1318 [supplement PAGE II.] •flWCWM'iii !!!■■.. THE COLLIERY GUARDIAN. June 28; 1918. N?1 loloo N?2 plant introduced into a mine. PATENT COMPRESSED AIR-DRIVEN MOTOR. Made in sizes to suit all requirements. Our Patent Roller Jigging Conveyors are unequalled for efficiency, construction, durability and increasing output. It is the best labour-saving No. 4 Conveyor will deal with 500 tons per shift. Sections NW of our Patent Roller Conveyor X ■olco 0/5® •/W '"X;. MOTOR ARRANGED ALONGSIDE CONVEYOR. Telegrams: “ Conveyor, Sheffield. ■ft? —warn zAeMlN^b CO.