Patent GB-439285-A (GB)
Title: Improvements in axminster tuft yarn pattern setting frames
IPC: D03D39/02
Filed: 1934-04-30
Abstract: 439,285. Winding tuft-yarn spools. PLATT BROS. & CO., Ltd., Hartford Works, and BOTTOMLEY, W., 4, Fern Street, Chadderton, both in Oldham. April 30,1934, No. 12921. [Class 142 (iv)] Spools e, Fig. 5, for use in Axminster loom tube frames are wound by means of rollers a, b, c, the roller b being situated above the roller a whilst winding is proceeding, and the roller c being mounted in slide blocks and moved horizontally towards the rollers a, b, by lever mechanism under spring or weight control. Either one, two or all three of the rollers are driven positively either clockwise or counterclockwise, accordingly as the spool is to be overwound or underwound, and at the same or different speeds the roller or rollers not positively driven being rotated by the spool. Tension may be applied by causing the yarn to engage such roller or rollers, or by rotating the rollers at different speeds, the yarn first contracting with the slowest moving roller whether the spool is being over or under wound. The roller b is preferably carried by levers f, Fig. 6, so that it may be moved from an operative to an inoperative position as shown in dotted and full lines in Fig. 5. The roller c may be acted upon at or near its ends by independent levers or arms and springs or weights. Driving mechanism is referred to for rotating one of two rollers in one direction under clutch control or the other in the opposite direction also under clutch control, or as described below, for rotating the three rollers at different speeds, and all either clockwise or counterclockwise. The rollers as shown may be driven by chain gearing from shafts 13, 21, 24, Fig. 6, arranged in a casing 3 containing lubricant, the sprocket wheel u on the roller a being larger than those in the other rollers. Bevel wheels 5, 6, Fig. 8, loosely mounted on the bosses of sprocket wheels 9, 10 mounted loosely on the shaft 13 are driven in opposite directions by a bevel wheel 4 fast on a shaft driven through clutch mechanism from a motor &c. the sprocket wheels 9, 10 being geared by chains 18, 19 to sprocket wheels 20, 25 loosely mounted on the shaft 21 and to sprocket wheels such as 23, Fig. 9, fast on the shaft 24, the chains being tensioned by passing around sprockets on adjustably mounted studs 34. By means of a clutch 30 slidably keyed to the shaft 21, and a clutch 16 slidably keyed to the shaft 13, which clutches are operated simultaneously by yokes 42, 39 and arms on a shaft 36, the bevel wheel 5 may be caused to rotate the shaft 13 in a clockwise direction, as shown, the chain 18 then driving the shafts 21, 24, also clockwise through the sprocket 20 and clutch 30 and the fixed sprocket 23 respectively, or the clutches 30, 16 may be actuated so that the bevel wheel 6 rotates the shaft 13 and the sprocket wheel 25 is rotatably connected to the shaft 21, the shafts 13, 21, 24 being now all rotated in a counterclockwise direction. The sprockets are of such size that whatever the direction of motion of the rollers a, b, c, the slowest moving roller first contacts with the yarn. The clutch 16 has teeth to correspond with the teeth 7, 11, 8, 12 on the bosses of the sprocket wheels 9, 10 and on the bevel wheels 5, 6.