February 9, 1917. THE COLLIERY GUARDIAN. 309 .1'- f I B GOSFORTH FOUNDRY Co. Ltd., Malleable Ironfounders, DRONFIELD, near SHEFFIELD. Makers of all kinds of Driving and Elevator Chains, Sprocket Wheels, Elevator Buckets, Ac. NO SUSPICION between Weighmen. Denison’s Patent Mercury Resistance PIT BANK WEIGHING MACHINE. Quick. Accurate. Durable. NO WATER. Pointer Shadowless. SAMI DENISON & SON LTD Furlea, LEEDS* Walter Scott Ltd. Leeds, LEEDS STEEL WORKS, England. MANUFACTURERS OF BRITISH STANDARD ROLLED STEEL JOISTS, CHANNELS, TRAMRAILS AND PERMANENT WAY RAILS, &o. Example of 10 in. x 6 in. * 42 lb. R.S. Joists curved for Framework to Roadway, j Pit Head Frame. , Erected in Works for inspection. a®' s 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 Books of Sections and other information on application. Welding For welding most diffi- cult jobs — or under- taking work from 1 -64in. thick upwards, without injuring the material— for simplicity of action, the y clone Welding Outfit (Oxy-Acetylene) is without equal. The “Cyclone carbide-to - water ” principle ensures cool and pure gas—cool and pure gas means economy of oxygen and satisfactory work. Booklet 275 from— fteiihews OitesE