| 摘要 |
A railway maintenance machine including a carriage or body portion (22) and a boom (38) extending therefrom and functioning to remove railroad ties (88) from a railway bed and insert new ties in place thereof, is disclosed. Latch arms (90), mounted to the underside of the vehicle body (22) can be provided to lock rail portions of the track (86) to the body (22) so that, when the body (22) is jacked up by means provided for this purpose, the tracks (86) will be elvated also. The boom (38) mounts a working element (40) which includes angularly spaced removing and inserting arms (98, 100) which are rotatable to effect removal and insertion of ties (88).
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