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This one has lots of linked records under it: https://collection.sciencemuseumgroup.org.uk/documents/aa110...

Including the interestingly-named "Works photographic negative of fan house before explosion, Hulton": https://collection.sciencemuseumgroup.org.uk/documents/aa110...

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After a little googling, I think this might refer to Hulton colliery, where there was a bad underground explosion (ignition of coal dust and gas) in 1910, killing 344 people. This long account of the accident https://www.nmrs.org.uk/mines-map/accidents-disasters/lancas... talks about the large electric fans used to ventilate the mines.

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