Why "American" Centrifugal Pumps Were Selected for 



the Patterson Ranch The Model Irrigation 



Pumping System of America 



Read the description of the Patterson Ranch irrigation 

 installation in the July. 1910, issue of The Irrigation Age 

 and note that it is conceded the model and most modern 

 irrigation pumping system in the west. 



But the important point is that after a careful comparison 

 of the relative merits of all other makes of pumps Amer- 

 ican" Centrifugals were selected for this entire project. 



On the Patterson Ranch water is pumped to irrigate 

 14,000 acres and supply the town of Patterson. There are 

 five pumping stations, two of which 

 and two interior views, showing 

 "American" Ontrifugals, are illus- 

 trated herewith. 



Guaranteed efficiency under the low 

 head conditions, combined with sim- 

 plicity and low expense of up-kesp, 

 won the order for The American Well Works. 



After the ord;r was given the Patterson Ranch Co. sent 

 Mr. Arthur L. Adams, M. Am. Soc. C. E., Consulting 

 Hydraulic Engineer, San Francisco, Calif., to Aurora to 

 make a thorough test of these pumps in Th? American Well 

 Works' Testing Laboratory. The Laboratory is a concrete 

 building erected exclusively for this purpose and tests were 

 made under actual working conditions. 



The result of these tests gave the "American" 16-inch 

 Centrifugal an efficiency of 77.4% when pumping against a 

 total head of only 22.69 feet. Remember it is much more 

 difficult to attain high mechanical efficiencies on low heads 

 than higher ones. 



At the conclusion of his report Mr. Adams said: 

 "The writer confesses to have had. in the past some doubts as 

 to the practicability of securing from centrifugal pumps as high 

 efficiency, under comparatively low heads, as these pumps have 

 shown, and he is correspondingly grati- 

 fied with the result." 



Mr. Adams' complete report mailed 

 free on request. 



New 8x11 inch, 116 page Centri- 

 fugal Pump Catalog, No. 11Y, the most 

 complete ever issued, just off the 

 press. Your copy is waiting you. Write for it today. 



Let us prove to you that the pump that is best for the 

 the most perfect irrigation pumping plant in America is best 

 for you. 



The AMERICAN WELL WORKS 



General Office and Works: - AURORA, ILL, V. S. A. 



Chicago Office: First National Bank Building. 







