July 5, 1918. THE COLLIERY GUARDIAN. [supplement PAGE XV.] 51 Coal Saving For Collieries. The Boiler House. In the average Colliery 7 % of the • coal raised is used in the boiler house and is not available for sale. We are able to save 20-—40 % of this large amount of coal ' because the average colliery i boiler plant is out-of-date and only running on an efficiency of 50 % Further, we are prepared to re- organise any boiler plant entirely at our own expense, and be paid only out of the savings. We shall be glad to explain our proposition personally ’ or by letter, and are prepared to visit your Colliery free of charge and give you our opinion of the working of your boiler-plant. grownlw & (f»tccn Xtd, TECHNICAL CHEMISTS & ENGINEERS, SPECIALISTS IN FUEL ECONOMY, 2, AUSTIN FRIARS, LONDON, E.C. 2. Telephone - - - - 6292 London Wall. Manchester - - 30, Cross Street. Glasgow ... 94, Hope Street. Laboratories and Testing Station, Church Street, Cheetham, Manchester. HALLITE HIGH PRESSURE STEAM AND MOTOR JOINTINGS K ■ A STOCKED BY Millfurnishers, Ironmongers & Shipchandlers, &c. HALL & HALL, 47, Leadenhall Street, London, E.C.3 Telegrams—” Turps, London ” Telephone—Avenue 6366 (3 lines). Twenty-five Years’ Experience gives us Efficient Grasp of Haulage i Problems. During this period we have proved in every instance that the simplicity of design and reliable construction of Heywood & Bridge’s Improved Patent Friction Clutches — have no equals for COLLIERY Haulage. They may be applied to existing drives. Stops and starts the heaviest loads, withput shock or jar. David Bridge & C?Ijp Castleton Ironworks, Castleton, W Manchester. London Address, 35 Queen Victoria St E.C, Write for 200 page Illustrated Catalogue C 33, showing suita- bility to every conceivable drive. HETWOOO A BRIDGE* patent friction clutches AND COMPLETE HAULING GEARS I* NEWTON, CHAMBERS * & Co. Ltd., THORNCLIFFE IRONWORKS, near SHEFFIELD. ESTABLISHED 1793. TANKS in Cast Iron or Steel. GENERAL CASTINGS, CONSTRUCTIONAL STEELWORK. CONTRACTORS to the ADMIRALTY, WAR OFFICE, and CROWN AGENTS tor the COLONIES. Telegrams—“NEWTON, SHEFFIELD.” Telephone No. 2200 Two Lines, " 111 ."■ ■Jill* IStead8CuWt„ FILES MANOR WORKS S HETFIELD p--------- ----------------- *1 Jefeyrwru STEADFAST SHEFFIELD J^ftfane.CENTRALSni IllULiini1-"1 T. E. COPLEY & CO Mowbray St, SHEFFIELD. Manufacturers of— . , COAL CUTTER PICKS, MINING DRILLS, SPECIAL TOOLS AND STEEL OF ALL DESCRIPTIONS. Tel. No. 4033 Central. llllllllliiintiiii iiinniiiiiliinillllllll GEORGE ANGUS & CO. LTD., NEWCASTLE-ON-TYNE. CONVEYOR BELTS . of ALL DESCRIPTIONS. I SEND FOR PRICES. | 4nd at London, Liverpool, Birmingham, Manchester, Leeds, Glasgow, Cardiff, TilillllllllllllllllllllllllllllllllllllllllltllllllllUllllllllll^And JOHANNESBURG.