Patent GB-420338-A (GB)
Title: Method of and apparatus for automatically transferring thread ends from a rotating reel
IPC: B65H67/08
Filed: 1933-12-27
Abstract: A device for removing a thread end from a rotating reel comprises a rotatable wheel positioned adjacent to the periphery of the reel by means of which a thread end is severed and blown so as to cause the thread to run off the reel.  The device is particularly applicable to reels of the type on which thread is automatically wound and laterally displaced, and on which artificial silk threads are treated with liquids <PICT:0420338/IV/1> <PICT:0420338/IV/2> <PICT:0420338/IV/3> continuously with their production.  The rotatable wheel may be mounted between two such reels, so that the thread end severed from one reel may be brought into contact with, and automatically begin winding on, the next reel.  The device consists of a wheel held resiliently in engagement with the reel, and rotated in the same direction as, but independently of, the reel; and may comprise a disc having resiliently mounted peripherally disposed members for severing the thread, the disc being so arranged as to cause an air blast to impinge on the severed thread so as to blow it away from the first reel on to the second.  Thread from the spinning bath is led to the top reel 1, comprising two skeleton reels 12, 13 mounted one within the other on eccentrically disposed bearings 14, 15 whereby the thread is automatically advanced axially along the reel in known manner, during which time it may be subjected to liquid treatment, such as washing, desulphurizing or bleaching, by spray from the nozzle 7 fed by the pump 9 from the trough 8.  When the thread reaches the end of the reel it is severed by the rotating wheel 17 held in a bracket 18 resiliently attached to the casing 5 by means of a rubber ring 19, Fig. 3.  The position of the severing wheel with respect to the reel is altered by adjusting nuts 35 on the bolt 32, which is attached to a lug 33 depending from the bracket 18. The severing wheel is driven by belt 22 and pulley 23 in the same direction as the reel 1, so that the contacting peripheral portions of the wheel 17 and reel 1 move in opposite directions.  The wheel carries blades 57, resiliently mounted on a rubber ring 53, Fig. 4, to minimize wear on the reel.  The blades are of stainless steel when used in the presence of caustic reagents, or of aluminium alloy with acid or other baths.  The severing wheel is mounted in the bracket 18 by a screwed casing 48 which ends in a shroud 47.  A second shroud 45 rotates with the blades.  Air may may be blown through the annular space between the two shrouds, and so help to remove the thread end from the reel 1, air being drawn in through openings 58; or the high speed of rotation of the severing wheel may provide the necessary air current.  The severed thread end 37, Fig. 2, falls on to the lower reel, as at 38, and is wound up on the latter and drawn tight, as at 39.  The thread is wound and axially displaced, and treated with liquid, on the reel 2, and transferred to the reel 3 as before.  One motor may drive all the transfer mechanisms and may be turned on and off as required, or it may be left running continuously, or the action of pulling a thread from the spinning bath to the first reel may actuate the transfer device through a photo-electric cell, the device being stopped after a predetermined interval by a time-limit relay.