Patents
To meet the present day requirement of most Indian sites for making horizontal bores of 50 to 200 mm diameter and length 2 to 10 meters, no hitherto known machines are found suitable for the purpose. The innovative device satisfactorily fulfills the aforesaid site requirements. The invention provides a boring device comprising a plurity of drill rods sequentially coupled in one line for boring an elongated bore with facility of sequential pull back of the drill rods after the boring operation. In wet boring the fluid may be supplied to the cutter through rotating hollow drill rods for helping the soil cutting operation as also for removal of spoilage from the bore. Under dry boring condition the power rotation of the cutter/auger for cutting soil provides relief to manual labour against rotating the auger by hand / manually. Reaction pads help in maintaining the boring device in a set position during boring and pull back operation of the cutter/auger thus ensuring trueness of the bored hole. Also disclosed is the working and use of the invented device. The innovative device is compact and light in weight for its easy handling at site.