Patent ID: 7475709

Claim:
A yarn feeding device for a weaving machine including at least one winding element being rotatably driven in relation to a stationary, substantially drum-shaped support for forming a tubular yarn winding package comprising adjacently lying windings of substantially equal form, the yarn winding package being conveyed forwards in a withdrawal direction on the support, and a mechanical weft yarn length measuring assembly having at least one stop element for co-operation with the support, the stop element being adjustable between an engagement position with an engagement from an outer side into the support and a retracted release position, wherein the stop element is movable in the withdrawal direction relative to the support, wherein a power drive is provided for moving the stop element opposite to the withdrawal direction into a predetermined home position close to the winding element, and wherein the stop element in its engagement position is movable from an end position in the withdrawal direction to a predetermined stop position exclusively by the growing yarn winding package.