416 



THE YOUNG FARMER'S MANUAL. 



v teeth are filed at right angles they will be too hooked. But if 

 filed in this style a saw will cut much faster and easier, and it 



FIG. 173. 



C!;os<(TT WELL FILED. 



coincides with the manner of filing adopted by our best me 

 chanics. 



624. Fig. 174 shows a saw badly filed; but it is an exact rep- 



FIG. 174. 



BADLY FILED. 



resentation of many saws that have been filed by those who do 

 not understand the principle on which saws are sharpened. By 

 a glance at the dotted line along the edge it will be seen that a few 

 teeth only must do all the sawing. (See Par. 611.) I have 

 taken this figure from a saw that was brought to me to be filed ; and 

 some parts of it had been filed worse than this. It had been filed 

 with old worn-out files until its proprietor found it impossible to 

 cut off a narrow board with it. 



625. Now in order to put it in sawable order it was put in the 

 clamp and jointed, and all of the teeth started in filing of the 

 proper form, and then the teeth were set. It is not always most 

 advisable to restore such teeth to the most proper form at one fil 

 ing unless one has much sawing to perform. If a saw-filer is 

 used it will be much easier to restore the correct form of the teeth 

 than it will be when filing by hand. When filing such a saw by 



