| 摘要 |
<p>A mobile land vehicle is provided for laying successive pipe sections. The vehicle includes a frame having front and rear ends and ground engaging support means for the frame operative to support and advance the frame from and forwardly over the ground. The frame includes longitudinally spaced front and rear support structures supported therefrom and projecting outwardly from one side of the vehicle at points spaced therealong. The support structures each include pipe section engaging structures for engaging and supporting longitudinally spaced portions of a pipe section extending therebetween. The support structures each include structural components operative to adjustably vertically and laterally position the corresponding pipe section engaging structure relative to the frame of the vehicle.</p> |
