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of West End mill, Wellington Street, Leeds
See also Hyde, Dockray and Ambler
1834 Listed as flax, tow and worsted machine makers, brass and iron founders. 
1842 Advert: 'EXTENSIVE SALE of Valuable PLANING MACHINES, TURNING LATHES. DRILLING MACHINES, MACHINE-MAKERS' TOOLS, FOUNDRY IMPLEMENTS. WOODEN and IRON MODELS, and other Effects. Bankrupts' property. Free from Auction Duty. .... Assignees of Dockray and Pinder, Machine Makers (Bankrupts).....at the Mill and Premises, situate in Wellington Street, near Wellington Bridge, Leeds ..... 2 Pairs Glaziers, large Fan Blowing Machine, several valuable Lathes, of various descriptions; Centering Machine, Hand Fluting Machine, with Indexes ; Double Speed Lathe, 0 inch Centre; LARGE SELF-ACTING PLANING MACHINE, to plane both ways, Bed 16 ft. by 3 ft. 6 in.; large Self-acting Slide Lathe, double speed, Bed 15 ft. long,10 in. Centres ; Ditto. 12 feet Bed : Self acting Fluting Machine. 14 Indexes and Iron Trough ; Self acting Slide Lathe, dead Centres, Bed 8 ft. 6 in.; Cutting Engine, with Counter Shafts and 30 Cutters, large slide Lathe, 20 ft Bed, dead Centres, &c. .....'