Abstract: The present disclosure relates to the method for spinning of polymer matrix in an electrostatic field induced in a spinning space between a spinning electrode and a collecting electrode, at which the polymer matrix is delivered from a matrix reservoir into the electrostatic field on surface of the spinning electrode or by the spinning elements of the spinning electrode, whose principle consist in that the temperature of the spinning electrode or spinning elements of the spinning electrode, and/or reservoir, and/or of polymer matrix is increased above the surrounding temperature by means of resistance heating. The disclosure further relates to the device for performing of this method.

Abstract: The principle of the present disclosure is the device for production of nanofibres through electrostatic spinning of polymer matrix in a spinning space, in which against each other there is positioned a collecting electrode and a spinning electrode, between which an electric field of high intensity is induced. Next to this, in the spinning space there is arranged at least one electrical device which is coupled with winding of a transformer (8, 11), which is insulated for high voltage, while the second winding of transformer (8, 11) is connected to the device for generating and/or evaluating of electric voltage pulses positioned outside the spinning space.

Abstract: The present invention relates to a method of and apparatus for inserting weft yarn in jet looms, in which the weft yarn is inserted by the action of an inserting fluid jet and entraining fluid jets. The weft yarn is projected by the inserting fluid jet into the carrying jet field made up of at least two opposite systems of entraining fluid jets disposed close to and in front of the reed of the loom; the weft yarn is discontinually supported inside the carrying jet field, and the carrying jet field is simultaneously stabilized by withdrawing a part of the fluid from the boundary layer of the jet field.

Abstract: An apparatus for inserting two weft threads into two warp sheds in a loom with central jet insertion. Intermediate inlet ducts and pairs of opposite outlet ducts and pairs of opposite outlet ducts and pairs of nozzles, respectively, communicate with said respective inlet ducts. Air points are provided to change the directions of advance of weft threads and input air streams, said air points having tipping nozzles which can be alternately opened and whose discharge directions of tipping air jets are mutually crosswise directed into said pairs of opposite outlet ducts.

Abstract: An arrangement for the selective insertion of two weft yarns into two sheds of a jet loom with weft change. Each weft yarn is assigned a fixed jet provided with outlets into both sheds, and connected to two pressure air supplies, opened alternatingly according to a predetermined program. A plurality of such arrangements can be employed in combination with the said two sheds, the arrangements can be programmed to interact in a number of predetermined manners to produce a variety of fabric patterns.

Abstract: Apparatus for the programmed change of position of one or more members, particularly of the nozzles of jet looms. The disadvantages of similar prior devices are mitigated by the arrangement of the device according to the invention in which a driving cam is provided with an auxiliary cam path for the cam following pin of a combined cam follower element, said pin being mounted axially displaceably on the carrier of the combined cam follower element and being urged toward the cam by a spring. One of the ends of said pin is controlled by the auxiliary cam path, while in the vicinity of the other end there is mounted a controlled arresting mechanism. The driving cam can be made in the form of a box or a globoidal cam. In the embodiment employing a globoidal cam, the pin of the combined cam follower element has its opposite ends of similar construction, while the combined cam follower element includes further auxiliary guiding pins which are arranged crosswise with respect to the pin of the cam follower.

Abstract: Variable displacement cam driven piston pump having means for the stepless adjustment of the length of the pump stroke. The stroke adjusting means has pivotally mounted spaced parallel levers, the levers being interposed between the cam and the piston of the pump, the levers being mutually coupled in their movement by a means adjustably arranged along the length of said levers, said levers being disposed on the opposite sides of a plane defined by the contact points between the lever coupling means and the levers.