LEVEL LANDING WREATH, OR HALF TWIST--_continued_.
Fig. 1 shows the plank from which the wreath is to be cut out. Lay the
face mould on, and transfer the tangents on the face of the stuff.
Mark off each side of the tangent at P, O H to equal C H, Fig. 5,
Plate XIV., and cut the wreath out square through the plank, as shown
by dotted lines, taking care to have the wreath cut full on the minor
axis at A, and along the shank to S, as this part does not exceed the
width of the rail.
Fig. 2 shows the wreath after being cut out square through the plank.
Plane one side perfectly true, then get it to its required thickness.
It is very important that the stuff should be got to the same thickness
as drawn at the sections, that is, twice the thickness of O C, Fig. 5,
Plate XIV. Now make the joints square to the face of stuff and square
to the tangents, applying the square as shown. So much depends upon the
trueness of the joints that too much care cannot be taken with them.
Fig. 3 shows the face mould for the other side of the stuff. Lay the
face mould, Fig. 4, Plate XIV., on a thin piece of stuff, and mark off
on to it the tangents S A B C P and the section lines, stick a bradawl
through 5 and 6, and mark off on the section lines, on each side of
C 5 and 6, the width as shown opposite to the first face mould. Fig. 4
shows the application of moulds.
[Illustration: PLATE 16.]