Abstract: A demolition system for equipping a skid steer to rip concrete and asphalt from the ground includes a bucket that is coupled to a tractor. The bucket has a rear wall and a bottom wall. A pair of blocks is provided and each of the blocks is coupled to the rear wall of the bucket. A pair of gripping units is provided and each of the gripping units is removably positioned in an associated one of the blocks. Moreover, each of the gripping units extends below the bottom wall of the bucket. Thus, each of the gripping units selectively engages an object on the ground thereby facilitating the object to be urged upwardly from the ground.

Abstract: The invention belongs to the technical field of rapid solidification of amorphous alloy and concretely relates to an iron-based amorphous alloy broad ribbon, wherein the width is 220-1000 mm, the thickness is 0.02-0.03 mm, the transversal thickness deviation is smaller than +/?0.002 mm, the lamination factor is larger than 0.84, the saturation magnetic-flux density is larger than 1.5 T, the iron loss is smaller than 0.20 W/kg under the conditions that the frequency is 50 Hz and the maximum magnetic-flux density is 1.3 T, and the exciting power is smaller than 0.50 VA/kg. The invention also relates to a manufacturing method of the broad ribbon, and a single-roll quenching method is adopted, wherein the width of a nozzle slot is 0.4-0.7 mm, the transversal width deviation of the nozzle slot is smaller than +/?0.05 mm, the transversal flatness deviation of a cooling roll (4) is smaller than 0.02 mm, and the surface roughness Ra is smaller than 0.0005 mm.

Abstract: A mobile drill rig includes a frame structure and a plurality of hinged outriggers that are adapted to be retractable to a substantially vertical position during a drilling operation and extendable to a substantially horizontal position during movement of the mobile drill rig. The frame structure is adapted to transfer a weight of the mobile drill rig through the plurality of hinged outriggers to a plurality of wheeled frame dollies during the rig movement.

Abstract: Systems and methods for erecting a drilling rig. This abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure and is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims, 37 C.F.R. 1.72(b).

Abstract: A method and apparatus for transporting and assembling a drilling rig is disclosed. The drilling rig of a preferred embodiment of the present invention utilizes specialized positioning pads integral to the side boxes of the drilling rig to facilitate the connection of the center drill floor of the drilling rig to the side boxes of the rig. A preferred embodiment of the present invention may also utilize a specialized positioning dolly and an adjustable fifth-wheel truck connection for transporting the mast to the drill site, assembling the mast sections together, and positioning the mast for connection to the drill floor of the rig. The result is a unique drilling rig design and sequence for assembly that significantly reduces the time required to transport the rig from location to location and to assemble the rig at the drill site.

Abstract: The present invention relates to an integrated percussion power tool which contains a percussion mechanism and a lift assist mechanism to reduce the physical demands for its operation by facilitating the lifting and extracting of the percussion power tool. In general, the integrated percussion power tool is a T-shaped machine which has a vertical cylindrical body with two handles, two hand control levers cross the top, and a working tool and a lifting foot on the bottom for engaging with a working surface. The first hand lever is for controlling the operation of the percussion mechanism, whereas the second hand lever is for manipulating the operation of the lift assist mechanism. The percussion mechanism and the lift assist mechanism are both housed in the vertical cylindrical body of the integrated percussion power tool.

Abstract: The present invention relates to a lift assist device which is used to alleviate the physical demands for the operation of a heavy percussion power tool, such as a pneumatic jackhammer, by facilitating lifting and freeing the percussion power tool. In general, the lift assist device contains an actuating cylinder with a lifting foot attached to the outside end of its piston rod and a control unit which comprises a directional control valve and a hand lever. The control unit is on the top of the lift assist device and can be used to control the lifting speed and height. The lift assist device is secured to the body of the percussion power tool with one or more mounting elements.

Abstract: A rock drilling rig has a carrier (1) provided with a service platform (7) which is arranged on a boom (6). The carrier (1) is provided with a four link mechanism (8) which is swingable in a plane perpendicular to the longitudinal direction (2) of the carrier. The boom (6) is swingably arranged on one link (9) of the four link mechanism (8) and arranged at a distance from the carrier (1).

Abstract: An auger mounting assembly includes a slide bearing assembly and a mounting plate. The mounting plate is attached to a motor vehicle such as an all-terrain vehicle. The slide bearing assembly is pivotally retained by the mounting plate. An auger mounting bracket extends from the slide bearing assembly. The auger mounting bracket retains a handle of the auger. The slide bearing plate may be retained in a horizontal position for transport. A second embodiment of an auger mounting assembly includes a hitch bracket and the slide bearing assembly. The hitch bracket is attached to a hitch of a motor vehicle. The slide bearing assembly is pivotally mounted to the hitch bracket.

Abstract: A mobile land rig and method are disclosed, for the transport, assembly, and disassembly of oil drilling equipment. A mobile telescoping substructure box includes at least one axle and coupled wheels lockable and releasable for engaging the ground and being raised above the ground and for supporting a mobile drill mast. A lifting means selectively supports the mobile telescoping substructure box unit in a raised position and lowered position with respect to the ground. An extension cylinder further extends the mobile telescoping substructure box unit in telescopic extension. A stationary frame member and a telescoping frame member comprising the mobile telescoping substructure box unit have a plurality of cables attached thereto for supporting the telescoping frame member when extended. Limit switches attached between the cables and frame members sense when cable tension reaches predetermined limits and generate a stop signal.

Abstract: The present invention provides a mining apparatus for installing bolts into a mine entry, said apparatus including: a frame having a forward end, a rearward end and lateral sides; an upstanding bolter support wall attached to said forward end of said frame; a laterally extending guide frame mounted to said support wall which extends along a lateral plane which is generally parallel to the support wall; at least one bolting rig slidably mounted to said guide frame; and translation means for selectively moving the bolting rig laterally along the guide frame relative to the support wall.

Abstract: A driver tool provides an apparatus and method for installing shaft objects such as casing, pipes, poles, bars, rods, piles or tubes into the ground or other surrounding media. The driver tool has a steel tower on which is mounted a pneumatic or hydraulic hammer. The hammer is attached to a chain-driven mounting plate controlled by a hydraulic or air-driven motor so that the hammer slides in either direction along the tower. In a typical operating position, the tower is generally vertical to the ground and positioned over a shaft section so that the hammer can drive the shaft object into the ground at a manually controlled rate. The hammer and tower are mounted on a chassis having turf tires for rough terrain capability. In its transport position, the tool is positioned on its tires, with the tower generally horizontal to the ground. As a result, the driver tool can be easily moved and operated by one or two men and operated in limited access areas.

Abstract: Rock drilling rig comprising a carrier (1) provided with a service platform (7). The platform is arranged on a service boom (6). The service boom is provided with a number of relative to each other movable boom sections (33-36). The service platform (7) is by means of a parallelogram mechanism (22) connected to the service boom (6). The service platform (7) is arranged to the side of the swing plane of the parallelogram mechanism (22) so that collision between the service platform and the service boom is avoided.

Abstract: A coupling for quickly and easily attaching and detaching stakes from the drive head of a horizontal directional drill. The coupling includes an upper coupler member and a lower coupler member. The lower coupler member slides into the upper coupler member, and a pin in the upper coupler member rotates into opposed, horizontal slots in the lower coupler member.

Abstract: An ergonomic demolition tool includes a jackhammer and a lift assist mechanism having a wheeled caster assembly. The lift assist mechanism has a frame which is movable between upper and lower positions to provide a lifting force to assist the jackhammer operator in raising the jackhammer.

Abstract: A mobile drilling rig has a rectangular tubular derrick or mast normally transported on the truck in a generally horizontal attitude. The mast is pivoted to vertical at the drilling site. A drill rotating power head is connected to a pull-down system located inside the mast tube and which includes a rectangular guide tube slidably mounted inside the mast tube, and two double-acting hydraulic cylinder assemblies situated in a telescoping arrangement with one cylinder assembly inside the other. A cylinder inside the inner hydraulic cylinder assembly has a closed upper end secured to the upper end of the guide tube and serves as a piston rod connected to the power head. The overall stroke of the pull-down system is greater than the typical conventional length of pipe in a drill string to facilitate adding and removing lengths of pipe. The power head is floating mounted to the guide tube.

Abstract: A mobile drilling machine adapted to be mounted on an all-terrain vehicle of the type principally utilized for recreational purposes. Secured to a reinforced rear luggage rack of the vehicle is an equipment supporting plate carrying a drill beam mounted thereto by way of a support bearing. The drill beam is rotatable from a horizontal traveling position to vertical drilling position. The drill beam has, at its lower end, a base plate which is attached to a hydraulic cylinder. At a drill site, the hydraulic cylinder is actuated to lower the base plate to the ground surface. Continued movement of the cylinder lifts the rear end of the vehicle which places a portion of the weight of the vehicle on the drill beam to maintain the position of the drill beam.

Abstract: A pile driver includes an attachment frame fixed to a work arm of appropriate construction equipment that serves as a base machine, a vibration cylinder actuated and controlled by an electro-hydraulic hydraulic servo-valve and mounted on the attachment frame through a rubber buffer, and a counter weight and a chucking means for gripping a pile to be driven K provided on the axial ends, that is, on the cylinder base and on the forward end of the piston, the pile being held in such a manner that the drive direction coincides with the axis of the vibration cylinder.