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    • 4. 发明授权
    • Method for manufacturing a building block imitating a pile of dry stones
    • 用于制造模仿一堆干石头的建筑块的方法
    • US4784821A
    • 1988-11-15
    • US065924
    • 1987-06-24
    • Dory Leopold
    • Dory Leopold
    • B28B5/04B28B19/00B28B11/22B29C43/20B32B31/20
    • B28B19/0007Y10S264/57
    • A method of manufacturing a building block which imitates a pile of dry stones. According to the method, the stones (10) are placed side-by-side on the bottom of a mold whose inside shape corresponds to the desired block shape, said bottom being constituted by a grating. Cement is then cast inside the mold. The cement (11) is compressed in order to force it to spread out uniformly inside the mold and to creep between the stones (10). While the cement is kept under pressure, water is projected through the bottom grating against the outside face of the block (1), so as to remove any cement which may be found thereon. Pressure is then removed from the cement and it is allowed to set. Finally the block (1) is extracted from the mold.
    • 制造模仿一堆干石头的建筑块的方法。 根据该方法,将石头(10)并排设置在其内部形状对应于期望的块状的模具的底部上,所述底部由光栅构成。 然后将水泥浇铸在模具内。 水泥(11)被压缩以迫使其在模具内均匀地展开并在石头(10)之间蠕变。 当水泥保持在压力下时,水通过底部格栅突出抵靠块(1)的外表面,以便去除可能在其上发现的任何水泥。 然后从水泥中取出压力,并允许其固化。 最后,将模块(1)从模具中提取出来。
    • 5. 发明授权
    • Method of exposing aggregate in a poured concrete panel
    • 在浇注的混凝土板中暴露骨料的方法
    • US4496504A
    • 1985-01-29
    • US508737
    • 1983-06-29
    • Thomas W. SteensonWilliam D. Paton
    • Thomas W. SteensonWilliam D. Paton
    • B28B3/12B28B19/00
    • B28B3/123B28B19/0007
    • A method of making a cast concrete panel with coarse aggregate exposed on its upper face as cast comprising the steps of pouring and compacting wet concrete having a coarse aggregate content into a casting bed, leveling the upper surface of the concrete to the desired height by means that includes the passage thereover of a screed roller rotating in a direction to push excess surface concrete in advance of the screed roller, lifting coarse aggregate towards the upper surface of the concrete in advance of the screed roller by passing the free ends of rotating aggregate lifter arms through the concrete, the aggregate lifter-arms being spaced apart a distance to support coarse aggregate therebetween, whereby to lift and concentrate coarse aggregate in the wet concrete towards the surface, and to deposit a high concentration of coarse aggregate in front of said screed roller, said aggregate lifter arms being mounted radially of a rotating shaft that rotates in the opposite direction to the direction of rotation of the screed roller, compacting the concentrated coarse aggregate to leave cement and fine aggregate as an overlay to the compacted coarse aggregate by the passage over the surface layer of a compacting roller that is rotated in the opposite direction to the screed roller with respect to the direction of travel of roller rotation along the casting bed to compact coarse aggregate and deposit cement and fine aggregate as an overlay as aforesaid, permitting the body of the concrete to cure, and exposing the coarse aggregate on the upper face by removing cement and fine aggregate from between the coarse aggregate to expose the coarse aggregate on the flat upper surface of the panel as cast.
    • 一种制造具有粗骨料的铸造混凝土板的方法,其上表面为铸件,其包括以下步骤:将具有粗骨料含量的湿混凝土浇注和压实到铸造床中,通过装置将混凝土的上表面平整到所需的高度 其包括在熨平板辊之前的方向上旋转的刮板滚筒的通道,以便在熨平板辊之前推动多余的表面混凝土的方向,在刮板辊之前通过使旋转聚集提升器的自由端通过,将粗骨料朝向混凝土的上表面提升 臂通过混凝土,聚集的提升臂间隔开一段距离以支撑它们之间的粗骨料,从而将粗混凝土提起并集中在湿混凝土中朝向表面,并在所述熨平板前沉积高浓度的粗骨料 所述聚集的提升器臂沿着与所述滚筒相反的方向旋转的旋转轴的径向安装 熨平板辊的旋转方向,压实浓缩的粗骨料,通过在与熨平板辊相反的方向旋转的压实辊的表面层上通过压实的粗骨料,将水泥和细骨料作为覆盖物留下, 相对于沿着铸造床的辊旋转的行进方向,以压实粗骨料并且如上所述沉积作为覆盖层的水泥和细骨料,允许混凝土的主体固化,并且通过去除水泥将粗骨料暴露在上表面上 和粗骨料之间的细骨料,以暴露在板坯的平坦上表面上的粗骨料。