174 FARM MECHANICS 



strong. It has a round iron gudgeon iy 2 " in diameter 

 that reaches down into the top of the mast about 18 

 inches. The shoulder of the stirrup is supported by a 

 square, flat iron plate which rests on and covers the 

 top of the mast and has the corners turned down. It is 

 made large to shed water and protect the top of the 

 mast. This plate has a hole one and a half inches in 

 diameter in the center through which the stirrup 



Figure 154. Hay Rope Pulleys. The housing of the pulley to the 

 left prevents the rope from running off the sheaves. 



gudgeon passes as it enters the top of the mast. A farm 

 chain, or logging chain, is fastened to the large end of 

 the boom by passing the chain around the boom and 

 engaging the round hook. The grab hook end of the 

 chain is passed around the timber below and is hooked 

 back to give it the right length, which doubles the part 

 of the chain within reach of the man in charge. This 

 double end of the chain is lengthened or shortened to 

 elevate the outer end of the boom to fit the stack. The 

 small outer end of the boom is thus raised as the stack 

 goes up. 



