al admiration. It the dovetail must have such a taper that its sides may both tend towards the point, X, before alluded to, namely, the in- tersection of the axes of the shafts. This will be the case if, when one side of the dovetail template has been set square, the other is square also. By this… … tioned the property which wood has of altering its size ac: | whecl, we had, in forming the box for shaping the teeth, sim- cording to the dryness or humidity of the atmosphere, which : ply to draw out on each end the natural size of the tooth, Fig. 205 isa sectional elevation and plan of a bevel…
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