June 7, 1918. THE COLLIERY GUARDIAN. 1129 WET SHAFTS MADE WATERTIGHT BY OUR CEMENTATION PROCESS. SAVES COAL and LABOUR and INCREASES OUTPUT BY DOING AWAY WITH PUMPING. Llay Hall Collieries, Wrexham, 2 wet shafts, linings cemented. Monk Bretton Colliery, Barnsley. Wrexham and Acton Collieries, 2 wet shafts, linings cemented. Wigan Coal and Iron Co. Ltd., Parsonage Colliery, Leigh, Lancs., 2 wet shafts, linings REFERENCES: cemented. Risehow Colliery Co. Ltd., Flimby, 2 wet shaft linings being cemented. Pinxton Collieries Ltd., Pinxton Collieries, Alfreton, 1 wet shaft lining being cemented. John Brown & Co. Ltd., Rotherham Main Colliery, 2 shafts cemented. SHAFT SINKING BY FREEZING OR CEMENTATION. Llay Main Collieries, Wrexham, 2 shafts sunk by Freezing. SIMON-CARVES I? mst., MANCHESTER Phone : 8200 City, Manchester (8 lines). Telegrams: “ Simcar, Manchester.” AUTOMATIC DUMPING WITH MONOCABLE SYSTEM. f ROPEWAYS limited, 2, Eldon Street, South Place, London, E.C. 2. Illlllllllllllllllllllllllll CONSTRUCTORS OF Illlllllllllllllllllllllllll Aerial Ropeways On the “ROE” Systems. FOR the transport of all classes of material over any ground, and for the formation of dumps, spoil banks, &c. Installations at present in opera- tion with carrying capacities of 200 tons per hour and lengths of 30 miles. Telephone—12780 Central. Telegrams—“Ropeways, London” AUTOMATIC DUMPING WITH BICABLE SYSTEM. TURBON. The LATEST THING in FANS. Equally suitable for Mina Ventilation, forced and induced draught, or any other purpose. Great strength, simplicity and silence. Highest efficiency. Perfect balance at all speeds. Suitable for all pressures. Resists high temperatures without distortion. No rivets in blades. Manufactured by THE WADDLE PATENT FAN CO. LTD., --- FOR THE - TURBON PATENT FAN CO. LTD., JDCJUi’ Address— -