Improved production of eyeletted fabric trimmings

摘要

988,394. Sewing machines. KAYSER BONDOR Ltd. Jan.25, 1962 [Feb. 11, 1961], No. 5168/61. Heading D1G. [Also in Division B6] A machine for threading slotted fabric on to a needle carrying a ribbon comprises means for feeding the fabric, means for folding the fabric across the point of the needle to pass the needle through the eyelets, and means under control of the eyelets for controlling the folding means to ensure accurate alignment of the eyelets in the folded fabric with the needle. Ribbon R is supported by a needle 3 and is secured in the eye 3b of the latter adjacent the point 3c, the needle being fixed at its other end. The pointed end of the needle projects between aligned circumferential grooves 5a, 6a in a pair of co-operating feed rollers 5, 6. Eyeletted lace L passes through a guide 22 and tensioner 23, the eyelets E then engaging the teeth of a sprocket 12 carried by a shaft 12a for rotating the latter. The lace then passes between a pair of rods 13, 14 positioned ahead of the needle point 3c and carried at the end of an arm 15 pivoted at 15c. Arms 15a, 15b, located one on each side of pivot 15c, are respectively attracted on energization of respective solenoids 20, 21. Shaft 12a carried a pair of cam discs having out-of-phase lobes adapted to close two pairs of contacts alternately for energizing solenoids 20, 21 alternately and thus oscillating arm 15. Lace L is thereby folded ahead of needle 3 and is drawn over the latter in folded form by the rollers 5, 6, point 3c passing through the successive eyelets. A plurality of needles may be provided.