| 摘要 |
<p>The device in question consists of an endless chain (10) that slides inside a guide channel (12) placed, over a given distance (20), transversely to the rails, underneath the substructure of the sleepers and downstream of the main digging channel (5), or cutter with which machines utilized for this purpose are provided. The guide channel has, bilaterally, two sections (12 min ) and (12 sec ) that slope vertically and converge in a horizontal plane, the lower part of these being equipped, in the region of the lateral extremities of the sleepers, with a trap-door (15) for discharging on to the said sleepers, the metalling conveyed by the chain. A horizontal conveyor (17) is positioned transversely with respect to the rails, beneath the highest section of the chain, in order to receive the metalling issuing there from but not discharged on to one extremity of the sleepers, this being designed to discharge the said metalling on to the opposite extremity.</p> |
