FOR SOFT FEED. 



209 



to the board, d, next to and partly surrounding the slot, 

 to give d strength when the cord i is pulled. 



All the cords pass over 

 side pulleys fastened to / 

 posts, and all these cords 

 are attached to a wire, li, 

 so that when this wire is 

 pulled all the doors, d, c, 

 are raised, as in Fig. 124. 

 At the top of each post 

 is another side pulley over 

 which passes a cord, one 

 end of which is attached 

 to a weight and the other 

 to the door, d, the latter 

 being slightly the heavier. 

 These weights render it 

 easier, of course, to pull 

 the wire, h. We call h a 

 "wire," because, for out- 

 door use, a wire is better 

 than a cord, the latter 

 being affected by rains. 

 In fact, it is well to sub- 

 stitute for the cord, i, a 

 small chain such as are 

 on the market, latterly 

 made on purpose for pul- 

 ley work. 



In all three cuts, w rep- 

 resents a trip gong bell, 

 Fig. 126, operated by the 

 bell wire, x, which may 

 be of annealed steel, Xo. 

 16, sold on spools, Fig. 

 127. This bell or some other style of bell, or an aural 

 U 



FIG. 101. A FEEDING SIEVE. 



