Abstract: A portable machine tool, in particular a hand-held planing machine, includes at least one workpiece positioning unit and at least one insert tool unit. The at least one workpiece positioning unit has at least one workpiece positioning surface. The at least one insert tool unit projects at least partially over the at least one workpiece positioning surface in order to permit processing of workpiece. The portable machine tool further includes at least one adjustment unit that is configured, in at least one state, to set at least one orientation of one or more of the insert tool unit and the workpiece positioning surface relative to one another.

Abstract: A lawnmower with a plurality of blade holding elements in a horizontally rotating blade assembly holds a plurality of blades in a blade channel. The blade assembly is covered by a blade assembly guard that is only open underneath at a point where blades in the blade assembly would cut grass during normal operation. A blade assembly access panel in the upper portion of the blade assembly guard allows blades or a blade assembly to be easily replaced.

Abstract: A lawn mower includes a housing with a baffle that defines an air path to produce a cross-flow. The baffle includes a vent to manipulate air pressures within the housing and facilitate movement of plant clippings. A hand-held device for trimming with a rotary blade assembly may also include a housing that defines an air path to produce a cross-flow. The hand-held trimming device may also a baffle with a vent to facilitate movement of plant clippings.

Abstract: A chemical mechanical polishing system includes a platen, a slurry introduction device and at least one polishing head. The platen is configured to allow a polishing pad to be disposed thereon. The slurry introduction device is configured to supply slurry onto the polishing pad. The polishing head includes a main body and at least one grinding piece. The main body has an accommodation space for accommodating a wafer. The grinding piece is disposed on the main body. The grinding piece has a grinding surface configured to grind against the polishing pad.

Abstract: An edger has a main frame that can be advanced controllably relative to subjacent terrain and a cutting assembly on the main frame. A drive rotates the cutting assembly around a first axis. The cutting assembly is configured to produce a trench in underlying terrain as the cutting assembly is rotated by the drive in operation. The cutting assembly has a perimeter edge with a contour extending over an axial distance. A shielding assembly defines a radially inwardly facing surface that resides radially outside of the perimeter edge of the cutting assembly. The radially inwardly facing surface has a shape that is at least nominally matched to the contour of an axial extent of the perimeter edge of the cutting assembly so that as the cutting assembly rotates the radially inwardly facing surface and perimeter edge of the cutting assembly cooperate to each avoid buildup of foreign matter on the other.

Abstract: Connector inserts and other structures that have a high signal integrity and low insertion loss, are reliable, and are readily manufactured. One example may provide a connector insert formed primarily using a printed circuit board. Contacts on the connector insert may be akin to contacts on a printed circuit board and they may connect to traces having matched impedances on the printed circuit board in order to improve signal integrity and reduce insertion loss. The printed circuit board may be manufactured in a manner for increased reliability. Plating, solder block, and other manufacturing steps that are native to printed circuit board manufacturing may be employed to improve manufacturability. Specialized tools that may provide a chamfered edge on the connector inserts may be employed.

Abstract: A method and a plant are provided for calibrating surfaces of stone materials, suitable for working at least one slab (1) composed of an entry side and an exit side and of two parallel side edges; the slab (1) is pushed along the side edges through a conveyor belt and is subjected to the cutting action imparted by multiple tools equipped with a peripheral speed compatible with optimum cutting parameters for the stone material; the tools move along a predefined path along the surface of the slab (1), and the motion imparted by the conveyor belt and the predefined tool path is combined in order to completely cover the surface of the slab (1); the contact between the slab (1) and the tools is ensured simultaneously at least in one point on each of the two side edges of the slab (1).

Abstract: A universal dust shroud is mountable to many high speed gas powered concrete cutting saws while remaining strong and stable. The dust shroud is adjustable to properly fit the saw and effectively collect dust and debris.

Abstract: A method of polishing a marble terrazzo floor, including shaving the surface with a first plurality of first diamond abrasive particles, and shaving the surface with a second plurality of second diamond abrasive particles. The first diamond abrasive particles are MBG-type mesh crystals characterized by a first average size, wherein the second diamond abrasive particles MBG-type mesh crystals characterized by a second, smaller average size, and wherein the diamond abrasive particles substantially laterally impact surface protrusions.

Abstract: An epoxy porcelain tile surface including a plurality of spaced, substantially flat substantially smooth porcelain tiles and epoxy grouting substantially filling the spaces between the porcelain tiles. The plurality of spaced, substantially flat substantially smooth porcelain tiles are substantially flush with one another and substantially flush with the epoxy grouting.

Abstract: A device (1) for processing a slab of stone or stone-like material, comprises a support table (2), adapted for receiving slab, and a fixed guide rail (3) running in a first direction (X) along a side of the support table. The device further comprises an arm (4), extending in a cantilevered manner, in a second direction (Y) from the guide rail and across at least a portion of the support table. The arm is displaceable relative the guide rail in a third direction (Z). A method for processing a slab of stone or stone-like material is also disclosed.

Abstract: The invention concerns a carrier plate (2) holding an abrading element, for detachable mounting on a rotatably mounted abrading plate (1) driven during use, for abrading stone or concrete floors, which carrier plate (2) has sides (2a, 2b) which form an acute angle with each other. The sides (2a, 2b) have flanges (2a1, 2b1) which are formed for surrounding engagement with a shoulder (1a) arranged on the abrading plate (1) so that the carrier plate (2) can be fixed on the abrading plate (1) with an engagement based on form and friction.

Abstract: The present invention relates to a method for manufacturing silicon articles for a plasma processing apparatus. The present invention provides a method for manufacturing silicon articles, comprising: preparing a silicon ingot; forming a hollow silicon cylinder and a silicon core cylinder having a diameter less than that of the silicon ingot by coring the silicon ingot; forming a silicon annular plate having a central opening by cutting the hollow silicon cylinder and forming a silicon electrode plate by cutting the silicon core cylinder; and forming a silicon ring by processing the silicon annular plate and forming a silicon electrode by processing the silicon electrode plate. According to the present invention, a hollow silicon cylinder and a silicon core cylinder are manufactured by coring a cylindrical silicon ingot before the silicon ingot is sliced.

Abstract: A tool for creating uniform thickness around the edge of a stone slab for seaming or profiling thereof. The tool is used with portable routers or other handheld machines. A spindle side spacer, bearing assembly and blade side spacer establish a fixed depth at which the cutting blade is set from the base of the machine. This fixed depth creates a uniform thickness when the tool is used on the edge of a stone slab.

Abstract: A method and an apparatus 10 for cutting an object 64, such as a grinding wheel. Particularly, the object 64 is placed in a horizontal manner and concomitantly rotated with the cutter 14 during the entire cutting operation. The rotation occurs are a relatively high speed and such concomitant rotation and such horizontal placement allows the cutting to occur in a desired manner.

Abstract: A scarifier assembly including a generally rectangular shaped case with a hollow interior, a resilient generally rectangular pad located in the hollow interior of the case, and a removable work performing surface insert having work surfaces for grinding, cutting or abrading materials. The work performing surface insert includes a generally rectangular shaped flat mounting plate member having two oppositely located end portions with connected projecting securing means for removably securing the work performing surface insert in the case. The case also has two end portions and these end portions that have securing means for cooperating with the projecting securing means on the end portions of the mounting plate member for securing the work performing surface insert to the case. The mounting plate member has an upper surface and a lower surface with a series of elongated mounting blocks having work performing surfaces firmly secured to the upper surface.

Abstract: A cutting cup for a sphere making machine. The cutting cup includes a cylindrical ring having an outer wall, an inner wall, a bottom wall, and a top wall, the top wall having at least one beveled facet angled downwardly from the outer wall to the inner wall. A cutting element is attached to each of the beveled facets. Each of the cutting elements has a cutting edge adapted to at least partially contact a workpiece to be formed into a sphere. A mounting member is attached to the bottom wall of the cylindrical ring for attaching the cutting cup to the spindle of a sphere making machine.

Abstract: A method to create blocks having a weathered and aged look by modifying the blocks before they are cured. Green blocks exiting a block forming machine are conveyed along a path past brush elements which scrub block mix from the upper longitudinal corners of the formed, uncured blocks. The blocks are also passed longitudinally over tooth elements which irregularly remove block mix from the lower longitudinal corners of the green blocks. The modified green blocks are moved to a kiln for curing.

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: An inline apparatus and method for processing an unworked masonry article to produce a decorative masonry article having pitched face edges located in a non-parallel relationship to each other. The inline apparatus includes a conveyor line for carrying the masonry article, a pitching machine for pitching at least one of the frontal face edges of the masonry article, a flipping machine for repositioning the masonry article while the masonry article is in the conveying line and a second pitching machine for processing at least one additional face edge which is located in a non-parallel condition to the face edge of masonry article that has been pitched.

Abstract: A method and apparatus for polishing and planarizing workpieces such as semiconductor wafers is presented. Conditioning rings, which are used to condition polishing pads used in the planarization or polishing of semiconductor wafers, are shown which utilize brazed diamond technology in association with a coating of a titanium nitride containing composition or a thin film diamond deposition in order to reduce the fracturing and loss of cutting elements bonded to the conditioning ring.

Abstract: A method and apparatus for polishing and planarizing workpieces such as semiconductor wafers is presented. Conditioning rings, which are used to condition polishing pads used in the planarization or polishing of semiconductor wafers, are shown which utilize brazed diamond technology in association with a coating of a titanium nitride containing composition or a thin film diamond deposition in order to reduce the fracturing and loss of cutting elements bonded to the conditioning ring.

Abstract: A method and apparatus for polishing and planarizing workpieces such as semiconductor wafers is presented. Conditioning rings, which are used to condition polishing pads used in the planarization or polishing of semiconductor wafers, are shown which utilize brazed diamond technology in association with a coating of a titanium nitride containing composition or a thin film diamond deposition in order to reduce the fracturing and loss of cutting elements bonded to the conditioning ring.

Abstract: The present disclosure is summarized as an improved cutting tooth for mounting on a stump cutting wheel driven by a suitable power plant. The tooth itself includes a long root to enable it to be clamped on the cutting wheel. When appropriately clamped, it is held with an extending neck terminating in a planar face. The face is constructed with an improved PDC hard surface layer. This is attached by a suitable WC-Co sintered alloy which joins the PDC layer to the tooth. This enables more certain anchoring of the PDC layer to the tooth. This enables more certain anchoring of the PDC face so that it does not break or flake during use and operation.

Abstract: A photo-reactive grinding wheel 1 is irradiated with light by a light irradiation device 2 which is provided opposite to the grinding wheel, to bring about a chemical reaction and change in property, and dissolved/removed by a solution 4. Simultaneously, a workpiece 5 is processed by the photo-reactive grinding wheel 1. Thus, processing can be performed without causing clogging in the grinding wheel of a resin bond containing fine abrasive grains, high-grade surface roughness can be realized, and processing efficiency is relatively high. The controllability of the dressing is excellent, automation of dressing and in-process dressing can also be realized, a system which contains no metal ion in the whole processing can be designed, an expensive device is not required, and handling is easy.

Abstract: A radius dresser is provided including a base removably secured to a recipient surface. Also included is a cutting tip holder rotatable and radially slidable with respect to the base. The holder is selectively fixed with respect to the base. The holder has a cutting tip situated along a radius which remains along a direction in which the cutting tip holder is slidable.

Abstract: A conditioning ring having cutting elements brazed-bonded to the bottom surface of the ring and suitably adopted for conditioning a workpiece polishing pad by contact with the pad. The conditioning ring further includes a flange extending about the bottom periphery of the ring with the cutting elements being attached to the bottom surface of the flange. The flange includes cutout portions for permitting material to escape from the interior of the ring. The cutting elements are distributed substantially uniformly across the bottom surface of the flange and the elements are brazed-bonded to the flange with a braised metal alloy, creating an extremely strong bond between the cutting elements and the flange surface.

Abstract: An apparatus for determining the angle and height of a rotary power saw blade by sensing the angle of the saw blade from the vertical and the sine of the angle with respect to a horizontal reference as the blade height is changed. A display unit converts the sensor output to a visual indication.

Abstract: A scarifier case for mounting on disc rotor grinders, wherein the case is designed to snap attach and quick disconnect selected grinder inserts in the case without requiring the case to be removed from the rotor disc to change a selected grinder insert.

Abstract: Apparatus for modifying building blocks which vary somewhat in size to provide spaced-apart depressions in the top and bottom surfaces thereof with the bottoms of the depression in the bottom surface being at a uniform distance from the top surface of the blocks comprises groove cutting and associated block drilling means. The drilling includes movable plates carrying a plurality of drills, means to move one of the plates before the other, and means to position the blocks for proper drilling. Also, a plurality of cutters are used to speed the cutting operation.

Abstract: Apparatus for milling building blocks comprise a first arrangement for milling said blocks at a first side thereof, and a second arrangement for milling said blocks at a second side thereof. Apparatus are located between the mentioned first and second arrangements for accelerating the blocks after their milling at the first side. Apparatus further are located between one of the mentioned first and second arrangements and the accelerating apparatus, for turning the blocks for their milling at a second side thereof by 180.degree. about an axis extending parallel to the direction of transportation of the blocks.

Abstract: Unfinished bricks are placed lengthwise on the inlet end of a first horizontal frame section, and are pushed one after another toward a discharge station at the opposite end of the section by a plurality of spaced flight bars, which are carried by an endless chain that travels beneath an elongate slot in the center of the first frame section. Four separate grinding operations are performed on each brick as it travels toward the discharge station. At the first station opposite sides of the brick are ground to provide the desired brick width; at the second station two parallel slots are ground in its bottom surface; at the third station a radius groove is cut in one side of each of the two bottom slots; and at the fourth station the top of the brick is ground or rounded off at each end.

Abstract: Disclosed is a method and machine for digging a ditch for use in, for example, duct disposition therein. In the floors and walls of a concrete structure, for example, three preparatory ditches or channels are dug by means of rotary blades. By inserting a breaking rod into a central one of the channels and causing it to vibrate substantially perpendicular to the channel to strike partition walls between the channels, the partition walls are readily broken or fractured, at which time the outermost channels serve as escapement spaces for permitting reception therein of the partition walls about to be bent or broken. Thereafter, the resultant partition wall pieces are removed, whereby a desired form of ditch is obtained. The partition wall fracturing steps may be carried out simultaneously with the channel digging or cutting step, or may alternatively be carried out independently after completion of the latter step.