. . "Referring to the drawings, A represents a hat, basket, lamp-shade, or other article, which is made of a number of splits, pieces, or sections, 13, that are cut out of thin wood, paper, or other material, and notched at both sides at two or more points, as shown in Fig. 3, and which are finally connected by interlocking them at the notches, as shown clearly in Fig. 2." . .