The History and Progress of the Electric Telegraph: With Descriptions of Some of the Apparatus

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D. Van Nostrand, 1869 - 280 Seiten
 

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Inhalt

Pithball Electroscopes e e e
10
Reussers Telégraph e
11
Cavallos Telegraph e e
12
Ronalds Telegraph e e e ë e e e
14
Discoveries of Voltaic Electricity
15
Voltas Contact TheoryChemical Theory e
18
Voltas Pile e e
19
Properties of the Woltaic Pile 23 Discovery of the Decomposition of Water by the Pile
20
Schweiggers Telegraph e g e e
22
Coxes Telegraph e e e e 6 º
23
W TELEGRAPHs Now IN
54
28
69
De Sautys Submarine Key e e
71
Varleys Switch e e e
72
Lacoines Key
77
Relays 66 American or Simple Relays e e
79
Polarised or Induction Relays
80
Morse Recorders e
84
Directworking Recorders
86
33 Beaudoin and Digneys
88
Siemens and Halskes e
91
38
93
Vinays Inkrecorders e e
94
Sortais Selfstarting Apparatus e e e
96
Siemens 93 92 e e e º
98
Translation or Retransmission of Morse Signals e
99
47
100
Varleys Translating Apparatus e
102
Polarised Inkrecorder as Submarine Key e
106
51
109
Complete Submarine Board e e e
110
Morse Apparatus worked by closed Circuit
113
Method of Translation between a Line with closed and one with open Circuit
115
Method of Translation between two Lines with closed Circuit
117
Methods of Telegraphing in opposite Directions at the same Time in a Single Wire
119
99 by Chemical Means e e
122
Plan of Frischen and Siemens
123
Method of transmitting two Messages along a single Line in the same Direction at the same Time
125
Stoehrers Doublestyle Apparatus e
129
2? Alphabetical Code e
132
Morse Telegraph worked by Induction Currents
133
Magnetoinduction Key e e
137
Intermediate Station Commutators e e
138
Nottebohms Commutator e
139
Siemens 25
141
Borggreves 25
143
Commutator for Stations with three or four Lines 14 5
145
Battery Commutators
147
c Automatic Telegraphs 100 Morse and Bains Systems of Automatic Transmission
148
Wheatstones Systems of Automatic Transmission
149
Siemens and Halskes Systems of Automatic Transmission
152
d Dial Telegraphs 103 Use of Dial Telegraphs
156
Houses Printing Telegraph e e e
190
Desgoffes Typeprinter e e e º
192
Jolys 22 e e e e e
194
Morénes 22 e o e e e
196
DArlincourts e e e e e
198
f Electrochemical and Copying Telegraphs 119 Bains Chemical Telegraph e e
199
PougetMaisonneuves Telegraph e e 20 1
202
Bakewells Copying Telegraph e
203
Casellis Chemical Copying Telegraph e
204
Cros 22 32 e e
206
Bonellis Chemical Type Telegraph e e
208
Lenoirs Mechanical Copying Telegraph e
212
WI Over HEAD LINEs 127 Early Lines e o e
215
Iron and Stone Posts e e o e
218
Menans Iron Post e e e e e e
220
Clarks 22 e e e e e o
221
Spanish 99 e c o e e e
222
French 29 e e e
223
Austrian War Insulator e e e e
224
Chauvins 35 e
225
Brookss 25 e e e
226
The Wire e
227
Joints in e e
228
Erection of Overland Lines
231
Phenomenon of Charge in Wires
233
The Earthplate
234
SUBMARINE TELEGRAPH LINEs 149 DoverCalais Cable e
235
First Atlantic e e e
237
MaltaAlexandria Cable e
239
Persian Gulf 22 e o
240
CarthagenaOran e e
241
Protection of Outer Covering
242
and 1866 Atlantic Cables e
243
Submersion of Cables
245
Taking Bearings e
247
Bottom of the Ocean
248
Cable whilst sinkingSlack e
250
UNDERGROUND TELEGRAPHs 162 Underground System preferred
253
Belgian Tubes
255
ATMosPHERIC ELECTRICITY 166 Franklins Experiments
258
Theory of Thunderstorms e
259
Steinheils Lightning Discharger e
263
Meissners Plate 32
265
Siemens 22
266
Bréguets Plate Discharger
267
Fardleys 22
268
Siemens Point 23
269
German 25 22
271
Kerckhoffs 27
272
Automatic Guards of Tesse and Picco
273
Siemens Submarine Key e e e e
275

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Seite 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.
Seite 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...

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