GB190502671A - Improvements in Fountain Pens. - Google Patents

Abstract

2671. De la Rue & Co., T., and De la Rue, E. Feb. 9. Pens, reservoir. A pen which can be filled without the use of a separate filler is provided with a piston c, which normally rests at the rear end of the barrel a but can be engaged by the end of a rod b secured to a screw cap b<1>. The piston is retained in its normal position by a pin or pins on the barrel which engage bayonet slots c'. To fill the pen, the cap b<1> is unscrewed and the rod b drawn out until a pin b<2> thereon engages a bayonet slot c<2> in the piston. On rotation of the rod, the piston is freed from the pin a<2> and can then be pushed along the barrel until it meets a stop a<3>. On the rod b being again pulled out, ink can be drawn into the pen. A vent a<4> in the barrel permits the escape of any ink which may pass behind the piston. The head of the rod b forms a valve which co-operates with a seat d to regulate the supply of ink. The feed e has two ink-ducts e<1>, one above and one below the nib.