| 摘要 |
An apparatus for inspecting a lateral conduit from a main conduit including a frame, an upper push rod drive assembly and a lower push rod drive assembly. The upper push rod drive assembly includes an upper track having a plurality of upper attachments mounted thereto for engaging the push rod. The lower push rod drive assembly includes a lower track having a plurality of lower attachments mounted thereto for engaging the push rod. The push rod is held between the upper and lower attachments and in a preferred embodiment, some of the upper attachments, some of the lower attachments and the push rod move with a linearly synchronized motion.
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