| 摘要 |
<p>735,563. Tractor hitch for agricultural implements. MASSEY-HARRIS-FERGUSON (SALES), Ltd., [formerly FERGUSON, Ltd., H.]. April 10, 1952 [April 14, 1951], No. 8746/51. Class 6 (1). A tractor power-lift for agricultural implements, such as a vineyard plough, has the spaced draught or lift links 1A bridged by a lateral drawbar 8, laterally spaced pin and hole or equivalent means being provided for coupling the drawbar and implement on vertical movement of the drawbar by using the lift links. The spaced pins 10, one of which is longer than the other, are fast with angle brackets 13 clamped at 16 to a square-section tool bar 17 to which the plough frame (not shown) is attached. This frame is supported by a superstructure including V-bars 14 to the apex of which the top link 2 of the tractor hitch is connected. To attach the implement frame, the drawbar is backed beneath the pins and lifted to engage first the longer pin 10 in one hole 9A. The other pin is then engaged by a turning and lifting movement of the drawbar, disconnection being prevented by cross-pins inserted in holes in the pins 10 from below. The lift links are provided with stabilizing links (not shown) to restrain side movement.</p> |
