two. We then put between thejaws of the double eye, the center piece, C, and find thecenter of the jaws, as shown by D; then, setting a pair ofcompasses to half the required width between the jaws, wescribe upon both the jaws the segments of a circle, E and F,using D as a center; then opening the… … work tru* by tham, and S 6 is made long to supply the da-flclenoy. After setting the oompasses to half the requiredthickness of the stem, we mark, using the line, S B, as acenter, the segments of a circle, Q and B, and from themmark the lines, T and U, which define the required thick-ness of the…
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