brake actuator 30 according to the preferred embodiment of the present invention is best illustrated in fig2 there the actuator 30 is shown engaging and operating a spindle brake operator 16 once a yarn break or other situation occurs which requires the attendant to engage one of the spindle brakes the attendant obtains the portable device and positions it with the first surface 33 directed toward the spindle brake operator 16 the spindle brake operator 16 is then engaged by the projecting edge 56 of the actuating member 54 and the magnets 48 50 are drawn to the metal of the textile machine frame 18 which causes the spindle brake operator 16 to pivot into operation thus engaging the spindle brake and halting rotation of the spindle the magnets 48 50 retain the portable spindle brake actuator against the textile machine frame 18 and maintain the braking action until the condition is relieved by an attendant by the present invention the spindle brakes on a textile spinning machine may be individually stopped and remain in a stopped condition indefinitely further by using multiple actuators according to the present invention several spindles may be stopped at once without placing the attendant under dangerous conditions it will therefore be readily understood by those persons skilled in the art that the.