September 8, 1916. THE COLLIERY GUARDIAN 471 HEAD, WRIGHTSON & CO. LTD. Thornaby & Stockton-on-Tees. London Office—5, Victoria Street. Westminster. S.W. ‘N CONVEYOR. 1 MARCUS SCREENS; Hear, EVATOR. ■g»: ■ft. ■ 8 *4»- '-’i ,f|| 1 WRIOHTSON i C l£RS or MINING PLANT *.< THORNABY ON- me;’. 3TOCKTCN*'"oN - .rites. . --ENCLANO I L -L- Sri. ! vt P' / ■ -w- ./Jh ■ff Ml?.-- I m > « 1 <■ u ri SCREENI SCRAPER CONVEYOR £ COAL BELTS. NOS" C 0AL,W5s N£R$Jt|j? 1 •V P Blast Furnace Plant Colliery Plant Forgings Pit Tubbing Screens Bunkers (Steel) Cages Gantries Pulleys and Pulley Storage Bunkers Bridges Cage Props Headgears Blocks Shippers Crushing Plant Conveyors Hoists Rollers Tub Creepers Coal Shippers Detaching Hooks Mining Plant Roofs Tipplers Castings Drop Forgings Marcus Screens Stampings Tanks Coal Washers Elevators Nota nos Washers Steel Wagons Wagons Chairs Friction Clutches Nissen Stamp Mills Steel Chimneys Wagon Hoists