carbon brush

noun

1. a small block of carbon used to convey current between the stationary and moving parts of an electric generator, motor, etc

Example Sentences

Remove the distributor block and determine which terminal of the block is in contact with the carbon brush of the distributor finger and connect with plug wire leading to No. 1 cylinder to this terminal.

From Project Gutenberg

When replacing the block, care must be exercised in pushing the carbon brush into the socket.

From Project Gutenberg