An Improved Valve for Footballs, Pneumatic Tyres and other Purposes.

Abstract

Abstract 9698. Ingram, F. W., [trading as Ingram & Son, J.G.]. April 26. Tyres, pneumatic.-An infating-valve consists of a tube a of india-rubber or other flexible material, secured at its open end in the tyre b, and flattened towards the other end, which is closed, excepting one or more side holes or slits a<2>. When made of india-rubber, the valve is vulcanized in the rolled-up condition shown in Fig. 1, and is normally closed ; it can be opened hy pumping air in through a nozzle c, or by inserting a fluted rod, a doubled wire, or the like. When made of other flexible materials, the valve is rolled up by a coiled spring or otherwise.

Inventors

• 👤 Frederick William Ingram

Bibliographic Details