788,389. Agricultural implements. STEKETEE, C. J. Nov. 27, 1956 [Dec. 2, 1955], No. 36298/56. Class 6(1). A machine for thinning plants comprises holders 4 in each of which is rotatably journalled a longitudinally extending shaft 6 which is oscillated by means of a lever 13 and coupling rod 14, a tool 15 being pivotally mounted on each shaft 6. As shown, the holders 4 are fixed to brackets 2 on a frame 1. A supporting wheel may be mounted on each holder 4 and by removing a bolt in a hole 11SP1/SP the holder may be freely pivotable. By replacing the tool 15 by one having bent ends 18 the machine may be used as a harrow. In a modification in which each holder is provided with a supporting wheel and is pivoted on the brackets 2, each tool comprises an arm adjustably mounted on the shaft 6 and provided with a blade or one or more pins.
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机译：788,389。农具。 C. J. STEKETEE，1956年11月27日[12月[1955年2月2日]，第36298/56号。 6（1）类。一种用于植物间苗的机器，其包括保持器4，在每个保持器4中可旋转地轴接纵向延伸的轴6，该轴通过杠杆13和联接杆14而摆动，工具15可枢转地安装在每个轴6上。图4中所示的固定装置固定在框架1上的支架2上。支撑轮可以安装在每个支架4上，并且通过移除孔11 1 中的螺栓，支架可以自由枢转。通过用具有弯曲端部18的工具代替工具15，该机器可以用作耙。在其中每个保持器设置有支撑轮并且在支架2上枢转的变型中，每个工具包括臂，该臂可调节地安装在轴6上并且设置有刀片或一个或多个销。
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