Abstract: A patterned tool and method for producing a durable tactile warning surface for sidewalks and other walkways including pouring a concrete base, applying pigmented or colored hardener to the upper surface of the concrete base, stamping the upper surface of the concrete base with the patterned tool including a substantially flat member having a plurality of symmetrically disposed recesses of a predetermined diameter and depth formed on the lower surface thereof and a plurality of corresponding vent channels formed through the substantially flat member in communication with each corresponding recess and curing the concrete base to form a durable tactile warning surface including a plurality of symmetrically disposed raised elements of a predetermined diameter, height and spacing corresponding to the plurality of recesses to produce an uneven surface visually contrasting with adjacent surface areas.

Abstract: A ramp for the physically challenged includes three different types of sectional portions: a slab disposed at the interface of a level surface such as a floor or earth ground; one or more ramp portions, each having a sloping upper surface, disposed adjacent to one another; and a switch platform having a level upper surface. Forms used to fabricate the three different types of sections are provided. A form for fabricating the sloping ramp portion includes a bulkhead, outer panels, and a set of inserts having varying height. The inserts are used to vary the resulting depth of the side panels of the concrete ramp portions. An upper surface of the bulkhead is sloped downwardly in a plane parallel to that of the upper surface of the concrete ramp portion. Apparatus is provided to elevate the front portion of the assembled form so as to place the upper surface of the bulkhead in a horizontal plane that is parallel to the plane of the level surface upon which the form rests.

Abstract: A concrete forming system including an elongated member for extending from an exterior portion of the forming system to an interior portion of the forming system whereby the concrete or other pourable formable material exerts pressure on the interior portion of the elongated member and secures it with respect to the form members. A slidable member fits onto the exterior portion of the elongated member, the elongated member and the slidable member are secured to one another through perforations provided in both and through use of a securing pin to hold them rigid with respect to the formed border.

Abstract: A flexible form is presented. The flexible form may be shaped to produce the desired contour of concrete or other plastic material in the construction of various structures and is held in place by a plurality of positioning brackets. The flexible form is made of two or more parts, an outer part which provides durability and wear resistance and an inner part which provides the desired flexibility and is protected by the outer part. The parts are assembled in such a manner that each flexes independently of the other parts.

Abstract: A tool for installing an object for example a flammable fluids containment box in a form for a concrete structure has an elongated bar oriented horizontally, and four slidable assemblies mounted on it. Two outer assemblies each have a horizontal rod section around the bar and a T-screw or allen head bolt for fastening the rod section in place on the bar. The outer assemblies have a mechanism to engage a lip of the form, and a mechanism to support the assembly on the ground outside the form if the form is lipless. The inner assemblies each have a horizontal rod section that fastens in place on the horizontal rod, and has a vertical rod attached to its underside. At the bottom of the vertical rod is an assembly for fastening the containment box such that the tool thus suspends the containment box in position in the form, so that the box will set in place in the concrete.

Abstract: An apparatus for forming risers for concrete steps between a pair of spaced vertical walls. The apparatus takes the form of a bracket which is to connect with a length of wood such as a conventional 2.times.6. A threaded member associated with the bracket in threading movement causes the bracket to extend from the 2.times.6 to produce a clamping of the 2.times.6 in the bracket between the spaced vertical walls. As a result, a removable barrier is formed which is to contain concrete when it is poured. After sufficient drying of the concrete, the 2.times.6 and the bracket are removed from the vertical side walls leaving the now produced concrete step.

Abstract: An apparatus for continuously shaping and extruding concrete or other moldable material as a decorative curbing. The apparatus is operable by one person at high extrusion velocity, negotiates short radius serpentine curbing paths, and is maneuverable in tight spaces because of side-to-side and vertical adjustment features, and a short "wheel base". Moldable material is placed in a hopper and flows into an auger which compresses, mixes and extrudes the material through a shaped, non-flanged mold into the desired curb bed. A fueled engine or electric motor drives a hydraulic pump to pressurize hydraulic fluid. The pressurized fluid drives a hydraulic motor which turns the auger. The speed is controlled by simply setting a fluid flow valve.

Abstract: A fixture for an adjustable mold in which concrete road barrier sections are precast. The mold can be configured to cast symmetrical or asymmetrical sections having a uniform cross section throughout or a cross section that varies uniformly along the length of the section.

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: Apparatus for stripping concrete forms from the undersurface of a concrete roadbed of a bridge under construction has a carriage positioned on and driven longitudinally along the upper surface of the roadbed. The carriage carries spaced apart transversely extending support beams having rack gearing which meshes with pinions carried by housings telescopically received on the support beam and having rollers for rolling on tracks on the support beams. Each support beam has two housings which may move toward and away from each other. The housings carry downwardly depending framework extending beneath the roadbed and supporting a work platform support section. The two work platform support sections associated with each carrier beam may interlock to form a continuous work platform support at each longitudinal end of the apparatus, and may separate when the housings associated with each support beam are driven away from each other to provide a clearance about the pier caps of the bridge.

Abstract: A flexible form for making street and sidewalk curbs uses C-channels such as is utilized in straight portions of street curbs, said C-channels carrying "V" openings spaced regularly evey 6 inches or so, to facilitate gradual bending, such opening being equipped with a U shaped spring which resists the bending and, at the same time, causes a uniform tension along the length of the curve. The V openings are located both in the straight interior part of the curve and in the slanted external part of the curve. The external part of the curve has other V slots vertically placed in the web and spaced one every 5 feet for a curve radius of 12 feet, such V slots correcting the vertical camber of an inclined bent form. The flexible form, once spring balanced, allows the casting of concrete in a continuous fashion.

Abstract: A rigid, light-weight, thermoplastic bubble insulation form for cast in situ concrete slabs includes hemispherical void spaces for reduction of concrete volume and thermal insulation characteristics. An upper hemispheric surface provides an integral seating arrangement for wire mesh reinforcement. An under-surface of the form includes spacer nodules for facilitating drainage. The bubble relief form is water impervious for controlling curing of the concrete and further is supplied in modular units adapted for trimming and overlapping spliced connections.

Abstract: The invention relates to a form for producing concrete rails for rubber-tired vehicles which are guided on a track. In contrast to steel rails, concrete rails no longer bend after production, so that numerous different molds are required for curves, transition curves, super elevations, and the like. This drawback is avoided with the form according to the invention, wherein the form makes it possible to produce both straight rail sections, as well as rail sections having varying curvatures, using the same mold. As a result, the expenditure for rail forms is considerably reduced.

Abstract: A curb inlet having a removable non-concrete gutter form, which is an arcuate, generally rectangular strip having a concave front face and a convex rear face with a plurality of handles secured to the rear face and, also secured to that rear face, a plurality of aligning horizontal sleeves each having a tube portion and a latch portion and each having a locking bolt slidably mounted in the sleeves. The form can be locked in place in a pre-cast curb inlet member by the bolts entering openings in that pre-cast member. The form retains concrete when the concrete is poured against the pre-cast member. After the concrete sets, the bolts are withdrawn from the openings and the form can be removed through an access opening therein. The form strip may be a fiberglass-plastic resin structure.

Abstract: A system for constructing concrete barriers on a roadway with adequate spacing between sections of the barrier for proper drainage and expansion of the concrete during changing atmospheric conditions. The process utilizes a specially designed positioning tool to leave a proper space in a latice framework of steel rods. A temporary, removeable core or separating section, made of for example a styrofoam inner layer sandwiched between outer layers of "Masonite," designed for this purpose and matched with the positioning tool is inserted into the space and secured there using pins attached to the metal latice works providing an unbroken, constant surface or mold on which to pour concrete for the barrier. When the concrete has set, the core may be collapsed without damaging the concrete or metal frame and removed. When the various cores are removed, the barrier is left with properly spaced and positioned gaps for drainage and expansion of the concrete.

Abstract: A clip or retainer for supporting wood members for the creation of forms for concrete pours, primarily for curbs and gutters comprised of a pair of spaced, both of which are usually horizontal, members joined at their ends to front and rear bars, the rear of which is vertical while the front one is vertical at its upper portion, and depending outward from a point of junction with the lower horizontal bar to a point of termination, or the front one can be vertical in its entirety depending upon its intended use.

Abstract: A reusable form for a formed in place concrete pad positioned near a structure. The form including two spaced side beams of a predetermined length beam having first and second ends, each of the first ends are adapted to engage the structure in an abutting relation. The form further including a front beam engaging the side beams at said second ends; a pin hinge for connecting the front beam to the side beams proximate the second ends; and transverse stabilizer means mounted to and suspended above the side beams for establishing a parallel spacing between the side beams for squaring or establishing a perpendicular relation between the side beams and the front beam.

Abstract: A moulding tool for making curb stones from vibrated concrete having a rather high water content, the moulding tool being designed to offer good vibration properties and safe and simple removal of the curb stone from the moulding tool despite the fact that the concrete has a troublesome tendency of adhering to the moulding tool. According to the invention such a moulding tool is characterized in that the mould cavity is defined mainly by a main member of the moulding tool, said main member being a substantially rigid unit, and by two displacable end members, and that the moulded curb stone is removable from the main member in a direction parallel to the direction of displacement of the end members, the end members having means for exerting force on the curb stone when being displaced from the moulding position.

Abstract: Metal supports (1), are provided to rest on the ground and to removably support metal forms (2). These supports are provided with screw (4) and nut (9) means used for accurately adjusting in elevation the forms. Removable struts (16) are used to fix the gap or spacing between parallel forms and tension wires (17) going through the forms are used to secure the forms during the casting of the concrete. Means are provided to stretch and secure (20, 21) these wires with respect to the forms.This apparatus allows to make a slab of which the upper face is perfectly horizontal and at the level desired, with a minimum of time devoted to the setting in place and removing of the apparatus.

Abstract: A cast concrete form work apparatus for constructing bridge beams in which form work partitions 5, 6 and 10, 11 having work surfaces 6, 12 are tangentially adjoined by a tube member 1 and adjustable apparatus is provided to hold in a fixed angular relation two work partitions by use of a clamping bar 13 and clamp screw 14 extending through a slot 16 together with a groove member 2, 3, 4 having a seal 21. Complementary constructions assembled as a pivotal arrangement provide a form work for constructing bridge beams with an upper surface disposed for use as inclined roadway.

Abstract: A disposable mold form for use in constructing a concrete coping along the upper edge of a swimming pool, and a method of molding such coping. The disposable mold form comprises a plurality of elongated form sections each having a surface portion configurated in the finished shape to be imposed thereby upon the coping, and each having also an attachment portion adhesively attachable to the vertical walls of such pool adjacent the upper edges thereof. Each form section is lightweight, sufficient stiff to confine a moldable mass of concrete spread thereagainst, and bendable along the length thereof to enable it to conform to either inside or outside arcuate corners along such vertical walls of the pool.