THE CIECtTLAR SAW. 207 



in the business pretty extensively he can buy the section frames more 

 cheaply than he can make them, but even when these are bought, the 

 saw is indispensible for cutting out frames, hives, and the multitude of 

 small pieces that are constantly needed. The saw being so useful, in 

 this section, we propose to give some directions for managing it so as to 

 have it work satisfactorily. 



In the first place it is necessary that the saw should be perfectly round. 

 It should be screwed on to the mandrel, and a mark put on both, so that 

 always afterward it may be replaced in exactly the same position, if it 

 is ever required to be removed. Now, the mandrel should be placed in 

 its bearings, and the belt put on, so that it may be just tight enough not 

 to slip. Next an emery wheel should be laid upon the table over 

 the saw slot, and then the table must be lowered until just the points of 

 any teeth that may be longer than others will touch as the saw is turned. 

 The saw must be run and the table lowered gradually till every tooth 

 touches, when the saw will be round. The emery stone will not be in- 

 jured, nor will the saw either, even if some teeth are ground off blunt. 

 The point does the cutting, and if that is sharp, it does not matter how 

 broad the tooth is. Next the saw is to be filed. The ripper can be 

 filed best with a cant file. [See cut Fig. 1.] Large enough to fit the teeth 



Fig. 1. 

 of the saw, which by the way, must be as small for the size of the saw as 

 they are ever made. The cross-cut, is filed with the ordinary three- 

 cornered file. The filing must be done entirely on the under side of 

 the tooth, and should not be continued after the point is sharp. The 

 under side of each tooth of the ripper should have the direction of a 

 tangent to a circle of half the diameter of the saw, and if the cross-cut 



