GB420264A - Improvements in brushes and method of manufacture - Google Patents

Abstract

420,264. Brushes. SCHWAB, W. A., 2052, East 69th Street, Chicago, U.S.A. Feb. 12, 1934, No. 4624. Convention date, Feb. 25, 1933. [Class 19] Brushes, particularly adapted to stimulate the growth of hair, eyebrows and eyelashes, comprise stiff bristles 13, Fig. 2, consisting of a central portion 14 of steel, phenolic condensation product or the like and a rubber coating 15. The bristles are preferably set staggered and relatively close together in a base 16 of flexible material such as rubber secured to a back 12. The bristle may have heads 13a to secure them in the base. In this case the stems of the bristles are inserted in the base before the base is secured to the back. The tips 13b are rounded and polished and protrude from the covering 15 preferably made of soft rubber, felt or a composition. The base 16 and sheath 15 are preferably unitary, the stems of the bristles being inserted in a die and moulded with vulcanizable rubber. In a modification, Fig. 3, the bristles 17 are mounted in a hard rubber base 18 being retained by bent portions 17c. The central portions of the bristles are enclosed in soft rubber preferably moulded separately and cemented to the hard rubber. In a further modification, Fig. 4, the rubber sheath encloses the end of the bristles.