Note 6 — VII. MELON SHAPED BASKETS

Note.—Let AA represent the orthographic projection of the two rings. From the point x, with a radius equal to xy, draw the quarter circle. Divide this quarter circle into three equal parts from 1 to y, and connect the points of division with lines to point x. Lay off lines parallel to these one-eighth inch apart to represent the space to be allowed for the weavers. This will show the projection of one side of the basket with the ribs in position. Draw a quarter circle on the right hand side. From the center line, at point 2, lay off distances on this quadrant about an inch apart as shown at 2-a-b-c-d. Project these to the left on to the line xy, and with x as a center, continue these projection lines with arcs crossing the center rib, as shown. Draw chords 4, 5, 6, 7, and 8. Take a piece of stiff paper or of the material to be used as ribs and bend around from 1 to 3 to get the true length which will be the distance 1 2 3 as shown above at B. Draw the two center lines at right angles, crossing at 4. Lay off distances 4 5, 5 6, 6 7, 7 8 on either side of 4 corresponding with the distances 2a, ab, be, and cd. On these, by means of arcs, lay off distances equal to the lengths of the corresponding chords 4, 5, 6, 7, and 8 in the view AA. A curve tangent to these arcs shows one contour of a rib.

If many baskets of this size are wanted it will be found convenient to make a pattern for each size and mark it properly. If the basket wanted is more than six inches in diameter more ribs will be needed, and the small lay-out C will give the proper suggestion.