Labels:text | book | collectable OCR: A B MISOBRE ROTARY PUMPS bx y = x E F A N EARLY G centrifugal- H 7 I type rotary pump K was made in the middle of the 17th century. It was designed to M lift water, but could only manage N around 30 feet (9 m). P A more effective rotary pump was made by a Frenchman named Dietz R in the late 19th century. A pump S similar to Dietz's design was shown 3+3= T u at the Great Exhibition of London V in 1851 and received wide acclaim. W X Y Z M Rotary Pumps
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