| 摘要 |
<p>The vibrator is for piles of varying types. It has a chassis and a vibrating table connected to a lift moving it vertically between a working and rest position. The table, when it works on small piles, is in the centre of another vibrating table, intended for larger piles. This has a different vibrating drive and rests on the top of several vertical jacks, the bodies of which are fixed to the chassis. The second vibrating table moves vertically in a well in the centre of the first.</p> |
