Patent GB-191316429-A (GB)
Title: Improvements in Knitting Machines.
Inventor: WINKLER ALBIN
IPC: D04B11/04
Filed: 1913-07-17
Granted: 1914-04-30
Abstract: 16,429. Winkler, A., and Leibfried, R. Oct. 3, 1912, [Convention date]. Parallel machines. - Relates to machines provided with two inclined rows of bearded needles which are operated, in some respects, somewhat as in the Cotton machine, and are provided with two loop-sinking devices, one for each set of needles, mounted in a swinging box-like frame 13, Fig. 4. This frame carries two sets of sinkers 99, 100, Fig. 11, jacks 101, 102, slur-boxes 150, 151 running on guide tracks 109, 110, and pressers 74, 75. The frame 13 is turned from side to side by means of a rocking member 7, Fig. 4, carrying rolls 10, 11 operated from cams 31, 32 on shafts 2, 3. The upper end is forked to receive a shaft 6 on which is mounted a gear-wheel 8 gearing with a rack 9 on the forked end. The movement of the member 7 is transmitted through a bellcrank 135 and connecting-rods 14, 15 to the frame 13. Mounted on the shaft 6, so as always to take up a position parallel to the frame 13, is a heart-shaped member 94, Figs. 11" and 11<c>, to which are pivoted by pin-and-slot connexions various connecting-rods such as 88 which depend from and modify the movements of the instruments in the frame 13. The connecting-rods 88, 89, 92, 93 are elevated by means of setscrews 113, 114, 121, 122 bearing on a lifting- surface 87 supported on links operated by a bell-crank. The connecting - rods 72, 73 for operating the pressers are elevated in a similar manner. The thread-guide is traversed by the action of a cam 26, Fig. 6, on rollers 148, 149 carried by a bar 152 loosely suspended from a shaft 33 by arms 154, 155. A vertical lever 27 pivoted at its lower end is connected to the arm 155, its upper end driving the slur-box &c. The top end is provided with swing mechanism so as to follow the swing frame 13 and actuates a shaft 19 which drives, with a lost motion, rods 115, 116 carrying the slur cocks, by pin and inclined-slot connexion. The impact of stops 160, 161 against a cross-head 157 attached to the rods 115, 116 causes the slur cocks to be alternately brought into and taken out of action. The action of the machine in the production of tubular fabric is as follows. Starting with the box 13 in the mid-position, as shown in Fig. 11<c>, both sets of jacks 101, 102 and the slur cocks &c. will be elevated. The right-hand jacks 101 &c. are supported by the connecting-rod 92, the roll 92<a> of which rests on a cam 107. When the box &c. is turned over into the position shown in Fig. 11<a>, the roll 92<a> rolls down the surface 107 lowering the jacks &c. The lifting surface 87 supporting the screw 113 is also lowered to allow the bar 88 to drop and bring the sinkers 99 into the working position. The needle-bar 59 is pushed up into knitting position by cam mechanism, the needle-bar 60 being simultaneously depressed. After a course of yarn has been laid, the needle-bar 59 is drawn back to bring the old loops under the beards, which are then pressed, whereupon the bar 59 is drawn still further back to knock over the loops. The surface 87 is then elevated to remove the right-hand set of loop-sinking instruments from the needles, and the box 13 and member 94 will be turned over in reverse direction previous to repeating the above-described process with respect to the needle-bar 60. To make plain flat work, one needle-bar and the shaft 6 are thrown out of action by shogging the cams 10 or 11, and the parts shown in Fig. 4 are left on that side of machine on which it is desired to knit. This is also the case when ribbed selvedged fabric is to be knitted. The Specification states that it is possible to allow the two rows of sinkers to operate alternately. For narrowing on tubular work, a pattern-controlled anchorshaped member 46, Fig. 7, carrying rollers 47, 48 working against stepped cams 42, 43 fixed on the shafts 2, 3, is tilted from the position shown in Fig. 7, which represents ordinary knitting to a central vertical position. The rollers 47, 48 are thus brought against suitable steps in the cams 42, 43 to shog the shafts 2, 3 to bring the narrowing-cams into operation. The threadlaying apparatus is also thrown out of work. For narrowing on one side of the bed, as in forming heel pockets, the anchor member is brought over a step further to the right. This causes the cam shafts 2, 3 to be again shogged to a position in which combined loop forming and narrowing cams come into action, and the thread-laying apparatus is restored to action.