Improvements in or relating to rubbing, scrubbing or washing boards

摘要

262,645. Sunderland, W. April 21, 1926. Washing-boards are made with their rubbing surface convex so as to conform to the shape of the dolly tub 5. They may be wholly metal, or the rubbing unit 1 may be of metal and carried by a wooden frame 3. The top member 6 of the frame is cut away to conform to the shape of the rubbing surface.