September 3, 1915. THE COLLIERY GUARDIAN. _______________ LOCOMOTIVES. 461 _______________ ______ COLLIERY HAULAGE ENGINES FOR AIR, STEAM & ELECTRICITY. FORGINGS & REPAIR WORK. V. A- COAL CUTTING MACHINES OF ALL TYPES. ______ MACHINE WORK OF EVERY DESCRIPTION. 15,=Z“- YORKSHIRE ENGINE CO. LTD., mDO™om Westminster, S.W. TelegramsEngine, Sheffield.” ____________________________________ PERFORATED PLATES FOR COAL SEPARATING PROCESS. THOMAS HUDSON LTD., Sheepford Iron Works, COATBRIDGE. PATENT AUTOMATIC I EVANS £n DODD k 1 CANNOCK. Telephone—No. 7 Aberdare. Telegraphic Address—“ Lamps, Aberdare.” _____________________ Approved (Flame) Safety Lamps To meet the requirements of the new Mines Act. THE CAMBRIAN Fitted with Magnetic, Pneumatic, or Lead Locks, Electric Ignition, and Double Gauzes. Suppliers of the “ CEAG ” Electric Miners’ Lamps. Stock always kept. MAKERS OF THE NEW MAGNET UNDERGROUND PATENT SAFETY LAMP RE-LIGHTERS. “SAFETY FIRST” in the SHAFT Tackle. Over 3,000 shaftmen use the Hanley Safety Belt the Holdemrite. Why, well they find it ALL RIGHT to use at risky jobs. Sample sent on approval. A. HANLEY, 21, Alpha Road, Bristol. Handbook C3on Chain Gearing FREE. p ^^OVr1P'RZ’'TrB>V' CANNOT SLIP SI „, ~~ _ y That is one of many reasons why they prove so economical in Power Transmission The Coventry” Chain Co., Ltd. Coventry. E. THOMAS & WILLIAMS Ltd., CAMBRIAN LAMP WORKS, Aberdare, South Wales. _____________________________________________ The Life of Steelwork is Doubled When it is Coated with BITUMASTIC™ “ BITUMASTIC ” Solution effectively Prevents Corrosion, and thus saves Costly Repairs and Renewals. “BITUMASTIC” is a Brilliant Black Colour, Supplied Ready for Use. Greater Covering Capacity and Superior Lasting Qualities than Ordinary Paint. _____ WRITE FOR ILLUSTRATED PAMPHLET TO SOLE MANUFACTURERS— WAILES DOVE BITUMASTIC LI? Newcastle-on-Tyne, And at London, Liverpool, Manchester, Glasgow, Cardiff, Birmingham, Leeds, &c. ’Phones in every office. Telegram®—“ Bitumastic.” ____________ GRIFFIN MILLS STORIEDUST. No. 6 REPORT OF THE EXPLOSIONS IN MINES COMMITTEE, whilst recommending a minimum of 50 °/o passing a 200 x 200 sieve, says emphatically“ THE FINER THE DUST THE BETTER,” con- sequently, STONEDUST PRODUCED BY THE GRIFFIN MILL SYSTEM IS THE MOST EFFICACIOUS PRODUCTION FOR THE PURPOSE, SEEING IT PREPARES:— Percentage Horse Output per hour Passing Power 200 x 200 Sieve Required Dust from South Wales Shale— 1 to tons upwards 83 °/o 25 Dust from Yorkshire and other Shale—1 to tons upwards 87 °/o 25 No other System of Pulverizing can approach the GRIFFIN & GIANT GRIFFIN MILL for Low Cost of Grinding and Fineness of Product. ____ ---- FOR FULL PARTICULARS, APPLY -____ BRADLEY PULVERIZER Co., 37, Walk rook, LONDON, E.C.