October 15, 1915. THE COLLIERY GUARDIAN. 769 THERE IS A PLOWRIGHT BROS. LTD., Brampton Iron Works, Chesterfield. CENTRIFUGAL FAN for every purpose for which a : Fan can be used. : : Speciality— COAL SCREENING & CONVEYING VOLUMETRIC FANS. I ™----i— \ Made in all sizes from 5 in. upward. Sixteen different arrangements of discharge and handing. ------- See Bulletin No. 2002 D. -------- wx- W. SECTION OF SCREENING PLANT AT BENTLEY COLLIERY, DONCASTER. Davidson & Co. Ltd., Sirocco Engineering Works, BELFAST. CONSIDERABLY OVER 100 PLANTS -H Estimates and Designs on application. Agent for South Wales: A. LEIGHTON STEVENS, IS, Fields float Newport, Mon. WORK IN BRITAIN COLONIES. Walter Scon Ltd. SUTCLIFFE’S . Leeds, LEEDS STEEL WORKS, England. COAL CUTTERS MANUFACTURERS OF BRITISH STANDARD ROLLED STEEL JOISTS, CHANNELS, TRAMRAILS AND PERMANENT WAY RAILS, &c. Example of 10 in. x 6 in. 421b. R.S. Joists curved for Framework to Roadway. <#'■ Pit Head Frame. Erected in Works for inspection. $ / a® \ s - ROLLED STEEL JOISTS for PIT PROPS, FRAMEWORK TO ROADWAYS. &c. DISC it CHAIN TYPES, light or heavy pattern, for thin or thick seams, with shallow or deep cuts. Compressed Air or Electrical Drive. Coal-Face Conveyors, unrivalled in I capacity, constant in work, noiseless in the face and most easily moved forward. Roadway Conveyors, which are moved 1 freely from the face to admit ripping in the gateway. HOllLiliy to keep a constant supply of tubs between the engine plane and coal face with instantaneous extension of endless rope. for conveyors of all kinds. 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. 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. FULL PARTICULARS FROM RICHARD SUTCLIFFE. Universal Works, HORBURY, WAKEFIELD, England