MANUAL FOR AHMY HORSESHOERS. 



13 



made to revolve by a drive wheel or by a handle (H). The twyer 

 ball (T) corresponds to the 2:rate of a stove. Firmly attached to it 

 and extending toward the worker is an iron rod })y which the ball 



Plate II.— Anvil and Tool Boxes. 



may be rocked. The end of this rod is shown by the small circle in 

 the center of the twyer ball. A crater (C) shonld be made around 

 the tu-yer ball in order to confine the fire. Clay may be used for 

 this purpose, but cement is better. 



