Abstract: A tool exchanger for programmed machine tools includes a device for the conveyance of selected tools between a tool room and a main spindle of the machine tool and with two grip devices moving along a prescribed rotation angle and arranged in a carrier support mounted to the conveyance device and able to rotate between an alternate position and at least one standby position. In order to achieve faster exchange operations of the tools in a horizontal and vertical machining spindle, the drives to open and close both tool grips are activated at the same time. The support mounted includes a locking device which blocks the tool grip to standby position in its closed condition.

Abstract: A device for feeding a liquid thread-treating medium to the thread in a double thread twisting machine has a wiping head of a wear-resistant material arranged in a housing and extending from below into an annular recess of the overflow plate and into the thread running plane. The wiping head has an opening in the top thereof which extends substantially parallel to the spindle axis and has an insert in the opening which induces a capillary action that transports the thread-treating medium from a supply pipeline to the upper port of the opening. The insert is a pin made of a rigid material and of noncylindrical cross section so that between the outer surface of the pin and the inner surface of the opening small gaps are formed which produce the capillary action.

Abstract: In an apparatus for producing effect yarn, at least one pair of feed rollers is provided for supplying a yarn component creating the effect, this pair of rollers consisting of a driven feed roller and a pressure roller forced against it. Moreover, the apparatus has at least one supply arrangement for a foundation thread, a hollow spindle carrying a bobbin of binding thread and having a twist limiter, and a pair of draw-off rolls. A deflecting pin extending substantially parallel to the axes of the rollers is provided at the exit of the pair of feed rollers in the wedge formed between the two rollers. This deflecting pin serves to guide the foundation thread which is led past the pair of feed rollers on the outside. This deflecting pin is arranged substantially in the plane of thread movement passing through the line of contact of the two rollers and through the yarn components combined and false-twisted downstream of the line of contact.

Abstract: A service carriage for use with a spinning, twisting or winding frame which has a plurality of equally spaced spindles and a plurality of equally spaced work stations thereon. A compressed air system on the carriage is supplied with compressed air from a source of compressed air via a compressed air duct. The compressed air duct is fixedly arranged at each side of the frame and extends in the longitudinal direction of the frame and is connected to the compressed air source. The air duct has a plurality of automatically closing button-actuated valves which are connected in circuit therewith. Each of the valves has a closure member associated therewith. The spacing between the valves corresponds to a whole integer multiple of the spindle spacing. A plurality of coupling heads are arranged one behind the other in the direction of movement of the carriage and are mounted on a common slide member.

Abstract: A threading device for double twist thread twisting frames which have a spindle and a suction device movable toward a storage disc on the frame. A service carriage is movably mounted on the frame along one side thereof. A threading head is movably mounted on the service carriage and is movable between a rest position remote from the spindle and a threading position in which it is in registry with the upper end of the spindle. The threading head has on its side facing the spindle axis an inlet slot that extends parallel to the spindle axis. A thread channel is provided adjacent the bottom of the inlet slot and, in the threading position of the threading head, is in registry with the spindle axis. At least two holder elements are mounted on the frame and are spaced one above the other and substantially in the plane of movements of the inlet slot on the threading head.