HARVESTING MACHINERY 149 



The third packer is considered an advantage, but is not 

 generally adopted. 



207. Main gear (18). Considerable difference is to be 

 noticed in different binders in the size of the gearing used. 

 It is true that many makers are not liberal enough with 

 material in the construction of the main gear wheels. 



208. Bundle carriers (19). Two general types of bundle 

 carriers are to be found in use. In one the fingers swing 

 back when depositing the load, while in the other the 

 carrier is simply tipped down at the rear and the load of 

 bundles allowed to slide off. The swinging bundle carrier 

 scatters the bundles quite badly. While the other does 

 not have this fault, it does not work so well in hilly 

 countries, because in going downhill the bundles refuse 

 to slide from the carrier, and in going uphill they will not 

 stay on the carrier. 



209. Tension (20) . The roller tension, introduced a few 

 years ago, is without doubt the best device of the kind 



FIG. 112 A ROLLER TENSION FOR THE TWINE. A VERY SATISFACTORY 



DEVICE 



yet invented. The twine will not be caught at knots, 

 kinks will not be formed, and the tension is always even 

 independent of the size of the twine. 



