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Bull Engine Returned to Steam |
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Broadcaster and journalist Anna Ford will this morning
(Monday 12th May) re-commission the largest known Bull engine in the
world, following a seven-year restoration project carried out by
volunteers at London’s Kew Bridge Steam Museum.
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Bull engine runs for first time in over 60 years |
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Following a number of trial steamings and having carried out some additional restoration work identified during those steamings, the Bull engine was again tested over the weekend of 3rd & 4th November. After a number of tests with minor alterations being made to valve timing and weighting, the Bull Engine finally ran on the cataract and under it's own control, for the first time in 64 years. The time recorded for prosterity was 9.30 p.m. |
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Bull Engine cylider head removed |
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Following initial steam trials of the Bull Engine, it was decided to remove the engine's cylinder head for a closer inspection of the engine's piston and piston rings. This is believed to be the first time a cylinder head had been removed from a Cornish Beam Engine in preservation. |
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Bull Engine steams for the first time in over 60 years |
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Earlier this year, volunteers at the Kew Bridge Steam Museum steamed the Bull Engine for the first time in preservation, moving the engine under steam for the first time in over 60 years. |
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Bull Engine air pump rebored |
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During exploratory work on the Bull Engine's air pump, which is used to remove water and air from the engine's condenser, it became clear that the air pump cylinder, piston and piston rod were not in good condition. As a result of this, it was decided to rebore the air pump cylinder and modify the piston to accept a bronze piston ring.
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Restoration Updates