August 13, 1915. THE COLLIERY GUARDIAN. 315 k L ■ PLOWRIGHT BROS. LTD., Brampton Iron Works, Chesterfield. To British Users of German-made Coke-Oven Plant. Since the outbreak of war we have been replacing badly made German driving chains and wheels on many coke-oven plants in this country. May we attend to yours ? If so, please write us. Speciality— COAL SCREENING i CONVEYING ■.« •».. h; ',5. :'Iff Hi'?;.' ■' '■ * SECTION OF SCREENING PLANT AT BENTLEY COLLIERY, DONCASTER. On War Office and Admiralty Lists. HANS RENOLD LTD., Dept. 42, Burnage Works, Didsbury, MANCHESTER. CONSIDERABLY OVER inn pi jntq IUU 1 Ln 11 10 AND THE colonies Estimates and Designs on application. Agent for South Wales: A. LEIGHTON STEVENS, 15, Fields Road, Newport, Mon. QUALITY m SWITCH GEAR. LIQUID SWITCH GEAR of HIGH- CLASS MAIL and GOOD DESIGN. E- 2 WRITE for LIST No. 60 with PRICES and OUTPUT* PATENT SHELTERED SEAT TRYCOCK J. H. HOLMES & CO., Newcastle-on-Tyne. The Life of Steelwork is Doubled When it is Coated with BITUMASTIC ^ Solution “ BITUMASTIC ” Solution effectively Prevents Corrosion, and thus saves Costly Repairs and Renewals. “ BITUMASTIC ” is a Brilliant Black Colour, Supplied Ready for Use. Greater Covering Capacity and Superior Lasting Qualities than Ordinary Paint. WRITE FOR ILLUSTRATED PAMPHLET TO SOLE MANUFACTURERS- WAILES DOVE BITUMASTIC LIP And at London, Liverpool, Manchester, Glasgow, Cardiff, Birmingham, Leeds, &c. 'Phones in every office. Telegrams—“ Bitumastic." SPECIFY FIG. 6 68 5 Sent on Approval. - For - WATER GAUGES. 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 HOPKINSON’S “ PLATNAM ” metal, which does not cut and score like gunmetal & other alloys. Upward* of 500 ton* of Standard Steel Casting* kept in Stock, ife can give immediate delivery of iron and steel valve*. Illustrated Catalogue Post Free on Application. J. HOPKINSON & C° LD Maker* of Patent Safety Boiler Mounting* and Valve* 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, Oldham, Blackpool, Paris & St. Petersburg. No. 306.