446 THE COLLIERY GUARDIAN. March 10, 1916. Head, Wrightson & Co. Ltd., STOCKTON-ON-TEES. LONDON Office : 5, Victoria Street, Westminster, S.W. Telegrams “ TEES DALE, STOCKTON-ON-TEES.” 1 I US i -A. « 'I «* • - .4 I If. ? W F q £ ■ A .A . 11 ml ill ./•••, * <- .A Makers of - - High Grade Serviceable Equipments FOR COLLIERIES AND MINES. Simplify Screening, Picking, Mixing, and Loading, the “Marcus” Screen. by using Blast Furnace Plant Bunkers (Steel) Bridges Crushing Plant Coal Shippers Castings Coal Washers Coke Screens Chairs Colliery Plant Cages Cage Props Conveyors Detaching Hooks Drop Forgings Elevators Friction Clutches Forgings Gantries Headgears Hoists “ Marcus ’’ Combined Screen and Picking Conveyor. » /Z RL'-3 \h’iws. ' *■', 'w ''V.' - ’P ;’r! •; ■ I.I - , • *£• ' "'^‘ 7 >< . Mining Plant Marcus Screens Nota nos Washers Nissen Stamp Mills Pit Tubbing Pulleys and Pulley Blocks Rollers Roofs Stampings Steel Wagons Steel Chimneys Screens Storage Bunkers Shippers Tub Creepers Tipplers Tanks Wagons Wagon Hoists