Helically wound brush

摘要

Brush where in 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.