The invention relates to a supply device (F) comprising a thread measuring function for a loom, said device being provided with a stationary, narrow-diameter storage body (K), to which a first pin-type stop element (S1) is allocated. Said element can be displaced in an essentially radial and axial direction in relation to the axis (X) of the storage body in order to perform a thread measuring function and to stop the respective take-off of a section of thread. A second pin-type stop element (S2), which is displaced exclusively back and forth in an essentially radial direction relative to the axis (X), between an engagement position and a passive position, co-operates with the first stop element (S1) in order to initiate the corresponding thread take-off and to receive the wound thread that has been measured by the first stop element (S1). Both stop elements (S1, S2) lie adjacent to one another and are offset in the axial direction and/or in the peripheral direction of the storage body.