MODERN BLACKSMITHING 



53 



this tuyer is that where soft coal is used, as is mostly 

 the case in country shops, it gets hot and clogs up, 

 but with a strong blast and good hard coal it never 

 gets hot, provided the fire is deep enough. From five 

 to eight inches is the right distance from the tuyer to 

 the face of the fire. In factories this kind of tuyer is 

 used, and I have seen them used for ten years, and 



WATER TUYER 



never found Ihem to clog once. The tuyer was just as 

 good after ten years use as it was when put in. 



To make a water tuyer take a pipe 1 1^^ x 12, weld a 

 flange on each end for water space, now weld another 

 pipe over this, and bore holes for % inch pipes in the 

 end, where the blast goes in. One hole on the lower 

 or bottom side should be for the cold water to go in 

 through, and one hole on the upper side for the hot 

 water to go out through. These pipes to connect with 

 a little water tank for this purpose. The pipes should 



