The History and Progress of the Electric Telegraph: With Descriptions of Some of the ApparatusD. Van Nostrand, 1869 - 280 páginas |
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Página xi
... Plate 77 65. Relays . 66. American , or Simple Relays 79 79 67. Polarised , or Induction Relays 80 68. Morse Recorders 69. Embossing Instrument with movable Magnet 70. Direct - working Recorders 83 84 86 71 . " " 99 " " Beaudoin and ...
... Plate 77 65. Relays . 66. American , or Simple Relays 79 79 67. Polarised , or Induction Relays 80 68. Morse Recorders 69. Embossing Instrument with movable Magnet 70. Direct - working Recorders 83 84 86 71 . " " 99 " " Beaudoin and ...
Página xiii
... plate VII . SUBMARINE TELEGRAPH LINES . $ 149 . Dover - Calais Cable 150. First Atlantic 99 151. Red Sea 22 152 ... Plate 258 259 • 263 265 99 170. Siemens ' " " " " . 266 PAGE § 171. Bréguet's Plate Discharger 172. Fardley's ...
... plate VII . SUBMARINE TELEGRAPH LINES . $ 149 . Dover - Calais Cable 150. First Atlantic 99 151. Red Sea 22 152 ... Plate 258 259 • 263 265 99 170. Siemens ' " " " " . 266 PAGE § 171. Bréguet's Plate Discharger 172. Fardley's ...
Página xiv
With Descriptions of Some of the Apparatus Robert Sabine. PAGE § 171. Bréguet's Plate Discharger 172. Fardley's " " 173. Nottebohm's Plate 174. Siemens ' Point 175. Bréguet's Saw - teeth 176. German 177. Kerckhoff's وو دو " " وو 99 و ...
With Descriptions of Some of the Apparatus Robert Sabine. PAGE § 171. Bréguet's Plate Discharger 172. Fardley's " " 173. Nottebohm's Plate 174. Siemens ' Point 175. Bréguet's Saw - teeth 176. German 177. Kerckhoff's وو دو " " وو 99 و ...
Página 11
... plates of glass . Such letters are shown in Fig . 3. An electric discharge from the interior coating of a Fig . 3 . ― con- Leyden jar being sent , for instance , through the double strips of tinfoil , from the end marked + to the end ...
... plates of glass . Such letters are shown in Fig . 3. An electric discharge from the interior coating of a Fig . 3 . ― con- Leyden jar being sent , for instance , through the double strips of tinfoil , from the end marked + to the end ...
Página 14
... plate except the one seen through the orifice , F the gas alarm , and E the tube convey- ing the wires from the station . 6 D 3 2 CB DICTIONARY 1 10 AY PREPARE READY REPTBENTU 8 7 S ANNUL WORD REPYWORD FINISHED R Р 0 N Fig . 5 . Fig . 6 ...
... plate except the one seen through the orifice , F the gas alarm , and E the tube convey- ing the wires from the station . 6 D 3 2 CB DICTIONARY 1 10 AY PREPARE READY REPTBENTU 8 7 S ANNUL WORD REPYWORD FINISHED R Р 0 N Fig . 5 . Fig . 6 ...
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Términos y frases comunes
alphabet alternate currents armature arrangement atmospheric electricity attracted axis back contact beam bottom cable carried clockwork coils commutator connected consists construction contact-pins copper core corresponding current passes currents arriving cylinder deflected dial direction disc drum electricity electro-magnet employés galvanic galvanometer galvanoscope gutta percha hemp holes horizontal inductor inserted insulated intermediate station interrupted iron wires knot length letter lever Leyden jar lifted line battery line wire line-wire local battery means Messrs metal method mètre Morse apparatus motion needle negative current opposite paper strip permanent magnet plate pointer poles positive current posts pressed printing printing-press ratchet-wheel ratus receiving station relay resistance roller rotating round scape-wheel screw sending station shaft shown in Fig side Siemens signals soft-iron spiral spring style surface switch synchronism teeth terminal tion tongue tooth transmitting tube turning type-wheel underneath upper vertical vulcanite wheel whilst wire zinc
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Página 5 - he felt himself struck in his arms, shoulders, and breast, so that he lost his breath, and was two days before he recovered from the effects of the blow and the terror.
Página 11 - ... and his wife, by remarking the corresponding motions of the ball, writes down the words they indicate: from which it appears he has formed an alphabet of motions. As the length of the wire makes no difference in the effect, a correspondence might be carried on at any distance...