The Hooded Fountain Paint Brush: A Dome Shares the Paint Between Both Sides

Paint fed into the middle of a brush clogs its head, and one side of the bristles runs dry. Franklin E. Fornwalt of Harrisburg, Pennsylvania, received US 842,644, patented 29 January 1907, for a fountain brush "for applying paint": a tin holder clamped over the brush carries a reservoir whose floor has a row of apertures under a hollow turning valve, and below it a hood whose dome sends equal paint to both sides of the bristles. This rung works out the flow a brush needs, then folds the holder from aluminium sheet over a 120 mm brush and measures the paint it lays on each side of a stroke.