Abstract: An exemplary plow includes a moldboard having a wear surface and a blade having a wear surface. A wear resistant coating is applied to at least a portion of at least one of the wear surfaces of the blade and moldboard. The wear resistant coating includes a plurality of scales. Each scale has a leading edge, a trailing edge, a raised portion disposed between the leading edge and the trailing edge, and a peak of the raised portion disposed closer to the trailing edge than the leading edge. The scales of the wear resistant coating are arranged in a plurality of rows, and gaps formed between scales in one row are offset from gaps formed between scales in an adjacent row.

Abstract: An accessory for a power tool includes a mounting portion configured to mate with an oscillating drive member of a power tool and a substantially planar guide portion extending forwardly of the mounting portion to a leading edge and defining a guide plane. A cantilever arm is located between the mounting portion and the leading edge. The cantilever arm extends downwardly from the guide plane and forwardly toward the leading edge. A plurality of teeth extends from a forward portion of the cantilever arm.

Abstract: Presented is a concrete saw for sawing into concrete surfaces to provide expansion slots or joints. The concrete saw has powered front wheels and may optionally have powered rear wheels, so that with improved traction the full potential of the motor can be utilized in faster cutting of concrete.

Abstract: Provided is a single crystal ingot sawing apparatus. The single crystal ingot sawing apparatus includes a wire saw configured to slice an ingot, a roller for configured to drive the wire saw, and a slurry bath for configured to receive slurry supplied onto the wire saw.

Abstract: A tile rebate cutting apparatus has a guide member, which may be formed by a spirit level, forming a linear guide for a rebate cutting tool, the rebate cutting tool incorporating at least one cutting device, the rebate cutting tool being adapted to engage with said guide member to move along a predetermined line determined by the position of the guide member to enable a cut for a rebate to be made in a ceiling tile.

Abstract: A wire saw apparatus having: a wire wound around grooved rollers and axially travels in a reciprocating direction; a nozzle for supplying a slurry; and a work-feeding mechanism feeding a work toward the wire, and slicing into wafers by pressing and feeding the work against the wire traveling in a reciprocating direction while a slurry is supplied to the wire through the nozzle. A work-holding portion holds the work through a pad plate adhered to the work and a work plate, plate-shaped or block-shaped slurry-splash-blocking members are arranged in the direction of a right angle to a row of the wire wound around the grooved rollers below the work-holding portion and on both the wire cut-in side and a wire cut-out side.

Abstract: A grinding tool for natural stone floors, artificial stone floors and industrial floors allows a greatest possible adaptation to the unevennesses of worn natural and artificial stone floors to be restored by using diamond tools that are flexibly attached. The diamond tools are fixed on a mat so that each individual diamond tool can adapt individually to the grooves and unevennesses of an animated natural stone and stone floor. The grinding pattern of a surface machined with said grinding tool corresponds to a newly produced natural stone or artificial stone floor.

Abstract: A dust collector is provided for use with a SLAB saw, especially suited for dry-cutting a channel within pavement or similar exterior surface. The collector includes telescoping upper and lower housings, an open front and lower base to receive a portion of a circular saw into the interior of the housing, and an exhaust outlet, for attaching to a vacuum duct, so as to exhaust dust-laden air from the interior of the housing. The housing includes a pivot mount, pivotally mounting the unit to a slab saw. Also provided is a system, including the dust collector with a circular saw and optionally a vacuum source and dust filter unit or units. Also provided is a method for dry-cutting a trench or channel within pavement or similar hard outside surface, which is particularly suitable for laying of cable such as fiber optic cable. The method may include the step of cutting through the pavement into the underlying hard-packed substrate.

Abstract: The present invention is a wire saw in which a wire is wound around a plurality of grooved rollers, the workpiece is sliced into wafers by causing the wire to travel and pressing the workpiece against the wire while a slurry is supplied to the grooved rollers, the wire saw controlling in such a manner that the workpiece is sliced while a supply temperature of the slurry is increased from the start to the end of slicing the workpiece. As a result, there is provided a wire saw in which Warp of the workpiece to be sliced can be improved by suppressing a decrease in a temperature of the workpiece in the vicinity of the slicing end portion of the workpiece and by making an increase in displacement of the grooved roller during slicing straight, that is, by making the slicing trajectory depicted in the workpiece close to a straight line.

Abstract: A wire saw apparatus having: a wire wound around grooved rollers and axially travels in a reciprocating direction; a nozzle for supplying a slurry; and a work-feeding mechanism feeding a work toward the wire, and slicing into wafers by pressing and feeding the work against the wire traveling in a reciprocating direction while a slurry is supplied to the wire through the nozzle. A work-holding portion holds the work through a pad plate adhered to the work and a work plate, plate-shaped or block-shaped slurry-splash-blocking members are arranged in the direction of a right angle to a row of the wire wound around the grooved rollers below the work-holding portion and on both the wire cut-in side and a wire cut-out side.

Abstract: Disclosed is a laser guidance system for diamond wire stone cutting apparatus. The laser guidance system includes a targeting laser light source that is fitted to one of two wire guide wheels between which the cutting wire extends and travels. A photo sensor with laser beam detectors is attached to the other wire guide wheel. During ideal operation of the cutting apparatus, the laser beam shines through the kerf in the stone being cut. When the kerf is linearly straight, as intended, the laser beam will be clearly detected by the laser beam detectors. When the kerf is not straight, the laser beam will be at least partially obscured across the cutting span, and the laser beam detectors will detect the lack of full intensity and report this to a controller so as to indicate that adjustments are necessary to re-straighten the kerf.

Abstract: A wire slicing system and method for using it include one or more of the following features: arrangements and/or operations that relate to handling the wire; apparatus and methods that relate to wire tensioning; equipment and techniques for manipulating the workpiece; arrangements and/or operations designed for cooling and swarf (debris) removal; controls and/or automation that can be used in conjunction with these features.

Abstract: A cutting tip for a cutting tool used to cut or drill a brittle workpiece such as stone, brick, concrete, or asphalt and a frame saw provided with the cutting tip are disclosed. The swing type cutting tip including abrasive particles has a specific arrangement capable of enhancing the cutting efficiency of the abrasive particles, and thus achieving an enhancement in cutting performance and an increase in lifespan. The cutting tip includes a plurality of abrasive particles to cut a workpiece while swing. At least a part of the abrasive particles are arranged in the form of abrasive particle groups. Each abrasive particle group is constituted by at least two abrasive particles. At least a part of the abrasive particles of the abrasive particle groups are overlapped in a cutting direction.

Abstract: A tile cutting machine includes a tool support assembly having at least one rail with a rail bearing associated therewith for selective movement there along. The rail bearing includes a housing having a bore therethrough. A plurality of slots are located in the housing adjacent the bore. The slots receive an axle pin having a wheel thereon to provide a roller bearing. Portions of the wheels extend into the bore and ride along an outer surface of the rail when it is received in the bore.

Abstract: The instant invention relates to power tools. More specifically, the instant invention is a portable device for shaping, contouring and polishing the edge of a workpiece consisting of a hard material. The device includes a guide-way constructed and arranged to attach directly to the upper surface of the workpiece. A carriage is slidably supported on the guide-way for movement along the length thereof. Secured to the carriage is a motor for rotation of a rotary tool. A pneumatic cylinder is provided to force the rotary tool into the workpiece with a predetermined pressure along a predetermined axis of approach. The carriage is constructed and arranged for vertical positioning and angular rotation of the rotary tool.

Abstract: A floor preparation machine that uses a number of vertical needles positioned in a tight rectangular pattern. The needles vibrate against the floor surface to prepare the floor surface. The needles are driven by a cam and cam follower. As the cam is turned by a motor, a number of ribs repeatedly contact the cam follower, which in turn repeatedly pushes the needles down. Under the top plate that supports the needles, is a rubber form that acts as a “spring” to force the needles up after they have been pushed down by the cam follower. In practice, the system produces a sustained vibration of the needles that breaks the surface to a depth of 1/16 to ? of an inch.

Abstract: A grinding and cutting head adapted to be mounted with a rotating disk of a grinding and cutting machine. The head includes a plate having a first surface which mounts at least one carrier. The carrier includes a vertical slot along one side which extends upwardly from the first surface of the plate. A generally rectangular shaped diamond cutting element is secured in the slot with first and second edges thereof exposed outwardly of the carrier. The structure provides that the one of the first and second edges are exposed in the direction of rotation of the disk.

Abstract: A concrete engraver apparatus including a carrier for use with a hand-held engraver. The hand-held engraver is detachably mounted to the carrier. The carrier has wheels and a handle attached to an enclosure. The enclosure includes a vacuum mount for attaching a vacuum tube to evacuate loosened particles from the enclosure during operation of the hand-held engraver.

Abstract: A wheeled trolley carries various tools across an object to be worked. A track attaches directly to the work and simultaneously isolates the tool from the work. A standard connection to the trolley readily accommodates a variety of diverse tools, using a keyway or the like to ensure accurate and repeatable placement of the tools. A preferred contouring guide allows a tool to be moved through an arc, where the focal point of the arc may be set to produce an infinite variety of custom shapes, bevels or angles of cut. An upper stop is provided which readily sets the break line between surface finish and edge contour. An adjustable tool carriage allows control over both position and force, including preloading a work tool with force. Resilience is incorporated into the apparatus to accommodate diverse hardness and abrasion characteristics, and, in at least one embodiment, to enable the track to accurately follow a warped or sagging work piece.

Abstract: The facing machine for hard-fired ceramic tiles comprises: a structure for supporting, and setting the cutting depth of, at least one pair or rotary rollers at a grooving station, the axis of the rollers lying transverse to the infeed path of the tiles as carried on a belt transport; the rollers comprising a plurality of disks formed with diamond-tipped cutting teeth and a facing station comprising a plurality of vertical-axis grinding wheels with abrasive diamond-tipped tooling; the rollers are carried on a common supporting structure, being adjustable in height to set the tool cutting depth in the tile; the structure being pivotable about a parallel shaft to the work surface in a transverse direction to the feed direction of the surface, and being associated with a device for adjusting and inhibiting the pivotal movement of the structure in order to accommodate varying cutting diameters of the rollers at the station.

Abstract: A method is described for repairing and consolidating a natural stone block (1), with internal fractures and structural discontinuities, in which around the block (1) a coating (2, 3, 4) is applied that wraps the block (1) below and along a vertical perimeter thereof and is higher than the block (1); the coating (2, 3, 4) is spaced from the block (1) and forms the liquid- and gas-tight housing and allows the resin to flow against the block (1). The containment of hydrostatic resin pressures and the control of resin consumptions are performed by an external formwork composed of the coating (2, 3, 4) and of structures (5) to a platform (11) for supporting and transporting the block (1).

Abstract: The invention relates to a surface treated mineral material and a process for producing the same by means of laser treatment and water proofing. A preferred planned use of the invention relates to the surface and wall coverings, made of natural and artificial stones for indoor and outdoor areas, optimized, in particular with respect to wear resistance, stain resistance and slip resistance.

Abstract: A wheeled trolley carries various tools across an object to be worked. A track attaches directly to the work and simultaneously isolates the tool from the work. A standard connection to the trolley readily accommodates a variety of diverse tools, using a keyway or the like to ensure accurate and repeatable placement of the tools. A preferred contouring guide allows a tool to be moved through an arc, where the focal point of the arc may be set to produce an infinite variety of custom shapes, bevels or angles of cut. An adjustable tool carriage allows control over both position and force, including preloading a work tool with force. Resilience is incorporated into the apparatus to accommodate diverse hardness and abrasion characteristics.

Abstract: A portable masonry saw comprises an upper frame assembly; a lower frame assembly secured to the upper frame assembly; a gasoline engine for driving a cutting blade of the saw, secured to a mounting deck; connected to the upper frame assembly; resilient supports on the bottom of the lower frame assembly for securely supporting the saw on the floor of a work area in a stationary position during a cutting operation; a plurality of wheels on the bottom of the lower frame assembly for transporting the apparatus when it is tilted to a and a transport position. The combined vertical height of the upper and lower frame assemblies is such that an operator may readily operate the saw to cut masonry materials and transport the saw on the wheels from a kneeling position. Resilient, vibration damping material is also provided between the upper frame assembly and the mounting deck to facilitate cleaner cuts.

Abstract: A concrete cutting saw and the process of using the concrete cutting saw for making a 45° chamfer cut at an edge of a 90° cut through a concrete wall. The process includes the steps of cutting a 90° cut through a concrete wall with a 90° saw mounted on a trolley riding along a track affixed to the concrete adjacent the cut. The 90° blade is lifted so that it is above the wall surface and a chamfer saw assembly is affixed to the frame. Next, the chamfer saw motor is started and the saw is lowered into a cutting position and the trolley is once again moved along the track, thereby forming a 45° chamfer along the edge of the cut. The apparatus utilizes a chamfer saw frame affixed to the trolley frame after the 90° saw blade has been lifted. The chamfer saw frame is mounted so that it is directly in the position which the 90° saw occupies when the 90° saw blade 16 is in a cutting position.

Abstract: Non-slip floor covering and method of producing a non-slip floor covering. The non-slip floor covering includes a plurality of depressions that are regularly or randomly distributed over a floor covering surface such that the depressions provide a suction effect. The method includes directing pulsed laser beams onto a surface of the floor covering, forming micro-craters having suction effect with the directed pulsed laser beams, and distributing the formed micro-craters over the surface of the floor covering.

Abstract: A fluid jet cutting system structured to make desired quality cuts in a solid material such as stone, granite, steel and/or marble, the system having a positioning assembly which positions the solid material in a cuttable orientation over a fluid reservoir and at least one fluid jet generator which directs a concentrated, high pressure stream of fluid through a nozzle at the solid material such that the solid material is cut by the high pressure stream of fluid. The fluid jet generator further includes a guidance system which passes the nozzle over the solid material in a predetermined cutting path and at a predetermined movement rate such that the high pressure stream of fluid engages and cuts through the solid material in accordance with the cutting path.

Abstract: A saw for cutting an extruded, prestressed concrete slab having a length, a width and a thickness includes a framework assembly movable along the length of the concrete slab. A carriage system is rotatably supported from the framework assembly about a first vertical axis perpendicular to the concrete slab and is slidably mounted on the framework assembly for movement back and forth across the width of the concrete slab. A cutting arrangement including a rotary cutter is suspended from the carriage system over the concrete slab. The cutting arrangement is movable up and down along a second vertical axis substantially parallel to the first vertical axis and is also slidable along the carriage system.

Abstract: An apparatus which is rugged and simple to use, and which can finish shot-crete to an acceptable flatness and finish is disclosed. The efficient mechanical apparatus eliminates the need for skilled hand finishing of concrete or another slurry sprayed on a wall. Labor costs are dramatically reduced to a fraction of generally accepted hand finishing costs. Finished appearance is much improved. The apparatus comprises: a frame; a shearing means which preferably is a revolving drum, to shear the slurry, slidably mounted on a carriage on the frame; carriage motivating and control means for moving the carriage on the frame; and, frame support means for spacing and positioning the frame adjacent to a side of the wall. A preferred aspect of this invention provides for a frame support means which comprises a track mounted on the wall and a tracking member positioned on a top side portion of the frame.

Abstract: A saw for cutting an extruded, prestressed concrete slab having a length, a width and a thickness includes a framework assembly movable along the length of the concrete slab. A carriage system is rotatably supported from the framework assembly about a first vertical axis perpendicular to the concrete slab and is slidably mounted on the framework assembly for movement back and forth across the width of the concrete slab. A cutting arrangement including a rotary cutter is suspended from the carriage system over the concrete slab. The cutting arrangement is movable up and down along a second vertical axis substantially parallel to the first vertical axis and is also slidable along the carriage system.

Abstract: In order to cut soft concrete before it has completely hardened, or about 12 to 18 hours after finishing, a rotating cutting blade and its drive motor are mounted on a wheeled support platform. The blade extends through a slot in the platform, and also through a skid plate depending from the platform, in order to cut the concrete below the skid plate. The slot and the skid plate are sized to support the concrete as it is being cut and to inhibit cracking and chipping of the concrete during cutting. The slot preferably has as little space as possible between the sides of the slot and the adjacent sides of the cutting blade. An extendable handle allows the device to be used beyond the physical reach of the operator.

Abstract: A sanding head for a rotary sanding machine. The sanding head includes a rotatable disk and a plurality of abraders. The disk has a bottom surface and an outer circumferential edge. The bottom surface of the disk has uniformly distributed topographical variations that extend radially inwardly from the outer edge of the disk. A plurality of conformly distributed abraders project from the bottom surface of the disk to contact the surface to be sanded.

Abstract: A tile cutting tool including two opposing cutters integrally and respectively extended from two pivoted blades and disposed in reversed directions, two jaw plates respectively fastened to the cutters at one side, a cutting wheel fastened between the cutters and the jaw plates for making a scratch on the workpiece, the jaw plates including one having a concave middle part and the other having a convex middle part fitting over the concave middle part, whereby the jaw plates are worked against each other to break the workpiece along the scratch being made on the workpiece by the cutting wheel.

Abstract: There is provided a tool for trueing and dressing a variety of grinding wheels to an open and aggressive surface condition, comprising a wheel having a thin layer of diamond particles in a plane oblique to the rotational axis of the tool. There is also provided a method for trueing and dressing a grinding wheel, by engaging the periphery of a rotating grinding wheel with a rotating trueing and dressing tool having a thin layer of diamond particles in a plane oblique to the rotational axis of said tool, with the diamond layer forming a reciprocating point having an effective cutting crossfeed rate relative to the speed of said rotating tool and the angle of said diamond layer.

Abstract: A dressing tool for form dressing of a grinding wheel comprising a cylindrical body 22 having an open groove 32 formed at one end; said open groove 32 adapted for insertion, seating, and clamping of a chisel-edge diamond 36; said chisel-edge diamond being clamped in said open groove in a substantially centered alignment with an axis of said cylindrical body 22, and said chisel-edge diamond simultaneously clamped in said open groove at a negative angle B by a clamping means 42; said centering alignment and negative angle adjustment provided by an associated matching and removable centering gage.

Abstract: In order to cut soft concrete before it has completely hardened, or about 12 to 18 hours after finishing, a rotating cutting blade and its drive motor are mounted on a wheeled support platform. The blade extends through a slot in the platform, and also through a skid plate depending from the platform, in order to cut the concrete below the skid plate. The slot and the skid plate are sized to support the concrete as it is being cut and to inhibit cracking and chipping of the concrete during cutting. The slot preferably has as little space as possible between the sides of the slot and the adjacent sides of the cutting blade. An extendable handle allows the device to be used beyond the physical reach of the operator.