November 22, 1918. THE COLLIERY GUARDIAN. [supplement PAGE XI.] 1105 Koppers’ Coke Oven Is undoubtedly the most successful Bye-Product Oven on the market. Since its introduction a little over 10 years ago there have been built 15,000 KOPPERS’ OYENS. KOPPERS’ OVENS ARE AT WORK HEATED BY PRODUCER GAS AND BLAST FURNACE GAS. KOPPERS’ DIRECT RECOVERY PROCESS IS THE SIMPLEST AND MOST EFFICIENT SYSTEM OF AMMONIA RECOVERY. PLANTS ERECTED FOR THE RECOVERY OF BENZOL & TOLUOL, FOR TAR DISTILLATION & THE MANUFACTURE OF SULPHURIC ACID. Full particulars on application to -— The Koppers’ Coke Oven end Bye-Product Co., ...Z:'?,"™'.".":;™, 301, glossop road, Sheffield. -JStTsiZ™ J.B. , TREASURE o-CP. KCPRESSURES > VflUXHRLL R5> LIVERPOOL GAUGE CLASS WASHERS LUBRICATORS tic LISTS or PPPl/MT/LM. M55ES ?$! •; A and B Couplings and many others. The 1912 lever has large lateral stops and a wedge-shaped shouldered head. The catch C is not essential. Drop-Forged Shells. Drop-Forged Catches. Drop-Forged Levers. Drop-Forged Couplings. ILLUSTRATED CATALOGUE. SMALLMAN patent HAULAGE CLIPS. British Patents No. 8476 of 1906 ; No. 19533 of 1910 ; No. 9983 of 1911 ; and No. 4362 of 1912. Automatic Detachment. 1912 Pattern ; nine sizes. THE ISCA FOUNDRY COMPANY LTD., RAILWAY PLANT !f GENERAL ENGINEERS, Switches,Crossings,Turntables,Water Cranes,Girders, Bridges, Roofs, Pipes, Pumps, Wagons, Tanks, Engines, Boilers Cranes. Works : NEWPORT, MON. London Office-53, Victoria Street, S.W. 1. Patentee and Sole Manufacturer:— 8 JAMES W. SMALLMAN, Nuneaton, England. f WRIGHT’S FORGE & \ ENGINEERING CO. LTD. • Sole Manufacturers.--------- NEPTUNE FORCE, a. 67, BISH0P8CATE, TIPTON. « LONDON, E.C. 2. BEVER, DORLING & GO. L ° Bowling Iron Works, BRADFORD. Telegrams—“FOUNDRY, BRADFORD.” Telephone—1644 BRADFORD. AGENTS Northumberland and Durham—Mr, W. E. COWENS, Scottish Union Bldgs., 90, Pilgrim St., NEWCASTLE-ON-TYNE. South Yorkshire, Derbyshire and Nottinghamshire— South Wales—Mr. D. LLEWELLIN EVANS, 120 Bute Street, CARDIFF. Manager Fan Department —R. A. YOUNG, 13, Mosley Street, NEWCASTLE-ON-TYNE. SOLE LICENCEES FOR CAPELL FANS. PRE-EMINENT FOR 25 years for efficiency, strength and reliability. New and improved design, giving larger outputs for same size of fan. i RESULT OF TEST. Fan, 12 ft. 6 in. by 7 ft. Revs., 265. W.G., 8 in. Cu. ft. per min., 376,000. H.P. in air, 472. H.P. indicated, 579. Useful effect, 81'5 per cent Estimates for Fans up to the largest capacities.