| 摘要 |
A plastic article is rotated about an axis of rotation and a cutting blade mounted on a pivotal arm is moved towards the rotating article proximate a groove therein where the article is to be cut. The arm is resiliently supported to permit transverse movement therein parallel to the axis of rotation and when the blade is lowered against the article, it rides along an inclined surface adjacent the groove so as to be guided into the groove to effect the removable of the undesired waste on the article beyond the groove. |
