Abstract: A machine (10) for grinding and/or polishing slabs of stone material, such as natural or agglomerated stone, ceramics or glass, comprises: a support bench (12) for the slabs to be machined. At least one working station (14) is provided above the support bench (12), said station comprising at least one pair of bridge support structures (16, 18) situated opposite each and arranged transversely on either side of the support bench (12). First means (19) are provided for performing a relative movement in the longitudinal direction of machining station (14) and slab on the support bench (12). The machine further comprises at least one beam (20, the two ends (22, 24) of which are supported by the support structures (16, 18), and at least one rotating spindle (26) with a sliding vertical axis mounted on the at least one beam (20). The beam (20) is movable transversely on the support structures (16, 18).

Abstract: A multi-purpose machine for wall processing includes a base, a working member and a sliding device that drives the working member slide up and down relative to the base. The base includes a bottom board with moving wheels therebelow, a top board, and several parallel upright posts therebetween. The working member includes a cover and a roller set inside the cover. A built-in motor is set inside the roller. Wall processing tools are releasably fixed on the outside of the roller. A feeding hole is provided on the upper part of the cover and connected with a supply system or an absorbing system. The multi-purpose machine may perform operations including putty scraping, grinding and polishing, painting, cleaning and wall paper removing on the wall to replace human labor, thus realizing multiple purposes, reducing the labor strength, and improving the working efficiency.

Abstract: A grinding machine for grinding bulky workpieces of considerable length, such as frames, columns and tables of machine tools. Said grinding machine comprises at least one machining table on which a workpiece to be ground is placed, at least two columns linked to a single carriage, said carriage moving longitudinally over a base parallel to said machining table, and at least one wheelhead affixed to each of said columns, each one of said wheelheads comprising its own independently operated vertical and transverse drive means and at least one of said wheelheads being capable of angle movement. So, said wheelheads have a common longitudinal movement and independent vertical and transverse movements, so that said wheelheads can work simultaneously.

Abstract: A portable tube cutting apparatus which facilitates smooth, even cuts through a boiler tube-wall includes a frame supporting a movable carriage, a motor driven cutting tool secured to the carriage, and an articulated support means which allows for rotation of the cutting apparatus about a fixed point of securement to the boiler tube-wall and thereby permits lateral repositioning of the cutting apparatus relative to the point of securement to the boiler tube-wall. The apparatus has the advantage of permitting relatively long cuts such as up to about 3 feet to be made in a tube-wall While reducing the amount of time and effort needed to install and set up such apparatus relative to conventional track mounted apparatuses.