| 摘要 |
<p>A levelling device, which can be bolted, for strip-shaped components, in particular for the running surfaces of skittle alleys, is proposed, in the case of which a ball-head bolt is used which is mounted, at various vertical spacings with respect to the foundation, in exchangeable ball sockets of suitable receiving elements. Bearing blocks having ball sockets made in all their surfaces are used as suitable receiving elements. The bearing blocks can therefore be turned, with the result that various vertical gradations can be achieved.</p> |
