February 21, 1913. THE COLLIERY GUARDIAN. 381 —A— .. trade ••• • • MARK • • • INDUCED DRAFT FAN IS A GOOD INVESTMENT HTHE power to drive the Fan * varies from 3/4ths to 2 °/0 of the total power generated, while the saving frequently amounts to from 15 to 20 °/0. Send for Catalogue IS E. THE cost of a “Sirocco” Induced Draft Plant is about 30 to 40 °/0 of that of a chimney of equal capacity. INCREASES the steaming capacity of existing boilers and thereby increases the Works production. REDUCES the Coal Bill be- cause cheaper coal can be used than with natural draft. PERMITS the use of the waste heat in the flue gases by means of economisers, superheaters, &c. 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., ------------- FOR THE - TURBON PATENT FAN CO. LTD., LLANELLY. WAILES, DOVE & Co.’s Patent BITUMASTIC Solution -------------- GIVES -- PERMANENT PROTECTION FROM CORROSION TO ALL IRONWORK. A BRILLIANT BLACK COLOUR. SUPPLIED READY FOR USE. EASILY APPLIED BY UNSKILLED LABOUR. CHEAPER THAN ORDINARY OXIDE PAINTS, OWING TO ITS GREATER COVERING CAPACITY AND LASTING QUALITIES. WRITE FOR PAMPHLET OF FULL PARTICULARS TO- Head Office—NEWCASTLE-QN-TYNE. Also at London, Liverpool, Manchester, Glasgow, Cardiff, Birmingham, Leeds, Hull, &c. Every Office on the Telephone - Telegrams “BITUMASTIC.” PLOWRIGHT BROS. LTD., Brampton Iron Works, Chesterfield. Speciality- COAL SCREENING & CONVEYING. SECTION OF SCREENING PLANT AT BENTLEY COLLIERY, DONCASTER, - J CONSIDERABLY OVER WO PLANTS H Estimates and Designs on application. dgent for South Wales: A. LEIGHTON STEVENS, 15, Fields Bead, Newport, Mon. WORK IN BRITAIN COLONIES. Brussels Exhibition : “ Grand Prix:” Allahabad, 1910. Roubaix Exhibition, 1911: “Grand Prix.” H opkMnsWn S ( .......I [ K JI JC JI J[ Jl J Sheltered Seat Trycock ,.’L ■ - For - WATER GAUGES. SPECIFY FIG. 6685. Sent on Approval. Fig. 6685. ADVANTAGES NO ASBESTOS PACKING TROUBLES. No plugs to work loose and leave the packing faces, causing cutting and leakage. No circular action to cause grooving. Easy method of operating, as there is no packing fric- tion to overcome. Is not affected by expan- sion. Large outlet for discharge of sediment, &c. Self Cleansing. Main valve opened and closed at atmospheric pres- sure, which overcomes the cutting action of the steam and water at the point of opening and closing. VALVE AND SEAT OF HOPKINSONS “PUTNAM” METAL, which does not cut and score like gunmetal & other alloys. Upwards of 500 tons of Standard Steel Castings kept In stock. We can give immediate delivery of iron and steel valves. Write for ilustrated specifications and catalogues free. J. HOPKINSON & C9 L9 Huddersfield. Matter* of Patent Safety Boiler Mountings and Valves For High Pressure Superheated Steam, High-class Exhaust and Water Sluice Valves for Condensing Plants, &c., Automatic Exhaust Valves, Reducing Valves, Steam Traps, &c., &c. Depots and Showrooms—London, Glasgow, Edinburgh, Cardiff. No. 2S6. Oldham, Blackpool, Paris & St. Petersburg.