KLG sparking plug, type Ks1, 1935.
3 4 c m
40cm
actual image size: 32cm x 26cm

KLG sparking plug, type Ks1, 1935.

© Science Museum / Science & Society Picture Library

Description

Sparking plugs provide a spark of high-voltage electricity to ignite the mixture of fuel and air in the cylinders of a petrol engine. They are screwed into the cylinder head with a spark gap provided between an insulated electrode and one or more earthed points. This example is a mica-insulated, two-piece, detachable plug suitable for sports car engines where a very high heat resistance is necesary.
 

Image Ref.

10221374
 

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