| 摘要 |
<p>A low transport vehicle has a platform carried by a number of wheels arranged in a transverse row, hydraulic means being provided to raise and to lower the platform. In order to prevent a tilting of the cargo during voyage with the platform with respect to the wheels in raised position, the hydraulic system is arranged in such a manner that a ram operating an outward wheel in the row may be blocked-off from the system if the pressure in the system at the opposite end of the row falls below a predetermined value.</p> |
