94 FARM MECHANICS 



ing on gasoline and should develop approximately as 

 much horsepower. Another feature is harmonizing the 

 fuel oil and the lubricating oil so that one will not 

 counteract the effects of the other. 



PORTABLE FARM ENGINE AND TRUCK 



A convenient arrangement for truck and portable 

 power for spraying, sawing wood and irrigation pump- 

 ing, is shown in the accompanying illustration. The 

 truck is low down, which keeps the machinery within 



Figure 111. (Portable Farm Engine. This engine is permanently 

 mounted on a low wheel truck wagon. The saw frame is detachable 

 and the same truck is used for spraying and other work. 



reach. The wheels are well braced, which tends to 

 hold the outfit steady when the engine is running. The 

 saw table is detachable. When removed, the spraying 

 tank bolts on to the same truck frame ; also the elevated 

 table with the railing around it, where the men stand 

 to spray large apple trees, is bolted onto the wagon 

 bed. 



Spraying never was properly done until the power- 

 ful engine and high pressure tanks were invented. 

 Spraying to be effective, should be fine as mist, which 

 requires a pressure of 150 pounds. There may be a 



