October 8, 1915. THE COLLIERY GUARDIAN. 719 KEEP THIS PAGE FOR REFERENCE. Head, Wrightson & Co. Ltd are Manufacturers of: BREEZE WASHERS BUNKERS & BINS Bridges Bollards Blast Furnace Plant By-Product Plant Benzol Stills BUCKET ELEVATORS BAND CONVEYORS COLLIERY PLANT COAL SHIPPERS COAL CRUSHERS COAL WASHERS COKE SCREENS COKE CONVEYORS CAGES CAGE PROPS CONVEYING PLANT Castings Chairs Caissons CREEPERS Cyanide Tanks Dock Gates Drop Forgings Dorr Thickeners Drage Filters DETACHING HOOKS ELEVATORS Extractor Boxes Filter Boxes Friction Clutches Furnace Bells Furnace Doors Forgings GANTRIES Grinding Pans Gasholders Hydraulic Mains Headgears HOISTS Ironwork for Retort Benches Keel Blocks KINGS’ HOOKS KEPS MINING PLANT MARCUS SCREENS NOTA NOS WASHERS Nissen Stamp Mills PLATE CONVEYORS Purifiers PIT TUBBING PULLEY BLOCKS PLUMMER BLOCKS Prospecting Plant ROOFS ROTARY SCREENS Retort Houses Stampings STORAGE BINS Steel Wagons Steel Chimneys SCREENING PLANT SHIPPERS SKIPS SCRAPER CONVEYORS STEEL STRUCTURES STANLEY KEPS Slag Bogies Sulphate Plant Saturators Steel Sleepers Tube Mills Trommels Tipplers Tanks Tub Creepers Tunnel Segments Turnbuckles Turntables Head, Wrightson & Co. Ltd., STOCKTON-ON-TEES. LONDON Office : 5, Victoria Street, Westminster, S.W. Fe/egrams-" TEESDALE, STOCKTON-ON-TEES.”