652 THE COLLIERY GUARDIAN. March 30, 1917. THE BRITISH EXPLOSIVES SYNDICATE LTD. 124- ST VINCENT STREET GLASGOW THAMES POWDER N? 2 Charge Limit 22 Ounces NEEDS NO THAWING ---------- SUTCLIFFE'S ------------------ COAL CUTTERS, DISC & CHAIN TYPES, light or heavy pattern, for thin or thick seams, with shallow or deep cuts. Compressed Air or Electrical Drive. Coal-Face Conveyors, unrivalled in capacity, constant in work, noiseless in the face and most easily moved forward. Roadway Conveyors, which are moved freely from the face to admit ripping in the gateway. Hauling Gear, to keep a constant supply of tubs between the engine plane and coal face with instantaneous extension of endless rope. Wire Belting, for conveyors of all kinds. Thomson’s Non-Overwind, simplest, safest, surest, and cheapest. Sutcliffe’s Universal Sounding and Displaying Signalling Apparatus, fully complying with Regulation 95 of the Mines Act. NOTE.—The above machinery is all patented or protect’d, and makers or users of Infring-ing articles will be liable to be prosecuted. FULL PARTICULARS FROM RICHARD SUTCLIFFE, Universal Works, HORBURY, WAKEFIELD, England. TURBON. The LATEST THING in FANS. Equally suitable for Mine Ventilation, forced and Induced draught, or any other purpose. Great strength, simplicity and silence. Highest efficiency. Perfect balance at all speeds. Suitable for all pressures. Resists high temperatures without distortion. No rivets in blades. Manufactured by THE WADDLE PATENT FAN CO. LTD., ---- FOB THE ---- TURBON PATENT FAN CO. LTD., LONDON Address- -y w" yr l^TT^T 'Wr 34. Victoria Street. S-W. Fd J X • SURVEYING INSTRUMENTS Davis’s Cranked Dial. Theodolites, Levels, Barometers, etc. DAVIS’S IMPROVED HEDLEY DIAL WITH CRANKED LIMB, ENABLING SIGHTS TO BE TAKEN TO ANY DEGREE FROM LEVEL TO 90 DEGS. UP OR DOWN. Davis’s Surveying Instruments are used in the majority of Mines in the United Kingdom, the Colonies, and other parts of the World. g Established 1800. — BRASS TIME CHECKS JOHN LAWSON & SONS, Manufacturers of every kind of STEEL STAMPS, LETTERS, FIGURES, RRANDS, STENCIL PLATES, Ac. Roebuck Letter Works, 26, Carver Lane, SHEFFIELD. Telephone No. 577 Save Money - Save Coal - Save Steam By adopting FORREST’S PATENT AUTOMATIC Cylinder DRAIN COCKS on your Compound, Winding, Hauling, and all your Stationary Engines, Steam Winches, &c. (Thousands in use), now fixed on most new Engines turned out by leading Engineers. The Safest Automati 3 Drain Cock ever fixed on Com- pound Condensing Engines, most positive in action. Makers of High-class Gunmetal Gland Taps. Wheel Valves, Ac, Class B For Prices, Particulars and Testimonials, apply Sole Makers, APPLETON & HOWARD, Br“E‘S.”S.”d ST. HELENS, LANCS. Contractors to the War Office. SPECIAL Self-contained MACHINE for CORRECT GRINDING of STONEDUST For FIERY WORKINGS. PLOTTING INSTRUMENTS for Railways, Mining Engineering, and Field work. SEND FOR LIST Ko. 411 A. JOHN DAVIS & SON (Derby) LTD. ALL SAINTS WORKS, DERBY; & 17, Victoria St., Westminster, London, S.W. Telegrams—“ Davis, Derby.” Telephone—240 Derby BRICKMAKING MACHINERY Suitable for COLLIERY SHALES. Richard Scholefield, w*, Leeds. ’Phone 1513. ENQUIRIES SOLICITED. Wire “Brick, Leeds.”