Abstract: This invention falls into the field of ceramic manufactures, in particular tiles and trim pieces made of porcelain stoneware. Titanium dioxide is applied to the glaze and to the layer covering the tiles so that a photocatalytic oxidization action can be produced acting against the polluting and bacterial agents present in the atmosphere.

Abstract: In a trimming sewing machine of the type adapted to carry out a two-thread overedge stitch, provision is made for a hooked element (15) integrally associated with the upper looper (10), which hooked element has an end work portion (15a) disposed in parallel side by side relation with the end work portion (10b) of the upper looper. The hooked element (15) engages the sewing thread (3) carried by the needle (2) at the beginning of the downward stroke of the needle. Following the downward stroke of the upper looper (10), the hooked element (15) drags along the sewing thread (3) beyond the lateral edge (5a) of the workpiece (5). Thus paired finishing portions (17a, 17b) are formed along the sewing thread (3) and they extend from each of the insertion points of the needle (2) into the workpiece (5) as far as close to the lateral edge (5a) of the workpiece (5).

Abstract: A window regulator having a first guide, defining the route of a sliding window, is engaged in sliding manner by a first slide connected to the window and moved along the first guide by an actuating device having an actuating arm turning about a first axis lying substantially crosswise in relation to the first guide. A portion of the actuating arm defines a second guide extending along a second axis lying substantially crosswise in relation to the first axis and the first guide; and a second slide, supported on the first slide, is connected in sliding manner to the second guide.