Hermann Wangner-gmbh & Co. Kg

Novatech

Novatech Gmbh Siebe Und Technologie Fur Papier

Herman Wangner Gmbh & Co. Kg

Hans-Eugen Hacker

Klaus Esser

Edgar Hofstetter

Hartmut Waldvogel

Peter Defranceski

Fritz Bleher

Eckhard Kaminski

Eugen Kehrer

Rudi Hess-Bauer

A support for the reed of a seam-weaving machine for joining the ends of a flat-woven, paper-making fabric by means of a woven seam includes a reed having reed dents for the shifting of the auxiliary weft threads against the fell. The reed dents are pivotally mounted and press successively against the auxiliary weft thread to be shifted starting from the fabric end from which the auxiliary weft threads protrude as a warp fringe. In order that the reed dents are gradually shifted by the movement of the sley, the reed dents are staggerable in their position such that the points at which the reed dents touch the auxiliary weft thread to be shifted lie roughly on a straight or slightly curved line whose distance from the fell increases, starting from the point of emergence of the auxiliary weft thread from the fabric end.

Apparatus for staggering reed dents in a seam weaving machine

A seam-weaving machine for making a fabric endless by a woven seam is provided with a fringe catcher adjacent the edge zone of the woven seam. The fringe catcher, after a shed change, is moved forward beyond the fell by a drive device and upon return of the fringe catcher, draws an upwardly protruding fringe thread away to the rear above the already formed part of the woven seam.

Seam-weaving machine with fringe catcher

A plate for a separator for the successive seizure and separation of threads held in an array has a leading edge and at least one hook-shaped recess in the leading edge. The recess has a depth in the direction of plate movement which is greater than half the width of the recess. Between a hook tip and the leading edge there extends a fender edge at an angle of 15.degree. to 90.degree. relative to the direction of plate movement. The hook tip is rounded with a radius of up to 10% of the width of the hook-shaped recess.

Plate and separator containing such a plate for seizing and separating

A separator for successively seizing threads held in an array includes a frame, in which at least one plate is guided for seizing the threads. The frame is displaceable toward and away from the array. Each plate carries a piercing needle which pierces the thread for seizing it. Each plate can have two piercing needles disposed at a distance from one another and pointing towards one another.

Separator for seaming machines

A separator for successively seizing threads (14) held in an array (28) includes a frame (10) having a front face or recess gap (12) and in which two or more strap or bar needles (15, 16, 18) are slidably disposed side by side. Each needle is provided with a pair of facing hooks (20, 22; 24, 26) at opposite sides of a cutout in its forward edge for cooperatively seizing a single thread for separation when the needles are driven in opposite directions.

Mechanism for separating threads held in an array

The method produces a flat spiral link assembly from at least four synthetic resin monofilament helices wound winding to winding which are simultaneously supplied for meshing engagement. Before being meshed the helices are stretched to at least three times their length and are thermoset in stretched condition. The alternatingly right-hand and left-hand helices are caused to mesh in zipper fashion and are interlocked by pintle wires. In order to facilitate the insertion of the pintle wires the helices are extended by about five percent. The apparatus for performing the method comprises two feed rolls forming a first roll nip through which helices are passed to a heating chamber. Draw-off rolls withdraw the helices from the heating chamber at least at three times the peripheral speed of the feed rolls. The apparatus also comprises a shunt for joining the helices and a device for inserting the pintle wires.

Growing community of inventors

Reutlingen, Germany

Hans-Eugen Hacker