GB503525A - Improvements relating to elastic fabrics and elastic gores for boots and other apparel or the like - Google Patents

Abstract

503,525. Elastic fabrics for shoe gores &c. DAWES, R. T. Oct. 6, 1937, No. 27081. [Class 142 (iv)] [Also in Group VII] The fabric has elastic strands grouped in greater numbers (shed together) near one or both edges than at and near the centre, so that the margin or margins of the gore offer greater resistance to stretch than the body thereof. Thus the fabric may have groups of two elastic strands 10, Figs. 9 and 10, and one stuffer warp thread at one edge and groups of one elastic 8 and two stuffer warps 26 elsewhere interwoven with parallel sets of weft threads 24, 25, which also interweave with warp threads 27, so that the edge of the fabric serving as the upper edge 7, Fig. 2, of the gore, which is most stretched in use, is more elastic than other parts of the inserted gore. The elastic strands are equally spaced and the fabric is of uniform thickness throughout. The gore may comprise such elastic fabric covered whilst stretched with leather &c. previously scored with parallel lines cemented to the face and also over the free edge 7b, Fig. 6, of the fabric. By arranging the elastic yarns in groups of varying numbers the elasticity may be made to vary progressively from the body portion to a selvage, or as shown in Fig. 16, towards both selvages. The latter fabric may be covered at 65, 66, 67 with leather and be used for gores 58, Fig. 15, having two free margins, or it may be cut as shown in Fig. 18, to form two independent gores. Various forms of gores are referred to. The numbers of warp threads between the grouped elastic threads may vary. Cotton, silk, artificial silk, or wool stuffer warp threads may be used.