A mold assembly is used for manufacturing a ventilated building block. The ventilated building blocks are configured such that adjacent stacked blocks are inverted and reversed, thereby establishing front-to-back air passages that do not provide a sight line and prevent rain from passing through while enabling air ventilation.

A 3D printer with a lift mechanism is disclosed. The 3D printer is coupled to the lift mechanism which is in turn coupled to a base or the ground. The lift mechanism comprises telescopically extendable columns comprising concentric cylinders positioned within one another, so as to extend and collapse fully, thus raising and lowering the 3D printer to a specific height. The lift mechanism further comprises extendable and lockable diagonals which connect neighboring telescopic columns at their top portions in a helical fashion. The diagonals are installed for sturdiness and support as the lift is operated, as well as to position the lift at a desired height when the diagonals are locked in place. The lift mechanism may comprise 2 telescopic cylinder columns or 3 or more telescopic cylinder columns. The lift mechanism comprises at least a first stage and an intermediate stage, and optionally a last stage.

A method and manufacturing system for producing prefabricated parts of mineral-bound building materials, in particular for construction of buildings is disclosed. The manufacturing system includes at least one formwork table provided for casting the prefabricated parts of mineral-bound building materials as the essential component. The manufacturing system is mobile and it can be brought to the site of use of the prefabricated parts and in particular to the erection site of a building for manufacturing the prefabricated parts. Thus, this mobility allows transporting a complete small factory for manufacturing prefabricated parts of mineral-bound building materials to very different locations.

Manufacturing process of a stone providing for the following steps: positioning a die and a base platform under punches of a press, filling cavities of the die with a sand layer, placing a tube on the sand, actuating the actuation means to actuate the punches from the idle position to the operating position so that each punch presses the tube in the sand and presses the sand in the cavities of the die, actuating the actuation means to raise the punches, placing the stones in a drying station, extracting the solidified sand inside the tube from each stone, and placing a lighting device in the tube.

A turning device for fully automated turning in of a first double-walled part at least in some portions into a second double-walled part. The turning device includes: a turning frame, wherein the first double-walled part can be arranged at least in some portions within the turning frame, a drive unit for the automated rotation of the turning frame in a space, a fixing element arranged on the turning frame, by which a first double-walled part arranged at least in some portions within the turning frame can be fixed relative to the turning frame, and a controlling and/or regulating device for controlling the drive unit. The fixing element is displaceably and/or pivotably attached to the turning frame, and an actuating device is provided, by which the fixing element is displaceable and/or pivotable in an automated manner relative to the turning frame.

A method for making reconstituted limestone blocks includes using a batching plant to make a mixture comprising crushed limestone and cement. The mixture may additionally include water and an additive, such as a plasticizer. The batching plant has been modified to be compatible with the mixture. Next, the mixture is transferred from the batching plant to a mobile stamping machine having a mold box, a hopper, and a feed apparatus configured for transferring the mixture from the hopper to the mold box. Finally, the mobile stamping machine is activated so that the mobile stamping machine forms a construction block by transferring the mixture from the hopper to the mold box, depositing the construction block out of the mold box, and then moving to a next location. The mobile stamping machine is configured to produce approximately 100 construction blocks per hour.

A molded concrete U-wall construction block including a molded concrete U-wall construction block structure formed from cured concrete poured about a block cage made from reinforcing material during a block manufacturing process. The block cage includes an open aperture formed in each of its stem reinforcing portions. During the block manufacturing process, the first and second support members of a support mechanism are inserted within the open apertures formed in the stem reinforcing sections of the block cage, and cooperate with the open apertures of the block cage so as to (i) support the block cage when being loaded into a block manufacturing machine, (ii) define central apertures molded in each stem portion of the concrete U-wall construction block structure, and (iii) lift the molded concrete U-wall construction block when being unloaded from the machine.

A molded concrete U-wall construction block including a molded concrete U-wall construction block structure formed from cured concrete poured about a block cage made from reinforcing material during a block manufacturing process. The block cage includes an open aperture formed in each of its stem reinforcing portions. During the block manufacturing process, the first and second support members of a support mechanism are inserted within the open apertures formed in the stem reinforcing sections of the block cage, and cooperate with the open apertures of the block cage so as to (i) support the block cage when being loaded into a block manufacturing machine, (ii) define central apertures molded in each stem portion of the concrete U-wall construction block structure, and (iii) lift the molded concrete U-wall construction block when being unloaded from the machine.

A machine for and method of manufacturing concrete U-wall type construction blocks by molding each concrete u-wall construction block from concrete poured about a block cage made from reinforcing material while said block cage is loaded within the machine. The method involves providing a system of molding jacket panels, including a core molding assembly having a pair of inside stem jacket panels that are adjustably supportable in a substantially parallel manner during a molding process, and arranged is such a manner that the front wall portion is molded in downwardly facing direction toward a horizontal support surface and completely enclosed in one or more molding jacket panels. Before block molding operations, the thickness of the front wall portion of the U-wall construction block is set by determining the thickness of a front wall surface liner and installing the front wall surface forming liner within the system of molding jacket panels.

A geopolymer brick fabrication system comprising a mixer (100) having a tank (101) which comprises a closeable bottom outlet (102) and an inner surface coated with saturated polyester resin that is resistant against corrosive geopolymeric material for receiving the geopolymer raw material to be mixed by shaft (103) driven by a spindle motor (104) a molding section (200) to receive the mixed geopolymer raw material through a slanted conveyer (105) upon opening of the closeable outlet (102) for shaping the mixture under pressure inside a mold (201) to obtain a geopolymer brick and a curing section (300) having a moving platform (301) across a curing chamber (302) to simultaneously cure and transport the brick thereon.