| 摘要 |
Arcuately curved cultivator shanks carrying ground working tools often become partially straightened or the attaching portion becomes bent due to the ground working tool engaging obstructions such as a root, rock or the like. Due to the resiliency thereof, they are difficult to re-shape to the original contours or specifications. The present device includes firstly, a vertical standard having a cross pin at the upper end thereof under which the hooked attaching end may be engaged. The distal end, which is apertured to receive the ground working tool, is engaged by a jack underneath the standard and a sliding member engages within the standard and is engaged by the distal end of the shank so that when the jack is extended, the arcuately curved portion is re-shaped to the original contours. Secondly, the attaching portion of the shank which may have become distorted or bent due to the shaping of the arcuately curved portion, may be engaged between a pair of spaced apart horizontally situated cross pins between a pair of horizontal members. The jack is then engaged with the attaching portion between the cross pins and is extended thereby straightening the attaching portion.
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