Abstract: A reusable pool mold for forming a swimming pool coping or overhang above a peripheral portion of pool water in accordance with the present invention includes multiple bracket members detachably secured to a liner receiver for a swimming pool. Each bracket having a lower portion of an outer vertical member integrally joined to an outer portion of a horizontal member, and having an inner portion of said horizontal member integrally joined to an upper portion of an inner vertical member. Each bracket member includes a securing member for detachably securing a bracket member to the liner receiver. The pool mold includes a form member that continuously extends above a water portion of a swimming pool; the form member receiving deformable material that ultimately solidifies, whereupon, the form member and brackets are removed from the solidified material to reveal a configured coping or overhang continuously extending above a peripheral portion of water inside the swimming pool.

Abstract: A tactile tile assembly includes a base having a plate section, a rim projecting up from the plate section, and a plurality of embedment anchors on the base. A tactile tile is adapted to fit into or onto the base. Fasteners extending through the tactile tile attach it to the base. The top of the rim may be substantially co-planar with a top surface projections on the tactile tile. The embedment anchors may be provided in a plane of the plate section and be bent to a position perpendicular to the plate section for embedment into a pavement material. The base has attachment elements for attaching the tile assembly to an adjoining tile assembly. Two or more tile assemblies are attached together to provide a tile assembly combination of a desired size and shape. The tile assembly combination is then installed in the paving material.

Abstract: A prefabricated mold for construction of a concrete pavement capable of being easily assembled, installed and disassembled and being repeatedly re-used is provided. The prefabricated mold includes coupling segments taperedly installed at both upper and lower ends of the mold to be butt-coupled to each other, fixing rod insertion holes formed through an upper central region of the mold and formed through the coupling segments formed at both sides of the mold, coupling grooves installed in a plural number to protrude from an inner surface of the mold having an internal space formed therein, finishing plates having a plurality of protrusions formed therein to be inserted into the coupling grooves, fixing rod insertion holes formed at the mold having a slope segment installed at a front upper portion thereof by injection-molding the mold using a synthetic resin material, and fixing rods inserted respectively into the fixing rod insertion holes to fix the mold on the ground.

Abstract: Detectable warning areas (DWAs) and methods of forming the same are provided. A mat template having one or more holes can be placed over a substrate, and a dome-forming material can be filled in the mat template by pouring the dome-forming material over the mat template and working the dome-forming material into the one or more holes of the mat template. The mat template can remain in place until the dome-forming material is completely cured, and then the mat template can be removed. DWAs formed according to this method display improved properties, including increased bond strength.

Abstract: A method and an apparatus for the protection of a railroad rail, a direct fixation plate or another support unit, a rail to rail connection and a rail to plate connection contacting with concrete upon placing of concrete during construction. The method comprises a step of disposing a mask over a railroad track having a railroad rail, a rail connector and a rail tie to protect the railroad track while placing concrete, the mask configured to cover the rail connector and tie. The mask has a connecting portion, a central portion, an extending portion configured to mask an upper longitudinally extending portion of a railroad rail, and at least one perpendicular section disposed to cover a railroad tie, direct fixation plate or other support unit.

Abstract: The slab edge forming and insulating system includes edge members and support braces. The edge members include an elongated shell having an upright portion with an insulated inside surface, an upper portion and a lower portion. Each of the upper and lower portions has formed edges. Open cross sectioned support braces having upper and lower formed edges for engaging the formed edges of the elongated shell are fixed to a footing and connected to the edge members. The edge members form and insulate the edges of the poured concrete of the slab while the open cross sectioned support braces receive the poured concrete of the slab and thus anchor the edge members to the edge of the slab.

Abstract: The concrete form tool apparatus allows a single worker to correctly position inner and outer stem wall forms. The apparatus saves time and labor by allowing a worker to quickly position forms. The apparatus properly positions inner and outer stem wall forms in a parallel relationship, a proper height relationship, and in a proper distance relationship.

Abstract: In order to provide a pavement body that is well drained and that keeps a part of water at a time of rain so as to avoid generation of a large amount of discharging water, that supplies the kept water to a surface layer at a time of drought and that soaks up the water of the roadbed so as to lower the temperature of the surface layer, a middle layer part (12) is formed by laying a porous aggregate mixture (a) made by mixing a porous material with a solidification material of a cement system, and a surface layer part (11) is formed by laying an asphalt mixture (b) having a water permeable function on the middle layer (12) so that a base course (1a) comprising a pavement body (1) is formed.

Abstract: The slab edge forming and insulating system includes edge members and support braces. The edge members include an elongated shell having an upright portion with an insulated inside surface, an upper portion and a lower portion. Each of the upper and lower portions have formed edges. Open cross sectioned support braces having upper and lower formed edges for engaging the formed edges of the elongated shell are fixed to a footing and connected to the edge members. The edge members form and insulate the edges of the poured concrete of the slab while the open cross sectioned support braces receive the poured concrete of the slab and thus anchor the edge members to the edge of the slab.

Abstract: A form for receiving a filler material to create an island is provided. The form is made essentially entirely out of galvannealed steel that is easily paintable. The form has a substantially continuous wall having an outer surface and an inner surface. The wall is made out of a plurality of galvannealed steel wall sections. The wall has a first side and a second side opposite the first side. The inner surface forms an enclosed chamber for receiving the filler material. A first support made out of galvannealed steel is attached to the inner surface of the first side of the wall and a second support made out of galvannealed steel is attached to the inner surface of the second side of the wall. A brace made out of galvannealed steel is disposed between the supports, wherein the brace removably engages the supports.

Abstract: A form for receiving a filler material to create an island is provided. The form is made essentially entirely out of galvannealed steel that is easily paintable. The form has a substantially continuous wall having an outer surface and an inner surface. The wall is made out of a plurality of galvannealed steel wall sections. The wall has a first side and a second side opposite the first side. The inner surface forms an enclosed chamber for receiving the filler material. A first support made out of galvannealed steel is attached to the inner surface of the first side of the wall and a second support made out of galvannealed steel is attached to the inner surface of the second side of the wall. A brace made out of galvannealed steel is disposed between the supports, wherein the brace removably engages the supports.

Abstract: A concrete form apparatus adapted to brace a concrete board and a base board in a foundation. The concrete form apparatus includes a plurality of leg members, a linking member and a concrete board support. At least one of the leg members is adapted to be positioned against the base board, while at least one of the leg members is adapted to be positioned against the concrete board. The concrete board support is attached to a top portion of one of the leg members and is adapted to secure the concrete board parallel to the base board. The concrete form apparatus may also include a removal mechanism to aid in the removal of the device, and it may also include at aperture through which a fastening device may be directed to secure the device to the base board. The present invention is modular and reusable.

Abstract: A brace for securing concrete forms to a base has first and second triangularly-shaped sidewalls and a back wall extending between corresponding side edges of the sidewalls. A peripheral flange extends outwardly from the side edges of the sidewalls and the ends of the back wall and has apertures for facilitating fastening of the brace to the concrete forms and a casting surface. Advantageously, the brace can be formed as a unitary, molded component. A battering wedge is selectively attachable to the side edges of the sidewalls and cooperates with the brace to facilitate tilting the concrete form at an angle to the casting surface. The battering wedge is selectively frangible to permit use with braces of varying size.

Abstract: A former, process for making same, process for using same, and resulting pavement-like site, where the former is a one-time use structure made of wood fiber or paper pulp molded into a rigid shape and defining a plurality of hollow peak-like structures extending from a base sheet. Each peak is substantially closed at its extremity away from the base sheet and open at the extremity at the base sheet. This former is used for installing combination pavement and dirt/gravel surfaces such as those known under the tradename Grasscrete®.

Abstract: The invention relates to a holding device, preferably a shell device, which comprises a magnet that can be transferred from a locking position, in which the magnet is preferably operatively connected to a magnetizable shell support so as to magnetically act upon it, to a detach position in which the magnet is spaced apart from the shell support. The aim of the invention is to simplify a holding device of the above-described kind. The magnet, for the purpose of transferring it from the locking position to the detach position, is mounted so as to be rotatable about a swiveling axis in such a manner that in the detach position it is disposed so as to be swivelable via-à-vis the locking position.

Abstract: A concrete pad with drainage holes is created using an in-situ form that is preferably biodegradable with a matrix of spaced, vertically aligned conduits having upper ends with removable caps and connector means connecting the conduits. The form is horizontally positioned at the area where the pad is to be created and concrete is poured into the form until the concrete surrounds the walls of all of the conduits and the upper surface of the concrete is in a plane with the upper ends of the conduits. After the concrete has cured, the caps are allowed to biodegrade or are removed to permit water to flow from the top of the pad through the conduits for drainage from the lower ends of the conduits into the soil beneath the pad.

Abstract: The concrete form is a structure having a user-selectable shape allowing for the creation of an opening in a concrete surface, such as a concrete patio, with the opening having the user-selectable shape. The form includes a plurality of wall members, which are joined together to form a closed continuous wall having the user-selectable shape. The wall members are each secured to the ground, and the user pours liquid concrete on the ground exterior to the closed continuous wall. The closed continuous wall defines the opening and prevents flow of the liquid concrete within the opening. Following hardening of the concrete, the form may be removed, leaving an opening in the concrete surface, having the user-selectable shape, in which the user may plant flora and the like.

Abstract: A cleat device (20) is taught for forming concrete curbing that jointly retains a back board form (22) and a front board form (24) with a spreader (25) spaced apart between the forms. The cleat device consists of three basic elements first a right angle shaped cleat back (26) having a top (28) and leg (30) configured to intimately engage and retain the back board form. Second a cleat arm (44) that includes a top arm (46) and an acute angled downwardly depending member (48) attached to the cleat back top forming an inverted channel. The third element is a cleat leg (58) that is attached to the downwardly depending member allowing the cleat leg to be adjusted vertical or at an acute angle. Adjustment means provide a cleat device capable of supporting the back board and front board form with a spreader in-between while constructing a L-curb and gutter, a A-22 curb or a A-90 curb configuration.

Abstract: The present invention is directed to a pre-cast panel form insert used in precast construction. The insert comprises a substantially planar portion defining dimensions suitable to complement dimensions of a pre-cast panel form and a fluid diverting portion. The fluid diverting portion is configured to define a fluid-diverting recess in an edge face of a pre-cast panel bounded by a form including the form insert. The fluid diverting portion is configured such that said fluid diverting recess defines, a circular cross-sectional profile, or a multi-angular cross-sectional profile, that impedes the flow of water along said pre-cast panel edge face when said edge face assumes a substantially horizontal orientation.

Abstract: The present invention comprises an apparatus for supporting a frame from a utility container. The apparatus comprises a plurality of support members being configured to form a box. The support members are slidably attached to each other. The apparatus further comprises at least one actuator being positioned between and attached to the support members. When the actuator is caused to lengthen, the support members slide away from each other until the box maintains position in the utility container thereby providing support to the frame.

Abstract: In one aspect the present invention provides an apparatus for forming paving from a settable material and which comprises: a base frame having a plurality of upstanding walls which, alone or together with an adjacent positioned said base frame, defines a plurality of compartments within which the settable material may be placed to be moulded by the compartments of the base frame(s) into a plurality of blocks, the base frame being adapted to be left in situ; and a grout frame which is of a substantially corresponding shape in plan to the base frame and which is positioned atop the walls of the base frame in use, extending the walls upwardly.

Abstract: A pre-fabricated pavement slab having a binder distribution system and an interconnection system formed for attachment of the bottom surface of the slab, wherein both the binder distribution system and the interconnection system are accessible from the top surface of the slab, such that the binder material may be injected into the binder distribution and interconnection systems from the top surface of the slab.

Abstract: Method and apparatus suited for forming retrofit detectable warning surfaces on existing surfaces or new warning surfaces. Apparatus includes a tool in the form of a stamp having one or more dome-shaped volumes that may be truncated domes. Dome-shaped volumes may have interior beginning on a bottom side of a stamp and the truncated portion may be defined by a hole provided in a top side of the stamp. Thanks to the hole, when the stamp is removed from the unhardened concrete, the hole functions as a pressure-relief or pressure-equalizing valve eliminating undesirable distortion of the unhardened concrete and ensuring formation of desired dome-shaped concrete projections.

Abstract: A pre-cast textured tile system and method for positioning on walkways, crosswalks and other areas of pedestrian traffic for providing direction and warning to visually handicapped persons. The tile may be made for embedding in fresh concrete on a walking surface and have a substantially planar piece with a top surface and a bottom surface, the top surface having a plurality of raised elements and the bottom surface being scarified. A number of the tiles may be aligned so as to easily adapt to a number of different shapes and purposes. The tiles are not interconnected, but rather abut one another with at least one edge being flush to the walking surface.

Abstract: A form assembly for forming a concrete structure during drying of the concrete. The form assembly is formed of an elongated plastic form having a front wall for engaging the concrete and a rear wall. The front wall is spaced apart from the back wall to define a pocket for receiving at least one connecting member. The connecting member is secured in the pocket to project a distance beyond an end of the form. A slidable stake holder may also be provided to slide in a C-shaped pocket in the form. The stake holder has right and left flanges that abuttingly engage the rear wall and at least one preformed nail hole is provided in each of the right and left flanges.

Abstract: A void former comprises a core assembly having at least two body members. The body members are removably coupled together to define the desired shape of a void to be formed in a concrete slab. After the void has been formed in the concrete slab, the body members may be selectively removed from the void.

Abstract: A flexible form assembly for forming concrete structures during setting of the concrete is provided. The flexible form assembly includes an elongated form having a front side for engaging the concrete and a rear side. The rear side includes a back wall disposed between two rearwardly extending top and bottom walls which, in turn, are connected to downwardly and upwardly protruding lips respectively to form a C-shaped pocket for receiving a stake holder. The stake holder includes right and left flanges that abuttingly engage the back wall and that fit between the top and bottom walls and that are partially disposed between the upper and lower lips and the back wall. The stake holder further comprises a pocket portion that is connected to and disposed between right and left flanges. The pocket portion extends outwardly to define an apex which provides a looped pocket for receiving a stake.

Abstract: A form assembly for forming a concrete structure during drying of the concrete. The form assembly is formed of an elongated plastic form having a front wall for engaging the concrete and a rear wall. The front wall is spaced apart from the back wall to define a pocket for receiving at least one connecting member. The connecting member is secured in the pocket to project a distance beyond an end of the form. A slidable stake holder may also be provided to slide in a C-shaped pocket in the form. The stake holder has right and left flanges that abuttingly engage the rear wall and at least one preformed nail hole is provided in each of the right and left flanges.

Abstract: A molding device for placement of formed cementitious material such as concrete on a mounting surface. The device is used in combination with a supply of pressurized cementitious material communicated through a hose from a conventional cement pump or the like. It features a mold unit having an a compression chamber at a first end communicating with an extrusion chamber at a second end. Cement material is forced into the compression chambers from the cement pump and extruded from the exit orifice of the extrusion chamber. The device is propelled forward by the pressure from the injected cement against the front of the device and away from the formed material means control any upward travel of said mold unit caused by said internal pressure against said top wall. Weights may be added to the top of the device to limit upward travel and a steering mechanism may be added to the front of the device to steer it on a defined course.

Abstract: An assembly of concrete forms for use in the placement of concrete, the assembly having a pair of longitudinal form members and a ground engaging member that is in contact with at least one of the longitudinal form members. A first longitudinal form member slidably overlaps a second longitudinal form member such that the length of the combination of longitudinal form members is adjustable. Inverted U-shaped channels are provided at the top of each of the longitudinal form members which allow a male/female overlapping relationship and provide a location to receive the ground engaging member. A radius form member includes a longitudinal form member with a horizontal component or inverted U-shaped channel having successively spaced apart slots thereon, so that the radius form member is flexible. To create an angle, a corner forming bar is also provided for the assembly, extending between two of the longitudinal form members.

Abstract: A retaining wall block is provided. The retaining wall block includes top, bottom, front, back, first side and second side surfaces. A tongue set is provided on the top surface of the block and a groove in the bottom surface of the block. The tongue set includes a rear-facing surface set that includes first and second curved sections. A block form for forming retaining wall blocks is also provided. A face form for placement on the bottom surface of a block form is also provided. A method of molding retaining wall blocks with a form having hinged doors is also provided. A method of using a face form for forming two blocks of reversed front surface ornamentation is also provided.

Abstract: A straight steel curb for the steel curb faced concrete curb of a roadway has a vertical sidewall and a horizontal portion. Two sheet metal or plastic benches, which lie on the floor of the trench, are aligned relative to a string line. Each bench has a bracket which supports a bottom edge of the steel curb at its two ends, to position the steel curb. The front plate and back plate of a bench are welded to the bottom plate by a weak weld which shears under the pressure of the expanding or contracting concrete or has a pleated base which contracts and expands. The bench has front and back flanges which, respectively, hold front and back concrete forms.

Abstract: An assembly for receiving poured concrete including a non-metallic form which surrounds an inner cavity and is capable of supporting poured concrete. In one particular embodiment, the assembly is composed of individual segments which are joined together to produce a rigid concrete form. The assembly is utilized as an upstanding island for location and placement of fuel dispensers.

Abstract: An adjustable reinforcement insertion guide is installed within the slip form mold of a mobile concrete slip form machine, for guiding steel reinforcement screens into the mold interior during the casting of continuously poured concrete barrier walls (i.e. “Jersey Walls”). The guide is vertically adjustable, in order to clear curbs, open cut joints, etc, as required. Additional adjustment is provided for a series of laterally adjustable outlet panels on the back of the guide, which provide additional accuracy and adjustment in guiding the steel mesh or screen which passes through the guide. The guide is fixed to the mobile slip form machine (with the exception of the vertical adjustment of the guide relative to the slip form machine), and travels with the machine as fresh concrete is introduced into the slip form mold of the machine.

Abstract: A connector for use in joining form boards in a variety of configurations to form up a slab or footing without having to size the form boards and having an upstanding panel terminating in a flange in which apertures are formed to receive fasteners which penetrate and secure the form boards in the desired spacing and relative position while nested in the connector during pouring of the concrete structure being formed; the connector further having the capability of being notched and creased to permit specific angular relationships being achieved.

Abstract: A prefabricated one-piece metal frame and funnel drain is constructed for curb and gutter use. The frame may be constructed in a number of styles, with a particular style selected to match the desired curb form. The funnel drain also includes a variety of styles in order to accommodate different drain pipe orientations and configurations. When welded together, the frame and funnel drain may be mounted within any standard curb and gutter form such that curb and gutter installation and drain pipe installation may be accomplished simultaneously, without any preparatory concrete work required for placement of the frame and funnel drain.

Abstract: A swimming pool deck and pool wall support that includes a unitary shell member defining two vertically extending chambers each filled with concrete. At a first end of the shell member the chambers are connected by a web. The shell member further defines a gap extending from the web to a second end of a shell member and separating the chambers. The support may be utilized as part of a swimming pool deck and pool wall support system. A method of supporting a swimming pool deck and pool wall is also disclosed.

Abstract: Embodiments of apparatus and a method of raising a manhole ring during construction or repair of roads are shown and described. The apparatus and method include formation of a manhole collar by use of a form that rests on a manhole cone and trimming the form to have its top edge at the correct elevation and orientation to properly receive the manhole ring. After the manhole ring is received on the form, a single monolithic pour of concrete creates a concrete collar that fills and seals the vertical space between the manhole cone and ring and the manhole ring is thus secured and sealed at the proper elevation that results in the manhole ring and its cover being level with the surrounding pavement. The apparatus includes an accurate custom-trimming assembly indexed off of the pavement surface for trimming the form to the proper dimensions for the particular site.

Abstract: A flexible concrete form which can be arranged to provide both straight and curved configurations, and is adapted to flex both horizontally and vertically. The form includes a face panel and upper and lower flanges having lips on their back edges. An intermediate rib spaced below the upper flange provides a ledge on which a rigid core member can be installed to enhance the rigidity for straight areas. The upper and lower flanges have aligned openings for receiving stakes used to anchor the form to the ground. The form is preferably constructed from polyethylene, polyvinyl chloride, or polybutylene because of the strength and flexibility of these materials as well as their ability to release from concrete without the need for scraping or release agents.

Abstract: A device for inserting rods into plastic forms comprising a frame, a plunger assembly coupled to the frame, an air cylinder assembly also coupled to the frame and to the plunger assembly, and a pneumatic plumbing assembly connected to the air cylinder assembly. The frame can be attached to a slipform paving or curbing machine. When actuated, the air cylinder assembly pulls the plunger along the frame. The plunger pushes a dowel rod resting in the frame along the frame and into a concrete member being extruded from the machine.

Abstract: Disclosed is a non-loose hardware type traffic separating median barrier comprising having a male interlocking structure on one end and a female interlocking structure on the other end. In a preferred embodiment, the male interlocking structure comprises a "T" section extending from the end of the barrier and the female interlocking structure comprises a vertically extending steel tube with a slot in the external portion thereof. The "T" section of one barrier can be vertically engaged with the slot and tube section of an adjacent barrier so as to interlock the barriers together. In a preferred embodiment, reinforcing bars lock the interlocking structures into their respective barriers and, in a further preferred embodiment, reinforcing bar serves to interlock the male and female interlocking structures of a single barrier.

Abstract: Vehicle arresting blocks of cellular concrete are usable to safely slow travel of an object and may be used to construct an aircraft arresting bed at the end of an airport runway. For such purposes, cellular concrete blocks must be fabricated to exhibit compressive gradient strengths of predetermined values to provide sufficient, but not excessive, deceleration forces on an object. Material uniformity characteristics must be met to avoid unacceptable drag force variations, so that arresting blocks desirably exhibit a predetermined compressive gradient strength (e.g., a 60/80 CGS) over a depth of penetration of 10 to 66 percent of block thickness. A 60/80 CGS will typically represent an average compressive strength of 70 pounds per square inch over such depth of penetration. Prior applications of cellular concrete typically involved meeting minimum strength values and the production methods did not meet uniformity or compressive gradient strength predictability as required for arresting blocks.

Abstract: In an apparatus for forming concrete pathways, a mold includes a plurality of openings for receiving concrete therein. The mold openings define separate and distinct concrete cavities. Concrete pathways, are formed by placing the mold of the invention on a surface for receiving the concrete in the concrete cavities. Upon removal of the mold, the concrete segments retain the shape of the mold cavities and are slightly separated from each other. The procedure is repeated to form a pathway of a desired length and configuration.

Abstract: A tactile warning surface has an array of tactile elements made of a composite material formed on the surface of an existing substrate. The preferred composite material is a mixture of a dry powder aggregate and a liquid SBR latex. The tactile elements are in the form of truncated cones or flattened domes having a height of about 0.20 inch and a diameter of about 1.0 inch. A method for installing the tactile warning surface includes the steps of placing a mold sheet having an array of mold apertures with shapes corresponding to the tactile elements over the substrate area, injecting the composite material in a semi-liquid state under pressure into the apertures of the mold sheet, allowing the injected composite material to cure and harden, then removing the mold sheet. For increased durability in traffic-bearing applications, a pigment/aggregate mixture can be applied as a coating over the tactile elements and substrate area.

Abstract: A device 10 is provided for supporting a wall 11 of a form for containing concrete and like fluid materials. It comprises the following components and arrangements thereof relative to each other; and normally but not necessarily arranged as in FIG.

Abstract: A mold for casting ground covering, such as a plurality of stepping stones, has a generally polygon concrete molding frame having top and bottom surfaces in parallel planes and divided into openings. The frame is generally square and may include nesting polygonal configurations. Each wall has a plan shape of contiguous line segments connected at obtuse angles. A first diagonal wall extends approximately from the first corner to the third corner, and a second diagonal wall extends approximately from the second corner to the fourth corner. The first perimeter wall is geometrically congruent with the third perimeter wall and the second perimeter wall is geometrically congruent with the fourth perimeter wall. The diagonal walls are geometrically congruent with the second and fourth perimeter walls.

Abstract: A mold apparatus for forming concrete border stones has a unitary generally rectangular body with contiguous opposed longitudinal side walls, opposed outwardly curved end walls at each end thereof, an open bottom end, an apertured top wall, and an interior vertical wall extending transversely between the longitudinal side walls. The walls circumscribe generally rectangular longitudinally adjacent cavities for receiving concrete therein and generally rectangular openings in the top wall define generally rectangular longitudinally adjacent openings at an upper end of the cavities. An opening through a lower portion of the interior vertical wall joins the lower portion of adjacent ends of the cavities together. In a preferred embodiment the vertical wall is disposed closer to one end wall than the other to form a longer generally rectangular stone shape and a longitudinally adjacent shorter generally rectangular stone shape.

Abstract: Metallic channel members hold forms for making pads, sidewalks, foundations, headwalls, and other structures. In a first embodiment, a channel member of linear configuration has a width that tightly receives abutting forms and has sidewalls of differing heights. In a second embodiment, one of the sidewalls converges toward the other and abuts a form along a line of contact. In additional embodiments, a pair of metallic channels are hingedly interconnected to one another or are fixedly secured to one another at a predetermined angle such as ninety degrees. In the single channel member embodiments, a bottom wall of the channel member may have a transverse bend formed in it to facilitate wheelchair ramp construction, and in the embodiments including a pair of channel members, one member of the pair may be oriented at a predetermined angle such as five degrees relative to the other member of the pair to facilitate the construction of inclined wheelchair ramps.

Abstract: The present invention is directed to a mold for forming concrete walkways or surfaces. The mold incorporates a plurality of openings for receiving concrete therein. The mold forms a single concrete slab having a simulated brick or rock pattern on it's surface. Concrete walkways are formed by placing the mold of the invention on a surface and pouring concrete in the openings. Upon removal of the mold, the concrete retains the pattern. The procedure is repeated to form a walkway of a desired length, width and configuration.

Abstract: Adjustable forms for pouring precast concrete slabs and similar articles of manufacture. The forms may be used either on site to produce concrete slabs as needed, or at a central manufacturing location, for transport to the site where needed. Concrete slabs produced with the adjustable forms may be used in patios, sidewalks, storage room or pump house floors, driveways, mobile home landings, and the like. The slabs may be steel reinforced, with expandable interlocking design, of various sizes, patterns and colors. Similar construction materials or decorative articles, such as tile, wallboard, and the like may also be produced with the improved forms.