Henley's magneto electric double needle telegraph, 1848-1852

Made:
1848-1852 in England

Buy this image as a print 

Buy

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

License

Buy this image as a print 

Buy

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

License

Buy this image as a print 

Buy

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

License

Buy this image as a print 

Buy

License 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

Science Museum Group Collection
© The Board of Trustees of the Science Museum

Henley's magneto electric double needle telegraph, made by the Magnetic Telegraph Company, England, 1848-1852.

This telegraph system, which did not require a battery for operation, was patented in 1848 by W T Henley and T Forster. Instead of a battery, the instrument was powered by magnets and electro-magnetic currents, using pedal keys. The needles for indicating letters could only move in one direction, but the code was the same modified Morse code used by other telegraph systems.

Details

Category:
Telecommunications
Object Number:
1876-1285
Materials:
copper (alloy), ivory, mahogany (wood), steel (metal) and textile
type:
telegraph
taxonomy:
  • component - object
credit:
Donated by HM Postmaster General