MOLD FOR PAVING SLABS Russian patent published in 2022 - IPC B28B7/02 

FIELD: construction.

SUBSTANCE: invention relates to construction of pedestrian roads and sidewalks. Form for paving slabs contains a metal square flat horizontal bottom, along the perimeter of which vertical walls are fixed, the planes of which are installed at an obtuse angle to the plane of the bottom, forming casting slopes. Gripping handles are installed on outer surfaces of opposite vertical walls. Vertical walls along bottom perimeter are made in the form of two circuits, fixed circuit and movable circuit. Fixed contour is made in the form of vertical walls on the side of handles, made along the length of not less than half the length of the side of the bottom in the cross-section of the V-shape, with fixation of lower ends on the periphery of the bottom plane and connected to each other by means of a common transverse vertical wall fixed on the periphery of the bottom plane. Movable circuit is made in the form of a U-shaped configuration. Horizontal component in the cross-section of the V-shape is connected by means of vertical hinges to the vertical components in the cross-section of the V-shape. Horizontal component includes a composite vertical wall made of two parts, the length of which is more than half the length of the bottom side, with possibility of interaction with each other at mutual rectilinear movement and fixation in intermediate positions by means of screw fixing element. Lower end of the composite vertical wall is made with possibility of movement along the bottom plane with subsequent fixation of the protruding part of the external component of the V-shaped form in the limiter on the bottom periphery. Vertical components of the U-shaped configuration, the length of which is more than half the length of the side of the bottom, are made with the possibility of moving relative to the vertical walls on the side of the handles of the fixed contour both along the guides, with subsequent fixation in intermediate positions by means of screw fixing elements. On external surfaces of vertical walls on the side of handles of fixed contour there are horizontal grooves along the whole length of possible interaction with tips of screw fixing elements.

EFFECT: possibility of making specimens of tiles of required configuration without performing additional mechanical cutting operations.

1 cl, 8 dwg