Abstract: A shuttle-drive arrangement for a weaving loom comprises at least one drive rotor (1) having a helical driving means (5) arranged to co-act with a shuttle-dogging device (23) for driving a shuttle (14) across the loom. The rotor (1) is arranged to be continuously rotated by a drive source (7). And means (8,9,10) are arranged to indicate the rotary position of the rotor and the driving means. When the driving means is located in a given position for driving the shuttle, a coupling mechanism (20,24,23) is arranged to be activated to an operative state for coupling the dogging device (23) to the driving means (5).