of 64 Victoria Street, London, SW1.
of 183 Westminster Bridge-road, London SE1.(1922)
of Rose Street, Inverness
1922 The A-I Electric Welding Appliances Company was purchased from the proprietors, Mr James and Mr Dudley Forman, of Messrs, Thomas Forman and Sons as from December 1st 1921 the A.-I. Manufacturing Co, Industry Works, Sunbridge-road, Bradford. The Bradford Works were closed down and the A-I Electric Welding Appliances Company - the proprietor of which was the Rose-street Foundry and Engineering Co - started manufacturing the A-I electric butt, spot and seam resistance welding machines, also electric heating machines at its Inverness Works.[1]
1937 Electric resistance welding machine manufacturers. "A-I" Welders.[2]
1938 A.-I. Electric Welding Appliances Co supplied mobile electric welding plant to London Passenger Transport Board for welding rails underground[3]
1944 James McGregor Sinclair, managing director of A.I. Electric Welding Machines Ltd was awarded an MBE[4]
1969 James McGregor Sinclair, managing director of A.I. Welders Ltd was awarded an OBE[5]
1972 Order for automatic welding equipment received by AI Welders from India[6]
2002 Due to the company restructuring, there was an auction of machine tools - via Henry Butcher and Co.