| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a hand-operated machine capable of readily moving heavy stone for salting vegetables in vertical or horizontal directions. SOLUTION: In this hand-operated machine, vertical movement can readily be carried out by combination of gears and left and right movement of a gear box is carried out by forming the upper frame of the gear box in an L-shaped rail and moving the gear box along the rail.</p> |
