GB255269A - Fountain pen - Google Patents

Abstract

255,269. Attula, E. F. Sept. 23, 1925. Self-filling reservoir pens.- In a piston self-filling fountain pen of the type provided with a filling-tube and in which ink drains directly to the nib when in use, ink is induced on the downward movement of the piston, and the feed-bar and reservoir are put into communication, and the filling-tube is closed at the conclusion of the filing-movement of the piston. The piston 5 is provided with a hollow rod 9 surrounding the filling-tube 8 which is in communication with a filling-duct 7 in the feed-bar, sufficient space being left between the parts 8, 9 to permit the passage of ink. In filling, ink passes up the tube 8, through the rod 9, and into the reservoir through an aperture 13. In use, ink flows to the nib by way of passages or recesses 4 in the wall of the barrel. For cleaning purposes, liquid can be drawn in through the feed-duct on the outward movement of the piston and ejected on the return movement. During filling and cleaning, communication between the main reservoir and the nib is interrupted by the piston. The rear end of the tube 8 is closed on the completion of filling by a valve 12 on the end of the rod 9.