Abstract: An expander roller for a fold-free expansion of foils, webs, and sheet materials in a width dimension. The expander roller has a central metal axle mounted in a surrounding synthetic tube with placed on its circumference a grid of implanted brush plugs in an axial direction under an angle alpha and with a mutual distancing and in tangential direction under a center angle beta and with a mutual distance. The roller provides a perfect expanding or stretching of thin widths of different materials.

Abstract: The invention concerns a dish brush (1, 11) for conventional sweeping machines for cleaning, brushing or sweeping paved surfaces, wherein special constructed sweeping elements (4) and steel cable plugs (5) both waste and weeds remove from different types of paved surfaces. The mentioned sweeping elements (4) are fastened with welds (8,9) from the top side of the raised contour edge (2) through slit openings (6,7) and the steel cable plugs (5) are fastened with a weld (10) from the bottom side of said contour edge (2). The advantage is a well applicable sweeping and weeds removing dish brush (1,11) and which can be manufactured in a very economical way.

Abstract: The invention relates to a brush parts holder (2) being slidable in segments with sliding elements (7) in corresponding executed circumferential elements (8) of a customary brush core (1) of a brush machine, mostly a snow brush machine. The brush parts holder (2) can have different embodiments for receiving brush parts (3). A possible embodiment can also be dovetail shaped with basic holders (12) with brush threads. The advantage of using brush parts holders (2) is, that the heavy brush cores need not to be dismounted for replacing brushes, this having economical advantages.

Abstract: The invention relates to an improved composite brush core (1) for taking up not shown brush elements between connecting blocks (16). The brush core (1) composed of double-walled segmental parts (5) comprises between the inner wall (10) and the outer wall (11) two type of ribs (12,13) placed in alternate position for coupling said parts (2) in an easy way. In this way a brush core is obtained with a flexible desired length (L) for mounting to brush machines of various types.

Abstract: The invention relates to an improved composite brush core (1) for taking up not shown brush elements between connecting blocks (16). The brush core (1) composed of double-walled segmental parts (5) comprises between the inner wall (10) and the outer wall (11) two type of ribs (12,13) placed in alternate position for coupling said parts (2) in an easy way. In this way a brush core is obtained with a flexible desired length (L) for mounting to brush machines of various types.