WOOD SILOS 



29 



never steeper than 45 

 degrees. For silos 

 twelve feet or over in 

 diameter, the stave 

 should be 2 inches 

 thick and 4 to 8 

 inches wide, the most 

 common width being 

 6 inches. In the case 

 of silos 12 feet in di- 

 ameter or less, they 

 have, in some locali- 

 ties, been built from 

 1-inch flooring and 

 the ends of the floor- 

 ing joined together by 

 steel splines. The 

 1-inch stave is quite 

 economical, and for 

 small silos has been 

 found very successful. 

 In the care of the 

 stave silo it is neces- 

 sary, of course, as it 

 becomes empty and 

 dried out, to tighten 

 up the guys and the 

 hoops. S u ffi ci e n t 

 threads are provided 

 for this so that it can 

 be accomplished very 

 easily. One of the 

 most common mis- 



Fig. 7. The Indiana door. 



