1324 [supplement page vni.] THE COLLIERY GUARDIAN. June 28, 1918. Wrought SPECIAL JOINT. These Tubes are specially suitable for mines, being both light and strong. The Joint, as illustrated, can be easily connected, and a tube can be removed without disturbing the run Fittings of al! kinds supplied. Iron and Steel Tubes. Improved Albion Loose Flange Joint, PIT PROPS. We manufacture Tubular Steel Pit Props, which are exceptionally strong and durable. They can be used repeatedly and have a high factor of safety. Lists sent on application. STEWARTS and LLOYDS LTD., GLASGOW-41, Oswald Street. ASKFCXVEIN'Cx-HTAlVlt—Broad Street Chambers. LONDON—Winchester House, Old Broad St., E.C. 2. PUMPS FORouLs QUALITY m SWITCH GEAR. T. Shore & Sons Ld. Engineers, Etruria, STOKE-ON-TRENT. LIQUID SWITCH GEAR of HIGH CLASS MAKt and GOOD DESIGN. Telephone : 74. Telegrams : “ Pumps, Stoke=on=Trent. WRITE for LIST Io. 60 with PRICES and OUTPUTS. J. H. HOLMES & GO., Newcastle-on-Tyne. ERNEST PEARCE & Co Sterling Steel Works, SHEFFIELD London Address—Lloyd’s House, 6, Lloyd’s Avenue, London, E.C. 3, STERLING BRAND High Speed Steel DOUBLE MINING DRILL STEEL of every description NICKEL CHROME AND OTHER ALLOY STEELS Birmingham Address—14, Temple Street, Birmingham. STERLING SUPERIOR”»i,» »..<» iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii Manufacturers of Steel, Files, Hammers, &c. »iiiiiiiiniiiiiiiiiiiiiiiiiiiiiiiiin Telephone— 3185 Central. Telephone No.—10859 Central, London, Telegraphic Ad dress—“ Dringend Fen, Lond Telegrams— Universal, Sheffield.