299 August 7 1914 THE COLLIERY GUARDIAN _______________ STEAM, MOTOR, BELT, OR ROPE=DRIVEN AIR COMPRESSORS From 50 to 15,000 cubic feet FOR COLLIERIES, MINES, Etc. ADVANTAGES SIMPLICITY. RELIABILITY. SELF-LUBRICATION. SMALL FLOOR SPACE. 466. T #' 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 : “BELLISS, BIRMINGHAM.” BIRMINGHAM. London Office : 8, VICTORIA STREET, S.W. TAZNGYE’S “T” Type Gas Engine With “VARIABLE ADMISSION ” GOVERNING. “WORKS LIKE A STEAM ENGINE.” ■ ■» ' » 5 i ■■ . $ .. J FOR DRIVING ALTERNATORS IN PARALLEL. SINGLE CYLINDER OR COUPLED ENGINE. Catalogue, with full particulars, on application to — TANGYES LT-D No. 205 D