1871 1/1 I..have invented certain new and useful Improvements in Revolving-Disk Harrows and Disk Cultivators.
1894 Jan. 34/1 I have found one of the best tools that we have yet used to be the disc cultivator.
2003 B. Wolf & G. H. Snyder ix. 241 Sweeps added to heavy-duty disk cultivators rebuild the ridges at layby.