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1850 Listed as Browning & Rigby, Adelphi Iron Works, millwrights, engineers, and general machine makers. Thomas Browning, Engineer, Park View, Eccles; Hugh Rigby (Machine Maker) 3 St Stephen Street, Salford 
1850 Registered design for compound steam engines. 
1851 Partnership dissolved by mutual consent between Thomas Browning and Hugh Rigby
1851 Advertisement: 'To Engineers, Millwrights, Machine Makers, &c. MR. ALFRED LEIGH respectfully announces that he has been favoured with instructions from the trustees of Messrs. Brownring and Rigby, of the Adelphi Ironworks, Adelphi, Salford, to SELL BY AUCTION, without reserve, on Monday and Tuesday, the 16th and 17th days of June next, the Whole of their very Valuable MACHINERY, WORKING TOOLS, &c; all of which are of a superior character and nearly new, by Messrs. F. Lewis and Sons, and can with confidence be recommended to the trade....'. . Note mis-spelling of Browning