202 



AGRICULTURAL ENGINEERING 



Fig. 112. A frameless and tongueless 

 sulky plow gnided by the hitch. 



although they have the advantage of lightness, they do not 

 have certain advantages secured in the frame and tongued 

 plows. The frame type has the plow connected to the frame 



by means of bails or some 

 similar device. This per- 

 mits the plow to be lifted 

 high out of the ground, 

 designating it a "high- 

 lift" plow. This fea- 

 ture is a decided ad- 

 vantage for cleaning. 

 The frameless plow has 

 the wheels attached di- 

 rectly to the plow beam by means of brackets. This 

 simplifies the construction; but frameless plows are not high- 

 lift. This type cannot usually be set to "float," so that in 

 case a rock is struck in plowing the plow may be lifted out 

 of the ground without interfering with the carriage or the 

 driver. 



The tongue on the high-class sulky plow is used to steer 

 the plow by be- 

 ing connected 

 to the furrow 

 wheels by means 

 of suitable link- 

 age, thus en- 

 abling a square 

 corner to be 

 turned in either 

 direction. The Fig " 113 ' A hish ' lift frame gang plow ' 



tongue gives more complete control over the plow, and, in 

 the opinion of the author, is an essential part. Another 

 desirable feature to have on any plow is a footlift, which 



