842 THE COLLIERY GUARDIAN. April 25, 1913, The PREMIER Screen in the WORLD is Norton’s Patent Horizontal Main Screen. REQUIRES NO SPECIAL FOUNDATION. ?; j' ■ *3 Will work continuously WITHOUT BOLTIHC DOWN, Will Screen more efficiently than any other screen. Nearly 100 Screens now at work. For PERFECT sizing & loading USE PULSATING CONVEYORS AND PULSATING LOADING JIBS (NORTON’S PATENTS). We are constructing and erecting more than one complete Screening Plant every month. Capacities 2,000 to 5,000 tons per day. NORTONS (TIVIDALE) LTD., HECLA Works, Tipton, England. IMPORTANT NEW DEVELOPMENT IN GAS ENGINE DESIGN. ' -i J.. ■J A' J ■ ® THE “DUPLEX” VALVELESS GAS ENGINE. The simplest and therefore the most reliable Engine on the market. , THE “ Duplex Valveless Gas Engine NO ADMISSION VALVES. NO EXHAUST VALVES. NO CAMS. NO SIDE SHAFTS. NO VALVE POCKETS. NO INTRICATE CASTINGS. Easy to Lubricate. Easy to Overhaul. Steady Running. The “ Duplex ” represents the highest standard of Gas Engine Construction. In Single Units from*200 H.P. up to 4,000 H.P. or larger if required. Write for Booklet. Claliicr Olattr ----------- ----- MANCHESTER and LONDON. ---- J.B. , TREASURE &-C9, ' VflUXHALL R? LIVERPOOL GAUGE CLASS WASHERS LUBRICRTORSetc '’■ssbkbs^ LISIS ov PPPl/Cffr/OP. LASSES Single or Double Inlet. The Capell Patent Reversing Fan ALFRED ALLEN & SON IVI si, Uteris or TL.TD. (Wil / - . ... =1 9 COL .LIE ,RX ( AIR PIF ’EE His k o w? (W and COLLIERY TUBS In IRON, STEEL and WOOD. Lower* Gornal, nr. Dudley. Telegrams—” A ilen, Lower Gornal.” Telephone—106’Dudley. WIRE SCREENS ALEX. COUSLflND &SON 3,MITCHELL ST, GLASGOW ALL —I KINDS ■ OF ! WIRE I SCREENS! S’* ALL ■ MESHES OF ANY GAUGE OF WIRE J; El CAPELL PATENT FANS REVERSING FANS ARE REQUIRED BY NEW MINES ACT. These give larger Volumes and higher Manometric Effects. The Result is a Smaller Fan is now used for all duties. Fans—Rope or Belt or Direct Driven. SOME RESII.TS of these sew faxs ake NOW GIVES. i. IN ENGLAND. Fan, 12 ft. 6 in. x 7 ft. 0 in. Date, Oct. 5th, 1907. Revols. .......... 265 W.G.......... 8 inches Cubic ft. per min. 376,000 H.P. in av....... 472 H.P. indicated ... 579 Useful Effect 81’5 °/o 2. IN PENNSYLVANIA. Fan, 16ft. Oin. x 8ft. Oin. Direct Driven. Date, October 6th. 1907. Revols. ......... 158 Cubic ft. ... 431,700 W.G.........4'3 inches Useful Effect 80°/o 3. IN ENGLAND. Single Inlet Fan. 16ft, Oin. x 5ft. 6in, Revols. ....... 170 Cubic ft. ... 298,000 W.G.......... 5| inches Useful Effect 74 % IN-BYE FANS, CUPOLA FANS, FORCE FANS, FANS, AND DUPLICATE MINE FANS. INDUCED DRAUGHT. HAND MINING Sole Makers- THE CAPELL FAN CO., 13, Mosley Street, NEWCASTLE-ON-TYKE.