Patent GB-444062-A (GB)
Title: Improvements in or relating to balling machines for sliver
IPC: D01G27/00
Filed: 1934-06-12
Abstract: 444,062. Sliver - balling apparatus. PATERSON, H., Cheviot Jute Mills, Budge Budge, Bengal, British India. June 12, 1934, Nos. 17401 and 20951. [Class 120 (i)] In a machine for forming balls, rolls or discs of sliver in which the ball is formed between a pair of plates 1, Fig. 1, upon a toothed centre or centres 5 concentric with the plates and driven by a toothed wheel 34 initially engaging with the teeth of the centre or centres and thereafter engaging frictionally with the periphery of the ball, the toothed driving wheel 34 is carried on a pivotally mounted arm 36 automatic means being provided for initiating the formation of a fresh ball comprising a device for swinging the arm towards the centre or centres 5 so that the driving wheel is brought into mesh with the teeth thereon. The arm 36 is secured to a shaft 40 and is swung into its operative position by means of a cam 22 on a counter shaft 41. A stop is provided to limit the motion of the arm towards the centres. The plates or discs 1, 1<a>, Fig. 2, are rotatably mounted on ball bearings 2 supported on brackets 4, the radial arms of the bracket supporting the plate 1 having studs engaging inclined slots 35, Fig. 4<a>, in radial arms 3 thus permitting a limited lateral movement of the arms 4 and plate 1. The centres 5 are formed with saw-edged teeth on their meeting faces and driving teeth 46 on their inner peripheries and may be retracted by rods 47 connected to the ends of levers 6 pivoted at 48 and provided with rollers 49 engaging cams 20 on the shaft 41. The centres 5 are pressed together by flat springs 29. The driving wheel 34 is rotated from the driving shaft 39 through pinions 14, 11. The arm 36 is provided with a brake drum 12 having a brake band 31 connected to a projection 53 on a bell-crank lever 32, 32<a> pivoted at 54, Fig. 4, a stud on the lever 32 engaging a cam 21. The arm 32<a> is connected by a link 7 to the arm 45<a> which controls the axial movement of the plate 1. When the cam 21 is rotated clockwise, Fig. 4, the bell - crank lever 32, 32<a> rotates anticlockwise and moves the lever 46 sufficiently to retract the plate 1 and release the brake-band 31 so as to free the pulley 12 and the arm 36. The cam 22 controlling the arm 36 co-operates with a roller 56, Fig. 5, mounted in a member 23 connected at its end to a lever 57 pivoted at 57<a> in the arm 36 and bearing at its lower end against a spring 33 connected to an abutment 70 on the arm 36. When the cam is at maximum lift as shown in Fig. 5 the driving wheel 34 is in mesh with the teeth 46 on the centres 5 but has limited movement against the spring 33 until the abutment 70 contacts with the lever 57. The countershaft 41 is rotated one complete revolution to remove a finished ball and start a new one, the pinion 14 driving through intermediate pinions 16, 17 a pinion 19 rotatably mounted on the countershaft 41 and having a clutch comprising a sleeve connected to the pinion 19 and provided with a radially extending tooth 59, Fig. 8. A flanged disc 61 is secured to the shaft 41 and a pawl 62 pivoted at 63 therein, an arm 64 bearing against an arm 37 of a bell-crank lever pivoted at 65 and of which the other arm 66 projects radially to engage in a recess 67 formed in a rod 15 pivoted at 68 and forming an extension of the hand lever 10 which may be moved at any stage of the operation to remove the ball. The rod 15 may also be raised by the arm 36 or by an abutment thereon. On the lever 15 being raised the pawl 62 is moved inwardly by the spring 69 so that it is engaged by the tooth 59 and the cam 21 is rotated to release the brake band 31 and retract the plate 1, the cams 20 also being rotated to retract the centres 5. The tendency of the arm 36 to move when thus released is checked by a tight bearing. The arm 36 is then moved by the cam 22 back to the starting position. Before the driving wheel 34 has reached the starting position the finished ball has dropped out of the machine and the sliver passing downwardly from the rollers 8, 9 passes from the surface of the wheel 34 across the axis of the retracted centres 5. Final rotation of the shaft 41 then brings the centres 5 together with the sliver gripped there-between and the teeth 46 in mesh with the driving wheel 34. The plate 1 is then moved inwardly by the cam 21 which simultaneously applies the brake band 31 to the drum 12. The cams 20, 21, 22 on the countershaft 41 are disposed so that when the lever 15 is lifted the brake 31 is immediately taken off to remove pressure from the roll. Then the plate 1 is retracted and the centres 5 withdrawn and on clockwise rotation of the shaft 41 the arm 36 is moved up to the engaging position in about threequarters of a revolution of the cam 22. The other quarter of the cam surface is circular the driving wheel 34 being maintained in its initial operative position and the sliver being picked up and the brake band 31 reapplied during this quarter revolution. The slight increase in diameter of the roll is taken up by the spring 33. The brake drum 12 may be connected with the arm 36 through a ratchet and pawl device which permits free movement towards the centres 5 but only allows movement away therefrom against the resistance of the brake band 31. Specifications 158,776, [Class 120 (i)], and 412,044, are referred to, and Specification 394,548 is referred to in the first Provisional Specification.