| 摘要 |
A wheeled carriage comprises a frame member, two independently swivelling ground-engaging wheels mounted spaced apart below the frame member, and at least one pipe support member mounted below the frame member for pivotting about a substantially horizontal axis transverse a notional line joining the swivel axes of the wheels. The pipe support member is adapted to support a pipe between the wheels. The carriages are used to form a pipe train comprising a series of connected pipe sections supported by a plurality of wheeled carriages connected together in pairs by pivotal link bars bridging the frame members of connected pairs of carriages, the pipe sections being flexibly connected together between each connected pair of carriages. |
