238 THE COLLIERY GUARDIAN. July 31, 1914. users Present acknowledge tremendous saving. to °ne / It only needs a trial to prove above which we are prepared to guarantee “ EICKHOFF ” CONVEYORS. A A< S?' ? 44 EICKHOFF” PATENT COMPRESSED AIR-DRIVEN MOTOR. Used in connection with the “Eickhoff” Patent Roller Conveyor. 44EICKHOFF” PATENT ROLLER CONVEYOR. Only 9 inches high. We are Sole Proprietors of the “Eickhoff ” Patents. Any INFRINGEMENTS will subject offenders to legal proceedings forthwith. A MINING APPLIANCES CO., Sheffield. Telegrams—“ Conveyor, Sheffield.” Teleph one—2 401 Central.