Arrangements for Unloading Hay. 393 



tit ing hay in ordinary rectangular barns, whose timbers are 

 not in the way. Fig. 194 represents a tilting platform, 

 which rocks upon two bars carried by four cables secured 

 to pulleys which roll along tracks or cables secured to 

 rafters, as shown in the cut. With this arrangement hay 

 may be dropped at either side or in the center of the bay, 

 as desired. 



