CUTTING TOOLS 



17 



this purpose. The handles holding the saw blade may 

 be turned in any direction with reference to the frame. 



8. The Plane. The plane reduces our rough lumber 

 to planed, or dressed, stock. The cutting part is a 

 thin, wide chisel called the plane 

 iron. 



Fig. 20 shows the position of 

 the plane iron in operation. As- 

 sume the iron to be moving in 

 the direction of the arrow on a 

 piece of wood. The sharp point 

 would enter the board and, should 

 the grain be unfavorable, start 

 a splitting action, as shown at a. 



TTT i , i , i i FIG. 20. The Plane Iron in 



We wish to smooth the wood 



Action 



instead of roughing it, and must 



in some way stop the splitting. This is accomplished 

 by placing a cap iron on the plane iron, as shown at b. 



The cap bends and breaks 

 the shaving before the 

 splitting action has a 

 chance to begin, and gives 



b 



FIG. 21. Plane Iron, Cap, and Set 



Screw 



the spiral form so familiar 

 in wood shavings. 

 The cap is firmly fastened to the plane iron by a 

 stout screw, and this whole combination is fastened in 



