| 摘要 |
<p>1308187 Ploughs HUARD UCF SOC ANON DES ANCIENS ETS HUARD CARRIERE-GUYOT FONDEUR & UNION CHARRUES FRANCE 31 March 1970 [31 March 1969] 15223/70 Heading A1B A plough has a plurality of ploughing elements each comprising a shore 10 and a mouldboard 11 the lateral cutting edges of which are designed so that they cut a furrow, having a lateral wall 13 and a bottom wall 14 the top edge of the lateral wall 13, and the meeting line between the lateral wall 13 and bottom wall 14 lying in a plane which forms an obtuse angle with the bottom wall. The strip of earth d cut from such a furrow is turned more quickly and with less effort by the mouldboard, and interfits with previously cut strips, thus allowing the elements to be positioned close together longitudinally of the plough which may be simple balanced, quarter turn or reversible. The lateral cutting edges may be in the form of a straight line, a convex curve, a concave or convex dihedron or a convex curve terminating in a vertical line. Both the share and mouldboard may have wear resistant portions. There may also be a counter slade (45) Fig. 15 (not shown) attached to the slade 12, the counter slade supporting a spring biassed vertical fin (49).</p> |
