Patent GB-763241-A (GB)
Title: Improvements in or relating to sliding clasp fastener arrangements
IPC: A44B19/02
Filed: 1953-07-14
Abstract: 763,241. Sliding clasp fasteners. STICKEL, K. G. July 14, 1953 [July 14, 1952], No. 19515/53. Class 44. A sliding clasp fastener has decorative members 2 assembled along the free edge of one of the fastener stringers 1, coupling means 3 formed by or provided on the free edge of the other stringer and a slider 16 for effecting interengagement or disengagement of the decorative members and coupling-means, each decorative member being provided with a cavity 5 for the.reception of means formed by or provided on the stringer edge for holding the decorative member thereon, and a further cavity 12 for the reception and retention of the coupling means on closure of the fastener, and is characterized in that the cross-sectional shape of the coupling means and cavities into which they fit conform to one another, the holding means and coupling means being covered laterally by the decorative members when the fastener is closed. First example.-In Fig. 1, oval-shaped coupling members 3 are adapted to engage between shoulders 10 on web portions 6 of adjacent decorative members 2, the members 2, 3 having grooves by which they are secured to the edges 4, 11 respectively of the two stringers. The members 2 may be pressed on to, or loosely pushed along the edge 4. The slider 16 has a small guide-channel 18 and a large one 19, separated by a guide web 17 which may have a guide tongue 25 which engages in the cavities 12 in the members 2. The slider 16 may be provided with a locking spring 27 (Fig. 5) arranged in an opening 28 and having a projecting portion 32 which is engageable in a gap between the members 2. The spring 27 can be disengaged from the locking position (as shown dotted in Fig. 5) by means of a pulling member 36. The coupling members 3 may alternatively be of oval-cylindrical shape as seen in Fig. 3 (not shown). Second example.-The decorative members 51 (Fig. 8) are pressed or slid on to the edge 59 of a stringer 55 while the edge of the other stringer 56 forms a continuous coupling strip 64. Each member 51 has a groove 60 into which the strip 64 is introduced by twisting it by means of the slider 65 as seen in Fig. 8 and Fig. 9 (not shown). The groove 60 in each member 51 is formed by cheeks 61, 62, one of which (61) is bent inwardly more than the other. As shown in Fig. 10, adjacent members 51 have the cheeks 61, 62 arranged on alternate sides. A projection 52 on the bottom of each member 51 engages in a recess 53 in the top of the adjacent member 51. In a modification (Fig. 11, not shown) the openings between the cheeks of the decorative members are arranged at an inclination and staggered relatively to one another. In Fig. 12 (not  shown) the openings are wedge-shaped, the members being adapted to co-operate with a stringer having a beaded edge with bulges and constrictions (Fig. 14, not shown). In a further modification (not shown) the openings are tapered from both ends towards the middle. Third example.-In Fig. 16 the decorative members 116 are retained in position on one half a of the fastener by means of gripper parts 114 which engage in recesses 136, 137 (Fig. 22) in the elements 116. The other half b of the fastener comprises gripper parts 117 which may be of the same shape as the parts 114 and are adapted to be engaged in the recesses 136, 137 by means of a slider 145. The slider 145 is provided with a locking-spring 155 (Fig. 25) which is retractable by means of a pulling member 161. A guide channel 146 in the slider 145 may be enlarged as at 151 to prevent wear on the front faces of the decorative members 116. Fig. 26 (not shown) illustrates a method of assembling the decorative members on to the fastener half by bending the beaded edge of the latter. Figs. 17, 18, 19 (not shown), illustrate modified gripper constructions.