110 



VERMONT AGRICULTURAL REPOKT. 



be put on. and as they are tightened, are pounded into place, 

 and trued up so that the inside surface shall be as true as 

 possible. 



For hoops, some think the ^s-inch rod with burrs at both 

 ends, using- a 4 x 4-inch scantling- long enough for two hoops, 

 makes the best tightener on a silo. Some think the flat 

 hoop the best. The later idea is the 52-inch wide Page fence, 

 four bands to a silo, for hoops, as described above. The 

 method of drawing these bands together is shown in Fig. 7, 

 the wire being snugly wrapped about two 4 x 4-inch oak 

 scantling 56 inches long, so as to 

 come (when put about the silo) 

 within about 10 inches of each 

 other, and are then brought to- 

 gether with two stout bolts, with 

 double burrs. See Fig. 7. Inci- 

 dentally, these bands are placed 

 about 17 inches from each other 

 so as to have a manhole between 

 each as illustrated in Fig. 8. 

 When the silo is complete a man- 

 hole 16 inches square is marked 

 out, and two cleats nailed on to 

 hold the staves firmly together. 

 The "hole" is then sawed out 

 so as to have a 1^-inch bevel, as 

 seen in dotted line, and is put back int y its place, and makes 

 a perfect air-tight door, only needing a little curtain of 



T\ 4 .a 



