| 摘要 |
<p>Where large drums 1 and 2 are to be rotated about a horizontal axis to enable an annular weld 3 to be deposited, irregularities may cause the drums to move axially whilst being rotated. The invention provides a support by which the tendency to creep may be corrected. The support provides rollers 25 on which the drum 1 is welded. The rollers 25 are mounted on a rocker carriage id that can tilt about a spindle 19. By altering slightly the tilt of the carriage 14, the axis of the drum can be easily shifted laterally in the sense that will tend to counteract the tendency to creep.</p> |
