GB209578A - Improvements in or relating to circular knitting machines - Google Patents

Abstract

209,578. Wade, H., (Mercury Mills, Ltd.). Dec. 7, 1922. Circular machines.-A rotarv needle cylinder machine is provided with means for intermittently raising and lowering the high splicing finger 3 and with co-operating means, which cause the finger to be in operation for increasing periods in successive revolutions, so as to knit a high spliced area of tapering configuration. A rotating cam 14, having high and low cam portions 14<b>, 14<a> acts through intermediate levers &c. 5 - - 12 to throw the finger 3 into or out of feeding position. To the hub 19 of the cam 14 is secured a disc 21 with a recess, the shoulder 22 of which is circular and concentric with the hub. Arcuate segments 23, 23<a> the peripheries of which are flush with the high portion 14b of the cam 14 are moved towards each other until the length of the low portion 14<a> on which the roller 13 runs is reduced to zero and by subsequently gradually increasing their distance apart a high splice of inverted V configuration is produced. A pin 32, Fig. 4, screwed into the segment 23 extends through a pinion 31 journaled on the hub of a pinion 24 and meshing with a gear 29, Fig. 3. Another gear 26 connected by a friction clutch to the gear 29 meshes with the pinion 24. The dimensions of the gears are such that the segment 23 moves a short way relatively to the cam part 14<a> at each revolution of the shaft 15. The pin 32 also extends through jaws 36 on a slide 35 provided with other jaws 39 through which a pin 37 fixed to the segment 23<a> extends. As the pin 32 moves round it carries with it the slide 35 and causes the pin 37 and segment 23<a> to move in the opposite direction. The friction clutch consists of a ring 43 which is caused to expand and engage a flange 44 of the gear 29 by means of a cam 45 on a bell crank controlled by the pattern drum 17. The segments 23, 23a may also be moved apart against the action of a spring by a flexible member or a series of steel balls in a groove. The finger 3 is held out of feeding position by the action of the pattern mechanism during the knitting of the parts of the stocking which are not required to be spliced.