Trolley to handle piled articles - has vertically moving lightly sprung floor deflecting object height per object weight

摘要

The trolley is for handling identical objects, piled up. It has a vertically moving rectangular floor held flexibly. The sagging of this under the weight of each item equals the height of the object. The four sides of the moving floor (14) are carried on lazy tong type supports (20) and te floor is supported on a helicoidal spring (15) fixed to the base. The base is carried on four castor type wheels (7). The moving floor is guided in two guides (9, 10).