Patent GB-737501-A (GB)
Title: A new or improved method of and means for stitching fastenings to corsets and like garments
Inventor: SIMPSON WILLIAM
IPC: D05B73/12
Filed: 1953-04-13
Abstract: 737,501. Sewing-machines. NEWEY BROS., Ltd. April 12, 1954 [April 13, 1953], No. 9967/53. Class 112. Means for simultaneously stitching a hook and eye tape and a sliding clasp fastener to a corset or other garment comprise a grooved throat plate 19 adapted to guide one member of the hook and eye tape beneath the needles of a two-needle sewing-machine, means associated with a presser foot 32 for guiding the elements of the sliding clasp fastener, and a flanged guide 45, located in front of the throat plate, for the other member of the hook and eye tape. The throat plate has a square-section groove 20 and a pair of upstanding shoulders 21 one on each side of the groove and set back from it, with the width of the shoulders equal to the width of the hook tape and the width of the groove itself sufficient to receive the hooks and allow them to slide freely through. A plate 26 secured to the upper surface of the throat plate has a lip 22 overhanging the groove and formed with an aperture 23 for one of the needles. A relatively short feed dog element 28 is disposed in a slot 24 behind the lip. A longer feed dog element 29 lies in a slot 25 on the opposite side of the groove and is formed with an aperture 31 for the other needle. The presser. foot is pivoted at 33 to an extension 34 at the lower end of a presser bar 35, and is formed at one longitudinal edge with a downwardly projecting lip 36 which merges into a forwardly projecting nose 37. A lever 40 is pivoted to the presser bar by means of a screw 41 which passes through an elongated slot in the lever. One end of the latter is pivoted at 42 to a fixed vertical arm 43, and the other carries a horizontal shoe 38. Downward movement of the presser bar thereby carries the shoe 38 from a raised position to a position in the same horizontal plane as the presser foot but spaced laterally from it-said spacing serving as a guide for the sliding clasp fastener elements. The guide 45 is carried by a bar 48 adjustably secured by a screw 49 to a section 50 of the work table, the latter being formed with a shallow groove 51 aligned with groove 20. In the stitching operation, the two members of the hook and eye tape are separated, and the rear end of the hook tape is inserted into the throat plate with the hooks in the groove 20 and the tape lying between the shoulders 21, the rest of the tape lying in the groove 51. The slide fastener is then opened and one side is placed upon the hook tape with the fastener elements abutting the outside of the presser foot, and the fabric is then placed in position with one edge abutting the lip 36. The presser foot is then lowered, and this also moves the guide shoe 38 into engagement with the outside edge of the fastener elements. Stitching is now commenced, the feed dog elements engaging the hook tape on each side of the hooks. Stitching is stopped with the needles in the material after a length has been done; the presser foot is raised and the slide fastener is closed, the slides passing under the presser foot. The presser foot is again lowered and stitching is continued past the end of the fastener elements. The presser foot is then raised and the hooks and eye are engaged with each other. The assembly is then turned through 90 degrees and the stitching is continued across the assembly until the stitching takes in the eye tape. The assembly is again turned through 90 degrees, the eye tape is placed in the guide 45 and the stitching is completed, the closed elements of the slide fastener being again guided between the presser foot and the guide shoe.