Abstract: A method of providing a conductor pipe to an opening portion of a well such as an oil well, gas well, geothermal power well or the like. A bore is formed in the ground with a casing tube and an auger screw, inserted into the casing tube, to a predetermined depth, after which the auger screw is withdrawn from the casing tube. Then, the conductor pipe is inserted and concentrically positioned in the casing tube, placed in the bore, to form an annular space between them, to which space a solidifiable filler is supplied from the bottom portion of the space to the upper portion thereof. The casing tube is thereafter withdrawn from the bore and then the filler is solidified to thereby fix the conductor pipe to the opening portion of the well.

Abstract: Apparatus for drilling horizontal holes includes a frame for holding a drill, and the frame is supported by a single wheel adjacent to the drill and dual wheels at the opposite end of the frame from the drill. A cable system is utilized for moving the drill inwardly toward the work and outwardly away from the work by a single operator. A single operator can also move the frame as required at the work site. Multiple drills may also be secured to the frame, so that a plurality of holes may be drilled substantially simultaneously.

Abstract: For drilling holes in remote locations there is provided drilling apparatus consisting of hand-transportable modules which include a base assembly (12), a derrick (13) removably mounted on the base assembly and including an elongated tubular member (51) and a carriage (52) moved along the tubular member by a block and tackle (81), and a hydraulic cylinder (97). The carriage has a detachable support portion (55) that supports a drill assembly (14) on one side of the derrick for drilling and an anchor assembly (15) on the other side of the derrick for anchoring the base assembly to the earth's surface. A hydrostatic drive system (17) selectively actuates the carriage, drill and anchor.

Abstract: An earth boring machine for boring straight and level elongated holes through rock-laden earth. The machine includes a stationary elongated frame upon which a first slide is carried. A second slide is carried on the first slide. An elongated auger guiding sleeve is carried adjacent one end of the first slide and has a cutting edge on a remote end thereof. A power-driven auger assembly is carried on the second slide and includes an auger which extends within the guiding sleeve. A cutting tool is carried on the end of the auger adjacent a remote end of the guiding sleeve. An hydraulic cylinder is provided for advancing the first sleeve for driving the cutting edge of the guiding sleeve into the earth while the power driven auger removes the earth as the guiding sleeve is advanced.

Abstract: A bore hole wall undercutting or reaming device in which a rotatable tubular support housing (1) (61) is adapted for rotation by drive means, has at least one circumferential guide slot in its side wall for receiving and guidingly supporting a cutting tool (4) (60) for movement outwardly to and inwardly from a cutting position. The cutting tool may comprise either a rigid and/or resilient slide or pivot lever (9) having a trailing end portion supporting a cutting member (10) thereon and a leading end portion connected to the housing by a single rigid, or pivotal pull type connection by which the housing tensions and pulls the cutting tool (4) around during a cutting operation.

Abstract: Apparatus and methods for the aeration of cesspools in operation. In one embodiment there is a tool for inserting the aeration device under the bottom of the cesspool. The tool comprises a central cylinder with retractable arms. The aeration device has retractable arms which attach to the tool and compressed air is supplied to the tool to facilitate its passage through and beneath the pool. The tool is then removed leaving the aeration devices in place with a line extending out of the pool to receive compressed air. Other embodiments include the method of inserting the aeration device, a system for aerating a pool, and methods for controlling the operation of the aeration device.

Abstract: A drilling tool adapted to produce a radial enlargement along a cylindrical elementary drilled hole in concrete masonry. The tool comprises at least one cutter which is mounted in a slot in a drill sleeve which enters the elementary drilled hole, this cutter being held so as to be fixed in the peripheral direction and axially but movable radially by an inner spreader element, provided with chamfered surfaces, which is movable axially relatively to the drill sleeve. This spreader element is in one piece with the shank, which is directly rotatively driven, is movable axially relatively to the drill sleeve and is close-fitted therewith in the peripheral direction. The end of the drill sleeve projecting out of the elementary drilled hole is connected to an abutment piece which determines the location of the radial enlargement along the drilled hole.

Abstract: Large hole boring equipment is used for boring a large diameter blind pilot hole. Then such equipment is removed from the hole and a room is blasted at the closed or blind end of the hole. Then the large hole cutterhead is replaced by a reamer and the equipment is inserted back into the hole. The reamer is an adjustable diameter type and its diameter is increased once it is within such room. A wrench carried by a drive head of a drilling machine is used to rotate a small diameter shaft which extends downwardly through the drill string to a lead screw which is a part of the reamer. Rotation of the lead screw causes axial travel of a lead nut. As the lead nut travels it moves a plurality of links which in turn swing a plurality of cutter carrying arms outwardly from the axis of rotation.