Abstract: A strand break-out device for preventing the formation of the fault yarns due to strand breakage when two unspun fibrous strands are spun on a common twisting spindle. A member (24) has pins (38) forming a passage means to which the strands converge during travel to the spindle and on which the strands may bear to apply force to the member. The member is pivotally mounted on a support (28) so that it may move freely on the support between limits of displacement from a mean, stable disposition. If a strand breaks the force applied by the remaining strand moves the member beyond the respective limit whereupon the member moves to a further position wherein the pins distort the path that the remaining strand would otherwise take. This distortion is such as to cause the remaining strand to break.