Abstract: A horizontal grinding machine includes a frame, a feed hopper that is adapted to receive material to be processed and a feed conveyor that is associated with the feed hopper and adapted to move material to be processed in a processing direction. The grinding machine includes a grinding cylinder that is adapted to rotate about a generally horizontal grinding axis and a feed roller assembly that is mounted on the frame at the rear end of the feed hopper and in front of the grinding cylinder. The feed roller assembly includes a feed roller that is adapted to rotate about a generally horizontal axis in a first direction that urges the material towards the grinding cylinder and a second direction that urges the material away from the grinding cylinder.

Abstract: A log chipping machine includes a frame having a long axis and a rotating chipping mechanism having an axis of rotation that is oblique to the long axis of the frame of the machine. The machine also includes a log advance system that is adapted to advance a log to the chipping mechanism, in a processing direction that is generally parallel to the long axis of the frame. The log advance system includes an upper feed assembly. A control system includes a lifting assembly and a controller assembly. The lifting assembly is adapted to move the upper feed assembly with respect to the frame between an engagement position in which the upper feed assembly contacts the log to advance it towards the chipping mechanism and a raised position in which the upper feed assembly is above and out of contact with the log.

Abstract: A sorting conveyor for separating ferromagnetic materials from a stream of materials includes a conveyor component having an input end and an output end. The sorting conveyor also includes a conveyor drive system for driving the conveyor component to move the stream of materials from the input end to the output end for discharge of at least a portion of the stream of materials as a product stream at the output end. A magnetic separator is located adjacent the conveyor component and adapted to divert ferromagnetic materials from the stream of materials into a metal stream that is separate from the product stream.

Abstract: A material reduction machine includes a frame and a reducing assembly having a cutting element that is mounted for rotation with respect to the frame. The machine includes a feed chute for directing material to be reduced to the reducing assembly, and housing assembly includes a reducing assembly housing which at least partially encloses the reducing assembly and a discharge chute for directing reduced material away from the reducing assembly. An opening in the housing assembly located downstream of the reducing assembly forms an air inlet though which air may be drawn from outside the housing assembly. An air inlet adjustment assembly is mounted so as to be capable of selectively changing the length of the air inlet.

Abstract: An assembly for handling drill pipes includes a basket for drill pipes arranged in rows and columns, and a support table that has a drill pipe receiver. The support table moves laterally with respect to the drill pipe basket between a plurality of column alignment positions and an external position which locates the drill pipe receiver laterally outside of the basket. The support table also moves between the plurality of column alignment positions and the external position. The drill pipe handling assembly also includes a drill pipe elevator assembly and a loader arm assembly comprising a loader arm having a pipe gripper. The loader arm moves between a table alignment position in which the pipe gripper may grab or release a drill pipe when the support table is in the external position and a drilling alignment position in which the pipe gripper may grab or release a drill pipe.

Abstract: A discharge chute for a material reducing machine having a discharge opening includes a plurality of adjacent chute segments and a linkage system. The plurality of adjacent chute segments includes a rear chute segment, an intermediate chute segment and a front chute segment, each of which is pivotally connected to an adjacent chute segment. The linkage system includes a plurality of links that interconnect the adjacent chute segments, and an actuator that is adapted to cause the discharge chute to be steered to the left by pivoting the intermediate chute segment to the left with respect to the adjacent rear chute segment, and to cause the discharge chute to be steered to the right by pivoting the intermediate chute segment to the right with respect to the adjacent rear chute segment.

Abstract: A material reducing machine includes a rotor assembly having a plurality of short cutting tools and a plurality of long cutting tools. The short cutting tools are arranged in rows which extend across the length of the rotor assembly, which rows are spaced around the periphery of the rotor assembly. Each of the short cutting tools has a cutting bit with a leading edge that is spaced outwardly from the periphery of the rotor assembly by a short cutter distance. The long cutting tools are also arranged in rows which extend across the length of the rotor assembly, which rows are spaced around the periphery of the rotor assembly. Each of the long cutting tools has a cutting bit with a leading edge that is spaced outwardly from the periphery of the rotor assembly by a long cutter distance that is greater than the short cutter distance of each of the short cutting tools. A breaker assembly includes a plurality of shear blocks, each of which is spaced so as to be aligned with a short cutting tool.

Abstract: A material reduction machine includes a frame, a drum housing mounted to the frame, and a drum that is mounted for rotation within the drum housing. The drum includes a circumferential wall and a knife that is mounted on the drum. The machine includes a plurality of interchangeable belly bands, each of which is adapted to be removably attached to the frame so as to form a portion of the drum housing and to provide an inner surface that forms a belly band arc portion that is concentric with and of a larger diameter than the circumferential wall of the drum. A first interchangeable bellyband has a smooth inner surface, and a second interchangeable belly band has a plurality of flow interrupters spaced along its inner surface.

Abstract: A material reducing machine includes a frame and a drum rotor which is mounted for rotation with respect to the frame. The drum rotor includes a generally cylindrical peripheral wall with a tool mounted thereon. The tool has a leading edge that defines an arc as the drum rotor is rotated, which arc is spaced outwardly from the peripheral wall and is parallel thereto. The machine includes a material input device for conveying material to be reduced towards the drum rotor, and an outlet for reduced material. A breaker bar assembly is located adjacent to the drum rotor. The breaker bar assembly includes a back plate with a plurality of breaker bars mounted thereon. The breaker bar assembly is located so that material which is carried by the tool of the drum rotor is directed against the breaker bar assembly.

Abstract: An angled endgate assembly adapted to produce an edge on an asphalt mat. The preferred angled endgate assembly comprises a frame that is adapted to be attached to an item of asphalt paving equipment. The preferred angled endgate assembly also comprises an edger assembly that is attached to the frame and has an asphalt contacting surface. The preferred asphalt contacting surface tapers from a minimal compaction portion to a maximum compaction portion. The preferred angled endgate further comprises a means for moving the edger assembly relative to the frame. The method of the invention comprises providing an angled endgate assembly adapted to produce an edge on an asphalt mat. The method also comprises compacting the edge of the asphalt mat.

Abstract: A wrench assembly is mounted on a drill rig so as to have some freedom of movement in three axes. The wrench assembly includes a wrench subassembly having an upper wrench and a lower wrench. Both the upper wrench and the lower wrench are provided with jaw assemblies that are adapted to grip a pipe section or to release it. One of the upper wrench and lower wrench is pivotally moveable with respect to the other to apply a twisting force to a pipe section gripped by one of the upper and lower wrenches with respect to an adjacent pipe section gripped by the other of the upper and lower wrenches. The wrench assembly also includes a generally planar support table. The wrench subassembly is attached to the support table in such a manner as to allow the wrench subassembly to pivot about an axis that is perpendicular to the plane of the support table, and in such a manner as to allow the wrench subassembly to tilt with respect to the plane of the support table.

Abstract: A drum rotation machine includes a working drum mounted for rotation within an enclosure. An access door provides access to the interior of the enclosure, and the access door is moveable between a closed position and an open position. A latch assembly is mounted on the enclosure and is moveable between a locked position and an unlocked position. In the locked position, the latch assembly prevents the access door from moving from the closed position to the open position. In the unlocked position, the latch assembly allows the access door to be moved from the closed position to the open position, and engages an anti-rotation catch on the working drum to prevent rotation of the working drum.

Abstract: A drilling rig assembly having a longitudinal axis and comprising a drilling rig skid and a derrick assembly having a derrick assembly pivot axis and being adapted to move relative to the drilling rig skid. The derrick assembly comprises a pair of derrick masts disposed on opposite sides of the longitudinal axis and comprising a rack, and a carriage assembly being substantially disposed between the pair of derrick masts, being adapted to move along the pair of derrick masts and comprising a pinion. The drilling rig assembly also comprises a means for moving the derrick assembly relative to the drilling rig skid, a pipe loader assembly having a pipe loader assembly pivot axis, and a means for moving the pipe loader assembly relative to the drilling rig skid. The derrick assembly pivot axis and the pipe loader assembly pivot axis are co-axial.

Abstract: A material reduction machine includes a frame, a drum housing mounted to the frame, and a drum that is mounted for rotation within the drum housing. The drum includes a circumferential wall and a knife that is mounted on the drum. The machine includes a plurality of interchangeable belly bands, each of which is adapted to be removably attached to the frame so as to form a portion of the drum housing and to provide an inner surface that forms a belly band arc portion that is concentric with and of a larger diameter than the circumferential wall of the drum. A first interchangeable bellyband has a smooth inner surface, and a second interchangeable belly band has a plurality of flow interrupters spaced along its inner surface.

Abstract: A guided boring machine includes a cutter head, a steering head and an internal casing with an auger therein for conveying material cut by the cutter head towards the rear end of the auger. The boring machine bores a tunnel from a launch pit to a target pit along a desired boring direction and simultaneously installing a selected one of a plurality of differently-sized product casings in the tunnel. When the internal casing is placed within a selected product casing with its internal casing longitudinal axis coincident with the longitudinal axis of the selected product casing, an annular space is formed with respect to the selected product casing. The guidance assembly includes a laser that is mounted behind the boring machine and oriented so as to direct its beam in a desired boring direction within the annular space. A target mount is mounted to the steering head inside surface. The target mount includes a roll correction slot which is parallel to the adjacent steering head inside surface.

Abstract: A pipe handler comprising a skid and a base having a base longitudinal axis. The base is adjustably mounted on the skid. The pipe handler comprises a means for adjusting the base, a boom, and a means for moving the boom between a position substantially parallel to the base longitudinal axis and a position substantially perpendicular to the base longitudinal axis. The pipe handler includes a pipe gripper that is pivotally attached to the boom. The base of the pipe handler is adapted to be adjusted in any direction relative to the skid when the boom is in any position from substantially parallel to the base longitudinal axis to substantially perpendicular to the base longitudinal axis. The method also includes engaging a pipe with a pipe gripper, moving the boom in a direction toward a pipe rotation mechanism, adjusting the base, and releasing the pipe from the pipe gripper.

Abstract: A boring machine includes a cutter head, an internal casing and an auger that is located within the internal casing. The cutter head and the auger are operationally connected to a rotational mechanism. A rear bulkhead is located at the rear end of the auger, and a rear hopper is located behind the rear bulkhead. The boring machine also includes means for directing material cut by the cutter head into the auger so that rotation of the auger will convey such material rearwardly to the rear hopper. The boring machine includes a transverse conveyor located behind the rear bulkhead in the rear hopper which is adapted to convey material out of the rear hopper in a direction transverse to the longitudinal axis of the auger.

Abstract: A drilling assembly for drilling pipe into a drilling surface using a drill bit. The drilling assembly comprises a power unit, a thrust frame, a means for moving the thrust frame, a rotary and carriage assembly and a microprocessor adapted to control the load on the drill based upon the level of mud pressure in the assembly. The drilling assembly is adapted to drill pipe at any angle relative to the drilling surface between substantially parallel to the drilling surface and substantially perpendicular to the drilling surface. The method comprises providing a such drilling assembly, placing a drill pipe onto the drilling assembly, moving the thrust frame to a desired drilling angle, moving the rotary and carriage assembly into direct contact with the drill pipe, applying rotational, thrust and pull-back forces to the drill pipe, drilling the pipe into the drilling surface and controlling the load on the drill bit.

Abstract: An endgate comprising a mounting bracket adapted to be attached to a screed assembly, a pivoting plate adapted to be pivotally attached to the mounting bracket, a sliding plate, a pavement contacting surface and a support adapted to be pivotally moved with the pivoting plate, a means for applying force to the pavement contacting surface disposed between the support and the sliding plate, a first adjustment means adapted to adjust the amount of force applied by the means for applying force to the pavement contacting surface and a second adjustment means adapted to adjust the angle of the pavement contacting surface. A method comprising providing such an endgate, adjusting the angle of the pavement contacting surface and adjusting the amount of force applied by the means for applying force to the pavement contacting surface.

Abstract: Described herein is a material reducing apparatus including a bypass arm and a bypass control member for allowing reduction-resistant objects of a material to bypass the apparatus while avoiding interruption of the operation of the apparatus. Other embodiments may be described and claimed.