| 摘要 |
<p>An apparatus is disclosed for selective rotation of an elongate member about a longitudinal axis. The apparatus comprises spaced mounting members (1), each including a base frame (3) and a circular support bracket (2). The circular support bracket (2) is supported for rotation by spaced rollers mounted on the base frame (3) and least one of the mounting members (1) includes a drive mechanism (4, 5) for driving one of the spaced rollers. Each circular support bracket (2) includes an adjustable mount (19, 17) to support an end of the elongate member during rotation and one of the mounting members (1) is movable relative to another mounting member (1) to accommodate elongate members of different lengths.</p> |
