countershaft

[ koun-ter-shaft, -shahft ]

/ ˈkaʊn tərˌʃæft, -ˌʃɑft /

Origin of countershaft

First recorded in 1860–65; counter- + shaft

coun·ter·shaft·ing, noun

Your dynamo has been mounted on a wooden foundation, and belted to the countershaft, by means of an endless belt.

Electricity for the farm |Frederick Irving Anderson
The crushers and conveyors were driven from a countershaft, in turn driven from the engine by an 18-in.

Transactions of the American Society of Civil Engineers, Vol. LXVIII, Sept. 1910 |B. H. M. Hewett
Each machine has a countershaft and pulleys complete with stands as shown.

Illustrated Catalogue of Cotton Machinery |Howard & Bullough American Machine Company, Ltd.
This five horsepower engine is installed in the milk room of the dairy, and is belted to a countershaft.

Electricity for the farm |Frederick Irving Anderson

The second driver is the second pulley on the countershaft, and the second driven is the one it drives or that on the machine.

Modern Machine-Shop Practice, Volumes I and II |Joshua Rose

countershaft

/ (ˈkaʊntəˌʃɑːft) /

an intermediate shaft that is driven by, but rotates in the opposite direction to, a main shaft, esp in a gear train