Build for Permanency 



The silo which defies time and 

 elements is the concrete silo. 

 Years may come and go but the 

 concrete silo will stand as a 

 symbol of 20th century perma- 

 nent construction ideas. Yet 99% 

 of the present concrete silos 

 have one great weakness, THE 

 DOOR FRAME AND DOOR. 

 It is crude, ill-fitting, cumber- 

 some, and really inadequate for 

 its purpose. 



Perhaps your silo door and 

 frame are not as they should be. 

 L,ook into the latest and most 

 scientific door frame constructed, 

 the AIR-TITE all steel door 

 frame. With it you can ap.. 

 proach your prospective cus- 

 tomer and say: "With my silo 

 you get the best and most prac- 

 tical door frame constructed." 

 Consider These Points: The silo 

 door is solely for the purpose of 

 discharging silage as needed. 

 That this may be done quickly 

 and with the least possible la- 

 bor, the door must be continu- 

 ous. The AIR-TITE is continu- 

 ous. You build your silo air 

 tight because the admittance of air to silage will spoil it. Then, 

 should not the door be as tight as the silo wall? The AIR-TITE 

 door is so. 



You construct your silo to stand the test of time. Should not 

 your frame and doors be likewise? The AIR-TITE frame is all steel 

 inflexible, unbreakable, defying time and elements like King Cons 

 crete. But more, your customer, the farmer wants simplicity, 

 ease of operating, etc. All this he finds in the AIR-TITE. No felt, 

 no paper packing, no freezing of door to frame. Just a whole lot 

 of srood things about the AIR-TITE that you should know. Our 

 booklet. "Modern Silo Ideas," tells you about it. Write for it. 



Silo Specialty Mfg. Co., c 2 



423 Weston Bldg. 

 - IOWA 



