1290 THE COLLIERY GUARDIAN June 12, 1914. STEAM MOTOR, BELT, OR ROPE DRIVEN AIR COMPRESSORS From 50 to 15,000 cubic feet FOR COLLIERIES, MINES, Etc. ADKAATAOES,-— SIMPLICITY. RELIABILITY. SMALL FLOOR SPACE. SELF=LUBRICATION. 466. 1 One of Two 1,400 c.f. Air Compressors in De Beers Mines S.A. ADVANTAGES •- DURABILITY. HIGH EFFICIENCY. BEST WORKMANSHIP. MINIMUM MAINTENANCE BELLISS & MORCOM LIMITED, Telegrams: T> 11? 1VIII I A 1VI London Office : “BELLISS, BIRMINGHAM.” V_M Ai.2HkiVl. 8, VICTORIA STREET, S.W. THE PATENT UNDERGROUND ROLLER CONVEYORS ------------- SYSTEM HINSELMAN -—— were the first of its kind on the market, and are known to be superior to others in existence. They are distinguished by their Simplicity, Easy Handling, Durability, and Greatest Efficiency. Cause Uniform Advancement of the Working Face by Cheapening and Largely Increasing the Output. Above 120,000 yards of Hinselman Patented Eccentric Roller Conveyors are at work in a great number of mines, giving complete satisfaction, even in the lowest workable seams. Unique method for facilitating the transport of coal from the seam to the tubs in loading road and simplifying the hauling by avoiding unnecessary gateways. Conveyors are obtainable from— THE NEW MIGRATING PITPROP AND MINING OUTFIT CO., Chester Roadf Erdington, BIRMINGHAM, who will be pleased to supply further particulars.