April 5, 1917. THE COLLIERY GUARDIAN. 695 NEWTON, CHAMBERS * & Co. Ltd., THORNCLIFFE IRONWORKS , near SHEFFIELD. ESTABLISHED 1793. Telegrams—“ NEWTON, SHEFFIELD.”___ Telephone-No. 2200 (Two Lines). * MANUFACTURERS OF .Z T '' ' ‘ W®. . Li ' f /./ ; L. / /z -j /:7 : ' L • - ' ' -'A' . 2 _ JT PIPES & FITTINGS For Gas, Water & Steam. STRUCTURAL STEELWORK Girders, Roofs, Bridges. TANKS In Iron or Steel. HIGH=CLASS CASTINGS For Machinery and Engine Cylinders. WHEELS BAR WEIGHTS PUMPS EDWIN LEWIS & SONS, ML Original Makers of “ Acme,” “ Williams,” and other Loose Flanged Joint Tubes || J for Mining Work. IgjjMME TUBES ■■■ OF ANY SIZE For Compressed Air, Water, or Steam. Telegrams—“Lewis, Wolverhampton.” K «=x f Patent Iron Tube WorKs, Monmore Green. Telephone—Nos. 15 6 180 Wolverhampton. I Britannia Tube Works, Ettingshall. WOLVERHAMPTON. Buyers will note that the joint illustrated is our original “ Acme ” joint used largely for vertical columns as it is quite rigid, and suitable for sinking or per= manent work. LONDON ADDRESS-143, Cannon Street, E.C. LIVERPOOL WAREHOUSE-58, South John St. The PREMIER Screen in the WORLD is Norton’s Patent Horizontal Main Screen NORTON’S PATENT HORIZONTAL MAIN SCREEN AND COMBINED PICKING CONVEYOR, fitted with our Patent Air Cushioning Cylinders. The Screen illustrated is 5 ft. 6 in. wide, having four decks, and will deal with 125 tons of coal per hour separated into four sizes, and passing the large coal without any fall to the Picking Conveyor. REQUIRES NO SPECIAL FOUNDATION. Will work continuously WITHOUT BOLTING DOWN. Will Screen more efficiently than any other screen. Over 150 Screens now at work. For PERFECT sizing & loading USE PULSATING CONVEYORS AND PULSATING LOADING JIBS (NORTON’S PATENTS) NORTONS (TIVIDALE) Ltd., HECLA Works, Tipton, England.