Hathorn Davey Triple Expansion Engine.

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Uploaded by on Mar 17, 2007

A short clip of the Hathorn Davey engine at Twyford Waterworks Trust, taken on one of the last times before it was shut down for boiler problems. It should be back in steam again in 2008 check the waterworks website for details.

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Uploader Comments (icantfixit)

  • Indeed, a very impressive engine. I did not recognize the valvegear. Mind telling me what valvegear it uses? Did not look like iether Stephenson link or Joy gear.

  • The valve gear is of a type that was devised by an American, George Henry Corliss in the 1840's. Hathorn Davey used "Craig's trip gear".

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  • @GR8TM4N Kew bridge steam museum also have a triple engine, Kempton just a few miles from Kew have the Greatest triple, go listen to that run as its more to size than this one.

  • incredible, i'm glad i found this. nearby we have the Ryhope pumping engines in Sunderland.

  • It looks like the steam valves are eccentric operated with the trip mechanism and dashpots, and the exhaust valves are cam operated without a trip mechanism or dashpot.

  • I've worked on this engine, as a volunteer for TWT. The four rods on the crossheads DO drive waterpumps. The empty crank drove 2 submerged well pumps via a bellcrank setup and these had sufficient lift to pull water up to the softening plant, 50 feet above the engine. The three larger pumps under the engine then pumped water from the softening plant to the reservoir on an adjacent hill, 120 feet higher than the engine, and three quarters of a mile away, 3,500,000 gallons a day, 24 hours a day.

  • Take her to sea Mr. Murdoch, let's spread her legs ... (perverted Captain grin)

  • I believe that Titanic had the same kind of engines. Very Interesting to hear how Titanic's engines sounded

  • is it possible that the waterpump piston is connected to those rods ( in the basement)

  • That is a very unique crosshead construction with the (4) vertical rods.

    Don't think I have ever seen that on a big engine.

  • somebody please make a video on how it works cus i really wanna know

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