428 THE COLLIERY GUARDIAN. February 28, 1913. PUMPING MACHINERY MAKERS OF ALL KINDS OF MINE PUMPS. Main Pumping Engine. I—i r-n THREE-THROW and CENTRIFUGAL PUMPS, Electric and Belt Driven Send for our THREE-THROW CATALOGUE, which shews some typical designs of Three- Throw Mining Pumps. POWER WATER TAKEN FROM DELIVERY PIPE OF MAIN PUMP THREE THROW OR TURBINE PUMP. M4'*'s“airTo HYDRAULIC DIP PUMPS Economical —>|!n running1 RAO. WILL WORK UNDER WATER. HATHORN, DAVEY & CO. Ltd.