June 9, 1916. THE COLLIERY GUARDIAN. 1111 ANGANESITE MOST CONVENIENT AND ECONOMICAL-MOST . LASTING AND RESISTING -THE SAFEST AND O _____ __________________________________g oooooooaooooflooooooooooooooQOQoooooooooooQoooooooo i BEST FOR STEAM JOINTS JOHN HUDSON & CO.’S SUCCESSORS 16, Victoria Warehouses, Mansell Street, London, E WOODITEt The best material for Conical GAUGE GLASS RINGS in all sizes and sections For Valves, Joint Rings, Pump Cups, Ram Rings, Packing Rings. Price Liat and full particulars on application to— WOODITE CO., Mitcham Common, Surrey. FOR SALE OR HIRE. Hire terms fur- nished on appli- cation. ROIHNAVtoJi ^iHVfMHciPATiartis; NAYLOR’S APPROVED BIFOLD MARSAUT LAMP. Gives the best light, is the best Gas Detector, and the Safest Flame Lamp procurable. NEW MINES ACT. Approved Miners’ Lamps TO MEET ALL REQUIREMENTS OF THE ACT. Arranged for Electric Ignition and with Mag- netic Lock. Particulars furnished on application. Demonstrations arranged by appointment. J. H. NAYLOR, Central Brass Works, Established 1861. WIGAN. Control lers for all sizes of Colliery Tubs, Tipping Trucks, and for all working conditions. Compressor Type5 6" to 9" compression for heavy shock absorption, 3" or less for cages. Saves the axles, & offers great scope for economy of upkeep. J. & J. NEIL & CO.. Patentees and Makers, 9 3, Hope Street, GLASGOW. British Manufacture Best Quality at Lowest Prices <0 Every description either separate or in cases. SPECIAL 12 in. CARDROARD PROTRACTOR, reading to 1°, at 2«. 6d., postage 6d. ILLUSTRATED CATALOGUE ON APPLICATION. WU MARI INH -Mathematical Drawing and Surveying ■ Bl. 11mnfal 11Wj Instrument Manufacturer, 47, Finsbury Pavement, London, E.C. Established 1851. Factory—HACKNEY, E. British Insulated & Helsby Gables Ld., ELECTRICAL CABLE MAKERS & ENGINEERS. REGD. TRADE MARK. Works: Prescot, Helsby, & Liverpool. SEE LARGE ADVERTISEMENT EVERY FOURTH WEEK. Wi I Icoxs 0 i I s W. iH. WILLCOX & CO. LTD., 32 to 38, Southwark Street, London. Our special Cylinder, Crank Chamber, Turbine, &c., Oils are dependable and economical for all Colliery lighting and power plants. Let us quote for YOUR requirements. A COPY OF OUR^ 736 pp. CATALOGUE, containing particulars of Colliery Engineers’ Stores, will be gladly sent upon Semet-Solvay Coke Ovens SECTION OF OVEN SHOWING SOLID CONSTRUCTION. Strongest in Design. Separate sets of flues to each oven. Very low Maintenance Cost. “DIRECT” AMMONIA RECOVERY PLANT, giving increased yield of Sulphate, with less Labour, and a saving in Steam consumption. THE COKE OVEN CONSTRUCTION CO. L! Howard Chambers, 155, Norfolk Street, SHEFFIELD.