146 THE COLLIERY GUARDIAN. January 18, 1918. THE BRITISH EXPLOSIVES SYNDICATE LTD. 124-ST VINCENT STREET GLASGOW THAMES POWDER N° 2 Charge Limit 22 Ounces SPECIAL Self-contained MACHINE for CORRECT GRINDING of STONE-DUST For FIERY WORKINGS. BRICKMAKING MACHINERY Suitable for COLLIERY SHALES. Richard Scholefield, frte Leeds. •Phone 1513. ENQUIRIES SOLICITED. Wire “Brick, Leeds.” PRINCEPS PATENT “DEFLECTOR” OIL SEPARATOR. Capacity, 300,000 lbs. of steam per hour, 60" diameter main. ONE OF THE LARGEST EXTRACTORS MADE IN THIS COUNTRY. PRINCEPS & CO., Engineers, SHEFFIELD. GOODALL CLAYTON & Co. Lo. MIRRLEES ^WATSON LEEDS. Telegrams :— “ Vertical, Leeds.” Telephone :—19S2, Leeds. II a. Condensers, Surface or Jet Types, Fitted with Reciprocating, Rotary or Ejector Air Pumps MAKERS AND ERECTORS OF SCREENING PLANTS, PICKING BELTS, SCREENS, PITHEAD GEARS. 'NtWCo.Lo-1371. Multi-Jet Condenser, fitted with Mirrlees-Leblanc Rotary Air Pump. Send for Illustrated Catalogue BUNKERS, ROOFS, STEEL STRUCTURAL WORK, &c. GAS RETORT INSTALLATIONS, CONVEYING PLANTS. Representatives H. L. CHESTON, Clarendon House, Boston Spa, lorks. W. OGDEN DAYSON, 1. Mount Street. Swansea for South Wai®' T he Mirrlees W atsonCo. Ltd. Specialists in Condensing Plants, Glasgow. London Office - - 122, Cannon Street, E.C. 4. Cable Codes used: Telegrams : Western Union “ Universal ” and Mirrlees, Glasgow.” “5 Letter Edition,” Liebers, Telephones : Engineering, A.B.C. and A1. 1781 South, 1782 South, 69 Kinning.