Category:Scans from 'Forty Years of Electrical Progress'

Pages in category "Scans from 'Forty Years of Electrical Progress'"

This category contains only the following page.

Media in category "Scans from 'Forty Years of Electrical Progress'"

The following 34 files are in this category, out of 34 total.

• 
  "Link" switch, 1891 (Forty Years of Electrical Progress).jpg 371 × 373; 18 KB
  
• 
  Angold arc lamp, 1898 (Forty Years of Electrical Progress).jpg 856 × 985; 83 KB
  
• 
  Arc lamp carbons (Forty Years of Electrical Progress).jpg 792 × 245; 22 KB
  
• 
  Battery regulating switch, claw type, 1888 (Forty Years of Electrical Progress).jpg 860 × 539; 87 KB
  
• 
  Branch switch, with ceramic screw-threaded cover, 1888 (Forty Years of Electrical Progress).jpg 475 × 285; 24 KB
  
• 
  Ceiling rose, hardwood, 1889 (Forty Years of Electrical Progress).jpg 284 × 379; 24 KB
  
• 
  Ceiling rose, with fuse, 1890 (Forty Years of Electrical Progress).jpg 409 × 529; 35 KB
  
• 
  Cover (Forty Years of Electrical Progress).jpg 1,125 × 1,636; 345 KB
  
• 
  Cut glass pendant light fitting (Forty Years of Electrical Progress).jpg 317 × 489; 18 KB
  
• 
  Dioptric glass pendant light fitting (Forty Years of Electrical Progress).jpg 377 × 634; 46 KB
  
• 
  Display board for wooden electrical cable casings (Forty Years of Electrical Progress).jpg 378 × 1,294; 86 KB
  
• 
  Dr Aron's electricity meter (Forty Years of Electrical Progress).jpg 708 × 1,010; 140 KB
  
• 
  Early bayonet cap lampholder, china and brass (Forty Years of Electrical Progress).jpg 332 × 606; 27 KB
  
• 
  Early boxwood lampholder, loop connectors (Forty Years of Electrical Progress).jpg 269 × 500; 12 KB
  
• 
  Early lampholder with loop connectors, china body, 1888 (Forty Years of Electrical Progress).jpg 289 × 495; 14 KB
  
• 
  Ebonite switch, 1888 (Forty Years of Electrical Progress).jpg 259 × 254; 11 KB
  
• 
  Floral ceiling light (Forty Years of Electrical Progress).jpg 465 × 398; 36 KB
  
• 
  Fusible cut-out, 1888 (Forty Years of Electrical Progress).jpg 330 × 227; 13 KB
  
• 
  Lyons liquid resistance equipment, 1888 (Forty Years of Electrical Progress).jpg 905 × 597; 86 KB
  
• 
  Main switchboard, c. 1888 (Forty Years of Electrical Progress).jpg 557 × 778; 88 KB
  
• 
  Multiple contact switch, 1888 (Forty Years of Electrical Progress).jpg 491 × 424; 38 KB
  
• 
  Nernst lamp, 1900 (Forty Years of Electrical Progress).jpg 356 × 576; 22 KB
  
• 
  Osmium lamp, 1905 (Forty Years of Electrical Progress).jpg 237 × 382; 9 KB
  
• 
  Osram lamp, 1910, high candle power type (Forty Years of Electrical Progress).jpg 569 × 716; 36 KB
  
• 
  Osram lamp, 1910, pear shaped (Forty Years of Electrical Progress).jpg 264 × 495; 16 KB
  
• 
  Peel-Hawkins dynamo, 1898 (Forty Years of Electrical Progress).jpg 668 × 494; 53 KB
  
• 
  Preece-Willmot switch, 1890 (Forty Years of Electrical Progress).jpg 382 × 383; 21 KB
  
• 
  Robertson lamp, bottom loop (Forty Years of Electrical Progress).jpg 260 × 340; 12 KB
  
• 
  Robertson lamp, brass cap (Forty Years of Electrical Progress).jpg 260 × 340; 14 KB
  
• 
  Robertson lamp, Edison screw base (Forty Years of Electrical Progress).jpg 260 × 340; 12 KB
  
• 
  Single pole quick-break switch, wooden base (Forty Years of Electrical Progress).jpg 484 × 481; 38 KB
  
• 
  Sir Hugo Hirst, Bart (Forty Years of Electrical Progress).jpg 700 × 991; 103 KB
  
• 
  Slate base switch, 1888 (Forty Years of Electrical Progress).jpg 306 × 331; 18 KB
  
• 
  Sunbeam lamp, 1890 (Forty Years of Electrical Progress).jpg 422 × 339; 46 KB