The History and Progress of the Electric Telegraph: With Descriptions of Some of the ApparatusD. Van Nostrand, 1869 - 280 páginas |
Dentro del libro
Resultados 1-5 de 43
Página x
... Single - needle Telegraph of Cooke and Wheatstone 50. Double - needle Telegraph of 51. Glossener's Needle Telegraph " " " " 52. Thomson's Galvanometer as Needle Telegraph 53. American Sounder ( b ) Morse Telegraphs . § 54. Morse ...
... Single - needle Telegraph of Cooke and Wheatstone 50. Double - needle Telegraph of 51. Glossener's Needle Telegraph " " " " 52. Thomson's Galvanometer as Needle Telegraph 53. American Sounder ( b ) Morse Telegraphs . § 54. Morse ...
Página xi
... Single Wire 86. Gintl's Method with Relays 119 • 119 87 . 99 99 by Chemical Means • 122 in the same Direction at the same Time 91 . 96. Siemens ' 97. Borggreve's 88. Plan of Frischen and Siemens . 89. Method of transmitting two Messages ...
... Single Wire 86. Gintl's Method with Relays 119 • 119 87 . 99 99 by Chemical Means • 122 in the same Direction at the same Time 91 . 96. Siemens ' 97. Borggreve's 88. Plan of Frischen and Siemens . 89. Method of transmitting two Messages ...
Página 4
... single fluid , and explained the phenomena by sup- posing that on exciting any substance till the equilibrium of the electricity was destroyed , an excess of it would be deposited on one side , and a deficiency , necessarily to the same ...
... single fluid , and explained the phenomena by sup- posing that on exciting any substance till the equilibrium of the electricity was destroyed , an excess of it would be deposited on one side , and a deficiency , necessarily to the same ...
Página 10
... single line - wire . A short account of this invention is given by Arthur Young , * in the following words : - " M. Lomond has made a remarkable discovery in elec- tricity . You write two or three words on a paper ; he takes it into a ...
... single line - wire . A short account of this invention is given by Arthur Young , * in the following words : - " M. Lomond has made a remarkable discovery in elec- tricity . You write two or three words on a paper ; he takes it into a ...
Página 11
... single wire , by means of continuations of sparks , said , by the Magasin de Voigt , to have been carried out , two years later , with no small success , by the Infanto * Magasin de Voigt , vol . ix . p . 183 . Antonio ; and Betancourt ...
... single wire , by means of continuations of sparks , said , by the Magasin de Voigt , to have been carried out , two years later , with no small success , by the Infanto * Magasin de Voigt , vol . ix . p . 183 . Antonio ; and Betancourt ...
Contenido
1 | |
2 | |
5 | |
6 | |
7 | |
8 | |
9 | |
10 | |
11 | |
12 | |
14 | |
15 | |
18 | |
19 | |
20 | |
23 | |
25 | |
31 | |
37 | |
43 | |
61 | |
91 | |
101 | |
106 | |
145 | |
147 | |
156 | |
162 | |
171 | |
172 | |
178 | |
202 | |
208 | |
222 | |
223 | |
231 | |
263 | |
273 | |
275 | |
278 | |
Otras ediciones - Ver todas
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
Pasajes populares
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...