Abstract: An embroidering machine includes a machine stand with a substantially U-shaped cross-section that is open at the top, and has at least two substantially vertical U-shaped frames (16) that are open at the top and are connected by longitudinal supports (3, 3a) and form a channel (14) that runs in the longitudinal direction of the machine and is open at least at the side ends. Shafts of a fabric stretching frame (10) are positioned in movable fashion in this channel. A further U-shaped frame, open at the bottom, may be arranged on top of the vertical U-shaped frames that are open at the top to form a substantially rectangular frame.

Abstract: A cutting apparatus for embroidery machines that facilitates the positive cutting of the threads at the end of each embroidery operation. Large-scale embroidery machines may provide several hundred embroidery positions, and each position is provided with an individually-actuable cutting and gripping device. These individual cutting mechanisms are in turn collectively mounted on one or more feeder bars that permit the pivotal movement of the cutter/grippers into and away from a position in close proximity to the embroidery needle stitch points. This pivotal movement permits the close cutting of the thread when required, yet otherwise locates the thread cutter/grippers at a position away from the stitch points during the embroidery operation itself.

Abstract: The described sewing machine has a work supporting bed (5) divided into two portions (6, 7) separated from each other by a central slot (8). The parts (2, 3) of a workpiece (M) to be assembled are laid down each on one portion (2, 3) of the work supporting bed (5) and are moved close to each other so that the respective junction edges (G) may mutually match after being vertically folded downwardly within the slot (8). The junction edges (G) thus oriented engage between a needle plate (9) and a presser foot (25) disposed according to vertical planes, for being submitted to the action of feeding and sewing means operating under the work supporting bed.

Abstract: The invention pertains to an embroidery machine with a plurality of embroidery stations provided with corresponding embroidery tools which are attached to shafts that oscillate during the operation of the machine and extend along the embroidery machine. The shafts are actuated via corresponding drives. To reduce the torsion as well as the torsional oscillation of long shafts which leads to a distortion of the movement of the embroidery tools and to a chronological phase displacement between the front and the rear portion of the machine, the drives for the needles and for the other embroidery tools are arranged approximately in the center of the embroidery machine.

Abstract: A device for embroidery machines for attaching ribbons, braid, or the like on a fabric background has an axially displaceable rod-like needle carrier with a needle for embroidery thread. A material pressure foot is swivelable around the axis of a needle bar. A shuttle for receiving a shuttle thread is arranged behind the fabric background. The needle bar is received by a hollow shaft which is rotatable relative thereto. A front face of the hollow shaft includes radially extending grooves which are arranged diametrically with respect to each other. Webs extending into the radially extending grooves are provided at the rear side of an annular disk-shaped retainer for the material pressure foot. The needle of the needle bar extends into the retainer and is connected to a lifting mechanism of the material pressure foot. At least a front segment of the hollow shaft is received by a sleeve which is rotatable with respect to the hollow shaft.

Abstract: The embroidery machine encompasses a large number of embroidery locations equipped with displaceably guided embroidery needles for the embroidery threads. These embroidery threads partially wrap about adjacently situated, conjointly to-and-fro oscillating thread guides of a thread delivery device in order to respectively accomplish the thread advance and thread retraction. At the region of the thread guides there is arranged a thread guide and clamping device comprising adjacently mounted guide elements located in a row upon a machine-fixed holder rail. These guide elements correspond in number to the number of embroidery locations and are constructed for guiding the threads, for clamping of the threads and for the cutting of the threads.

Abstract: For the individual, group and/or repeat change of schiffli-shuttles in embroidering machines, the schiffli-shuttle embroidering stations are shifted from centralized to decentralized shuttle stroke and vice-versa. Rotating motion of the driving shafts is converted into reciprocating motion immediately before each individual shuttle. The reciprocating motion is transmitted to entrainment rods and drive rods. The entrainment rods are rotated according to the repeat configuration so that such drive and entrainment rods are disengaged. By actuating the drive and entrainment rods, the individual schiffli-shuttles each are engaged with and disengaged from the centralized shuttle stroke. The schiffli-thread is cut, the schiffli-shuttle is arrested and the upper slider is opened or closed for group change. The empty schiffli-shuttle is removed and a loaded schiffli-shuttle inserted.

Abstract: The sewing head comprises at least a cylindrical sector (2) mounted to rotate in a cradle (1) and exhibiting tubular housings inside each of which a tool holder bar (3) is guided.The tools of this sewing head can be coupled to the mechanism of an ordinary embroidery machine. It makes possible a simplification of the handlings required during the changing of embroidery patterns to be made and for the replacement of damaged tools.

Abstract: An apparatus for holding a plurality of needle bars of an embroidery machine which includes a support upon which the needle bars are reciprocably mounted; a moving block connected to each of the needle bars for advancement and retraction thereof and including a stopper extending therefrom at a right angle to a direction of movement of the moving block; a driving band connected to the moving block and which includes a locating plate; and a plurality of L-shaped operating levers corresponding to the needle bars, each of the levers including an inclined surface positioned at a front portion thereof and supported on the support so as to be freely rotatable and which includes a mechanism for fixing the needles in an idle position. A plurality of solenoids are also provided which have operation bars attached thereto and which are respectively rotated by the solenoids.

Abstract: The needle of an individual embroidery location of a multitude or row of linearly arranged embroidery locations in an embroidery machine is mounted at an axially displaceably guided needle carrier. According to a programmed control and by means of a related switching lever the needle can be individually coupled to or decoupled from an oscillating drive rail which is common to all the needles of the row. A thread guiding roller which is journaled for free rotation at a roller supporting lever and associated with a related one of the needles supplies a thread to the related needle. Simultaneously with the coupling or decoupling of the needle to the oscillating drive rail the roller supporting lever is pivoted between an operative position and an inoperative position in which the thread guiding roller is respectively coupled to or decoupled from a braking member which is common to all embroidery locations.

Abstract: At least one needle-bearing bar of a quilting machine is connected to a reciprocable shaft, a control device is operatively arranged selectively to engage and to disengage the needle-bearing bar from the shaft. The control device includes either two electromagnetic or a pneumatically operated cylinder. A timer can be provided to effect energization of the electromagnets or fluid delivery to and venting of the cylinder.

Abstract: In an embroidery machine, especially an area embroidery machine, the embroidering heads of embroidering stations, which are arranged one above the other, are adjustably mounted on basic guides which extend over the entire height of the embroidering field, in such a manner that the embroidering tools on the needle side and on the shuttle side of each embroidering station are movable synchronously to each other relative to the embroidery field, individually, in groups, or in their entirety. The basic guides on the needle side and on the shuttle side are movable relative to the embroidery field. The embroidering tools are mounted on the basic guides by interconnecting adjustment bars; the relative position of the adjustment bars in view of the basic guides is adjustable on the needle side and on the shuttle side.

Abstract: In necessary embroidery machine, especially in an area embroidery machine the combination of a yarn support stand together with feed yarn rolls for all needle yarns required for the operation of the machine which are arranged in a yarn group, a yarn storage and tensioning device for accommodating the needle yarns over the feed yarn rolls with the same yarn lengths and for tension free and continuous supply of the yarn ncessary for the operation of the machine while the embroidering mechanism is running, and a clamping arrangement, by means of which the stationary feed yarn rolls in the yarn support stand can be clamped and changed.

Abstract: The invention concerns an embroidery machine, especially a surface embroidery machine, with embroidery heads, which accommodate, on the needle side, embroidery station elements, such as embroidery needles, piercers, fabric pressers, yarn catchers, front yard knives, etc., which are associated with an embroidery station and which can be adjusted vertically and horizontally in any required manner over the vertical extent of the embroidery field.