A floor leveling apparatus and method for cutting parallel grooves in a hardened body which is configured to assist in utilizing a grinder to finish surfaces in a planar manner.

According to a processing method of a stone composite board, the two sides of a natural stone board are ground and flattened until a preset standard value of thickness variation is reached, then the surface planes and base material layers are subjected to pressure-compositing through adhesive layers, afterwards splitting is conducted, and the natural stone layer is subjected to calibrated planing with diamond roller and surface treatment to obtain the ultra-thin stone composite board.

According to a processing method of a stone composite board, the two sides of a natural stone board are ground and flattened until a preset standard value of thickness variation is reached, then the surface planes and base material layers are subjected to pressure-compositing through adhesive layers, afterwards splitting is conducted, and the natural stone layer is subjected to calibrated planing with diamond roller and surface treatment to obtain the ultra-thin stone composite board.

A method and device for manufacturing a bevelled stone, particularly for a timepiece are disclosed. A precursor is produced from a mixture of at least one material in powder form with a binder. The method includes pressing the precursor so as to form a green body, using a top die and a bottom die comprising a protruding rib, sintering the green body so as to form a body of the future stone in at least one material, the body including a peripheral face and a bottom face provided with a groove, and machining the body including a substep of planning the peripheral face up to the groove, such that an inner wall of the groove forms at least a flared part of the peripheral face of the stone.

Methods and devices for planing ice are described that include at least receiving, at a planing apparatus, an elongate ice ingot, feeding the elongate ice ingot at a configurable rate through an opening in a cutterhead assembly of the planing apparatus, and planing, by the cutterhead assembly, a plurality of surfaces of the elongate ice ingot at a predefined depth as the elongate ice ingot is fed linearly through the opening of the cutterhead assembly. The planing may result in a planed ice ingot.

Methods and devices for planing ice are described that include at least receiving, at a planing apparatus, an elongate ice ingot, feeding the elongate ice ingot at a configurable rate through an opening in a cutterhead assembly of the planing apparatus, and planing, by the cutterhead assembly, a plurality of surfaces of the elongate ice ingot at a predefined depth as the elongate ice ingot is fed linearly through the opening of the cutterhead assembly. The planing may result in a planed ice ingot.

Systems and methods for treating concrete, which includes the steps of wetting a surface of concrete with colloidal silica, allowing time for the colloidal silica to penetrate the concrete surface, and cutting the surface of the concrete with a bladed or segmented tool wherein the longitudinal blade or edge portion is positioned approximately at an angle between 30 degrees and 90 degrees relative to the surface of the concrete.

Systems and methods for treating concrete, which includes the steps of wetting a surface of concrete with colloidal silica, allowing time for the colloidal silica to penetrate the concrete surface, and cutting the surface of the concrete with a bladed or segmented tool wherein the longitudinal blade or edge portion is positioned approximately at an angle between 30 degrees and 90 degrees relative to the surface of the concrete.

A machine (1) for machining slab materials (3) is described, comprising: a working plane (2) configured to support a slab material (3) to be machined; a first tool-holder electrospindle (11) associated to a respective supporting body (33), the first electrospindle (11) and the respective supporting body (33) being supported above said working plane (2) by a respective supporting equipment (12) perpendicularly with respect to the working plane (2) and configured to move the first electrospindle (11) and the respective supporting body (33) about a rotation axis (Z) perpendicular to the working plane (2); a moving apparatus (14) configured to move the equipment (12) in parallel to the working plane (2) and along directions (X, Y) perpendicular to one another; at least a second tool-holder electrospindle (45), rotationally and translationally integral with the first electrospindle (11), supported above the working plane (2) in parallel to the first electrospindle (11) by a respective supporting arm (47) slidably supported by the supporting body (33) of the first electrospindle (11); a first actuator device (55) active to move the supporting arm (47) and the second electrospindle (45) supported by the same towards and away from the first electrospindle (11) in parallel to the working plane (2) and along a direction substantially perpendicular to a cutting plane extending perpendicularly to the working plane (2); and a second actuator device (63) associated to the supporting arm (47) of the second electrospindle (45) and configured to move the second electrospindle (45) along a direction perpendicular to the working plane (2) independently of the first electrospindle (11).

A machine (1) for machining slab materials (3) is described, comprising: a working plane (2) configured to support a slab material (3) to be machined; a first tool-holder electrospindle (11) associated to a respective supporting body (33), the first electrospindle (11) and the respective supporting body (33) being supported above said working plane (2) by a respective supporting equipment (12) perpendicularly with respect to the working plane (2) and configured to move the first electrospindle (11) and the respective supporting body (33) about a rotation axis (Z) perpendicular to the working plane (2); a moving apparatus (14) configured to move the equipment (12) in parallel to the working plane (2) and along directions (X, Y) perpendicular to one another; at least a second tool-holder electrospindle (45), rotationally and translationally integral with the first electrospindle (11), supported above the working plane (2) in parallel to the first electrospindle (11) by a respective supporting arm (47) slidably supported by the supporting body (33) of the first electrospindle (11); a first actuator device (55) active to move the supporting arm (47) and the second electrospindle (45) supported by the same towards and away from the first electrospindle (11) in parallel to the working plane (2) and along a direction substantially perpendicular to a cutting plane extending perpendicularly to the working plane (2); and a second actuator device (63) associated to the supporting arm (47) of the second electrospindle (45) and configured to move the second electrospindle (45) along a direction perpendicular to the working plane (2) independently of the first electrospindle (11).