September 13, 1918. THE COLLIERY GUARDIAN. [supplement PAGE XIII. 577 HEAD, WRIGHTSON & CO. LTD. Thornaby & Stockton-on-Tees. London Office—S, Victoria Street, Westminster, S.W. 1. THE “MARCUS” HORIZONTAL SCREEN-CONVEYOR IS STILL THE MOST EFFICIENT AND RELIABLE. ALTHOUGH ALL PULSATING CONVEYORS CAUSE SHOCK THIS CAN BE lllhm REDUCED TO A MINIMUM BY ADOPTING THE MARCUS. A I ■K I OVER 100 UNITS HAVE BEEN INSTALLED IN THE UNITED STATES OF AMERICA SINCE 1914. 350 UNITS ARE GIVING UNQUALIFIED SATISFACTION IN ALL PARTS OF THE WORLD. 23 UNITS ARE WORKING IN THE DOMINION OF CANADA. ■t MARCUS SCREENS. L-____ J MARCUS SCI MARCUS INSTALLATION IN THE UNITED STATES OF AMERICA. Blast Furnace Plant Bunkers (Steel) Bridges Crushing Plant Coal Shippers Castings Coal Washers Chairs Coke Screens Colliery Plant Cages Cage Props Conveyors Caissons Detaching Hooks Drop Forgings Dock Cates Elevators Friction Clutches Forgings Gantries Grinding Pans Headgears Hoists Mining Plant Marcus Screens Mota 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