Varley's lightning protector for telegraph lines, 1861.

Varley's lightning protector for telegraph lines, 1861.
2 9 c m
40cm
actual image size: 32cm x 21cm

Description

Pole-suspended bare-wire telegraph lines are extremely vulnerable to lightning, which can damage the very delicate electrical instruments and possibly injure the operators. Lightning arresters provide a means of diverting lightning strokes to earth, and have been produced in many different designs since the beginnings of electric telegraphy. This one was designed by pioneering electrical engineer Cromwell Varley.

Image Details

Image Ref.
 
10459325

© Science Museum / Science & Society Picture Library

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