194 AN EGG FARM. 



with a notch in each to receive the shaft. Three tools 

 only are needed for making this style, a knife, a saw and 

 a hammer. To cheapen construction, this homemade 

 cylinder we are describing does not extend out into a 

 flange as at a, Fig. 60. The flange is convenient for 

 putting in grain, but not indispensable. 



It being our aim to show how wood may be substi- 

 tuted for metal in the construction of nearly all the 

 apparatus employed to induce poultry to take exercise, 

 and how ordinary ingenuity may build a homemade 

 equipment without the services of a trained mechanic, 



FIG. 90. ROUNDED BEARING FOR SQUARE SHAFT. 



we illustrate by Fig. 99 a spool for the outdoor exerciser, 

 with a strong wooden crank and handle, and posts and 

 frame to support these. Figure 100 is a transverse sec- 

 tion of the same, the letters in both cuts referring to 

 the same parts. Figure 100 is drawn to a scale one- 

 fourth inch to a foot. The same thing, only larger and 

 stronger, may be attached to the axle of tilt boxes. All 

 the parts are pieces of plank or scantling, excepting the 

 stick marked m (cut off from a pole), the pin, a, which 

 serves as a handle, and the smaller pins which keep the 

 spool in position. Inch boards and 2x4 and 2x6 dimen- 

 sion stuff are the principal materials. The pins, /, i 



