Scrub′ber. 1.
(Gas-making.) An apparatus for ridding coal-gas of tarry matter and some remains of ammonia. It consists of a tall cylinder filled with bricks, paving-stones, or coke, and having an arrangement by which a stream of water can be admitted at top and removed at bottom.
2. (Leather.) A machine in which leather from the tan-pit is washed to cleanse it from adhering particles of bark, hair, gum, sediment of the liquor, and other filth which it has accumulated in the various handlings during the process of tanning. Scrubbing is preliminary to finishing.
Scrubbing-brush. |