Decembek 11, 1914. THE COLLIERY GUARDIAN 1213 Walter Scon Ltd. Leeds, LEEDS STEEL WORKS, England. KEITH Induced Draught Plants. Head Frame. Erected in Works for inspection. 1 ’ ■ I Example of 10 in. x 6 in. 42 lb. R.S. Joists curved for Framework to Roadway. MANUFACTURERS OF BRITISH STANDARD ROLLED STEEL JOISTS, CHANNELS, TRAMRAILS AND PERMANENT WAY RAILS, &c. ROLLED STEEL JOISTS for PIT PROPS, FRAMEWORK TO ROADWAYS. Ac. STRUCTURAL STEELWORK FOR BUILDINGS, &c. Mild Steel Blooms, Billets, Slabs, Tinbars, Rounds & Flats. Rolls cut for Special Sections and to approved quantities. Boo'ts of Sections and other information on application. POWER ECONOMY. Keith Induced Draught Plants ensure complete combustion of cheap low grade coals, and overcome chimney troubles due the use of fuel economisers, superheaters, &c. James Keith & Blackman C LTD 27, Farringdon Avenue, LONDON. And at Manchester, Newcastle, Cardiff, Leeds, Glasgow, &c. SUTCLIFFE’S BOILER HOUSE ECONOMY COAL GUTTERS DISC & CHAIN TYPES, ,i9M , pattern, for thin or thick seams, with shallow or deep cuts. Compressed Air or Electrical Drive. Coal-Face Conveyors, unrivalled in capacity, constant in work, noiseless in the face and most easily moved forward. Roadway Conveyors, which are moved freely from the face to admit ripping in the gateway. HailllllQ GCdl*, to keep a constant supply of tubs between the engine plane and coal face with instantaneous extension of endless rope. Wire BdtlllCJ, for conveyors of all kinds. X When ordering New Boilers SPECIFY OUR PATENT DAMPERS, and have a Perfect Job. Enquiries Solicited. Estimates Free Thomson’s Non-Overwind, simplest, safest, surest, and cheapest. Sutcliffe’s Universal Sounding & Displaying Signalling Apparatus, fully complying with Regula- tion 95 of the MINES ACT. NOTE.—The above machinery is all patented or protected and makers or users of infringing articles will be liable to be prosecuted. FULL PARTICULARS FROM RICHARD SUTCLIFFE, Universal Works, HORBURY, WAKEFIELD, England. The “HEYWOOD” AIRTIGHT DAMPER CO. LTD., Registered Office: GROVE FOUNDRY, GOMERSAL, LEEDS. Telephone—141 BATLEY. Telegrams—“ DAMPERS, GOMERSAL.” PREVENT GOAL MINE EXPLOSIONS by dusting your mine with stone ground in the GIANT GRIFFIN MILL, As supplied to the leading Collieries. Advantages— MAXIMUM PERCENTAGE OF “FLOUR” OR IMPALPABLE MAXIMUM FINENESS. POWDER. MAXIMUM an OUTPUT. •JST/v'., MINIMUM power. WW MINIMUM WEAR AND TEAR. £ ' / ST N° Auxiliary Apparatus required for St* / ’ W1. Finishing the Product. Heavy Construction. WmW 0VEB 3’0