| 摘要 |
<p>An all purpose mobile scouring machine includes a rolling carriage on which is arranged at least one slider carrying a battery of nozzles parallel to one another supplied with fluid under high pressure. The slider is arranged to be driven with continuous to-and-fro movement on a horizontal axle transverse to the carriage, this movement being effected on each side of a median position and driven by a suitable motor. The machine includes at least one nozzle-holder apron, at least two cross-members on which each of the nozzles is pivotably fixed, the assembly of the nozzles of each apron thus being continually movable, in the manner of a deformable parallelogram, in one direction and then in the other, on corresponding oscillating movement of the slider.</p> |
