Abstract: A control apparatus for the electromagnetic brake of a brake device or unit of a weaving machine or loom comprises a cam-controlled brake-pulse transmitter rotating with the machine shaft and two continuous signal switching stages which act upon two parallel connected AND-gates or circuits, each having connected thereafter an adjustable or regulatable time-delay element. The latter jointly cooperate with an OR-gate or circuit which delivers a related stop signal to the brake device or unit. In this way it is possible to achieve a simple, precise and reliable regulation of the angular position of the crank, so that the regulatable time-delay between the output pulse of the AND-gate and the output pulse of the time-delay element constitutes a measure for the corresponding angular position of the crank.

Abstract: A device for holding the weft yarn outside of a pair of takeoff rolls after there has been a filling break or upon starting up of the loom. The takeoff rolls in normal operation withdraw a measured length of yarn from a supply package and feed the yarn to a storage device such as a suction tube. The rapier on its filling stroke withdraws the measured length of yarn from the storage tube on each stroke of filling insertion. As the rapier approaches the end of the stroke, the takeoff rolls 4 and 5 separate so that the final portion of the yarn of each filling is taken directly from the supply package. After a filling break or upon starting up of the loom, in order to insure that the length of the first weft yarn is proper, a movable guide arm 14 holds the yarn outside of the takeoff rolls 4 and 5 and the yarn is manually withdrawn from the supply package. At the end of the first stroke of the rapier the rolls 4 and 5 are separated.