82 FARM MACHINERY 



the angle of the tooth may be adjusted, making the im- 

 plement capable of performing a variety of work. Some 

 levers are more easily operated than others. This lever 

 adjustment facilitates transportation. Some harrows are 

 so constructed that the sections may fold upon each other 

 for easy transportation. Harrows in which the ends of 

 the tooth bars are protected are suited for orchard work, 

 as the bars will not catch and bark the trees. 



FIG. 54 A STEEL LEVER HARROW WITH A RIDING ATTACHMENT OR HAR-- 



ROW CART. THIS HARROW HAS THE TOOTH BARS MADE OF 



STEEL CHANNEL BARS WITH PROTECTED ENDS 



1 20. The harrow cart. In order that the operator may 

 ride, this device is sometimes attached behind the harrow, 

 The attachment is made to the eveners by angle bars, and 

 the wheels are made to caster so that in turning it will 

 follow the harrow. It is very laborious to walk behind 

 the harrow on plowed ground, and the harrow cart re- 

 moves this difficulty ; at the same time the rider has easy 

 control of the team and is above the dust. The extra 

 draft should be very little, but the wheels should have 

 wide tires to prevent them from cutting into the soft 

 ground. 



