THE YOUNG FARMER'S MANUAL. 415 



adjustable iron plate, which is bolted to the slide I. f is a thumb 

 set-screw, to regulate the proper depth to file the teeth. H is 

 another set-screw, for holding the file at any desired angle. 



621. When a saw is filed with such a filer, put it in the clamp 

 very true, with one end just as high above the jaws as the other. 

 Adjust the file to file hooked or not, and, with the set-screw and 

 wheel, run the slide b to one end of the clamp. Now, adjust the 

 post E by the thumb-screw on the lower end, to hold the file at 

 the desired angle. File the teeth on one side of the saw, and 

 carry the post E around, so as to bring the file at the same angle 

 in the opposite direction. After having filed one tooth, turn the 

 set wheel around once or twice, more or less, according to the 

 size of the teeth, which will draw the slide b along just so far. 

 If the slide is drawn along only a trifle too far at one time, and 

 not quite so far the next time, the teeth will not all be of a uni 

 form length. The file is so hung that in thrusting from you it 

 will cut, and can be raised a little when drawing it back. There 

 are several styles of patent filers. The proprietor of this one is 

 Mr. H. Miller, Ithaca, N. Y., who will furnish both filers and 

 rights to manufacture. 



622. Fig. 172 exhibits a section of a slitting hand-saw well 

 filed. It will be seen by the figure that the faces of the teeth 



FIG. 172. 



SLITTING-SAW WELL FILED. 



are at right angles to the cutting edges, or points, and are all 

 filed square across. It is not practicable to saw across the grain 

 with a saw filed in this manner. 



613. Fig. 173 is a crosscut section of a hand-saw well filed. 

 The faces of the teeth are at right angles with the dotted lines 

 along the points. Many filers contend, that if the faces of the 

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