a yarn storing , feeding and measuring device , particularly for jet looms , has a stationary drum onto which an intermediate yarn store is wound by a winding - on device and from which the yarn is withdrawn , yarn sensing means detecting the withdrawal of the yarn from the drum by generating pulse signals indicating that the yarn passes a detection area of the yarn sensing means , a plurality of yarn stopping devices arranged at angular intervals around the storage drum and a control device adjustable to desired yarn lengths to be withdrawn , said control device being responsive to said pulse signals such that an actuating signal is transmitted to a selected yarn stopping device whose angular position corresponds to the position of the yarn when said desired yarn length has been withdrawn . the yarn sensing means consists of yarn sensors , the number thereof being lower than and independent from the number of yarn stopping devices , and said control device comprises storing means for storing information regarding the yarn stopping device actuated at the end of the previous yarn withdrawal cycle and calculating means for determining one yarn stopping device to be actuated next among the plurality of yarn stopping devices on the basis of input information for the calculating means representing said desired yarn length and on the basis of said stored information .