B - Operations – Transporting – 23 – B
Patent
B - Operations, Transporting
23
B
77/12
B23B 41/08 (2006.01) B23B 41/00 (2006.01) B23B 41/10 (2006.01) B23B 51/04 (2006.01)
Patent
CA 1178830
ABSTRACT OF THE DISCLOSURE A cutting device, intended primarily for use in a confined space, e.g. for drilling apertures in a horizontally extending under- ground pipe exposed by an excavated shaft is provided herein. The cut- ting device includes a jig for receiving a rotary cutting tool. At least two expandable struts are connected to the jig and are arranged to be expanded laterally and outwardly from the jig to bear against an adjacent supporting surface or surfaces. Means are provided which define an angle of inclination of the struts relative to an axis of rotation of the cut- ting tool, the angle of inclination being such that, when expanded against the surface or surfaces, each strut exerts on the jig a force having a component which is parallel to the axis of rotation and is directed towards a work surface, thereby clamping the jig against the work surface. The cutting device is compact and can be positioned and operated from ground level. It therefore requires only a comparatively narrow excavated shaft.
396278
Borden Ladner Gervais Llp
Clearline Services Limited
LandOfFree
Remote drilling apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Remote drilling apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Remote drilling apparatus will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1315051