Abstract: A thread gripper comprising at least two frictionally coacting clamping surfaces for engaging and holding threads at a textile machine, such as a warp-tying machine and the like, wherein the thread gripper performs predetermined movements. Means serve to alter the intensity of the frictional force applied by the clamping surfaces in a predetermined manner as a function of the path through which the thread gripper moves.

Abstract: An apparatus for dividing warps by means of leases, which is of the type having divider elements for the momentary edge warp end or thread and a feeder for the divided or separated threads for feeding such threads to tying elements. The divider elements separate the edge warp thread from the warp sheet in that the divider or separator elements, together with lease cords defining the lease following the separation of a thread, change their position relative to the warp sheet in such a manner that all threads following the edge warp thread are displaced away therefrom and the feeder only then moves through the complete path needed for the infeed of the separated thread to the tying elements when in fact a thread has been separated. Means ensure that the divider elements only then change their position relative to the warp sheet when the feeder has moved theough its complete path.

Abstract: An apparatus for dividing warp threads or ends by means of leases, comprising a first divider element or first divider means for separating a momentary edge thread from a sheet of warp threads or warp. The first divider element in conjunction with lease means, for instance constituted by lease cords, after separating a thread, changing its position relative to the sheet of warp threads in such a manner that all warp threads following the edge warp thread are displaced away therefrom. There is provided a second divider or separator element which is only capable of engaging a thread separated by the first divider element, possibly even a thread of a thread pair separated by the first divider element. The first divider element changes its position in a predetermined manner relative to the sheet of warp threads in dependency upon a programming device containing a program carrier.