Mech. [COUNTER- 8.] An intermediate shaft driven from a main shaft for giving motion to a particular machine.
1864. in Webster.
1870. R. M. Ferguson, Electr., 264. Both armatures are driven … by belts from the same countershaft.
1880. Spencer, in Proc. Inst. Mech. Eng., 515. Nearly all mules are now driven by counter-shafts.
So Countershafting.
1885. Law Rep. 15 Q. Bench Div. 359. The mode of fixing main and counter shafting.
