56 



HOW TO BUILD A SILO. 



Hoops. Hoops shall be made from two pieces of %-inch diam- 

 eter round iron with upset ends, threaded 8 inches, with nut and 

 washer at each end; as a support for the hoops a piece of 4x6 

 shall be substituted for a stave on opposite sides and holes bored 

 in it and the ends of hoops passed through these holes and tight- 

 ened against the sides of the 4x6-inch. The hoops shall be twelve 

 in number starting at the bottom 6 inches apart and increasing 

 in distance 6 inches between each hoop until a space of 3 feet 

 6 inches is reached; from this point up this distance shall be 

 preserved as near as possible to the top. 





Fig. 15. Appearance of door in stave silo after being sawed out, 

 and side view in place. The opening is largest on the inside 

 of silo. (Clinton.) 



