GB606536A - Improvements in and relating to brushes and the like - Google Patents

Abstract

606,536. Forms of bristles rotary brushes ; grinding tools; handles. FEW, E. J. L. Dec. 8, 1945, No. 33253. [Classes 19, 60 and 61 (i)] A -brush for hand or mechanical use is made with a head formed from flexible and resilient strips coated with, or embodying, an abrasive material. In a flat wand brush the head is made by laying side-by-side a plurality of strips which are slit into narrow fingers. The uncut ends of the strips are secured together and to the brush handle by a metal head. Instead of layers of strips a strip 20, Fig. 3, may be folded to form a circular shape in cross-section and its base attached to the handle by a casing 22. The base of the brush head may be permanently mounted in a holder provided with a rib 24, Fig. 6, and the securing casing 25 mounted on the brush handle has a corresponding slot 27 and is made to open and close by a hinged part 28 so that a worn head can be replaced, a pin being provided on the casing 25 to engage over-lapping coils 30 to grip the strip holder. Alternatively, the edges of the casing may be curled back at 31, Fig. 9, and drawn together by a sliding clip 32, or the part 28 may be made detachable and secured in or released from the casing by screws and nuts. A brush for mechanical use may comprise a disc provided with central bearing and having peripheral holes in which strips such as 20, Fig. 3, cut into fingers are secured. In another form, Fig. 16, a central disc 36 has tranverse strips 20 with intervening spacing members placed around the periphery and held in position by side plates 40 having inturned edges 41, the plates being held together by a bearing member 37 or by bolts. Fig. 19 shows a wheel made by cutting strips of abrasive material into discs 40 having fingers 41, and spacing discs 42, the whole being held together by a central bearing 37 which may grip on to the discs or on to metal discs placed on the outside. The strip material may be waterproofed. Reference has been directed by the Comptroller to Specifications 7086/99, [Class 60], 445,512, 574,299 and 577,649.