There's a huge gas container in the middle that's attached to the vertical steel girders with wheels, and when the gas pressure increases, the container slides up the girders (out of an underground water tank), increasing its volume, and thus lowering gas pressure
(King's Cross, London, England)
King's Cross, London, England    map
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England, London, Gasometer, gasometer, St Pancras, Regent's Canal, nature, King's Cross, Camden, industrial landscape, architecture, photography, stock photography agency, travel photography, picture, image, buy, photo store, licensing, illustration, commercial use.
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