1954年四川宜宾专署曾改良一种足踏龙骨车推广,秋收时又有手摇龙骨车出现在郊区。因为把足踏改为手摇,可以节省座架、尾架、羊蹄爪等材料;制作时简便省工;运用时也不择地势,必要时一个人也行。每小时抽水量近400担左右,与足踏的相同;比旧式龙骨车抽水量约大三分之一以上。现将它的制法介绍如下:1.车桶子:长1.2丈。用宽5.6寸、厚1寸的木板2块和宽6寸、厚1寸、长1.2丈的木板2块, 1954 Yibin, Sichuan Agency has improved a foot keel car to promote the autumn harvest there hand keel car appeared in the suburbs. Because the foot to hand, you can save the seat, tailstock, sheepskin claws and other materials; simple and labor-saving production; use also choose the terrain, if necessary, a person will do. Pumping about 400 tons per hour, with the same foot; pumping more than about one-third more than the old Keel car. Now its system of law introduced as follows: 1 car bucket: 1.2 feet long. With a width of 5.6 inches, 1 inch thick wood 2 and 6 inches wide, 1 inch thick, 1.2 feet long wooden board 2,