Abstract: The invention concerns a self-penetrating drilling method and a thrust-generating tool: the tool comprises N blades. Each blade comprised K drill cutters. The shapes, positions and orientations of said drill cutters are determined in the following manner: the kth drill cutter of the last blade drills, at the (q?1)th of the tool rotational cycle, a cut in the rock downstream of the one produced by the (k+1)th drill cutter of the first blade at the qth rotational cycle of the tool; the kth drill cutter of the nth blade drills, at the qth rotational cycle of the tool, a cut in the rock downstream of the one produced by the kth drill cutter of the (n+1)th blade at the qth rotational cycle of the tool; the normal to the leading edge of the drill cutter has a component along the axis of rotation oriented towards upstream.

Abstract: The invention relates to a drilling tool (36), in particular for working concrete, rock, masonry and suchlike materials, having a single- or multi-edge tool head with at least one cutting body (1) which comprises a central region (12) which is designed in a roof shape, has rake faces and flanks and is defined laterally by two outer regions (13, 14) set back in the effective direction of the drill. In this case, the ground surfaces of the central region (12) form a pyramidal point (15) while avoiding the formation of a chisel edge.

Abstract: Device for producing bored piles having an auger, which along at least part of the auger length is surrounded by a rotating encasing tube and during boring the encasing tube is rotated in or counter to the rotation direction of the auger and in which the auger and the encasing tube are introduced essentially simultaneously into the ground during boring. To facilitate material discharge, the surface roughness of the auger helix surface pointing in the feed direction is increased compared with the roughness of the rolled surfaces in a complete or partial surface manner by additional machining. The increase in the surface roughness extends at least over the auger length necessary for feed purposes.

Abstract: A drill comprising a shank part (11), which is adapted to be received in a drill holder of a drilling machine, and an opposite cutting end part (13). An intermediate fluted part (12) is provided, which defines at least one helical flute or channel (16) having a bottom surface (19) and a pair of opposite side surfaces (20) defined by the ribs or lands (17). The shape of a cross-section of the at least one flute or channel, taken at right angles to the course of the flute or channel, is such that the distance from a reference plane (24) to the bottom surface or the flute is decreasing from a central part (22) of the bottom surface towards the adjacent side surface (20) of the flute. The reference plane is at right angles to a radial line (25) extending from the longitudinal axis of the drill and through the centre of the bottom surface width. A helically extending groove (21) is formed in the middle of the central part (22) of the bottom surface (19).

Abstract: An auger to assist in ground-burrowing or mixing paint or concrete, is used by attaching it to an electric or cordless power source. The major advantages over previous augers are: a hex head design prevents slipping in the drill chuck, an offset boring tip provides better digging, and a removable extension allows for the digging holes from a sitting or standing position possible without straining. The cutting edge of the auger's discs is sharpened for easier digging in hard soil. A single spring pin lock connects a first shaft to the extension shaft.

Abstract: An auger has an outer blade and a center bit. The outer blade includes an outer ring and an inner hub, and the center bit inserts into the inner hub. The outer ring has an array of circumferentially-spaced teeth, and the inner hub is inwardly spaced from the outer ring by an array of inner spokes. Each spoke in the array of inner spokes also has a bladed portion for removing material. The center bit has a drill bit-shaped tip, a toothed cone, and a shaft all concentrically aligned with the outer ring and with the inner hub. The toothed cone includes at least one blade outwardly protruding from the toothed cone, and the shaft inserts into the inner hub to center the center bit with the outer ring and with the inner hub. The drill bit-shaped tip centers the auger bit, and the array of circumferentially-spaced teeth moves soil and cuts roots. The at least one blade outwardly protruding from the toothed cone also moves soil and cuts roots.

Abstract: A hollow auger head assembly for penetrating geological formations that utilizes drill bit assemblies to which both blades and finger bits are attached. The method of securing the individual drill bit assemblies to the auger head reduces incidents of the drill bit assembly becoming detached from the auger head during drilling operations. Additionally, a rust-resistant attachment mechanism is used attach the drill bit assemblies to the auger head, which makes the drill bit assemblies easier to remove and replace. The configuration and arrangement of the bits improves cutting efficiency, increases wear life and reduces the likelihood of the bits breaking during operation.

Abstract: A plurality of chip evacuating grooves (16, 26, 36, 46a, 46b) in a vertical direction in parallel with a rotational axis of a core main body (14) are formed at an outer peripheral face of the core main body (14) in a circumferential direction from a lower end portion to an upper end portion of the core main body (14) in a cylindrical shape provided with a drilling blade (15) at a lower end edge thereof. Further, a sectional area of the chip evacuating groove (16) is formed to gradually increase from a lower end to an upper end of the core main body (14). Further, a number of projections (52, 62, 70, 72) are formed at the outer peripheral face of the core main body (14) between the chip evacuating grooves.

Abstract: A rock drill for rotary hammers is proposed in which a conveying helix (3) having main and secondary webs (6 to 9) is used. A one-piece carbide crown, with its wing-shaped main and secondary lips (24 to 27), is butt-welded to the conveying helix.

Abstract: A rock drill including a helical shank and a drill head. The drill head has an end face pointing in a feed direction and at least one roof-shaped carbide cutting element on the end face of the rock drill. The carbide cutting element extends transversely across the drill head and has cutting edges. The end face of the carbide cutting element has an additional chip space at least in front of the carbide cutting element and includes an encircling step to create the additional chip space in the feed direction.

Abstract: A portable apparatus for exploration and sampling of placers which is capable of being disassembled for transport into areas not accessible to traditional sampling methods. The sampling unit operates on a principle of power augering and water jetting a sampling pipe to bedrock while concurrently recovering ¾? minus materials, including particles and nuggets of valuable minerals and gemstones, through a concentric center pipe, such recovery powered by a ring jet venturi and supplemented by a sample hole plug to increase the water pressure in the sampling hole.

Abstract: A screw form anchor device (10) intended for screwed penetration into a host material. The anchor device (10) includes a body (11) having a manipulating end (12) and a distal end (13). A screw thread (22) is formed by a plurality of tapering angular helix thread forms (22a) which extend from the distal end. Each angular helix thread form (22a) has an outward facing surface (24) and, relative to the distal end, a downward facing surface (25). In the preferred form an emergent helix thread (26) commences from a point distant from the distal end (13). This emergent helix thread (26) extends toward the manipulating end (12) of the body (11).

Abstract: An object of the present invention is to provide a drill bit capable of easily drilling a drill hole that has no rifling, and has high circularity, can be easily positioned, the drill bit comprising a cutting blade tip which is composed of a block body of cemented carbide, three cutting blade portions are formed circumferentially equidistantly around the cutting blade tip, a connection line between a cutting surface 5 and a flank surface 6, said cutting and flank surfaces being formed in each said cutting blade portion 4a, 4b, 4c, acts as a main cutting edge 8 whereas a connection line between a connection surface 7 and said flank surface 6 acts as an auxiliary cutting edge 9, said main cutting edges 8 and said auxiliary cutting edges 9 cross at a blade tip point 10 so that said blade tip point 10 is shaped like a peak with no chisel edge, each said auxiliary cutting edge 9 lies on a line extending from said main cutting edge 8 of a said cutting blade portion located opposite across said blade tip point 10, a

Abstract: Rotary drilling apparatus comprising at least one kelly bar, interlockable with one ore more other kelly bars in end-to-end arrangement such that, in use, a rotational force applied to an uppermost kelly bar is transmitted to each of the kelly bars below it; a tool, for example an auger, having a bore therethrough in which the outer surface of one of said kelly bars can slideably engage; and lifting means for selectively raising and lowering said tool by sliding it over the outer surface of said kelly bars, whereby, in use, said tool is lowered by sliding it over said interlocked kelly bars and attached to a lowermost kelly bar so that a rotational force applied to said lowermost kelly bar is transmitted to the tool, characterised in that at least part of said lifting means is capable or rotation about a longitudinal axis of said kelly bar for synchronous rotation therewith.

Abstract: “DRILLING AND ANCHORING DEVICE FOR DIVERSE APPLICATIONS”, the present patent is described as a drilling and anchoring device for diverse applications which, according to the characteristics thereof, possesses as a basic principle to provide the formation of a specific drilling and anchoring device of the most diverse products to soils, fully based on a lower penetration device (3), in order to fully optimize both processes by directly eliminating excavations and high efforts, having as a basis a drilling and anchoring device (1) incorporating a proprietary structure of high durability and strength possessing a properly integrated and attached main supporting body (2), a lower penetration device (3), a central rotating device and, as an option, an upper fitting device, so as to form a structure whose shape and internal and external arrangement directly adapts itself to the most diverse types of soils and products in general.

Abstract: A hollow auger head assembly for penetrating geological formations that utilizes drill bit assemblies to which both blades and finger bits are attached. The method of securing the individual drill bit assemblies to the auger head reduces incidents of the drill bit assembly becoming detached from the auger head during drilling operations. Additionally, a rust-resistant attachment mechanism is used attach the drill bit assemblies to the auger head, which makes the drill bit assemblies easier to remove and replace. The configuration and arrangement of the bits improves cutting efficiency, increases wear life and reduces the likelihood of the bits breaking during operation.

Abstract: A drilling bit for use in conjunction with a holder that has a bore wherein the drilling bit has a drilling bit body that has an axial forward end and an axial rearward end. The drilling bit body further includes a reduced diameter portion adjacent to the axial rearward end thereof so as to define a reduced diameter surface. A hard insert is affixed to the drilling bit body at the axial forward end thereof. A resilient retainer sleeve has a first thickness and presents an interior surface. The retainer sleeve is carried by the drilling bit body within the reduced diameter portion. The resilient retainer sleeve is in an expanded condition when the drilling bit is not within the bore of the holder and the resilient retainer sleeve is in a compressed condition when the drilling bit being within the bore of the holder.

Abstract: A rock drill (1) for rotary hammers or the like is proposed in which a conveying helix (3) having main and secondary webs (6 to 9) is used. In this case, the convexing helix (3) is run up to the front region of the drill head (2) with the core cross section being increased or the flute depth being decreased.

Abstract: A hollow auger head assembly for penetrating geological formations that utilizes drill bit assemblies to which both blades and finger bits are attached. The method of securing the individual drill bit assemblies to the auger head reduces incidents of the drill bit assembly becoming detached from the auger head during drilling operations. Additionally, a rust-resistant attachment mechanism is used attach the drill bit assemblies to the auger head, which makes the drill bit assemblies easier to remove and replace. The configuration and arrangement of the bits improves cutting efficiency, increases wear life and reduces the likelihood of the bits breaking during operation.

Abstract: A tool for boring has a first shaft for drivingly linking at a first end to a portable rotatable machine. At a second end, the tool has a fastener to which a modular auger section can be drivingly linked. A second shaft of the tool has an outer surface to which a radially inwardly extending edge of a helical flight is attached. A cylindrical collar is attached to a radially outwardly extending peripheral edge of the flight and is mounted radially outwardly of the second shaft. An insulator interposed between the shafts electrically insulates the shafts from each other. The shafts can be unlinked through a shear pin breaking in response to a predetermined amount of relative torque to the shafts.

Abstract: A twist drill bit (1) for use in rock has a helical land (7) arranged between a chuck insert end (2) and a tool head (3), and extends helically around a rotational axis (A) extending along a shaft (5). The radially outer surface (8) of the land (7) has its width (x) increasing as it approaches the tool head (3).

Abstract: A garden earth auger operating by repeated twisting its handle is comprised of a drive mechanism at the center of the handle, a gear shaft erected inside the drive mechanism and extending downward to connect to a tooling feeder; a circular yoke inserted onto the gear shaft to control two mobile pawls on one side or both sides of the turning gear shaft to engage or disengage in or from the ratchet for the pawls to drive the ratchet for the tooling feeder to continue circulating for earth excavation in an effort saving fashion while the auger can be easily replaced with a fork or other forms of tooling head to excavate for a pit or scrap soil as desired.

Abstract: A hollow auger head assembly for penetrating geological formations that utilizes drill bit assemblies to which both blades and finger bits are attached. The method of securing the individual drill bit assemblies to the auger head reduces incidents of the drill bit assembly becoming detached from the auger head during drilling operations. Additionally, a rust-resistant attachment mechanism is used attach the drill bit assemblies to the auger head, which makes the drill bit assemblies easier to remove and replace. The configuration and arrangement of the bits improves cutting efficiency, increases wear life and reduces the likelihood of the bits breaking during operation.

Abstract: A helical drill bit (1) for rock has an axially extending shank (2) located between a chuck insert end (3) and an opposite drilling head (4) with at least one axially extending helical discharge groove (7) extending radially inwardly from the outer circumferential surface of the shank. A radially projecting groove reinforcement (9) is arranged in the base of the radial groove (8), with the reinforcement changing its geometric form or its position within the discharge groove (7) along the discharge groove (7).

Abstract: An elongated pilot member is forced into the ground and an auger with a hollow stem is positioned around the pilot member and rotated to move the auger into the ground. A second elongated member is coupled to the pilot member and an upward force is applied to the auger stem or to an extension thereof to enable a downward force to be applied to the second elongated member to force the second elongated member and the pilot member into the ground. The second elongated member and the auger stem then are attached together and to a foundation support member for providing support for a foundation.

Abstract: A drill including a shank portion and a cylindrical body portion contiguous to each other. The cylindrical body portion includes (a) primary cutting edges and secondary cutting edges formed in its axially distal end portion such that each of the secondary cutting edges is located on a radially inner side of the corresponding primary cutting edge; (b) primary rake surfaces of the primary cutting edges and secondary rake surfaces of the secondary cutting edges; and (c) inclined surfaces each of which extends from the corresponding secondary rake surface to a periphery of the cylindrical body portion, and is inclined such that an axial distance between each of the inclined surfaces and the shank portion is reduced as viewed in a direction substantially perpendicular to the corresponding secondary cutting edge, from the corresponding secondary rake surface toward the periphery of the cylindrical body portion.

Abstract: An auger flight support for use with an augering systems for mining which bores a pair of side-by-side holes through the coal seam using respective augers. Each auger includes a drilling section which is followed by a series of auger flights for conveying the bored coal back out of the respective hole. The auger flight support includes a pair of thrust bearing and housing assemblies which are tied together and each supported by a respective leg which lowers the friction between the auger flight and the bottom of the bore. This significantly reduces the power required to rotate the augers.

Abstract: A twist drill including a spiral-forming hollow shaft (3) having a spiral-shaped inner surface, and drilling head(5) and shank (6) connected with the shaft (3) at its opposite ends, respectively; and a method for forming such a twist drill.

Abstract: A twist drill (1) has a plurality of of protuberances (9) arranged in the grooves (6) of the helix (4) which project radially outward partially into the groove cross section to prevent clumps.

Abstract: A drill bit for drilling rock has an elongated shaft and at least one cutting plate at one end. A clearance angle &bgr; of the cutting edges, at least in segments, increases with increasing distance from the rotary axis. A wedge angle &ggr; of the cutting edges, at least in segments, decreases with increasing distance from the rotary axis.

Abstract: An auger for drilling fishing holes in ice on a body of water has an elongated shank supporting a continuous helical flight and a plurality of partially helical scoop-like members having leading generally radial edges, ice cutting blades releasably fastened to the members adjacent their leading edges having outer portions that extend radially outward from outer edges of the members supporting the blades and serrated forward cutting edges, and a positioning pin secured to the lowermost end of the shank for drilling a positioning hole in the ice.

Abstract: A garden earth auger operating by repeated twisting its handle is comprised of a drive mechanism at the center of the handle, a gear shaft erected inside the drive mechanism and extending downward to connect to a tooling feeder; a circular yoke inserted onto the gear shaft to control two mobile pawls on one side or both sides of the turning gear shaft to engage or disengage in or from the ratchet for the pawls to drive the ratchet for the tooling feeder to continue circulating for earth excavation in an effort saving fashion while the auger can be easily replaced with a fork or other forms of tooling head to excavate for a pit or scrap soil as desired.

Abstract: A twist drill including a spiral-forming hollow shaft (3) having a spiral-shaped inner surface, and drilling head(5) and shank (6) connected with the shaft (3) at its opposite ends, respectively; and a method for forming such a twist drill.

Abstract: A rotary displacement piling equipment for boring a hole within the soil includes a rotary displacement bit, driving rod members connected to the bit, a casing surrounding the driving rod member, and a casing adapter having a lower end provided with a cylindrical collar for co-operating with the upper part of the casing for keeping in line the casing with respect to the driving rod member and with an horizontal thrust face for applying a thrust at the upper end of the casing, the driving rod member passing through the casing adapter. The equipment may also include a rotary drive box co-operating with the driving rod member for rotating the driving rod means and provided with connecting member to be connected to the upper end of the casing adapter, and vertical supporting and guiding member for supporting and vertically guiding the rotary drive box.

Abstract: An ice auger system for drilling a bore within ice with significantly reduced ice shavings. The ice auger system includes an elongate tube having a lower end, an upper end, an outer wall, a lumen and a connector shaft attached to the upper end for connecting to a motor. A length of flighting is attached to the outer surface of the elongate tube in a coiled manner. At least one bit is attached to the lower end of the elongate tube for engaging and cutting the ice in a circular pattern to receive the elongate tube and flighting. As the elongate tube is manipulated through the ice, a core is created that is positioned within the lumen of the elongate tube. When the user has drilled completely through the ice, the user then removes the elongate tube from the ice leaving the core within the newly created bore within the ice. The user then either may remove the core from the bore, or may push the core downwardly through the bore underneath the ice.

Abstract: A drilling tool (1), especially a rock drilling tool, has an axially extending shaft (2) with one end arranged to seat in a chuck of a drilling device and the opposite end securely connected to a drilling head (5). The drilling head has at least three hard metal cutting members (7, 8 and 9) with at least two adjacent cutting members located at the outer circumferential surface of the drilling head and preferably projecting radially outwardly from the circumferential surface. The cutting members are spaced circumferentially apart at an angle in the range of about 100° to about 150°. Drilled material grooves (10, 11 and 12) separate the cutting members (7, 8 and 9) in the circumferential direction. In turn the drilled material grooves (10, 11 and 12) discharge into at least one discharge groove extending helically around the shaft. A circle (E) encircling the drilling head (5) is formed by the radially outer edges of the outwardly projecting cutting members.

Abstract: A drill including a body having mortises (7), and a solid hard metal head (4) having a plurality of bits (3) and secured to the drill body over the end surface (5) of the head (4) and additionally secured to the drill body over portions of side surfaces (6) of the bits, which are located in a radially outer region of the head (4), with the side surfaces (6) extending into mortises and including first surfaces, which are associated with at least some of the bits (3) and are subjected to pressure acting in a rotational direction of the drill during operation of the drill.

Abstract: The invention proposes a drilling tool, in particular rock-drilling tool for rotary and/or percussive operation, in which, for the purpose of improving the drilling properties, the drilling-dust discharge groove is subdivided into at least two discharge-groove sections, each section having its own drilling-dust-carrying surface.

Abstract: A drill including a stem (2,22) having at least one discharge groove (3) helically circumscribing the stem (2,22), and a drill head (4,24) provided at the end of the stem (2,22) opposite the end at which a shank is provided and having at least two hard metal bits (5,25) projecting radially beyond a drill head circumference, with the drill head further having drilling dust grooves (7,27) extending at least partially between the bits (5,25) and opening into the at least one discharge groove (3) and having, at least in a region of the at least two hard metal bits (5,25), an extended circumferential profile (8,28) projecting radially beyond a circumference (9,29) of the stem (2,22).

Abstract: A universal drive and earth auger attachment for commercial work vehicles such as skid steer loaders. The reduction drive reduces the speed between the rotary actuator and the earth auger. The reduction drive includes an input connected to a rotary actuator and an output shaft adapted to be inserted into different types of sockets of earth augers. Earth augers commonly have either a cylindrical socket or a hexagonal socket. The reduction drive can be connected to either type of socket and therefore is universal among the different types of commercially available augers.

Abstract: A mill is provided for grinding and cutting objects in various wells, such as oil wells, which will typically have a cement plug or a metallic item of debris which must be ground into small enough particles to be circulated out of the hole by circulation fluid pumped through the mill. Helical watercourses have been added to the body of the mill that improves the ability of the circulation fluid to move milled particles beyond the mill. Reverse ports are also provided which divert a portion of the pressurized circulation fluid from the mill interior to the annulus adjacent the mill. The reverse ports are threaded to be closable by a corresponding set screw. An optimized configuration of carbide cutting inserts, attached as part of the mill's grinding tips, is also provided.

Abstract: A helical drill bit (1) for rock has an axially extending shank (2) located between a chuck insert end (3) and an opposite drilling head (4) with at least one axially extending helical discharge groove (7) extending radially inwardly from the outer circumferential surface of the shank. A radially projecting groove reinforcement (9) is arranged in the base of the radial groove (8), with the reinforcement changing its geometric form or its position within the discharge groove (7) along the discharge groove (7).

Abstract: A twist drill bit (1) for use in rock has a helical land (7) arranged between a chuck insert end (2) and a tool head (3), and extends helically around a rotational axis (A) extending along a shaft (5).

Abstract: There is now provided a twist drill having an elongate body at a first end, a shank at a second and opposite end, the elongate body and the shank sharing a common axis, at least one face on the elongate body at an end opposite the shank, wherein the at least one face defines a corresponding flute extending along the elongate body toward the shank, at least one flank on an end of the elongate body at an end opposite the shank, and a cutting edge at a juncture of the at least one face and the at least one flank, and the like tools, having a sintered cemented carbide body, and the use thereof in material removing and dislodging tools.

Abstract: The profiled element or portion (3) exhibits a shape which is overall of revolution with straight or curved generatrices and an axis directed along the axis of rotation of drilling. It includes projecting parts or ribs (14, 15, 20) and recessed parts or grooves (13, 16, 19) arranged in helixes with, as their axis, the axis of the rotary drilling. Over at least part (10, 11) of the length of the profiled element (3) in the axial direction, at least one of the geometric and dimensional characteristics of the recessed parts (13, 16, 19) and of the projecting parts (14, 15, 20) varies in the axial direction of the profiled element (3). As a preference, the profiled element (3) includes, in at least one variable profiled part (11), passages in the shape of grooves (16) with a cumulative cross section which decreases in a direction of flow of the drilling fluid. This thus yields a hydrodynamic bearing effect, by forming a circumferential leakage flow (18) of the drilling fluid.

Abstract: A fixed cutter, or rotary drag, bit for drilling subterranean formations, exhibiting an enhanced resistance to bit balling and an improved rate of penetration. The bit includes an auger-like blade configuration, wherein positively raked, relatively tall blades lean rotationally forward to provide increased clearance and volume between the bit face and the formation to facilitate removal of cuttings coming off the tops of the cutters from the bit face. The blades are each substantially contiguous with an elongated, helical gage pad raked rotationally forwardly in the manner of the blades, the longitudinal lengths of the gage pads and the radially outer edges of the blades in combination with their slope providing a stabilizing structure which substantially completely circumferentially encompasses the bit body. The slope or pitch of the helix angle of the blade edges and gage pads may be varied as desired to optimize hydraulic efficiency, cutter requirements of directional drilling, and stability needs.

Abstract: A planting system with the special planter to dig uniform holes, puck type plant feeders to go in the holes and plastic dual planting trays. These can be used independently or in any combination. Features include a protective shroud, pulverizing the dirt by circulating it in an enclosed area, a tapered spiral ramp to help pile the dirt and pulverize it, a root cutter, ground clearing with spinning shroud, a friction plate to power ground clearing, pointed feet at the bottom of the shroud to stop the spinning when excavation starts, a rock sifter including a ramped face on the internal louvers, a rock catcher ring with flexible fingers, piling the dirt around the perimeter, hole depth measurement rings on the shaft, a slidable ring to select gap between the bottom of the shroud and the ground and an optional locking stop ring to guarantee uniform hole depth.

Abstract: A rotary displacement piling equipment for boring a hole within the soil comprising:

Abstract: A drill having a drill head with a drill shank extending between the drill head and a plug-in end lying opposite the drill head, said drill shank having a conveying helix formed by at least two helical flutes and webs located between the flutes. The flutes comprise the same clear cross section at least in the region of the end of the drill shank adjacent the drill head and are arranged at an angle a in a range of 130° through 170° relative to one another.

Abstract: An auger system for removing material from around an object without damaging the object. The inventive device includes a tubular auger attachable to a drive unit, and an insert member insertable within the upper opening of the valve casing. The tubular auger is comprised of a plurality of mill teeth attached to the lower portion of the tubular auger. The tubular auger includes an auger lumen that is positionable about the valve casing during cutting. The insert member is comprised of lower portion that is positionable within the casing lumen of the valve casing, and an outer portion that has an outer diameter approximately the same as the outer diameter of the valve casing for guiding the tubular auger and for preventing debris from entering the valve casing. The insert member preferably includes a handle for allowing insertion and removal from the valve casing.