Device for cleaning or de-icing a surface of a solid body, in particular a windscreen wiper for a windscreen

摘要

1,030,044. Windscreen wipers. A. M. J. E. CELS. Aug. 4, 1964 [July 26, 1963], No. 29283/64. Heading A4F. The edge 4 of a windscreen wiper blade is provided with knife-edge portions 11, 12 which scoop liquid from the windscreen alternately as the blade is oscillated. Brushes 13, 14 are provided at the sides of the blade to assist the cleaning action, detergent liquid being supplied to the brushes through passages 18, 19. To assist in maintaining the blade in contact with the windscreen, wind pressure is applied to rigid or semi-rigid membranes 17 disposed against one side of each brush.