June 23, 1916. THE COLLIERY GUARDIAN. 1177 Walter Scon Ltd. Leeds, LEEDS STEEL WORKS, England. MANUFACTURERS OF BRITISH STANDARD ROLLED STEEL JOISTS, CHANNELS, TRAMRAILS AND PERMANENT WAY RAILS, &c. Example of 10in. x 6in. » 421b. R.S. Joists curved for Framework to Roadway. Pit Heed Frame, k Erected in Works 'or inspection. ♦ \ ♦ V Vai® ■ / ® T J* J 9® \ B ROLLED STEEL JOISTS for PIT PROPS, FRAMEWORK TO ROADWAYS. &c. STRUCTURAL STEELWORK FOR BUILDINGS, &c. Mild Steel Blooms. Billets, Slabs, Tinbars, Rounds & Flats. Rolls cut for Special Sections and to approved quantities, 3ooks of Sections and other information on application. I. Blowing and Exhausting Fans for blowing brazing, rivet-heating, and forge fires, and all kinds of furnaces ; exhausting dust from grinding and polishing machines, and local ventilation of tunnels and mine- drifts, etc. These Fans are strongly built, and run equally well in any position. We have a wide experience in the application of Fans and Blowers, and our expert knowledge is at the disposal of clients. James Keith & Blackman C.u L™ 27, Farringdon Avenue, .... LONDON. And at Manchester, Newcastle, Cardiff, Leeds, Glasgow, Edinburgh, &c. STEAM, MOTOR, BELT, OR ROPE-DRIVEN AIR & GAS COMPRESSORS From 50 to 15,000 cubic feet FOR COLLIERIES, MINES, Etc ADVANTAGES: - SIMPLICITY. RELIABILITY. SELF-LUBRICATION. SMALL FLOOR SPACE. BEST WORKMANSHIP. MINIMUM MAINTENANCE One of Two 1,400 c.f. Air Compressors, in De Beers Mines S.A. •• . SEER . - ’V ' * / ADVANTAGES DURABILITY. HIGH EFFICIENCY. BELLISS & MORCOM LIMITED Telegrams : BELLISS, BIRMINGHAM.” BIRMINGHAM London Office: 8, VICTORIA STREET, S.W.