Abstract: A knob is screwable to a tile spacer-leveler for together defining a tile alignment device. The knob comprises (i) a body, (ii) elastically-deformable connectors on the knob body, (iii) first and second fixing elements comprising respective threaded slots, supported by the connectors and arrangeable in a first arrangement wherein the threaded rod of a tile separator can be inserted into and removed from the threaded slots without screwing in a second arrangement in which the rod insertion and removal takes place only by screwing, (iv) a blocking element separated from the knob body for elastically deforming the connectors to change the arrangement of the first and second fixing elements to (a) insert the rod between the threaded slots of the first and second fixing means without screw-tightening thereof, (b) screw the knob to the threaded rod with the fixing elements in the second arrangement to align the tiles, and (c) remove the threaded rod without screwing.

Abstract: This invention relates to a leveling and aligning device for installing tiles and which comprises a wedge for leveling the tiles and a main body; more specifically, the main body has a supporting base and at least one vertical member extending along an axis substantially perpendicular to the base and connected to the supporting base along a preferential fracturing line; the first vertical member has an opening extending from the supporting base, designed to receive the leveling wedge, and a contact portion designed to engage with the leveling wedge; the first vertical member comprises at least one pair of first side tabs having a thickness greater than the thickness of the first vertical member.

Abstract: This invention relates to a leveling and aligning device for installing tiles and which comprises a wedge for leveling the tiles and a main body; more specifically, the main body has a supporting base and at least one vertical member extending along an axis substantially perpendicular to the base and connected to the supporting base along a preferential fracturing line; the first vertical member has an opening extending from the supporting base, designed to receive the leveling wedge, and a contact portion designed to engage with the leveling wedge; the first vertical member comprises at least one pair of first side tabs having a thickness greater than the thickness of the first vertical member.

Abstract: The invention relates to a base (2) for restingly receiving tiles to be cut, comprising: a surface (13) for restingly receiving a tile; and a blade (4) for encountering a lower surface of the tile during a stage of scoring the tile. The rest surface (13) is provided with a depression or slit (12) of such dimensions as to contain a portion of a rotary cutting disc (14) of the tile when the tile is resting on the rest surface (13). The invention also relates to a tile-cutting machine (1), comprising the base (2). The invention further relates to a kit and a method for adapting a manual tile-cutting machine to use with a group comprising a rotary cutting disc (14).