A Hand-book of the Electromagnetic TelegraphD. Van Nostrand, 1878 - 98 páginas |
Dentro del libro
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Página 32
... stations may be introduced in the circuit between the two terminal stations of the line , each station or office being provided with its key and magnet . The circuit may be opened by a key placed at one of these intermediate stations ...
... stations may be introduced in the circuit between the two terminal stations of the line , each station or office being provided with its key and magnet . The circuit may be opened by a key placed at one of these intermediate stations ...
Página 48
... station , or six at a terminal station , where the line wires merely pass through the instru- ments and thence to ground , instead of back through the switch board and on to the next station . These switches may be made for any desired ...
... station , or six at a terminal station , where the line wires merely pass through the instru- ments and thence to ground , instead of back through the switch board and on to the next station . These switches may be made for any desired ...
Página 52
... terminal office ; or runs back through the lightning- arrester and cut - out , out of the office and on toward the next station , if it is a way station . The connections of the local cir- cuit , which is entirely confined to the office ...
... terminal office ; or runs back through the lightning- arrester and cut - out , out of the office and on toward the next station , if it is a way station . The connections of the local cir- cuit , which is entirely confined to the office ...
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