E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 7/04 (2006.01) E21C 11/00 (1995.01)
Patent
CA 2246654
The Postarm Drill System is a method and pneumatic apparatus used to secure a pneumatic drillin a position to allow it to drill horizontal holes in a rock face in underground operations It is known to have as its main post a hollow tube which has at either end within its hollow a pneumatic cylinder capable of extending outwards in both directions. In this invention a pneumatic control valve is mounted to the main post thus allowing the operator to hold the post in the desired position and by extending the cylinders outward until contact is made with the roof and floor of the mine thus allowing the post to stand freely. In this invention a bracket is attached to the main post dependent upon an air feed motor and chain to cause it to travel the length of the post. The bracket is equipped with a pneumatic clamp allowing for a horizontal arm to be attached to it. On the arm a control valve is mounted thus allowing the operator to manually position the arm in the desired location and lock it into position by means of the pneumatic clamp. In this invention the horizontal arm has attached at its end a bracket allowing a slide rail to be attached for the purpose of mounting the pneumatic drill system upon it. The slide rail has attached to it a fixed back stop in which the pneumatic cylinder of the pneumatic drill system may be attached thus allowing the post drill to be moved forward or back to allow for the rubber bumper to make contact with the rock face. The chain and feed motor system now allows the operator to raise or lower the drill to the desired location then move the drill forward until contact is made with the rock face. By means of the remote control console the operator can now stand clear and drill the desired hole.
Burke Ronald
Gowling Lafleur Henderson Llp
LandOfFree
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