| 摘要 |
<p>A vehicle has a mobile, self-propelled chassis with a platform extendable upwardly by a motor and scissors linkage. A lever is pivotally connected to the chassis and has pipe grabs of the free end; the lever is raised to deposit a pipe on rails on the platform. A vertical hydraulic motor on the platform has saddles for lifting a pipe from the rail to a higher elevation.</p> |
