"Rail travel at high speeds is not possible because passengers, unable to breathe, would die of asphyxia."
Dionysius Lardner, Professor of Natural Philosophy and Astronomy at University College, London ; 1830
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| Number | Title | Issue Date |
| 4632151 | Non-return valves A non-return valve element comprises a one piece moulding of resilient rubber material, for example a synthetic rubber, which is shaped to include a relatively thick and hence rigid planar rib 1 of which the upper edge 1a includes a cylindrical protuberan... | 12/30/1986 |
| 4603838 | Ball valve seat A ball valve seat is provided which comprises two separate reinforcement members, preferably of metal, embedded in an annular resilient body. The interior of the resilient body defines at one end a part-hemispherical ball valve seat and at its other end, ... | 08/05/1986 |
| 4458833 | Casks and like containers A cask or container for dispensing liquid under pressure is of the type having a top housing with a bung hole therein and an extractor tube extending into the container and in which a top fitting is attached to the housing with means operative thereon to ... | 07/10/1984 |
| 4368831 | Beer keg tapping assembly A cask or container for liquid under pressure having a housing welded to the cask wall around the bung hole, this housing serving as the sole support for a spring loaded ring seal and an extractor tube and its head the latter concentric within the seal.... | 01/18/1983 |
| 4125209 | Coupling head having resilient liner for use with pressurized casks A coupling/dispenser head for pressurized casks for liquids the said head being of inverted shell like form, with a resilient liner therein. The liner serves to blank off the gas pressure introduced through the head from the cask until the cask is broache... | 11/14/1978 |