| 摘要 |
<p>INVENTOR: JOHN P. AURICH TITLE: CONTAINMENT SYSTEM An apparatus, suitable for monitoring the efficiency of a containment system, has an elongate platform for spanning a duct. A carriage is slidably mounted on the platform. First and second drive shaft are arranged for driving the platform across the duct and the carriage along the platform. An intermediate drive shaft is arranged for driving the first drive shafts. A drive means is arranged outside the duct, connected to the intermediate shaft and a fluid seal is provided around the intermediate shaft. The second drive shaft can either be driven from the intermediate drive shaft, or from a separate drive unit.</p> |
