Concrete Silos 



91 



Peerless Outfit. 



First Ring- of Mold Filled and Derrick Raised 

 to Receive Second Ring. 



and either metal or concrete roof are included in the 

 construction of these silos. 



Martin Adjustable Steel Silo Forms. These forms 

 are made and sold by the Martin Concrete Form Com- 

 pany, Ottawa, Kan. They build silos from 12 to 20 

 feet in diameter. 



The outside form is made of 14-gauge steel and the 

 inside form is made of 12-gauge steel. The top and 

 bottom of the inside form are held in place by angle 

 iron braces radiating from the center. Each section 

 of the inside form is adjustable to a larger or smaller 

 circle by means of turnbuckles. The size of the form 

 is also changed by adding sections and adjusting the 



