Patent GB-371293-A (GB)
Title: Improvements relating to builder motions for ring, cap or flyer spinning, twisting and analogous machines
IPC: D01H1/36
Filed: 1931-11-11
Abstract: 371,293. Bunch-building motion for ring, cap, or flyer spinning and like frames. PRINCE-SMITH & STELLS, Ltd., Burlington Shed, and SMITH, W. PRINCE-, Hillbrooke, both in Keighley, Yorkshire. Nov. 11, 1931, No. 31262. [Class 120 (ii).] In ring, cap, or flyer spinning, twisting, or like frames provided with Scaife's building- motion for winding tubes or spools of the kind employed in Northrop and similar looms having automatic spool-changing mechanism, the bunch-building motion is so constructed that, (1) the bunch is built at the base of each spool irrespective of the angular position or setting of the building-motion cam when the frame is stopped, (2) the standard pick is automatically converted to the short pick for building the bunch, and (3) a predetermined length of yarn, unaltered by any change in the counts of yarn or in the speed of the lifter motion, is wound in the bunch. In Fig. 1 the invention is shown applied to a ring frame and in Fig. 7 to a cap frame, a manually-set regulator 44 operated by the front roller shaft being connected in each case by a Bowden wire or like means 38 to disconnect the motion when a determined length has been wound, the building thereafter proceeding normally. The short lever 13, Fig. 1, of Scaife's motion oscillates a lever 11 and bv contact with a bowl 10 on the chain rod 9 operates the ring rail to build the bunch. During this operation a member 22 on the rod end iron assembly is maintained in the position shown out of contact with a bowl 20 carried by the chain rod by means of a catch lever 36 connected to the wire 38. The catch lever 36 engages a cam on an arbor 30 carrying a pinion 24 which engages a rack 23 on the member 22. The rack 23 is operated prior to starting the frame by means of a hand-wheel 31 on the arbor 30 to lower the member 22 into the position shown, the movement effecting the winding of a clock spring 35 so that, when the catch lever 36 is tripped, the spring, assisted by a cushioning spring 33A, rotates the pinion 24 and raises the member 22 so that it engages the bowl 20 and normal building commences. In a cap frame the short lever 13 is of normal construction, the equivalent of the lever 11 in the above-described arrangement being constituted by a lever 58 mounted on a rack member 59 on the rod end iron and carrying a bowl 60 adapted to engage a stationary stop plate 61. The rack 59 is raised to the position shown for winding the bush by means of a hand-wheel 69 geared to a pinion 70A, a spring 35 being wound up during this operation and the parts locked by a catch lever 74 connected by a wire 38 to a regulator 44 operated by the front roller shaft as in the above-described arrangement. During the winding of the bunch a short pick is imparted by reason of the bowl 60 functioning as the pivot of the lever 58 which contacts with a rounded lug 63 carried by the chain rod 9. When the bunch is wound the lever 74 is tripped and the spring 35 lowers the rack 59 and normal building proceeds by engagement of a lug 64 carried by the chain rod with a stop 65 on the rod end iron.