8 Oct., 1907.] 



Silo Building. 



621 



Cover with 9 feet sheets of 26 gauge corrugated galvanized iron, allowing 

 a lap of one and a half corrugations, with spring head nails at every 

 third corrugation. Fix three lengths of 14 inch galvanized ridging. Fix- 

 four battens from studs to ends of bottom purlins for supports. 



The Port Holes. — Port holes are made in every alternate row of 

 iron, the sill of the first being preferably at the top of the first inside 

 hoop. The sills are made of 6 by i inch hardwood, as shown in the 

 drawing, fixed to the top of an inside hoop and supported on two short 

 pieces of 4 b\- 2 inches nailed on to outer face of studs. The sides are 

 formed by four 2 inch pieces planted on studs, notched for ends of out- 

 side hoop and secured with two 4I by | inch bolts. The stops are 3 by 

 I inch hardwood set i inch back from the inside face. The doors are 



SLAT OR BUCKET 



SECTION. 



CHAIN AND SLAT ELEVATOR. 



made from the piece of sheet iron cut for the port hole, backed with three 

 pieces of 3 by i inch Oregon, 22 inches long, to fit close in to stops. 

 They are held in position by the pressure of the silage. 



The Elevator. — The length of the elevator will vary with the local 

 conditions, whether the ground is sloping, whether the cutter is mounted 

 on a stage and so on. In general, the length necessary is about 27 feet. 

 A box having sides made of three 6 by i inch tongued ard grooved 

 flooring boards with top and bottom floors of two similar boards, with a 



