Electric Illumination, Bind 2James Dredge Cambridge University Press, 18. dec. 2014 - 898 sider Two years after Thomas Edison patented his electric light bulb, the 1881 International Exposition of Electricity in Paris, featuring many spectacular lighting displays, showcased the potential of this technology for commercial and domestic use. The accompanying International Congress of Electricians also agreed on international standards for units of electrical resistance, potential and current. In its wake, James Dredge (1840-1906), editor of the British periodical Engineering, compiled this illustrated overview of electrical technology and its application to lighting. First published in two volumes between 1882 and 1885, and using material that had previously appeared in Engineering, as well as new articles by various contributors, this substantial work reflects the complexities and possibilities of a propitious technological development. Among other topics, Volume 2 covers electrical measurement, standard textbooks, photometry, and recent developments in lamps and dynamos. The appendices give abstracts of British electrical patents from 1873 to 1882. |
Indhold
65 | 10 |
Figs 23 | 21 |
to | 29 |
to | 39 |
25 | 62 |
43 | 69 |
46 | 78 |
ELECTRICAL MEASUREMENT General Principles Ohms Law Resistance Unit | 95 |
Fig 192 193 Farcots Dynamometer 218 | 218 |
Parsons Dynamometer | 222 |
to 197 Hefner Altenecks Dynamometer 223 | 223 |
to 200 Application of the Hefner Alteneck Dynamometer 225 | 225 |
Kings Dynamometer | 227 |
Figs 205206 Registering Apparatus of the Royal Agricultural Societys Dynamometer | 228 |
Morins Dynamometer | 229 |
to 210 Bourrys Dynamometer | 230 |
Bouguers Photometer | 106 |
Massons Photometer | 114 |
Wheatstones Photometer | 120 |
Duboscqs Photometer | 126 |
Ritchies Photometer Leslies Modified | 132 |
Siemenss Artificial | 139 |
Stevensons Absorption Photometer | 149 |
47 | 160 |
PHOTOMETRY General Introduction Fundamental Laws Law of the Squares of Distances | 173 |
THE EYE AS A PHOTOMETRIC INSTRUMENT | 174 |
Horizontal Section of the Eye | 176 |
Figs 146 147 Diagram Illustrating Refraction of Ligh 178 | 178 |
Figs 148 149 5 Action of Lenses in Causing Refraction | 179 |
The Lenses of the Eye | 180 |
Distribution of Light over a Hollow Sphere | 181 |
Optical Adjustment for Distance | 183 |
The Rods and Cones of the Eye | 184 |
Diagram of Heat Light and Chemical Rays | 187 |
THE EYE AS A PHOTOMETRIC INSTRUMENT The Distribution of Light | 190 |
DYNAMOMETERs | 193 |
Kretzs Dynamometer | 194 |
Figs 156 157 Easton and Andersons Dynamometer | 195 |
Emerys Dynamometer | 196 |
Brauers Dynamometer | 197 |
Imrays Dynamometer | 198 |
Figs 164 165 Carpentiers Dynamometer | 199 |
Raffards Dynamometric Balance | 200 |
Thiabauds Dynamometer | 201 |
Raffards Dynamometer | 202 |
to 175 Froudes Inertia Brake | 203 |
Browns Dynamometer | 205 |
Raffards Dynamometer | 206 |
Kings Dynamometer | 207 |
Smiths Dynamometer | 209 |
Figs 182 183 Bourdons Dynamometer | 210 |
to 186 Hirns Torsion Dynamometer | 211 |
Figs 187 188 Froudes Belt Dynamometer | 213 |
to 191 Tathams Dynamometer 215 | 215 |
Megys Dynamometer | 231 |
Figs 212 213 Ruddicks Dynamometer | 233 |
to 220 Taurines Dynamometer | 235 |
Neers Dynamometer | 236 |
Figs 226227 Darwins Dynamometer | 237 |
to 232 Matters Dynamometer | 238 |
Figs 233234 Emersons Dynamometer | 239 |
to 237 Smiths Ergometer | 240 |
DYNAMOMETERS Introductory Remarks The Prony Brake Kretzs Brake Easton | 241 |
to | 248 |
to | 255 |
Fig | 261 |
Figs 267268 | 267 |
Fig 279 | 279 |
to | 288 |
Fig | 294 |
to | 313 |
Diagram of Joint Resistance of Conductors | 323 |
to | 326 |
Figs 332333 | 332 |
Fig | 338 |
RECENT DYNAMO MACHINES AND LAMPS THE WESTON SYSTEM OF ELECTRIC | 439 |
443 | |
448 | |
103 | 450 |
INDEX 441 to | 455 |
Abstracts of Electrical Patents from January 1 1873 to June 30 1882 i to ceclxv | xiii |
109 | cvii |
Hochhausens Device for Setting Carbons into | cxlii |
Resistance | clxxxv |
The Brush Companys Regulator for Theatres | ccxxxii |
3 | ccliv |
Plan of Resistance | cccxvi |
ccclxxii | |
ccclxxvi | |
ccclxxxiii | |
28 | cdiii |
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adjusted alternate current ampères angle apparatus arc lamps armature arranged attached axis battery belt bobbins brake brushes cable candle carbon-holder Carcel carries centimetre centre coils commutator condenser conductor connected consists constant copper core cylinder deflection diameter disc distance dynamo dynamometer electric light electro-magnet electrodes electromotive force employed equal field magnets filament fixed frame friction galvanometer glass grammes gutta-percha heat horizontal horse-power illumination incandescence lamps insulated intensity length lever London luminous machine means measured metal method millimetres motor mounted movable needle obtained ohms passes photometer pinion placed plate platinum poles position pulley ratio rays regulating resistance retina revolutions per minute revolving ring rollers rotation scale screen screw selenium shaft shown in Fig shunt side slide soft iron solenoid speed spindle spring standard suitable surface tangent galvanometer terminal transmitted tube upper carbon vertical volts weight wheel wire wound