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of 38F, Paradise Street, Birmingham 1. Telephone: Midland 4804/5/6. Telegraphic Address: "Yadall, Birmingham"
1720 Company founded.
1868 Patent to William Allday, of Birmingham, Bellows Manufacturer, for the invention of "improvements in forge and other bellows."
1871 Patent: improvements in forge and other bellows.
1876 Advert: William Allday and Son, established 1780. Branston Street Works, Birmingham. Screw-pipe smiths' bellows and many other implements for smiths' use
1884 Thomas Lumley retired from the Partnership with William Allday the younger, and Edmund Allday, in the business of Ironfounders and Engineers, carried on by them at Washington Foundry, Commercial-street, Birmingham, in the county of Warwick, under the style or firm of William Allday, Sons, and Co. The business was carried on under the style of William Allday and Sons.
Like many such companies they turned to bicycle manufacture and sold a range under the Alldays name.
1937 William Allday and Co was a Listed Exhibitor - British Industries Fair. "Alcosa" Bellows. Blowers for Gas and Air. Brazing Hearths. Blowing Fans, low, medium and high pressure and exhaust. Furnaces, Burners and Equipment. Smiths' Hearths. Portable Forges for all markets of the world. (Stand Nos. Ca.811 and Ca.710) 
1975 Patents x 2 - Blowpipes.