SIXTH ANNUAL YEAR BOOK — PART VIII, 



741 



INTEEIOR BEF0I2E LaTHIMG 



Cut 17.— Detail of extra lining- showing method of reinforcing the side of Silo 

 which doorways were left. Figures indicate ends of boards showing 

 methods of breaking joints on inner lining. 



does not have sufficient strength to withstand the outward pressure of 

 the silage at such a depth. This silo wall has cracked slightly in two 

 or three places. 



The sill was made of 2x4's cut into two foot lengths; these were 

 thoroughly imbedded in mortar on top of the wall. The upper two 

 feet of the wall was laid in mortar made of one part Portland cement 

 to two parts of sharp sand, and the entire foundation was plastered 

 with a thin coat of this mortar. 



The studs, which were 16 foot 2x4's, were set on the sill and toe- 

 nailed to it. A large post sixteen feet long was set in the ground in 

 the center of the excavation, and boards extending from this to the 

 studs about six feet above the foundation, held the studs perpendicu- 

 lar to this height. (Cut 12.) A half-inch board was then bent around 

 the outside of the studs at his height and the studs were tacked to it 

 as fast as they were plumbed. These boards held the studs perpendicu- 

 lar and in a circle to a height of six feet. The lining, which was 14x6 

 inches 16 feet long, made by splitting common fencing with a saw, was 

 put on the inside, beginning at the bottom. (Cut 13.) The upper por- 

 tions of the studs were then plumbed and held in place by pieces radiat- 

 ing from the post in the center and by boards sprung on the circum- 

 ference of the silo. (Cut 13.) To insure uniform strength throughout 

 the silo, care must be exercised to break joints when ceiling. 



Staging was carried up on the inside as fast as the ceiling. When 

 the top of the first studs was reached, the upper studs were spiked to 

 the sides of the lower, allowing them to lap two feet, and another sec- 

 tion was plumbed. (Cut 14.) The ceiling was continued on the inside 

 to within six inches of the top, and the plate, which consisted of 2x4's 

 cut into two-foot lengths, was then spiked on top of the studs. (Cut 15.) 



On each side of the line of doorways were set two 2x4's spiked 

 together to make 4x4's. These were placed so that the edge of the 2x4's 

 faced the doorways leaving the flat side for the doors to rest against in 

 resisting the pressure from the silage. In this way there was no crack 

 through the 4x4's where the plaster and doors join. (Cut 16.) 



