Entwurf und Realisierung eines Multiprozessors

There is disclosed an apparatus for and a method of making a brush wherein bristle tufts are bound to a brush core by a helically wound notched strip of a suitable material such as metal spaced radially of the core, the roots of the bristle tufts passing through the notches in the strip. The strip has longitudinally spaced formations integral therewith for spacing the strip radially of the brush core, thereby avoiding the use of a further, separate strip for that purpose. The bristle binding strip is notched as it is fed toward means for feeding bristles to the notched strip to form bristle tufts, and the bristle tufts and binding strip are fed to the brush core to be wound thereon, such notching also forming strip spacing tabs. In one embodiment (a) of the machine and method the notches and tabs are formed along only one edge of the binding strip; in another embodiment (b) of the machine and method the longitudinally spaced notches and tabs alternate from one edge of the strip to the other, bristles being fed to both edges of the strip. Each of the brushes produced by machines and methods (a) and (b) may have interfitting formations on their opposite edges whereby the strip when wound on the brush core has a sheath of interfitting convolutions of such strip, thereby presenting a stronger bristle tuft retaining and bristle root protecting layer.