Abstract:
A casted block molding apparatus, including a mold, first and second filler boxes, and a pressing mechanism. The first filler box is displaceable along opposed directions between an overlapping position where a first bottom opening is located over the mold cavities and a retracted position away from the mold cavities. The first bottom opening is closed by a first cover in the retracted position and is open over the mold cavities. The second filler box is mounted to the first filler box and displaceable therewith along the opposed directions. The bottom opening of the second filler box is closed by a second cover when the filler boxes are displaced from the retracted position to the overlapping position. The second bottom opening is open after the first filler box reaches the overlapping position. A method for molding casted blocks is also discussed.
Abstract:
A casted concrete stone having opposed parallel surfaces formed in a mold and wherein the opposed parallel surfaces have a molded textured surface. The concrete stone is fabricated by a dry-cast concrete mold wherein a profiling plate is provided with mold bottom wall formations each having a textured outer surface. A bond release film or spray or permanent coating is provided on the textured outer surface of the mold bottom wall formations. Mold forming side walls are disposed about the mold bottom wall formations. After the mold is filled with a dry-cast concrete mixture a top plate, having mold top wall formations, is disposed over the mold forming side walls with the mold top wall formations disposed inside respective ones of the molds to close the molds. Pressure and vibration is applied to compact the dry- cast concrete whereby to form a dry-cast concrete stone with opposed molded textured surfaces.
Abstract:
A block impact splitter (10) is comprised of a support frame (11') connected on a swivel (50) to a stationary frame (11). A hammer (15) is provided with a hammer head (16) and secured to a pivotal arm (17) pivotally connected to the support frame (11) at a pivot connection. An actuating piston (19) has a cylinder end (20) thereof pivotally connected to the support frame (11) and a piston rod end (23) pivotally connected to the pivotal arm (17). The actuating piston (14) displaces the hammer head (16) to impact against a pitching blade assembly (26) and to retract it therefrom. The pitching blade assembly (26) has a pivotal support arm (29) to which is secured a pitching blade (27). An adjusting mechanism (31) positions the pitching blade (27) relative to a block (28) to be split along a parting slot (28') of the block (28).
Abstract:
The design consists of the features of shape and configuration of the flagstone shown in the drawings.FIGURE 1 is a perspective view of the flagstone; andFIGURE 2 is a top view thereof.
Abstract:
A block impact splitter is comprised of a support frame connected on a swivel to a stationary frame. A hammer is provided with a hammer head and secured to a pivotal arm pivotally connected to the support frame at a pivot connection. An actuating piston has a cylinder end thereof pivotally connected to the support frame and a piston rod end pivotally connected to the pivotal arm. The actuating piston displaces the hammer head to impact against a pitching blade assembly and to retract it therefrom. The pitching blade assembly has a pivotal support arm to which is secured a pitching blade. An adjusting mechanism positions the pitching blade relative to a block to be split along a parting slot of the block.
Abstract:
An apparatus and method for roughing surfaces and edges of concrete casted blocks, comprising a block support surface having a plurality of surface sections. A first of the surface sections has a rear end thereof above an adjacent front end of a second of the surface sections to create a ledge for projecting a leading edge portion of concrete blocks conveyed over the first surface section. A first roughing device has a plurality of impacting elements thereon for roughing concrete blocks. The first roughing device is disposed generally above the rear end of the first surface section for abrading a projecting leading edge portion of each concrete block as they are conveyed over the rear end. A conveyor displaces concrete blocks over the first and second surface sections, the blocks being tilted when reaching a predetermined position over the ledge to avoid being abraded by the roughing device.
Abstract:
In combination, a culvert structure is interconnected with paver blocks, the paver blocks being interconnected to form a paved surface. The culvert structure comprises a rigid casing having a bottom wall, opposed parallel vertical side walls, and an open top end; one of the vertical side walls of the rigid casing having one or more projection formation interconnected with a slot of adjacent ones of the paver blocks. The other of the vertical side walls of the rigid casing has a slot formation interconnected with a block engaging projection of adjacent ones of the paver blocks. The bottom wall of the rigid casing has water evacuation passage therein for the evacuation of water therethrough and a support structure connected to said rigid casing for supporting a grate over the open top end.
Abstract:
A concrete cast stone resembling a flagstone for use with other ones of the concrete cast stones for covering a surface. The concrete cast stone comprising a body having a peripheral contour of non-repetitive jagged shape for interlocking engagement of a plurality of the concrete cast stone. The peripheral contour defining a distinguishable orientation with interlocking side sections and part-interlocking side sections such that said concrete cast stones placed side-by-side interlock by one or a combination of (1) matching the interlocking side sections in a linear arrangement of the concrete cast stones, and (2) matching the part-interlocking side sections in a herringbone arrangement. A method for assembling the concrete cast stone is also provided.