| 摘要 |
<p>NORMAN BRUCE BURROWS "IMPROVEMENTS IN PADDING MACHINES" A machine for distributing padding material within a previously dug ditch so that a pipe placed within the ditch is protected from objectionable objects which may otherwise cause damage thereto. The padding machine comprises an earth moving vehicle having a laterally arranged conveyer means connected thereto, so that padding material can be transported laterally away from the vehicle and into a ditch while the machine travels along a parallel path respective to the ditch.</p> |
