9O FARM MACHINERY 



Cultivator wheels should be high and provided with 

 wide tires. 



Wheel boxes. A notable improvement is found in the 

 closing of the ends of the wheel boxes, making it possible 

 to keep the bearings well lubricated. 



The spread arch is a device to cause the gangs to swing 

 in unison, and should be made adjustable in width. 



Hitch. It is a great advantage to have the height of 

 hitch adjustable to horses of various sizes. 



FIG. 67 A COMBINED WALKING AND RIDING SIX-SHOVEL CULTIVATOR 



WITH STRADDLE SEAT AND TREADLE GUIDE. THE HANDLES TO 



BE USED WHEN WALKING ARE NOT ATTACHED 



Treadle guide. Upon many cultivators a device has 

 been added to guide the gangs as a whole by foot levers. 



