Concrete Silos 



163 



Iron Roof. An iron roof for silos is made by the 

 C. ('. Fonts Company, Middletown, Ohio. This roof is 

 made in sections readily bolted together. It is of pure 

 iron, 20 to 24 gauge, and is 

 equipped with a large trap 

 door for filling. This door fits 

 over a raised rim in the roof, 

 making it weatherproof. These 

 roofs are made with a ventila- 

 tor and a heavy wired glass at 

 the top, admitting sufficient 

 light to light up the interior 

 of the silo. One advantage 

 of this kind of a roof is that 

 sections of it can be left off 

 while the silo is being filled. 

 This will allow of the silo 

 being filled to its full capac- 

 ity, while the settling of the 

 silage will be sufficient to give 

 working room when it is de- 

 sired to begin feeding from 

 the silo. 



Winner Extension Silo 

 Roof. The special feature of M 

 this roof, which is made by 3 

 the Silo Specialty Manu- 

 facturing Company at Clinton, \\ n >i ;.. 

 Iowa, is that it allows the user to utilize the entire 

 space of the silo. That is, the roof opens outward from 

 the peak, so that the silo can be filled above the height 

 of the walls. As the silage settles the roof is closed, 

 giving the contents of the silo complete protection 

 against the elements. 



