct and independent ...
Página 47
... switch will show that two wires may be crossed by means of the connectors , or that any desired wire east may be connected with any other wire west of the office . b ' с The ground wire is attached to the binding post ,. 47.
... switch will show that two wires may be crossed by means of the connectors , or that any desired wire east may be connected with any other wire west of the office . b ' с The ground wire is attached to the binding post ,. 47.
Otras ediciones - Ver todas
A Hand-Book of the Electromagnetic Telegraph (Classic Reprint) A. E. Loring Sin vista previa disponible - 2018 |
A Hand-Book of the Electromagnetic Telegraph (Classic Reprint) A. E. Loring Sin vista previa disponible - 2015 |
Términos y frases comunes
23 Murray 25 cents 27 Warren Streets 50 cents adjusted armature binding posts break BRIDGES called carbon battery cells of battery closing the circuit cloth coils conducting power conductor Copies sent free cuit current of electricity cut-out Daniell Battery dots and dashes edition Electric Telegraph electro-magnet electro-motive force Engineer engravings escape Exercise free by mail Galvanic Galvanometer ground wire Grove battery hard rubber independent circuits instrument insulator lever lightning arrester line wire mail on receipt main circuit ments Messrs metals Morse Murray and 27 nected NOSTRAND'S PUBLICATIONS number of cells OHM'S LAW Ohms Paper covers pass plates platinum points PLYMPTON porous cup Prof put in circuit receipt of price relay magnet Repeater resistance rheostat set screw short lines shown in Fig sistance soft iron solution sounder station sulphate of copper sulphuric acid telegraph circuit telegraph line TELEPHONIC RESEARCHES Terminal Station tery tion tumbler wood-cuts Yale College zinc