bearing 20 the bracket 18 and the device supported thereon can be swung away from knitting zone 22 pivoting about the bearing 20 the bearing has two indentations 24 26 designed to receive a spring loaded locating plunger 28 to lock the device in the operative position as shown or in the swung back position the inner toothed member 14 has an operating peg 30 received in a slot 32 in an operating lever 34 pivotally mounted at 36 the lever 34 is connected through a series of levers whose exact disposition depends on the model of fully fashioned knitting machine to which the device is attached to a solenoid 38 when the solenoid is operated the operating lever 34 is pivoted to the right as seen in fig1 through the chain of levers thus displacing the inner toothed member 14 relative to the outer member 12 against the bias of the spring 16 until the teeth are aligned clearing yarn receiving openings 40 on deactivating the solenoid 38 the toothed members are biased back trapping any yarns in the openings between adjacent teeth on the inner and outer members the device operates as follows the guide block 42 which corresponds to either of the guide blocks 26 28 in ser no 700 053 carries warp yarns 44 to the knitting zone 22 where they are plated into the weft knit base fabric producing patterns according to the setting of the.