| 摘要 |
<p>PCT No. PCT/EP82/00197 Sec. 371 Date May 12, 1983 Sec. 102(e) Date May 12, 1983 PCT Filed Sep. 11, 1982 PCT Pub. No. WO83/00831 PCT Pub. Date Mar. 17, 1983.To set the proper location of a cutting bit, an optical scanner directs an optical beam toward a screen. The scanner is mounted on a base frame. The cutting bit is mounted on a cutting head holder which is, in turn, mounted on a support stage, the latter being vertically adjustable on the base frame. The cutting head holder is adjustable relative to the support stage and the measuring point. The support stage carries three support bodies for the rear side of the cutter head holder.</p> |
