October 18, 1918. THE COLLIERY GUARDIAN. 831 [SUPPLEMEXT PAGE VII.] SHEFFIELD. 'PHONE: No., 830 & 833 (three lines). TELECRAMS: "STABILITY,SHEFFIELD.” MUNITIONS. IRON, STEEL,BURNT METAL,' TURNINGS, AND ANY OBSOLETE PLANT. 'good &ni)edtment. PROVENDER Prepared in Half Time with Half Labour. DRAWINGS, SPECIFICATIONS, for Complete Plants from 5 cwt. to 5 tons per hour. IMPROVED PATENT DUST EXTRACTORS. Patent Mixers (for Mixing Food). CRUSHERS and SIFTING MACHINERY Telephone—3241 (2 lines). Telegrams—Elevator, Leeds.” GEORGE PORTEUS, Engineer, LEEDS. Ferodo Friction Surfaces. The success of Ferodo fabric has demonstrated how great the need was for it. It is now used in every branch of engineering —wherever brakes and clutches are to be found. It is the most trustworthy lining made, stringent tests proving the quality of each weaving before it leaves our works. If you are interested in increasing the margin of safety on your winders or obtaining a larger output from your plant—let us give you exact data which will enable you to employ Ferodo fabric to the greatest advantage. Our unique experience, extending over 20 years, is entirely at | your service. FRICTION SURFACES. Contractors to the War Office and Admiralty, London General Omnibus Company, and Underground Electric Railways of London and Paris. List H from THE HERBERT FROOD CO. LTD., Work.-CHAPEL-EN-LE-FRITH. Depots at London, Birmingham, Belfast, Bristol, Cardiff, Edinburgh, Glasgow, Liverpool, Manchester & Newcastle. Agent, for India: THE ASBESTOS & BELTING CO.. C4 3 & 4, Waterloo Street, CALCUTTA. ORMEROD’S IMPROVED PATENT SAFETY LINKS 8 i "OS 1 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 fr SOLE MANUFACTURER— EDWARD ORMEROD, Atherton, nr. Manchester. You Will Try This Valve BECAUSE IT’S THE “BETALL” RENEWABLE It’s made in the Steam Users’ Interest for High Pressures and Superheated Steam. SEND FOR CATALOGUES FREE. Est, 1877. Over 2, ooO British Steam Users are now using the “ BETALL ” Valves, JAMES BALDWIN & CO., KEIGHLEY. Engineers and Founders. John Russell & Co. Ld ALMA TUBE WORKS, WALSALL OF ALL KINDS AND FOR ALL PURPOSES On Admiralty List of Contractors. BEVER, DORLING & CO. LTD 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. Estimates for Fans up to the largest capacities. GALLOWAYS LIMITED, 63&%Xi. MANCHESTER. GALLOWAY PATENT BOILERS. ENGINES: BOILERS FOR COLLIERIES, STEELWORKS, FACTORIES, PUMPINC, &c. Write for Particulars. 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