Patent GB-189919211-A (GB)
Title: Improvements in Circular Knitting Machines.
Inventor: MOORE JOHN CHARLES
Filed: 1899-11-23
Granted: 1900-11-17
Abstract: 19,211. Moore, J. C. Nov. 23. Circular knitting - machines. - Relates to improvements in the machine described in Specification No. 20,640, A.D. 1895, having for their object the making of rib fabric and stockings automatically. The ribbing-dial b is carried on a spindle c passing through the rotating ribber arm a. On the spindle c is fixed an arm e having a plug fitting in a hollow stem g capable of rotation in a fixed arm d. A prong m, fixed in the stem g and working in a groove a', causes the sleeve g to rotate with the ribber arm, and so prevents ravelling of the thread which passes through the hole h while the ribber dial is held stationary. Figs. 3 to 6 show new forms of needles and spring jacks ; the needles and springs do not require soldering to the jacks. The sinkers or web holders are provided with rounded parts e, Fig. 11, on which they pivot. Instead of a straight spring, a coiled spring b, held in a suitable slot in the sinker by a clip d, is used. By pressing the sinker back beyond the projection c, it may be readily removed. Fig. 12 shows a modified form of the narrowing or depressing levers used in the above-mentioned machine ; each has a shoulder a to be acted on by a suitable cam to put the needle out of action independently of the action of the spring needle and jack. A clip, Fig. 13, is fixed to the lever at the point c, and is acted on by a cam which controls and holds out of action those needles of which the loops have been transferred to rib needles. The draw-down cam a, Figs. 15 and 17<A>, is carried on a slide a' working in a slot in the cylinder. On the slide is pivoted a yoke with projections c, d the bits on the needle jacks strike the projection c or d, and move the slide and cam bodily until the stop b or b<1> reverses the position of the yoke. The cam is made with a dwell or rest at b, so that the latch, when not completely closed, may have the thread wrapped round it as in hand-operated machines. After passing the cam a, an incline c presses the spring jacks into the cylinder, so that the needle is not completely raised until it gets to the incline d, whichever way the machine is rotating. A cam f, bevelled at g, is used to act on the depressing levers as mentioned above. Figs. 18 and 23 show a yarn trapper for use in splicing. The main thread passes through a pivoted guide a pressed upwards by a spring g<1>. The splicing-thread passes over a slackening arm b and through a guide c<2> and between the arms of a yarn trapper close I by a spring f and opened by the action of a bevelled arm e, Fig. 23. In the position shown in Fig, 18, the main thread alone is being knitted. By the action of a cam on a rotating part, and a rod on the parts g and e, the arm b is raised, and a cam h<1> acting on a pin h depresses the guide a and brings the main thread alongside the splicing-thread ; the trapper is opened by the action of the ldver e, and the splicing-thread is carried along by friction. When splicing is to cease, the action of the ca@n and rod on the parts g, e, lowers the slackening-bar b, raises the guide a, and allows the trapper to close.