Tunneling system
AssigneeTechniques Industrielles et Minieres
InventorPaul Casanova
Life of this patent
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Abstract
The system for digging subterranean galeries comprises a cutting tool articulated on a frame and mounted so as to be movable along the height of the mine face. This frame is provided with ground support means and with propulsion means for following the progress of the cutting, the articulation point of the cutting tool being situated in the upper half of the system in operating position. The articulation point of the cutting tool may be situated on a member movable with respect to the frame and movable in a direction substantially parallel to the direction of advance. The shaft bearing the cutting tool may be mounted on two bearings, one of which is movable vertically to give the tool an oblique path in a pre-determined direction.
Claims16
In a tunneling system, comprising a cutting tool articulated on a frame and mounted so as to be movable along the height of the mine face, said frame being provided with ground support means and with propulsion means for following the progress of the cutting, the articulation point of the cutting tool being situated in the upper half of the system in any operating position;
- the improvement wherein the frame comprises two upstanding lateral flanges with a free space between them, the cutting tool being mounted for vertical swinging movement on a horizontal shaft that is supported at its ends by said flanges, the space below that portion of the shaft that is between its supported ends being open down to the ground to give access to the mine face for staff and any apparatus.
Dependencies are inferred from the claim text.