Abstract: Method of preparing a weft and its removal from an open shed in jet weaving machines automates the preparatory operation of weft upon finding a weaving fault. This is achieved by performing both the preparation and the withdrawal of the weft in the course of the first quadrant of the jet weaving machine revolution. The method includes the step of supplying a further unseparated weft length, forming a loop between the unseparated weft length in the open shed while the loop elongates due to the action of an inserting medium until the loop face emerges from the shed on the shed outlet side and removing the weft from the shed by a weft withdrawing device.

Abstract: A method of and an apparatus for selectively releasing a predetermined length of weft thread in shuttleless looms, wherein a separating wheel provided with a control on the periphery thereof, having unequal heights or angular spacings, displaces a winding of weft thread, having an insertion length and wound in a space between two controls, in the direction of withdrawal of the weft thread, along a supply drum comprised of segments and always releases at least one complete insertion length of weft thread into the warp shed at a time period determined by a weft thread releasing program.

Abstract: Weft inserting device adapted to be fixed on the frame of a jet loom or to the beat-up motion thereof. The device has two mixing tubes which are united at the location of their outlet ends so as to form a single central outlet portion terminating in a single outlet opening, the outlet opening being followed by a directing portion with an open passage through. In the weft inserting device of the invention, the central outlet portion of the weft inserting device, starting from the discharge ends of the mixing tubes, is divided by means of a baffle disposed in a first plane which is perpendicular to a second plane containing the longitudinal axes of the mixing tubes, the baffle extending from the discharge point of the mixing tubes throughout at least a portion of the length of the central outlet portion. The longitudinal axis of the baffle lies in a plane which contains the axis of the directing portion of a weft inserting device.

Abstract: Clutch mechanism, particularly for looms. The mechanism has a housing, in which a pair of opposed electromagnets are stationarily mounted, between which there is arranged a friction disc mounted axially displaceably on a driven shaft. A rotor, fixedly connected to a control shaft disposed coaxially of the driven shaft, is disposed between one electromagnet and the friction disc for selective driving engagement therewith.

Abstract: A loom having a means for automatically unweaving the weft upon the occurrence of a weaving fault, thereby reducing the labor needed to overcome such weaving fault and thus increasing the efficiency of the loom. The apparatus includes a device for the selective prevention of the weft from entering the shed of the loom, said device being mounted on the loom between the weft supply and the weft-entering end of the shed. The invention may be applied to looms wherein measured lengths of weft are inserted mechanically into the shed, or to jet looms, wherein measured lengths of weft are inserted by jets of inserting fluid such as air or water into the shed of the loom.

Abstract: The present invention relates to printing machines with paper reversers.The purpose of the invention is to mitigate the necessity of adjusting or checking the correct position of paper in the paper reverser.The above purpose is achieved by the present invention where a paper feeding scanner, together with a scanner for checking the angle of displacement of the machine cylinders are connected, via a first coincidence gate, to the input of a first memory. The output of the first memory is connected to the serial input of a first shift register. To the clock pulse input of the first shift register is connected a pulse scanner for scanning pulses which are synchronous with the revolutions of the printing machine parts upstream of the paper reverser. To the first used storage location of the first shift register is connected a first circuit for engaging printing sets under pressure.