204 



AK EGG FARM. 



box not long enough and deeper 

 than is necessary. If not convenient 

 to hang this shelf up out of doors, 

 you can put a caster or two under it 

 every fifteen or twenty feet, and to 

 send it back to first position after a 

 shock, a spring, &, can be arranged 

 to engage with the bar, e, or a spiral 

 spring can be rigged at either end of 

 the feed shelf on the plan shown in 

 Fig. 75. See also Figs. 117 and 118. 

 Figure 119 shows how the ham- 

 mer can be made to move M while 

 N remains stationary. The stick, 

 N 9 and the other scantling near 6', 

 as also the one above N, should be 

 fastened to stout posts if outdoors, 



^i; Is or if indoors to the frame of the 



I < building, so as to be firm. Two such 

 pulleys, only one of which, however, 

 could be shown in the cut, serve to 

 steer the cord, C, in operating the 

 hammer, and also to turn the cord 

 or its wire continuation to a course 

 at right angles to the hammer han- 

 dle, so that it may be extended to 

 where the operator stands, hundreds 

 of feet away. Either a long feed 

 shelf or a row of feed sieves may be 

 attached to M, and these may be 

 supported entirely by casters, or by 

 swing cords, wires or jack chains. 

 Notice a cord, R, in Fig. 119, this 

 being one of a row of cords. The 



spiral spring, Fig. 107, is not visible in Fig. 119, but may 



