498 Jour?ial of Agriculture, Victoria. [10 July, 1911. 



up the top or the bottom floor, according to the side fed 

 from. Looking towards the silo, if the feed be from the right hand, the 

 elevator will work up the bottom floor. It is found in practice better to 

 have the slats running up the top floor, and as the right-hand feed is 

 desirable, throwing the cut stuff into the elevator, a third sprocket is fixed 

 above the cutter, as shown in the drawing, and attached direct to the eleva- 

 tor sprocket. The cutter spindle sprocket drives on one side of the chain. 

 The third sprocket and arm are not included in the material sent out, 

 unless speciallv ordered. An extra charge of £^1 is. is then made. 



The ground end of elevator is rounded off with galvanized sheet iron, 

 allowing just sufficient room for the slats to move round the sprocket 

 wheel when the adjustable bearings are fully extended. The line of this 

 iron will be described with a radius of yf in. from centre of sprocket 

 wheel. The cover of elevator is left off as far as the first ledge, about 

 5 ft. from the ground end. The bottom floor of silo end of elevator is 

 ■cut back 18 in. and provided with a galvanized iron lip; this is to 

 prevent the slats striking against edge of bottom floor when the silage 

 is being carried up on the top floor. The end of elevator is to project 

 into the top of silo 21 in. The top floor of silo is cut back from ground 

 end ii| in. and the silo end 10 in. ; a slot is cut in the floor at the ground 

 end to allow for the working of sprocket wheel. The adjustable bearings 

 are attached to the outside of elevator at ground end with two 2j-in. x i-in. 

 bolts to each bearing, a f-in. iron washer being placed between head of bolt 

 and inside of elevator. The bearings are fixed so that the centre of spindle 

 is 8| in. from top of box and io| in. from ground end when the bearings 

 are fully extended. The spindle should be fixed in this position when 

 the elevator is working. The bearings for the pulley at silo end o' 

 elevator are fixed so that the centre of the spindle is 8J- in. from top 

 of box and 9 in. from silo end of elevator. The slats or buckets for 

 carrying the silage are of 3-in. x i-in. oregon chamfered on one 

 side, checked f in. deep by 3J in. wide for the attachments which are 

 fixed to slats with two 2-in. No. 14 .screw^s to each and with a V-shaped 

 cut beneath attachment to allow for insertion of sprockets. The elevator is 

 nailed together with 2-in. nails from the inside, the nails well punched, 

 clinched and then punched again. Great care must be taken that nothing 

 will project inside the elevator which may catch the slats. The elevator is 

 supported in the centre, as show^n in drawing, with a T-piece made of a 

 length of 6-in. x i|-in. hardwood, checked \ in. at top and well spiked to 

 a piece of 6-in. x i|-in. hardwood, and fixed at bottom end as shown. 



The following is a list of material required for the 69-ton silo speci- 

 fied. Some of the items are slightly in excess, in order to meet contin- 

 gencies : — 



Material jor bg-ton Silo. 



Red-gum, 6-in. x 4-in. ; 8 6-ft., Toundalion posts. 



Hardwood, 4-in. x 2-in.; 6 24-ft., 27 21-ft., 2 20-ft., 4 i6-ft., studs and 



purlins. 

 Hardwood, 6-in. x i^-in. ; 5 12-ft., scaffolding and elevator support. 

 Hardwood, 6-in. x i-in. ; \ 12-ft., port hale sills. 

 Hardwood, 6-in. .\ 5-in. ; 65 i8-ft. , hoops. 



Hardwood, 3-in. x i-in. ; 2 i6-ft., supports for bottom purlins. 

 Oregon, 3-in. x i-in. ; 4 15-ft., port hole doors and stops, 

 (ialvanized iron, plain sheets, 24 gauge; 56 72-in. x 36-in., lining. 

 (ra'v.Tnized iron, corrugated sheets, 26 gauge, 16 q-ft., roof. 

 Galvanized iron, ridging, 26 gauge; 3 lengths i6-in., roof. 

 Galvanized iron, springhead nails, 25 in. ; 3 lbs., roof. 

 AVire clouts, 12 lbs. 15-in. ; 3 lbs. |-in. 

 Bolts, nuts, and washers, 2 6g-in. x g-in., ridge i>urlins and studs. 



