244 



FARM MACHINERY 



of dish, the cart bed may be made much wider. It does 

 not matter greatly whether the felloes are bent or sawed, 

 as the merits of the two methods are about equal. A 

 rivet should be placed on the side of each spoke to pre- 

 vent splitting. The felloes should be well doweled and 

 the tire bolted to them. The standard height of wheels 

 for a farm wagon with 3-inch skein or over is 3 feet 8 

 inches for the front wheels, and 4 feet 6 inches for the 

 rear wheels. Smaller wagons have wheels of less 



FIG. l82 THE UPPER IS THE CAST; THE LOWER, THE STEEL WAGON SKEIN 



height. There is a tendency to use wheels of smaller 

 diameter when wide tires are used. The thickness of 

 the tire varies from y 2 inch to 24 i ncn - 



345. The axles should have as few holes in them as 

 possible. Clips can nearly always be used instead of 

 bolts excepting for the king bolt. A well-secured truss 

 rod should be placed beneath each axle, and it is better 

 if it is secured to the skeins. 



The skein may be of either cast iron or steel. In level 

 countries the former is preferable, while among the hills 

 and mountains the latter with a long sleeve is probably 

 more serviceable. Skeins should have a large throat to 



