554 THE COLLIERY GUARDIAN. March 13, 1914. CAUTION THE “EIGKHOFF” PLANTS CONSISTING OF ROLLER CONVEYORS, DRIVING ENGINE & MOTOR DRIVING MECHANISM, ARE PROTECTED by ENGLISH PATENTS. No. 27516 of 1911, No. 19696 of 1912, AND No. 10913 of 1913. NOTICE is hereby given that immediate proceedings will be taken against any maker, seller, or user infringing any of the above Patents. THE MINING APPLIANCES CO., 32, Church Street, SHEFFIELD. Telegrams—“ Conveyor.” Telephone—2401 Central.