March 22, 1918. THE COLLIERY GUARDIAN. [supplement PAGE XI.] 617 THE STRONGEST PERMITTED No. 3. ARRANGE TRIALS WITH NOBEL’S EXPLOSIVES CO. LTD., GLASGOW. TUBE MANUFACTURERS EDWIN LEWIS & SONS LTD., WOLVERHAMPTON. Works: MONMORE GREEN and ETTINGSHALL. LIVERPOOL Warehouse: 58, SOUTH JOHN STREET. Telegrams: “LEWIS, WOLVERHAMPTON." Telephone: Na. 1147 WOLVERHAMPTON (Private Brandt Exchangel. ‘Russell’Steel DOGSPIKES For HIGH CLASS QUALITY and PRACTICAL UTILITY are UNSURPASSED. In use throughout the world. Large Stocks of all sizes held. JOHN G. RUSSELL, V Clydesdale Spike Works, -L WISHAW. SCOTLAND* t BEVER, DORLING & GO. LTD Bowling Iron Works, BRADFORD. ORMEROD’S IMPROVED PATENT SAFETY LINKS For the effectual prevention of Accidents from Over- winding. THE BEST AND MOST RELIABLE SAFETY DETACHING HOOK YET INVENTED. Advantages and full particulars on application. Sizes up to 10 Tons working load in Stock or Progress. DIPLOMAS OF HONOUR AWARDED TORONTO, LONDON & OTTAWA, CANADA, August, September and October, 1898. PATENTEE <$• SOLE MANUFACTURER-— EDWARD ORMEROD, Atherton, nr. Manchester. 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. ■ 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.