polarized 'guillotine' relay, 1862-1866

Made:
1862-1866 in England
maker:
William Stratford Andrews

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Creative Commons LicenseThis image is released under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 Licence

Creative Commons LicenseThis image is released under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 Licence

Buy this image as a print 

License this image for commercial use at Science and Society Picture Library

Creative Commons LicenseThis image is released under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 Licence

Buy this image as a print 

License this image for commercial use at Science and Society Picture Library

Creative Commons LicenseThis image is released under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 Licence

Buy this image as a print 

License this image for commercial use at Science and Society Picture Library

Creative Commons LicenseThis image is released under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 Licence

Buy this image as a print 

License this image for commercial use at Science and Society Picture Library

Creative Commons LicenseThis image is released under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 Licence

Buy this image as a print 

License this image for commercial use at Science and Society Picture Library

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Andrew's guillotine relay, 1864
Science Museum Group Collection
© The Board of Trustees of the Science Museum

Andrew's guillotine relay, 1864
Science Museum Group Collection
© The Board of Trustees of the Science Museum

Andrew's guillotine relay, 1864
telecommunications; communications; electrical; electrical relay; relay; guillotine relay; guillotine; William Stratford Andrew; Stratford Andrew; Andrew; Andrew's guillotine relay; wood; metal; 1864; 1860's; 19th Century
telecommunications; communications; electrical; electrical relay; relay; guillotine relay; guillotine; William Stratford Andrew; Stratford Andrew; Andrew; Andrew's guillotine relay; wood; metal; 1864; 1860's; 19th Century

Polarized 'guillotine' relay, brought out by W Andrews, England, 1862-4. A relay is an electrically operated switch,
Science Museum Group Collection
© The Board of Trustees of the Science Museum

Polarized 'guillotine' relay, brought out by W Andrews, England, 1862-4. A relay is an electrically operated switch,
Science Museum Group Collection
© The Board of Trustees of the Science Museum

Polarized 'guillotine' relay, brought out by W Andrews, England, 1862-4. A relay is an electrically operated switch,
Science Museum Group Collection
© The Board of Trustees of the Science Museum

Polarized 'guillotine' relay, brought out by W Andrews, England, 1862-4. A relay is an electrically operated switch,
Science Museum Group Collection
© The Board of Trustees of the Science Museum

Polarized 'guillotine' relay, brought out by W Andrews, England, 1862-4. A relay is an electrically operated switch,
Science Museum Group Collection
© The Board of Trustees of the Science Museum

Polarized 'guillotine' relay, brought out by W Andrews, England, 1862-4. A relay is an electrically operated switch,
Science Museum Group Collection
© The Board of Trustees of the Science Museum

Polarized 'guillotine' relay, designed by W Andrews, England, 1862-1866.

A relay is an electrically operated switch, and allowed weak telegraph signals to be boosted by a local power source. Polarised electrical relays work by using an armature in between the poles of a permanent magnet in order to increase sensitivity. This one has an armature in the form of a semicircular magnet, placed horizontally and vibrating between two electromagnets. The current passes through both sets of coils, which are wound so that one attracts, and the other repels the armature.

On display

Science Museum: Information Age Gallery: Cable

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Details

Category:
Telecommunications
Object Number:
1876-1490
Materials:
brass (copper, zinc alloy), glass, wood (unidentified)
type:
electric switch
taxonomy:
  • component - object
credit:
From William Stratford Andrews
status:
Permanent collection

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