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Crook & Dean's Phoenix Foundry, of Little Bolton, Lancashire
1821 Mention of Crook and Dean, millwrights, Little Bolton.
1825 Mention of Crook and Dean's Foundry, Little Bolton.
1825 'IMPORTANT INVENTION.— A person of the name Roberts, who is at present in Bolton, has constructed an apparatus, which will prove useful and valuable in the highest degree. Its object is the safety of life and property, in cases of fire, or where any noxious vapour exists. It consists of hood and mouth piece, contrived to render the wearer enabled to breathe, with perfect ease and safety in the midst of the densest smoke. In case of dwelling-houses, ware-houses, factories, ships at sea, &c., being on fire, its advantages are incalculable. Roberts exhibited the efficacy of the above extraordinary discovery at mines of lhe Earl of Belcarras, a few weeks since, to the complete satisfaction of those who witnessed it. And lately the recommendation of several persons in Bolton and the neighbourhood, of the highest respectability, he invited some of the principal tradesmen and inhabitants of the town to meet him at Messrs Crook and Dean's foundry, Little Bolton, where he demonstrated the infallibility of his apparatus, to the utter astonishment of a very respectable party of gentlemen. In the course of the trial, he went into a stove-room, in which sulphur, hay, &c., were burning at the same time. He was shut in for the space ot twenty minutes, and came out at the expiration of that time perfectly sound and uninjured.—Had any one without the apparatus remained in the room longer than a minute, it would have been attended with certain death.— Bolton Express.'
1828 Crook and Dean of Phoenix Foundry: Iron and brass founders, manufacturers of steam engines, hydraulic presses, weighing and mill machines, gas light apparatus, sugar mills and constructors of fire proof buildings 
1831 Started building locomotives.