October 15, 1915. THE COLLIERY GUARDIAN. 767 PRINCEPS Patent “DEFLECTOR” OIL SEPARATOR. Keith Fans. ! > ■‘•T. kv A k’flgg i" ' ,;x ■ iF.f Capacity, 300,000 lbs. of steam per hour, 60" dia. main. ONE OF THE LARGEST EXTRACTORS MADE IN THIS COUNTRY. PRINCEPS & CO., Engineers, SHEFFIELD. COMPLETE PLANTS ALSO FOR Dust Exhausting, Forge Blowing, Cupola Blast, Smoke Removal, &c. Keith Keith Mine Fan Plant. Induced Draught Plant. James Keith & Blackman C® L™ 27, Farringdon Avenue, LONDON. AND AT Manchester, Newcastle, Cardiff, Leeds, Glasgow, Edinburgh, &c. Telegrams “ Future, Middlesbrough.” COAL DISTILLATION COMPANY, Middlesbrough. BY-PRODUCT COKE OVENS, WITH AND WITHOUT REGENERATORS. HUSSENER & CO LUN SYSTEM. DIRECT RECOVERY SYSTEM. Largest Yield of By-Products. No Re-heating of Gases. BENZOL PLANTS. TAR DISTILLATION PLANTS. Large number of Plants in operation in Great Britain and on Continent. THE BEST PROTECTIVE FOR COLLIERY PLANT IS "BITUMASTIC’’ Solution. WRITE FOR DESCRIPTIVE BOOKLET TO ---o---- View of large Colliery showing 4 Head Gears, Corrugated Iron Buildings, -------- &c. --- Coated 7 Years ago and STILL IN GOOD CONDITION. ---0---- SOLE MANUFACTURERS— WAILES DOVE BITUMASTIC LI? Newcastle-on-Tyne, And at London, Liverpool, Manchester, Glasgow, Cardiff, Birmingham, Leeds, &c. 'Phone* in every office. Telegrams—“ Bitumastic." Also extensively used for grinding COAL. LIMESTONE. PORTLAND CEMENT. PHOSPHATE ROCK. ORES OF ALL KINDS. Full particulars on application to— BRADLEY PULVERIZER CO, 37, WALBR00K, LONDON, E.C. PREVENT GOAL MINE EXPLOSIONS by dusting your mine with stone ground in the GIANT GRIFFIN MILL, As supplied to the leading Collieries. Advantages— MAXIMUM PERCENTAGE OF “FLOUR” OR IMPALPABLE MAXIMUM FINENESS. POWDER. MAXIMUM MM OUTPUT. MINIMUM POWER. XwA> MINIMUM WEAR AND TEAR. I No Auxiliary Apparatus required for / Sk Finishing the Product. taw Heavy Construction. rwr-.lw jEBrf OVER 3,000 GRIFFIN mills installed.