Ring spinning frame with drawing mechanism stop motion

Ring spinning machine comprising a drawing frame having, at a given location therein, a draw-up roll for drawing therethrough in a given direction a roving being spun in a thread, and a roving-clamping device responsive to a break in the thread for clamping the roving, said roving-clamping device being controllably deflectable to move the roving transversely to said given drawing direction in vicinity of said given location, said roving-clamping device being latchable in made-ready position thereof, having an unlatching device responsive to a thread break and comprising a two-part clamp including a lower clamping member spring-biased into made-ready position thereof and an upper clamping member held by said unlatching device in made-ready position against a spring-biasing force, said upper clamping member, after unlatching of said roving-clamping device, pressing the roving against said lower clamping member and deflecting both the roving and said lower clamping member transversely to said given drawing direction, and including stop means for limiting the deflection of the roving and said lower clamping member.