Construction work in cardboard and paper for grades I to IV, without the use of tools; with a course in woodwork for the fifth grade . 57 58 APPLICATIONS* 101 APPLICATIONS. A slight modification in the preceding constructiongives a cube of which one of the angles is concave, andthus forms in the inside a triangular pyramid (Figs. 57and 58). Before superposing one of the two branches of the crosson the other, make the folds ABCD (Fig. 56); then bysuperposing the point C on the point B, make a hollowangle of which the vertex is in O. To form angles with the three other branches, proceedas before
Construction work in cardboard and paper for grades I to IV, without the use of tools; with a course in woodwork for the fifth grade . 57 58 APPLICATIONS* 101 APPLICATIONS. A slight modification in the preceding constructiongives a cube of which one of the angles is concave, andthus forms in the inside a triangular pyramid (Figs. 57and 58). Before superposing one of the two branches of the crosson the other, make the folds ABCD (Fig. 56); then bysuperposing the point C on the point B, make a hollowangle of which the vertex is in O. To form angles with the three other branches, proceedas before. RSii ilSj^ to 61 60 S3 APPLICATIONS. 105 APPLICATIONS OF THE THIRD CONSTRUCT TION. Materials.—Nos. 13, 14, 15, 16, 25, and 26. Fig1. 59. Bind the cubes together by passing- a band ofpaper along the interior faces. We thus form the firstrunning ornament. Fig. 60. By passing the band through the diagonals ofthe cubes, we obtain the second running ornament. Fig. 61. Two square rings constituting the cube beingbound together so as to form a chain.
Size: 1327px × 1882px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, bookpublisherchicagoaflanaganco
