| 摘要 |
<p>PCT No. PCT/GB97/02824 Sec. 371 Date Jun. 14, 1999 Sec. 102(e) Date Jun. 14, 1999 PCT Filed Oct. 14, 1997 PCT Pub. No. WO98/16353 PCT Pub. Date Apr. 23, 1998Apparatus for mounting a drill on the pipe comprises a platform carrying a mounting member for a drill stand. The mounting may slide along a frame which carries a plurality of elongate holes therein. The longitudinal movement allowed by this relative sliding permits a drill mounted on a drill stand to be selectively positioned in order to bore a hole in a pipe upon which the platform is rigidly clamped. By provision of such a facility, there is no need to loosen the clamping force of the platform upon the pipe.</p> |
