| 摘要 |
A machine for producing an internal cavity or slot in a workpiece, and articles manufactured therewith. The machine includes two wheels rotatably mounted on a frame, and a motor for rotating one of the wheels. Disposed around the wheels is an endless tape having a segment provided with cutting teeth. The cutting teeth consist of notches along one tape edge and a tooth element transverse to the tape and located at one of the vertices of the notch. The tooth elements have different dimensions and are arranged progressively from smallest to largest.
|
