THE TILT BOX. 



159 



rest, as shown at A, Fig. 73, the litter being represented 

 by the dots being level. The first step is to tilt to the 

 position, B, and then stop a second and drop feed from 

 the cylinder, 10, before the litter tumbles, then pass to 

 the full tilt, C, Fig. 72, which makes a windrow or ridge, 

 then immediately go back to the level position, D, when 



FIG. S3. END OF ROW OF FEED CYLINDERS. 



the windrow will be found intact at y, with grain mixed 

 through it ready for the fowls to enter and go to work. 

 The shape of the windrow is not destroyed by the motion 

 of the tilt box in returning to the original position. 

 After the birds have worked about twenty minutes, 

 scratching, the litter will be back to its original level, 



