| 摘要 |
<p>An operational machine arranged to operate at least in a pair along a railway line (3) in order to remove and install railway track portions and switches in general, comprising a portal structure designed to lie transversely straddling the railway line (3) and having its uprights (10) and cross-member (2) of telescopic type.
<??>At the base of each upright (10) there is provided a crawler track (14) designed to run to the side of the railway line (3) along the ballast thereof, and below the cross-member there are provided four flanged wheels (22) mounted on telescopic columns (18) and designed to run along the rails of the railway line.
<??>Below the cross-member (2) there are two rocking hook elements (30) arranged to grip said railway track portions and switches. </p> |
