28 FACTS AND FIGURES OR THE 



discharge stream is broken up at the point of delivery, which 

 reduces the area covered to about one-quarter of that cover- 

 ed by our machine. 



POINTS OF SUPERIORITY. 



The L'ampbeU Automatic Sprinkler is superior to and 

 different from any other similar device ever placed on the 

 market, for the following reasons ; 



In that it covers four times the area of any other prac- 

 tical machine, thus saving at least half the usual cost of 

 pipe and fittings. 



In that the water is evenh' distributed over the entire 

 surface covered. 



In that both discharge streams are entirely unobstructed 

 and cannot become clogged by sediment or pipe scale. 



In that it is supplied with ball bearings placed on out- 

 side of machine where the water does not come in contact 

 with them, and which reduces the friction of operation to 

 a minimum, thus enabling the machine to be operated ad- 

 vantageously on low pressures and with inexpensive pump- 

 ing machinery. 



In that the ball races or bearings are made of Tobin 

 Bronze and are readily removable and replaceable in case 

 of wear. 



METHOD OF INSTALLATION. 



When this machine is used for vegetables or other small 

 crops it is advisable that the lateral pipes be placed 42 feet 

 apart on both sides of a main pipe running through the 

 tract to be irrigated, and that the sprinklers be placed 47 

 feet apart on these laterals, and not square with each other 

 but staggered, and with this arrangement each sprinkler is 

 exactly 47 feet distant from all others, and the circular 



