| 摘要 |
A threshing machine in which pressure vibrator fingers are positioned beneath a conventional rotatable threshing cylinder for cooperation therewith to thresh grain. The fingers are mounted so that a rock coming in contact therewith will cause the fingers to move downwardly permitting the rock to fall to a lower conveyor without damage to the threshing machine. The fingers may be restored to threshing position by the actuation of a manually controlled lever from the operator's station.
|
