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LicenseThis image is released under a CC BY-NC-SA 4.0
Licence
Buy this image as a print
BuyLicense this image for commercial use at Science and Society Picture Library
LicenseThis image is released under a CC BY-NC-SA 4.0
Licence
Buy this image as a print
BuyLicense this image for commercial use at Science and Society Picture Library
License
Science Museum Group Collection
© The Board of Trustees of the Science Museum
Science Museum Group Collection
© The Board of Trustees of the Science Museum
Science Museum Group Collection
© The Board of Trustees of the Science Museum
'Thunder pump' magneto-electric device, made by W T Henley's Telegraph Works Company Limited, London, England, 1856.
This design of magneto-electric machine was used by the Electric Telegraph Company. Pumping the handle created a strong alternating current, which rang a call bell at the far end.
Details
- Category:
- Telecommunications
- Object Number:
- 1876-1375
- Materials:
- wood (unidentified), brass (copper, zinc alloy), steel (metal) and silk
- Measurements:
-
overall: 195 mm x 460 mm x 250 mm, 12.52 kg
- type:
- magneto
- credit:
- From Reid Brothers
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