Patent GB-191406533-A (GB)
Title: Improvements in, or relating to, Hosiery Knitting Machines.
Inventor: SCOTT ROBERT WALTER
Filed: 1913-05-31
Granted: 1914-05-28
Abstract: 6533. Scott, R. W. May 31, 1913. Circular machines.-Relates to yarn feeding and changing apparatus under control of the pattern mechanism. The apparatus is shown with reference to a machine of the type described in Specification 12,722/13 and is, in particular, applicable to a machine intended to produce complete articles of hosiery or stockings having a selvedge, welt, or end finish, formed integrally at an end of the article and having, if desired, heel and toe pockets, sectional reinforcements extending for the whole or part of the way round the product and comprising connected parts formed of different colours, kinds, or arrangements of yarn. A latch ring 550 pivoted at 552 carries a shaft 554 on which is mounted an unusually large number of yarnguides F, for example five. The guides are held down in action by springs and are pushed out of action by thrust bars such as 460b operated directly by the pattern drum. The splicing- thread guide. F<3> is operated by a thrust bar 460<b> having a projection s<1> and a recess s<2>. When the guide is down, the projection s<1> is in the path of an adjustable cam on the flange of the web-holder dial 295, which throws the bar 460<b> back, starting at a predetermined needle, to the extent permitted by the recess s<2>, while the upper end of the bar, by acting on a camlug s<5> throws the guide F<3> sharply out of action. A yarn clamp and cutter, operated directly from the pattern drum through a thrust bar acting on a lever 611, is also provided. The tension apparatus, Fig. 8<a>, employed during reciprocation is under control of a thrust bar 460<i> operated by the pattern drum. The bar 460<i> has attached to it bent wire tappet arms 645 which normally hold down spring-urged bell-cranks 632 carrying wire tension arms 631. In this position, the bell-cranks 632 also support, against gravity, tensiondisks 636 and allow to the yarns a free run through the eyes 627, 629, and the ends 630 of the wire arms 631, below the tension disks 636, and through the eyes 637. When the bar 460' is elevated, during reciprocation, the tension arms and the disks 636 are released. The latch opener comprises a rotary bristle wheel mounted at an angle of forty-five degrees to the vertical. An incomplete annulus 565. Fig. 6, having pointed ends 566 is mounted within the latch ring 550 and is shifted circumferentially during heel and toe work to close the latch ring. This is done from the pattern drum bv a thrust bar which also presses in a cam 312. Fig. 9. for operating the long-butted webholders. The web-holders 292, Figs. 12 and 13, are provided, some with long butts 298, and others with short butts 29. The upper surface 299 of the upper arms 291 is sloped upwardly at an angle. The web-holder cams comprise an ont-throw cam 306. Fig. 9, adjustable pivoted in-throw cams 309 housed in slots in the flange 302, and a pivoted cam 312 lying opposite the cam 306. The cam 312 only acts upon the long butts 298 and determines to an adjustable degree a longer loop-drawing stroke of the needles at the web-holders so moved.