id author title date pages extension mime words sentences flesch summary cache txt mdp.39015086544916 Lewis, Walter Scott Comparative tests of stitches and seams / by Walter S. Lewis ... 1917 .txt text/plain 479 26 78 Fig. 6.—Double-locked stitch seam probable that with the freedom of movement, which is a characteristic of the under thread of the double-locked stitch, the tensions on the upper and under threads of the seam are more uniformly distributed, thereby causing a higher breaking strength Table 1 shows that cutting one stitching thread at the middle of the seam weakened the double-locked stitch less than it weakened the shuttle stitch. Previous results of tests have shown, all other things being equal, that the resulting tensile strength of the seam is the same when seam of the shuttle stitch. shown that equal test strengths were obtained when specimens sewed by the double-locked stitch. of the double-locked stitch. found that the shuttle-stitch seam was weakened much more than the double-locked stitch and that the pulling out of the threads Photographs of two of these test specimens are shown, ./cache/mdp.39015086544916.pdf ./txt/mdp.39015086544916.txt