THE STAVE SILO. 



57 



exact dimensions and dressed on all sides. Tliere shall be three 

 doors in the fifth, eighth and tenth spaces between the hoops, 

 made by cutting out from staves 28 inches long cut to a 45-degree 

 bevel sloping to the inside. (See Fig. 15.) The staves shall then 

 be fastened together with two 2x4 inch battens cut on Inside to 

 an 8-ft. radius and bolted to each stave with two %-inch diameter 

 carriage bolts with round head sunk on inside and nut on outside. 

 The staves between the doors shall be fastened together top and 

 bottom, with %-inch diameter hardwood dowel pins, and abutting 

 ends of staves shall be squared and toe-nailed together. 



Bottom Plates. — Bottom plates shall be made of 2x4-inch 

 pieces about 2 feet long, cut to a curve of 7 feet 10 inches radius 



Fig. 15. — Appearance of door in stave silo after being sawed out, 

 and side view in place. The opening is largest on the inside 

 of silo. (Clinton.) 



