摘要 |
<p>The pusher has pusher blades (1, 1a) jointed together with a rotatably supported handle (2) and an interlock so that the pusher is set on abrasive edge of the pusher blade (1a) by swiveling the handle from one side to another side. The handle is changeably fixed into the interlock in levels, where the handle is equipped with a fixed hinge. Two fixed rollers are supported axially to a wheel axis and are adjustable over the hinges by the handle.</p> |