Abstract: Embodiments of an automated fraud detection system are disclosed that can detect user accounts that are engaging in unauthorized activities within a game application. The fraud detection system can provide an automated system that identifies parasitic accounts. The fraud detection system may identify patterns using machine learning based on characteristics, such as gameplay and transaction characteristics, associated with the parasitic user accounts. The fraud detection system may generate a model that can be applied to existing accounts within the game in order to automatically identify users that are engaging in unauthorized activities. The fraud detection system may automatically identify these parasitic accounts and implement appropriate actions to prevent the accounts from impacting legitimate users within the game application.

Abstract: A collapsible stent for an implantable prosthetic valve incorporates leaflet-supporting members having relatively large surface area in comparison to other members defining the remainder of the stent. The leaflet-supporting members may have openings extending through them. The valve leaflets may be attached to the stent so that an attached edge of each leaflet extends along the leaflet-supporting members and is attached to the members by polymer integral with the leaflet overlying the leaflet supporting members and extending into the openings of the leaflet supporting members. The secure attachment resists stress on the leaflets.

Abstract: A sleeve for forming a channel through a concrete slab is described herein. The sleeve includes a sleeve body with top and bottom ends extending along a longitudinal axis, wherein the top end is wider than the bottom end. The sleeve includes an attachment flange attached to the bottom end that extends laterally outward with respect to the longitudinal axis. The attachment flange may be secured to a concrete form. An alternative sleeve has an attachment mechanism protruding from the first end of the sleeve body for facilitating the attachment of the sleeve body to a concrete form. In some embodiments, the sleeve can also include a removal mechanism disposed at the second end of the sleeve body to facilitate removal of the sleeve body from the concrete slab. Various sleeve configurations are described, some of which are reusable and some of which are one-time use only.

Abstract: A packaging element (2, 3) has two shells (21, 22, 31, 32), each shell having a margin (210, 220) defining an access opening giving access to the inside of the shell, said packaging element (2, 3) having at least a “closed” configuration in which the shells form a chamber that is substantially closed and that is suitable for receiving an article, such as a medical implant. The packaging element (2, 3) further has a sealing strip (4) that extends, outside the shells (21, 22, 31, 32), over the entire length of the margins (210, 220) of the shells of the packaging element, and from one margin (210, 220) of the shell to the other margin (220, 210) of the shell in such a manner as to seal the chamber defined by the two shells. An assembly has two packaging elements received one inside the other, with a corresponding sealing method.

Abstract: A black ice generating device for generating black ice on a specimen, with dimensions of length X, width Y, and height Z, to be used for experiments on black ice, comprising: a housing; a specimen loading part, for accommodating at least a height h of a water layer, wherein the specimen loading part is formed in the housing and configured as a depression with dimensions of at least length X, at least width Y, and at least height Z+h; and one or more strap loading parts formed with recesses of a depth D1 and a depth D2 respectively from a first side surface of the depression and a second side surface thereof, wherein the recesses are to accommodate one or more straps, and wherein the depth D1 and the depth D2 are larger than a size of a cross-section of the straps.

Abstract: Processes for refurbishing a spent sputtering target with a non-circular shape are disclosed. In one form, the processes include the steps of receiving one or more spent sputtering targets, inspecting and weighing the spent sputtering targets, removing any contaminants or other surface impurities from the spent sputtering target surfaces, preparing a hot press die with spacers, disposing the spent sputtering targets in the hot press die, the spacers used to center the spent sputtering targets therein, loading fresh metal refilling powder into the die to account for depleted regions of the spent sputtering targets to produce a powder-filled sputtering target, and applying sufficient heat and force to the filled sputtering target to produce a refurbished sputtering target with homogeneous composition and sufficient adhesion strength.

Abstract: A packaging assembly for transporting and storing ice includes a tray having a base portion and a plurality of compartments formed on the base portion configured to receive at least one piece of ice, optionally manufactured by a multi-day freeze process followed by shaping and three-dimensional machine cutting. Each compartment includes an opening formed on the base portion of the packaging assembly, a bottom portion substantially parallel to the base portion, at least one sidewall having a first end and a second end, the at least one sidewall connecting the base portion to the bottom portion, and at least one volume strip formed in a respective at least one sidewall. The plurality of compartments are formed as at least one of a circular frustum, a square frustum, and a rectangle frustum.

Abstract: A device for multi-serving capacity ice cream bar includes ice cream bar molds 12, a canister that receives the ice cream bar molds, a freezing fluid medium filled in the canister, an agitating device that agitates the freezing fluid medium by rotating the canister cover, a mold monitoring device that monitors freezing status of each mold, and a bar mold status display. A method of making a plurality of ice cream bars comprises steps of filling ingredients into a plurality of ice cream bar molds, placing the ice cream bar molds in a canister cover of a canister, in which freezing fluid medium is filled, and agitating the freezing medium by rotating the canister cover.

Abstract: A package substrate may include an insulating substrate, internal circuits and a warpage-suppressing member. The insulating substrate may have a plurality of mount regions in which semiconductor chips may be mounted, and a peripheral region. The internal circuits may be arranged in the mount regions. The warpage-suppressing member is different from the semiconductor chips and may be arranged in at least one of the mount regions to suppress a warpage of the insulating substrate. Thus, warpage of the package substrate may be suppressed during a reflow process.

Abstract: A false formwork system (40) includes a plurality of sideforms (17) which are able to be interconnected to define a perimeter of an opening in a panel to be cast. A support structure (24) is carried by the sideforms (17) for supporting components (26) used to mold a false skim coat overlying the opening when the panel is cast. An opening demarcation portion (21) is carried by each of at least some of the sideforms (17). Each opening demarcation portion (21) defines a zone of weakness to demarcate the skim coat of the cast panel from a remainder of the panel and to facilitate removal of the skim coat from the remainder of the panel by breakage along the zone of weakness.

Abstract: It is aimed to provide a resin product manufacturing system, a manufacturing method, a resin molding machine and a mold capable of easily manufacturing a burr-free finished product in injection molding or the like. In a resin product manufacturing system for forming an intermediate product by a resin molding machine and manufacturing a finished product by deburring the intermediate product by a deburring device, the resin molding machine is provided with a mold including a storing portion for storing an overflow resin (burr) formed at a site corresponding to the entire periphery of an intermediate product in a matching surface, the intermediate product having the overflow resin (burr) integrally formed over the entire periphery thereof is formed by the mold, and the deburring device cuts the overflow resin (burr) integrally formed over the entire periphery of the intermediate product together with the burr to manufacture a finished product.

Abstract: In a process for producing half-shells (2) which are made from a dough for bakery products and are characterized by an annular orifice rim (6) with a finished surface, by producing a wafer sheet (1) comprising a plurality of half-shells (2) connected to one another by an interconnecting wall (4), by forming and baking said dough in a mold with the use of a mold formed by two complementary plates (12, 14) having respective front surfaces which, as a result of the fitting together of the two plates, can define a forming cavity having a shape generally corresponding to that of said wafer sheet (1), a mold is used wherein the front forming surface of at least one of said plates has shaped portions (26) which project towards the front surface of the other plate (12) and which can define, in the dough that is subjected to baking in the forming cavity, a notch (24) in the interconnecting wall (4) adjacent each half-shell (2), wherein the plates can be fitted together in an initial position in which the forming cavit

Abstract: The tire (10B) comprises a tread (12) including a running layer (14) which is intended to come into contact with the ground when the tire (10B) rolls on the ground, and a sublayer (16) located radially inwards from the running layer (14). The tread (12) comprises at least one fluid passage (22) between the sublayer (16) and the air surrounding the tire (10B). The sublayer (16) comprises a cellular material. The fluid passage (22) comprises an element chosen from a groove (20) and a cut (26), formed in the running layer (14) and extended by at least one well (28) acting as a radial extension of the element, formed between the groove (20) and/or the cut (26) and the sublayer (16). Each well (28) forms a localized part of the fluid passage (22).

Abstract: A wax pattern for use in making a golf club head has a shell wall which defines a hollow region and which includes a front portion, a rear displacement portion and a dividing line extending between the front and rear displacement portions. The wax pattern has a profile conforming to that of the golf club head. A metal blank having the same shape and size as the wax pattern is made by using the wax pattern. The blank is then cut along a dividing line to remove a rear displacement portion thereof so as to form a metal part for making the golf club head.

Abstract: A method for producing purpose-made blocks (10). According to said method, several purpose-made blocks (10) are produced in a mold (37) in such a way that the blocks (10) are arranged in at least one row (28) of purpose-made blocks in the mold (37) and respective adjacent blocks (10) of a block row (28) are interconnected in a zone of at least one predetermined breaking point (30). The purpose-made blocks (10) of a block row (28) are removed together from the mold (37) and the blocks (10) are separated from one another in the zone of the predetermined breaking point (30). According to the invention, adjacent purpose-made blocks (10) of one or each block row (28) are produced in the mold (37) in such a way that axes of the purpose-made blocks (10) deviate at least partially in the longitudinal direction (32) of each block row (28) from the longitudinal axis (32) of each block row (28) and that lateral pressure is exerted on the or each molded block row (28) to separate the predetermined breaking points (30).

Abstract: Improved dip coating methods and mandrels for forming polymer leaflets and valve prostheses generally involve one or more features on the mandrel that facilitate the processing. The mandrel has a top surface and an outer surface comprising a plurality of ridges and contoured surfaces extending to the ridges. An edge on the mandrel separates the top surface and the contoured surfaces, with the mandrel edge corresponding to the free edge of the leaflet. In preferred embodiments, the edge separating the top surface from the contoured surfaces is sharp. The polymer formed on the top surface can be efficiently separated from the remaining portions of the polymer structure to form the free edges of the leaflets.

Abstract: A form for manufacturing concrete blocks for constructing freestanding walls. The form includes a base and four side panels which are mounted on the base to pivot between a first position for casting a block and a second position for removing a cast block from the form. An insert is secured to the base for forming one end surface on the block and inserts are attached to the side panels for forming sides, top and bottom surfaces of the block. The inserts which form exposed sides of the block are textured to simulate natural stone. The inserts which form the top and bottom of the blocks form an interlocking connection which prevents stacked blocks from moving in a horizontal plane. Optionally, inserts used to form the top surface of blocks which will define the top of the wall may form a trough which is sufficiently deep to receive soil and plants.

Abstract: A method is disclosed for the induction of a suitable band gap and electron emissive properties into a substance, in which the substrate is provided with a surface structure corresponding to the interference of electron waves. Lithographic or similar techniques are used, either directly onto a metal mounted on the substrate, or onto a mold which then is used to impress the metal. In a preferred embodiment, a trench or series of nano-sized trenches are formed in the metal.

Abstract: The present invention provides an improved ice tray that forms narrow ice pieces that easily fit through the opening of portable beverage containers such as standard cans, bottles, and cartons, thereby saving the costs and energy associated with refrigeration. The ice tray has one or more narrow cavities for receiving water. A protrusion in the cavity produces a notch in the ice so that the ice may be broken into smaller pieces and conveniently dropped into the beverage containers. Multiple ice trays may be stacked on top of each other.

Abstract: A form for manufacturing concrete retaining wall blocks. The blocks are cast in the form with a front face of the block down. A resilient face insert at the bottom of the form imparts an ornamental appearance to the front face of the block. The form has four sides which pivot at their bottom between a closed position for casting a block and an open position which permits removing the cast block from the form. Preferably, the cast block has parallel top and bottom surfaces and angled sides. Sides of the form form a groove in the bottom of the block which extends parallel to and spaced from the front face and form knobs which project above the top of the block for alignment with a grooves on adjacent stacked blocks forming a retaining wall. The block is formed with two lifting points, one for removal of the block from the form and one for moving the block when constructing a retaining wall.

Abstract: The present invention is directed to a process for manufacturing concrete dual blocks where the concrete block is separated into two individual blocks during the manufacturing process without an additional separating step after curing.

Abstract: A form for manufacturing concrete retaining wall blocks. The blocks are cast in the form with a front face of the block down. A resilient face insert at the bottom of the form imparts an ornamental appearance to the front face of the block. The form has four sides which pivot at their bottom between a closed position for casting a block and an open position which permits removing the cast block from the form. Preferably, the cast block has parallel top and bottom surfaces and angled sides. Sides of the form form a groove in the bottom of the block which extends parallel to and spaced from the front face and form knobs which project above the top of the block for alignment with a grooves on adjacent stacked blocks forming a retaining wall. The block is formed with two lifting points, one for removal of the block from the form and one for moving the block when constructing a retaining wall.

Abstract: The present invention relates to a process for the production of hollow plastic articles, said process comprising the following steps:

Abstract: A method of preparing stackable block structures from raw concrete mixes and block structures prepared in accordance with the method, wherein the process utilizes a mold box configured to form the block on its side surface. The mold box is arranged to travel along the surface of a moving conveyor belt, with the box having an open top, an open bottom, and lateral side panels supported on the conveyor belt surface, and with the panels having core bar receiving openings formed therein. The core bars are introduced and removed from the mold box along an axis which is parallel to the surface of the core bars and to the motion axis of the conveyor belt, and with the core bars configuring one of the two opposed side surfaces of the stackable block. A reciprocating top shoe arranged for reciprocatory up and down motion engages and configures the top surface of the raw concrete mix held within the walls of the mold box.

Abstract: The present invention is directed to a process for manufacturing concrete dual blocks where the concrete block is separated into two individual blocks during the manufacturing process without an additional separating step after curing.

Abstract: In a brick molding apparatus, the improvement includes a mechanical drive assembly for indexing in predetermined incremental movements a mold adapted to receive and shape clay slugs into green bricks. The drive assembly includes a conveyor for carrying the mold in the brick molding apparatus. A drive gear is mounted on a drive shaft and defines a plurality of circumferentially-spaced teeth and radially-extending slots. The drive shaft is operatively connected to the conveyor. A drive lug is adapted for movement into and out of a selected one of the plurality of slots formed in the drive gear. A gear actuator is adapted for moving the drive lug in a rotational direction relative to the drive shaft. When the drive lug is positioned in the selected slot of the drive gear, the gear actuator causes rotation of the drive gear and drive shaft thereby indexing the conveyor and mold.

Abstract: Laminae suitable for use in a mold suitable for use in forming retroreflective sheeting and methods of making such laminae are disclosed. A representative lamina includes a single row of geometric structures disposed on the working surface. Each geometric structure includes three faces arranged as a cube corner element and at least one additional face. A set of parallel grooves is included, each groove having one of the three faces of one geometric structure and the at least one additional face of an adjacent geometric structure as groove side surfaces.

Abstract: A concrete masonry unit having a top surface with a splitting pattern formed therein. The splitting pattern has a splitting groove which intersects at least one recessed region formed in the top surface.

Abstract: A concrete slab for forming blocks for a retaining wall comprises a prism having parallel top and bottom surfaces, and opposed parallel side walls, and end walls, the prism has an X axis in the longitudinal direction extending between the end walls, a Y axis in the width direction extending between the side walls, and a Z axis perpendicular to the X and Y axes extending between the top and bottom surfaces. A first dividing line extends parallel to the X axis from one end wall to the other end wall in order to define a separating plane bisecting the prism. At least a pair of dividing lines extend parallel to the Y axis of the prism from the first dividing line to each of the opposite side walls, wherein the second dividing lines are parallel to each other but offset therefrom, whereby upon separating the slab along the first and second dividing lines, at least four blocks in the form of rectilinear prisms having different dimensions in the X axis will be formed.

Abstract: An arcuate end form void for providing a space between a poured concrete structure and an underlying expansive soil adjacent a round pier is formed of corrugated paper to provide temporary support of wet concrete, and conforms to the pier radius to prevent passage of wet concrete between the pier and form void.

Abstract: An apparatus for making a mold for forming positive models identical to a positive master has upper and lower mold shells having confronting and contiguous rims lying in respective planes. The shells are dimensioned when juxtaposed to spacedly contain the master. A clamp is engageable with the shells generally at the rims to hold the shells together with the plane of their rims spaced apart.

Abstract: Process for producing shaped bodies from pasty foodstuff which is arranged between two foil layers and is then introduced into a mold composed of two dies, wherein the two foil layers protrude laterally beyond the dies. The two dies are then moved toward each other, so that the foodstuff is plastically deformed and any excess foodstuff quantity is squeezed out of the gap between the two dies. After opening of the dies, the foodstuff is removed by means of the protruding portions of the foil layers and is subsequently cooled to solidification temperature. The excess foodstuff quantity located outside of the contour of the shaped body formed by the foodstuff is then broken off from the shaped body and the two foil layers are removed.

Abstract: An improved archery bow limb fabricated by inserting a moldable slug having a plurality of longitudinally oriented resin impregnated glass fiber filaments into a bow limb profiling compression mold. The mold includes a female cavity mold and a male mold. The female mold having a raised portion defining a limb tip slot area so that when the mold is closed a depressed tip slot impression is formed in the slug. The raised portion may include peripherally thereabout, reinforcing filaments for strengthening the slot edge defined by said periphery. After the slug has been cured, the material remaining in the base of the depression is removed thereby providing a bow limb having a pair of forks for supporting an eccentric therebetween. The resulting bow limb being fabricated with a reduced amount of severed longitudinal filaments.

Abstract: An apparatus for molding a tamper evident closure having a top, an annular skirt depending from the top, and a breakaway band secured to an underside of the skirt by a plurality of bridges includes a mold frame, a cavity portion releasably secured to the frame and configured for forming an outer surface of the closure, a core portion nestable into the cavity portion and mounted on the frame for reciprocal axial movement relative to the cavity portion, a slide portion mounted to the frame for reciprocal movement transverse to the axial movement of the core portion between a closed position and an open position, and a stripper device located on the frame for disengaging molded closures retained on the slide portion as the slide portion moves from the closed position to the open position.

Abstract: An ice cube tray consisting of an inner tray divided lengthwise and breadthwise into a plurality of pockets with open tops, and an outer tray divided into a configuration that fits the shape of the inner tray forming a space between the outer bottom of the inner tray and the inner bottom of the outer tray, with openings provided on the bottom of the inner tray so as to make transparent ice in the pockets, and additionally providing slightly curved protruding points on the bottom of the outer tray to allow for expansion.

Abstract: The mold is comprised of a bottom (4) wherein there are provided grooves (8) extending transversely between containment sidewalls (6); said sidewalls (6) have windows (14) which are aligned with the grooves (8) which preferably are delimited by the faces (10) of fillets (12) arranged in parallel, facing each other and fixed to the bottom (4) of the mold.

Abstract: Indicia creating patterns are placed in a mold assembly used for making seals. The molded seal body includes trimming entry surface indicia and trimming exit surface indicia to provide visual targets to use when setting up equipment to trim a waste portion from the finished seal . The indicia are sized such that a seal is considered properly trimmed if a portion, but not the entirety of the entry surface indicia and exit surface indicia remain on the finished seal at each point of trimming around the circumference of the seal body. Thus, one can quickly determine if a seal is properly trimmed.

Abstract: An apparatus for forming curing envelopes which apparatus enables the use of a conventional inner tube mold for making a curing envelope preform in the form of an envelope tube which may have a portion thereof easily removed to provide a curing envelope suitable for use in a tire retreading process. A curing envelope is made by placing an annular tube of uncured envelope material in a curing mold having a center core and a mold insert installed therein. The insert includes a pair of coaxial annular rings projecting radially outwardly from the center core and connecting straps for maintaining the axial spacing between the rings. The mold is closed and heat and internal pressure are applied to the envelope tube for curing the envelope tube and urging the tube against the interior cavity surface with the annular rings penetrating into the inner wall of the tube for forming therein corresponding annular grooves.

Abstract: An improved sidewalk grooving tool usable by a standing worker but having foldable handles for flat storage and transport.

Abstract: A mold for use in producing a hollow tube component for a dispensing applicator. The mold has a main body portion that defines a forward end from which extends a sloped shoulder portion, a neck portion, and a stem element. Between the stem element and the neck portion, there is a provided a re-entrant surface which forms a sharp edge and an angle with respect to the outer, main surface of the neck portion. The mold is used in a dip-molding process for producing a dispensing container that has a frangible portion that is broken away during first use, which frangible portion is formed by the re-entrant surface.

Abstract: An apparatus and method for forming curing envelopes which apparatus and method enable the use of a conventional inner tube mold for making a curing envelope perform in the form of an envelope tube which may have a portion thereof easily removed to provide a curing envelope suitable for use in a tire retreading process. A curing envelope is made by placing an annular tube of uncured envelope material in a curing mold having a center core and a mold insert installed therein. The insert includes a pair of coaxial annular rings projecting radially outwardly from the center core and connecting straps for maintaining the axial spacing between the rings. The mold is closed and heat and internal pressure are applied to the envelope tube for curing the envelope tube and urging the tube against the interior cavity surface with the annular rings penetrating into the inner wall of the tube for forming therein corresponding annular grooves.

Abstract: Concrete blocks are formed in a mold having a cavity into which block-forming material is placed. A portion of the material is retained in place relative to the cavity walls when the block is removed from the cavity, and the face of the block forming material adjacent a surface of the material retained in place is provided with a split-type appearance to its surface. A block having a rough surface closely resembling a split surface can thus be attained without the expense and time involved in conventional block splitting. The assembly can be constructed to form blocks having non-planar split-type surfaces. Additionally, split-type surfaces can be formed on an interior surface of a composite block module adapted for splitting along a splitting plane, to attain a block providing a split-type appearance along two spaced planes.

Abstract: An improved archery bow limb fabricated by inserting a moldable slug having a plurality of longitudinally oriented resin impregnated fiber glass filaments into a bow limb profiling compression mold. The mold includes a female cavity mold and a male mold. The female mold having a raised portion defining a limb tip slot impression area so that when the mold is closed a depressed tip slot is formed in the slug. The raised portion may include peripherally thereabout, reinforcing filaments for strengthening the slot edge defined by said periphery. After the slug has been cured, the material remaining in the base of the depression is removed thereby providing a bow limb having a pair of forks for supporting an eccentric therebetweren. The resulting bow limb being fabricated with a reduced amount of severed longitudinal filaments.

Abstract: A method and apparatus for forming a curb section of a predetermined length sub-divided into modules by transverse grooves which give the appearance of shorter blocks and provide for fracturing the curb section at those locations. Each module of the curb section includes a rearward fastening projection having a vertical bore for passing a nail to engage the curb section to pavement or other base. Such linear mold sections are all that are required when a curve is dictated. The mold sections are sub-divided into the modules to form the curve. The apparatus includes an open frame moving vertically against a platform and mold shoes for pressing down on the concrete when poured in the mold frame, including plugs for forming the tops of the fastening projections. According to the method, the plugs are removed after the mold frame is lifted, and then the shoes are removed to leave the formed curb sections on the bottom wall.

Abstract: High aspect ratio boxes and sleeves are molded inside out by molding the outer surfaces of box covers and bottoms and sleeve sides in closely spaced parallel relationship, with side walls extending outward. Backs are joined to the covers and the bottoms by living hinges. The inside out molding process and apparatus reduce effective mold areas and mold forces, providing capacities to mold more boxes at a time in existing press facilities.

Abstract: The invention includes block molds and manufacturing processes as well as a composite masonry block comprising a block body having an irregular trapezoidal shape and comprising a front surface and a back surface, an upper surface and a lower surface, and first and second sidewalls. Both the first and second sidewalls have a first and second part, the sidewall first part extends from the block front surface towards the block back surface at an angle of no greater than ninety degrees in relationship to the block front surface, the sidewall second part surfaces adjoins and lies between the sidewall first parts and the block back surface. The block also has a flange extending from the block back surface past the height of the block. Also disclosed are landscaping structures such as a retaining wall comprising a plurality of the composite masonry blocks of the present invention.

Abstract: Apparatus for producing shrimp-shaped food products and a food product produced by the apparatus. The apparatus includes a split mold having a cavity shaped as a shelled-shrimp-shaped product. The mold has an injection opening for injecting a minced fish material into the cavity, the injection opening extending from the root or base of the shrimp's head to the shrimp's back portion and being oriented upwardly. After injecting the minced fish meat into the cavity, a V-shaped device is lowered towards the opening of the mold to make a longitudinal groove in the minced fish material. The mold and the material are heated up to produce a shrimp-shaped food product. The apparatus may further include a cover mold having a supply channel formed in it for moving the material to the injection opening. The V-shaped device may be incorporated in the cover mold.

Abstract: A pipe seal assembly for a poured concrete tank or box in an on-site waste disposal system including a seal member having an inclined inner wiper flange which releasably retains a mandrel, and plug means also releasably mounted within the seal member to prevent ingress of liquid concrete during box formation. A spacer member is provided for those instances where the seal member is to be installed in the wall of a relatively thick-walled concrete box. Alternate means for releasably retaining the seal member to the mandrel are disclosed. Additionally, a series of such seal assemblies is disclosed for use in sealably attaching a pipe through a thick poured concrete wall, such as a basement wall.

Abstract: A tool for scribing lines in soft concrete in which the line can be impressed by a standing operator. Guides are provided on the tool to assure a proper angle of the scribed line. A grooving tool can then follow the scribed line without added guide because the line will be located and all rough aggregate in the concrete will have been moved out of the path of the grooving tool.

Abstract: An apparatus for forming a multi-colored integral vinyl skin shell including a heated mold and dual powder box arrangement wherein the mold is formed to include alternately positioned tear surfaces and recessed surfaces. The powder box has a plurality of spaced dams or dividers formed therein such that the dams cooperate with the respective recessed surfaces of the mold to provide clearance therewith that permit different colored powders in the compartments between the dams to cover the previously cleared tear surfaces and to flow past the selectively formed free ends of the dams to become integrally secured to the adjacent edge portions of the shell segments remaining in the areas of the recessed surfaces of the mold, forming the multi-colored, integral plastic shell.