8 Oct., 1907.] 



Silo Building. 



619 



butt joints and let each successive hoop break joints. Keep tlie first treble 

 hoop 3 inches clear of the ground. A similar treble hoop is fixed so that 

 Its upper edge is 36 inches from the ground. These two treble hoops are 

 used to fix studs in upright position. 



The Studs and Single Hoops. — First bore and check studs as shown 

 in drawing. The thirty-two studs (6/24 and 26/21 — 4 by 2) are to l)e bored 

 for bolts, and countersunk h inch deep, f inch clear, for heads of bolts. The 

 first hole is to be 5 inches from the bottom, the second i8| inc-hes, the 

 third 32 inches, the fourth 53 inches and thence at intervals of 35 inches 

 the ninth being at 19 feet; the tenth and last is 20 feet 6 inches from 

 the bottom and 6 inches from the top of the 21 feet studs. The first and 

 third holes are to be bored for ^ inch bolts and all others for | inch. 

 Ail studs are to be checked out 6 inches wdde and 5 inch deep on the 

 same side as the countersinking ; from bottom of stud tO' bottom of first 

 check 2)~h, inches; and from bottom of first to bottom of second 35 inches, 

 and so on to 17 feet 35 inches from the bottom. 6 checks in all. 



JOINT OF INNER HOOPS. 



Before setting up studs decide ujx)n position of portholes ; these 

 to the number of three, if the first is in the second row of plates or four, 

 if the first is at ground level, must be vertically above one another, and 

 should be so located as to make the transport of the silage to the feeding 

 place as ea,sy as possible. The first stud to be erected should foirm one 

 side of the row of port holes. The port holes need not be in line with 

 ridge. They may be at any part of the silo. 



The studs are fixed to the hoops on the flat, every fourth one coming 

 opposite a foundation post to which they are bolted with two 8i by 

 J inch bolts passing right through the studs, treble hoops and posts. The 

 intermediate studs are bolted to the treble hoops with 4 by | inch bolts. 

 The bolts are all inserted from the inside, keeping the nuts on the outside 

 for access w'hen screwing up later on. The spaces between the studs except 

 at the port holes, are 135 inches clear measured between the inside edges 

 of the studs. Cut a template 13-Jr inches long using it as a gauge to 

 correctly fix the studs. Drive a 4 inch nail three inches above the centre 

 of the third hole from the bottom of the stud. When erecting stud, let 

 it rest by this nail on top edge of upper triple hoop; then nail stud to 



