Abstract: The present invention relates to a device and a method for providing cut-to-length rovings having a defined length from an endless roving, in particular in the aviation and aerospace sector, and also to a machine with a device of this type. The device comprises a loop shape setting arrangement, a loop bracing arrangement and a cutting arrangement. An endless roving can be braced by means of the loop bracing arrangement onto the loop shape setting arrangement, thus forming a loop which can be cut to length by means of the cutting arrangement in order to produce the cut-to-length roving.

Abstract: The device has: a first interlacing jet (19); a feed path of the covering yarn (FT) and a feed path of the elastic yarn (F1; F2) towards the first interlacing jet; supporting elements (37A, 37B) for spools of elastic yarn (R1, R2); winding members (54) to wind the composite yarn (FC) on the cop being formed (BC); an interruption device to interrupt feed of composite yarn to the cop being formed and start winding the composite yarn on a new winding tube.

Abstract: The device comprises in combination: an interlacing jet for reciprocally joining the covering yarn and the elastic yarn; supporting elements for spools of elastic yarn; winding members for winding the composite yarn on a developing cop; a device for interrupting the feeding of composite yarn to the developing cop and starting the winding of the composite yarn on a new winding tube. The supporting elements for the spools of elastic yarn are suitable for arranging at least one first spool of elastic yarn in a working position and at least a second spool of elastic yarn in a standby position and for transferring the second spool from the standby position to the working position. Furthermore, a retaining member is arranged near the interlacing jet to withhold an initial free end of the elastic yarn of the second spool in standby position. Elements are also provided for introducing the elastic yarn of the second spool in the interlacing jet.

Abstract: A spinning plant having one or more roving frames and one or more ring-spinning machines coupled by a common transporter has bobbin/core transfer units equipped with a color sensor which ensures that color coded cores representing particular roving qualities are replaced by full bobbins of the respective quality and vice versa, thereby avoiding problems of feed of the incorrect roving quality to a spinning machine and the winding of roving incorrectly on a color-coded core.

Abstract: A handling system 1 for filament bobbins 4 or doffs 5 in a spinning mill, which has a spinning area 2 and a storage area 12. The handling system 1 has a transport device 16, a separating device 17 and a transfer station 11. The transport device 6 and the transfer station 11 have multi-column supports 7 for a plurality of doffs 5. The transfer station 11 is arranged between the transport device 6 and the separating device 17 and is located at the edge of or outside the spinning area 2. The separating device 17 is arranged in or at the storage area 12. As a result, the separation of the filament bobbins 4 is performed outside the spinning area 2.

Abstract: A method and a device for winding a spun yarn body from an inside wall of a spinning centrifuge of a pot spinning machine onto a tube (10) introduced for such purpose into the spinning centrifuge. The yarn extending between a yarn guide tube (6) and the inside wall of the spinning centrifuge is caught by lowering the tube past the mouth of the yarn guide tube and the winding process initiated. A remnant of spinning yarn is created thereby between the draw frame and the tube foot. In order to avoid disturbances due to the free end of this remnant of spinning yarn, the remnant of spinning yarn is separated from the yarn body and the tube and subsequently removed by suction.

Abstract: A method and a device for initiating the rewinding process after a yarn break in single stage pot spinning. In the process, a yarn detaching device (14) is introduced into a spinning centrifuge (3) rotating a high rpm, and places a cutting edge (16, 48) against the conically wound portion (32) of a spinning cake (15) deposited on the inner wall (26) of the spinning centrifuge (3). The yarn detaching device (14) has a yarn guide device, whose yarn guide contour (17, 43) covers the cutting edge (16, 48) of the yarn detaching device (14) such that in the course of the initiation of the rewinding process lower winding layers of the conically wound portion (32) are lifted on the rewinding tube (9) and in this way dependably prevents the winding of yarn around the yarn detaching device (14) during the rewinding process.

Abstract: The roving slubbing at the conclusion of winding of a roving bobbin in a flyer type machine is passed in a descending spiral around the cylindrical body bobbin and then onto the lower winding cone, after it is looped in an overwinding onto the winding tube below the lower winding cone. The winding then passes in a spiral upwardly and is formed into a short spiral segment which is drawn out by a traction on the roving so that the latter will break along the cylindrical body. The bobbin is stable and can easily be handled and transported directly and there is a reduced possibility for the slubbing to come loose, although it remains available to be pulled downwardly at the ring-spinning machine.

Abstract: A process for bobbin replacement on a flyer frame provided with a drafting frame, flyers, spindles and a bobbin rail, in which, while the flyer frame is running, a sliver end for each sliver supplied by the drafting frame is placed upon an empty bobbin sleeve. Initially only the flyers and the spindles of the flyer are driven. The flyers and the spindles are either immediately advanced in a forward direction or are initially driven backwards and after the lapse of a predetermined time period, brought to standstill and then driven forwardly, whereby the standstill of the flyers and the spindles coincide in time or are offset in time. After the start of the forward drive of the flyers and the spindles, the time-delayed drafting frame is set into operation.

Abstract: A horizontal transporter at a roving frame level delivers full bobbins to a vertical movable carriage which picks up the bobbins from the bottom, replaces them with core sleeves, and lodges the bobbins in a second horizontal transporter at another story for the ring spinning units. The bobbin and core sleeves are always engaged from above by the horizontal transporters and remain erect when engaged from below by the vertical transporter.

Abstract: A roving frame has a flyer region into which the suspension carriage trains are moved past a device for monitoring the presence or absence of cores or bobbins on the hangers. An error signal is transmitted in the case of an error and correction is effected when the suspension carriage train is in the flyer region. The suspension carriage train is then moved back past the sensors and either on this backward movement or the next forward movement, the functional correctness or poor mounting is again measured. Correction is effected in each case in the flyer region where the hangers are more readily accessible.

Abstract: Roving bobbins of a weight of about 5 kg, by contrast to standard bobbins with weights up to 3 kg, can be used in a spinning system in which the flyer frames are of the multi-axial drive type and are equipped with an automatic bobbin change mechanism which transfers the full bobbins to suspension carriage trains displaced thereby to ring-spinning machines and wherein the suspension carriage trains pass into the creels of the ring-spinning frames directly or are transferred from such suspension carriage trains to the creels.

Abstract: In order to quickly exchange empty sleeves (18) for full bobbins (6)in a roving frame, guiding rails (14, 21, 22) are mounted along at least one row of flyers (4). A suspended carriage train (15) with hangers (16) can be driven on the guiding rails (14, 21, 22). By lifting and lowering the bobbin rail (5), the bobbins (6) can be transferred from the bobbin rail (5) to the hangers (16) of the suspended carriage train (15) and sleeves (18) can be moved from the hangers to the bobbin rail. The bobbin rail (5) and/or the guiding rails (14, 21, 22) can be moved back and forth. Fixed guiding rails (14) can rest on the bottom side of the flyer rail (3), and movable guiding rails (21, 22) are arranged in the area below the flyers (4). Such guiding rails may be designed to slide or swivel.

Abstract: A bobbin changing apparatus for a flyer frame which allows works to freely be performed by attendants at a front side of the flyer frame at any time during the operation of the flyer frame, while eliminating need for providing independent rails for transporting full bobbins and empty bobbins, respectively. Disposed at a front side of a flyer frame (2) is a work platform (35) on which the number of pegs (49) which is twice as large as that of bobbin wheels are mounted with a pitch equal to a half of that of the bobbin wheels (4). Each of the pegs (49) can selectively be disposed at an operative position on a top surface of a cover plate (41) and to a retracted position retracted from the top surface. Further, the pegs can be driven reciprocatively over a distance corresponding to one pitch of the peg array.

Abstract: A bobbin transporting system are overhead transporting rail for the flyer frames and an overhead transporting rail for spinning machines are disposed independent of each other. The bobbin transporting carrier running on the transporting rail for the flyer frames suspends the bobbin hangers at a pitch equal to that of bobbin wheels of the flyer frame arrayed in one of two rows in which the bobbin wheels are disposed in a zigzag pattern. The bobbin transporting carrier running on the transporting rail for the spinning frames suspends bobbin hangers at a pitch equal to that of reserve roving bobbins disposed at both sides of a spinning machine. A bobbin exchanging apparatus is disposed at a location where both the transporting rails extend in parallel and close to each other. In the bobbin exchanging apparatus, bobbins suspended at different pitches from the respective bobbin transporting carriers travelling on the transporting rails in opposite directions, respectively, are exchanged.

Abstract: A roving frame in which short trains of hangers are introduced transversely into two flyers of rows for replacement of full bobbins by empty core sleeves.

Abstract: A roving frame having a suspension carriage track extending through the flyers thereof has a parking rail which can accommodate the full length of the suspension carriage train which removes the full bobbins from the flyer row and on the parking rail, by cooperation with a stationary bobbin/sleeve exchanger or one movable along the parking track, can transfer the full bobbins to a transport track and mount empty core sleeves on the suspension carriage train.

Abstract: A roving frame has operating elements which engage rods mounted on a shank of each flyer of a flyer rail transversely to the pivot axis of the rod which is offset from the rod. The pressing fingers are swingable about this axis and can be urged outwardly to clear the bobbins and thus allow bobbin replacement.

Abstract: A method for rewinding a spinning cake from a spinning pot of a pot spinning apparatus onto a rewinding body, preferably onto a tube as a yarn carrier, includes drawing a sliver to be spun in a drafting configuration, guiding the sliver in a pneumatic piecing aid, and depositing the sliver with a traversing yarn guide onto an inner wall surface of the rotating spinning pot as the spinning cake, while maintaining a requisite rotation for formation of a yarn. A yarn guide is moved toward the middle of the spinning cake in a last stroke being shorter than a next-to-last stroke of the yarn guide toward the middle of the spinning cake, once a predetermined size of the spinning cake is reached, before initiating rewinding of the spinning cake onto the rewinding body. A delivery of the sliver from the drafting configuration is stopped once a reversing point of the stroke is reached. The rewinding body is introduced into the spinning pot and the yarn is transferred onto the rewinding body.

Abstract: A process for breaking yarn during the automatic removal of bobbins from banks of spindles, permitting the operator to grip the end of the yarn at the base of the bobbin (1) and guaranteeing good retention of the yarn during handling of the bobbin (1), thereby avoiding premature unwinding. There is also provided a presser finger for practicing this process, comprising a blade (5) having upper and lower heels (6 and 7) respectively upwardly and downwardly inclined from the plane of the blade. The process comprises, at the end of winding, stopping winding at the lower portion of the bobbin (1), then forming a lower winding of several turns about the base of the bobbin (1) and specifically about the core of the bobbin, then rising and effecting a limited upper winding followed by a descent and breaking of the yarn below the upper portion of the bobbin (1). Specifically, the upper winding is of about one-half turn about the core above the yarn wound on the bobbin.

Abstract: In a flyer frame, when the flyers are oriented transverse to the plane of their axes, segments of a track are linearly or angularly inserted through the spaces between the flyer arms to guide the trolleys of the carriages suspended from the resulting track adapted to take up the full bobbins and deliver the empty bobbin cores.

Abstract: For the simplest possible alterations and only a minimal structure change in a roving frame, on a roving frame one, full bobbins and empty sleeves are transversed to and from a suspension carriage train guided through the flyers on a guide path formed by the flyers into the change position. For this purpose under the heads of the flyers and/or under the flyer bank of the roving frame guide bodies are arranged to provide a guide path for the suspension carriage train along the longitudinal axis of the roving frame in especially transverse positions of the flyers.

Abstract: A method and an apparatus for doffing yarn packages from and supplying empty bobbins to a textile machine with a vertically movable bobbin rail with a bobbin bearing, a flyer inverted U-shaped revolving device and spindle with a spindle holding mechanism, a revolving, storage system with a storage hoist, which can be controlled by the textile machine and is above the spindle holding mechanism. Below the storage hoist, a bobbin creel is provided with mandrels for accommodating or transferring full packages or empty bobbins. The bobbin creel can be moved vertically up to the bobbin rail and can be pushed into the textile machine between the spindle and the bobbin rail. Within the bobbin rail a switching mechanism corresponds to the spindle holding mechanism. The spindle holding mechanism is, disposed within the spindle and is comprised of a latch. A switching element, corresponding to the latch is disposed within the spindle holding mechanism.

Abstract: After forming a package on a spindle from a roving fed to the spindle through a rotatable flyer finger, feed of the roving is stopped to arrest the flyer in a position with the finger anywhere on the package underneath the upper end of the last layer of turns formed on the package. The package is then lowered until the finger is above the upper end of the last layer of the turns formed on the package while the package is rotated in a reverse direction opposite to the forward direction without feeding more roving to the package. The package is rotated in the forward direction through at least one half revolution about the axis without feeding more roving to the package so as to form at least a partial loop of the roving around the package above the upper end of the last layer of the turns and then more roving is fed to the package while same is lowered until the finger is below the upper end of the last layer of the turns. Finally the package is raised to sever the roving upstream of the package.

Abstract: A roving frame apparatus and method for winding roving upon bobbins (A) and doffing full packages directly upon a conveyor (F) wherein a spindle rail (C) is moved laterally beneath an overhead conveyor removing full packages therefrom and supplying empty bobbins thereto.

Abstract: Process and apparatus for the automatic removal of bobbins from a bank of spindles. A transporting fork has a plurality of recesses for simultaneously handling a plurality of spindles. The transporting fork is movable in a vertical direction and in at least one horizontal direction parallel to a bank of spindles on a spindle carrying carriage. A cup is insertable over each spindle for the support and manipulation of bobbins. A conveyor evacuates full bobbins and supplies empty bobbins. The fork releasably retains a cup in each recess whereby each cup can be penetrated by and disengaged from the fork upon movement of the fork in a horizontal direction.

Abstract: A textile machine has a bank of spindles each provided with a flyer having a presser finger and a fork having a plurality of elongated teeth thereon for simultaneously removing full bobbins from the spindles and for supplying empty bobbins to the spindles. A safety device is provided for moving the presser fingers out of the paths of the empty bobbins as the empty bobbins are inserted into the flyers, comprising deformable elements extending longitudinally of the teeth of the fork. The presser fingers have members thereon so positioned as to be engaged by the deformable elements and to swing the presser fingers out of the paths of the empty bobbins when the empty bobbins are inserted into the flyers by movement of the fork in one direction.

Abstract: A drawing machine having a drawing zone (8) for drawing slivers (2), and a plurality of flyers (14) for winding the slivers on to bobbins (16), is made compact by arranging the flyers substantially longitudinally of the paths of the slivers through the drawing zone, e.g. in echelon formation with respect to the sliver paths.

Abstract: The doffing time of a flyer can be considerably shortened when a carrier carrying empty bobbins is brought in a single sequence of movements, without interim or intermediate storing, from a substantially vertical transport-starting position into a predetermined inclined position and thus into alignment with an inclined bobbin rail. The full bobbins are accordingly conveyed in analogous manner.

Abstract: The apparatus comprises an endless upward and downward displaceable conveyor belt mounted on a horizontal frame and supporting a plurality of evenly spaced gripping devices, the apparatus further including a bobbin bearing carriage which can be longitudinally displaced so as to be alternatively arranged near the flyer bearing frame and near the conveyor belt.

Abstract: The spinning device comprises a vertically displaceable spindle bearing plate (2) carrying a rotatable spindle (1), and a cap-shaped thread guide member (6) rotatable about the spindle axis. The bobbin changer has a supporting element (11) and a bobbin holder element (10) which are movable transversely to the spindle axis. An extension (9) is releasably mounted on the top end of the spindle (1) and/or of a bobbin tube (8) placed on the spindle. Once the bobbin tube (8) has been fully wound with yarn, a short yarn section is wound onto this extension (9), and then the spinning device is shut off. The spindle bearing plate (2) is lowered, and the supporting element (11) is moved toward the spindle axis in order to seize the extension (9). The spindle bearing plate (2) is lowered further, and the bobbin holder element (10) is moved toward the spindle axis, seizes the fully wound bobbin tube (8), and transfers the latter to a conveying means (14, 15).

Abstract: The apparatus comprises a first conveyor belt extending along the perimetrical sides of a removing frame with which a second conveyor belt, a removing carriage and an operating board cooperate, the second conveyor belt being mounted on a horizontal upwardly and downwardly displaceable frame and being able to supply empty tubes to the operating board and the formed bobbins taken up from the board to the first conveyor.

Abstract: A drawing machine having a drawing zone (8) for drawing silvers (2), and a plurality of flyers (14) for winding the silvers on to bobbins (16), is made compact by arranging the flyers substantially longitudinally of the paths of the silvers through the drawing zone, e.g. in echelon formation with respect to the silver paths.

Abstract: In a spinning machine of the type having plural spinning stations each including a drafting system, a bobbin spindle and a coaxial funnel, the automatic exchange of empty bobbin tubes for fully wound bobbin tubes on the spindles is accomplished by interrupting the spinning operation without yarn breakage or severing, separating the spindles and funnels axially and radially from one another, removing the fully wound bobbin tubes and placing empty bobbin tubes on the spindles, engaging the still unbroken yarns with the empty bobbin tubes, then severing the yarns between the removed fully wound bobbin tubes and the replacement empty tubes, and repositioning the funnels and spindles and resuming spinning operation.

Abstract: A yarn kind changing process for a spinning winder which comprises the steps of stopping winding of a bobbin being wound on a spinning spindle after a yarn kind changing instruction, cutting a sliver which extends between a draft part of a spinnig frame and a yarn supply station and joining a supply side sliver of a different kind to the sliver remaining on the draft part, starting the spindle again to wind yarn of the new kind on a layer of the yarn of the preceding kind on a winding bobbin, and removing the yarn of the new kind wound on the yarn of the preceding kind before the fully wound bobbin doffed from the spindle is subsequently supplied to a winder.

Abstract: An apparatus for transporting roving bobbins (Y) along a transportation rail (5) arranged between a spinning process (3) and a roving process (1), comprising bobbin carriages (11), each having a plurality of bobbin hangers (13) for suspendingly holding roving bobbins (Y) and movably supported by the transportation rail (5); a driving device (18) for intermittently displacing the bobbin carriage (11); and a roving stripper (35) arranged midway of the transportation rail (5) for clearing off a residual roving on the roving bobbin (Y) during the transportation of the carriage (11).

Abstract: An apparatus for automatic exchange of at least one full bobbin with at least one empty bobbin in a flyer, i.e. a flyer doffer, comprises a transport device reaching the flyer acting to transport the full bobbins and the empty bobbins, a doffing region and a mounting region which reach the spindles of the flyer for groupwise exchange of the full bobbins with the empty bobbins on the spindles and a lifting region reaching the transport device for groupwise exchange of the full with empty roving bobbins on the transport device. The doffing region and the mounting region on one hand and the lifting region on the other hand are spatially separate from each other. An exchanging region extending to the doffing, mounting and lifting regions is provided. Advantageously the doffing region and the mounting region are combined in a single doffing and mounting region.

Abstract: The gripping device comprises at least one gripper which can be inserted into the tube and is formed from two elements which are mobile axially one in the other and are provided with frusto-conical ends which cooperate in such a manner that the axial movement of the inner element causes the outer element to expand and to engage under pressure with the tube for the purpose of its replacement. Two friction discs supported in an axially mobile manner are associated with the gripper and are subjected to the action of a spring in order to press a lower support element of the discs against the tube in order to retain it and allow exact keying of the tube on to the rotary drive element. The device is particularly suitable for cops.

Abstract: An apparatus for preventing an unwinding of a roving end from a full package roving bobbin during the transportation thereof. This apparatus is constructed in combination with the transportation mechanism formed in the known doffing mechanism or known overhead roving bobbin transportation system, in a condition such that a part of the constitutional mechanical elements of such known transportation mechanisms are utilized as a part of the constitutional mechanical elements of the apparatus according to the present invention. In the apparatus of the present invention, a pressing member is utilized for applying pressure against the peripheral face of the winding portion of each roving bobbin while this bobbin is rotating, and therefore the free end of the roving is firmly attached to the above-mentioned peripheral face of the roving bobbin. Consequently, any possible problems due to an unexpected unwinding of the roving can be effectively prevented.

Abstract: A doffing carriage is mobile at the level of the flyer support bed of a roving frame, and carries cop and empty tube gripping elements which are orientatable between a vertical position and an oblique position. A peg conveyor loaded with empty tubes in a reverse zig-zag arrangement to that of the cop rotators is disposed at the level of a footboard. The cops, lowered on to an orientatable cop carrier, are gripped by the gripping elements in an oblique position, raised, disposed vertically and deposited on to the free pegs of the conveyor, proceeding from one end of the roving frame to the other. After moving the conveyor through one step, the gripping elements deposit the empty tubes on to the cop rotators by proceeding in the reverse direction. The same carriage loads the empty tubes on to the conveyor and unloads the cops from it at one end of the roving frame, while this latter is in operation.

Abstract: Bobbins wound with rovings from a preparatory stage are loaded onto a carriage which receives them on an orthogonal array of horizontal pegs and transports them to a holding station for transfer, one column at a time, to a service unit moving continuously or intermittently past a multiplicity of working positions of a ring spinning machine whose spindles draw the roving from bobbins on a supply rack. The service unit, whose primary function may be that of a yarn-tying device or a traveling air blower, has a vertical conveyor with stems alignable with the pegs of the carriage in the holding station for picking up the bobbins to be transferred and delivering them, individually, to storage areas at or near the supply rack where fresh bobbins are needed as determined by a sensor aboard that unit. The storage areas may have overhead grippers onto which a bobbin is pushed from an erected stem at the upper vertex of the vertical conveyor.

Abstract: A truck carrying plural rows of vertically placed empty bobbins is conveyed to one end of the machine base of a flyer frame, the empty bobbins of the first row are taken out of the truck and conveyed to an empty bobbin supply device on the machine base, the truck is moved a predetermined distance by an intermittent feed unit, and fresh full yarn packages from the flyer frame already placed on a conveyor are transferred by a full yarn package transfer device to said truck at the positions from which the empty bobbins were removed. The operation of taking empty bobbins from the truck and supplying them to the empty bobbin supplying device on the machine base and the operation of transferring the full yarn packages to said truck are performed in an alternate fashion.

Abstract: On the main frame (1) of the ring spinning machine a box-shaped frame (11) is supported, which is used for exchangeably and loosely taking up storage devices (14), which can be lined up in a row. The storage devices (14) on their lower side are provided with a plurality of suspension devices (16) for taking up the roving bobbins (10). The frame (11) also is used as a rail arrangement for a transporting carriage (15), which can, using suitable elevator devices (17,18), and along its movement from one end of the machine to the other, take up at least one plate-shaped storage device (14) with empty roving bobbins (10), and can deposit at this location a plate-shaped storage device (14) with full roving bobbins (10).These measures permit complete automation of the exchange of roving bobbins on the machine.

Abstract: The invention concerns a spinning preparatory machine with suspended pivotable flyers arranged in at least one row. The flyers are supported in a frame composed of a longitudinal beam and two arms and arranged at right angles thereto, which frame is pivotable about a pivoting axis between an operating position and a doffing position. A pivoting and loading system is connected with the frame in such a manner that the frame is locked in its operating position.The spinning preparatory machine according to the invention shows, among others, the advantage of an accurate positioning of the pivotable flyers in a locked operating position, high operational reliability and affords safety against accidents from occurring.

Abstract: The present invention concerns a method of automatically doffing the full bobbin packages from, and donning the empty bobbin tubes onto, the spindles of a preparatory spinning machine equipped with flyers. The flyers are of the so-called suspended type, i.e. they are rotatably supported in a flyer head.For the conjoint, vertical doffing of the full bobbin packages, and for the conjoint, vertical donning of the empty bobbin tubes the flyers are pivoted to the side in such manner, that they cannot obstruct the doffing of the full bobbins any more.The inventive preparatory spinning machine comprises a common support beam in which the flyers are rotatably supported, in which arrangement the beam can effect a translatory movement in such manner that each flyer can be brought into an inclined position.

Abstract: A method and an apparatus for simultaneously changing bobbins in a fly frame wherein flyers supported from above are arranged in a zigzag fashion in front and back rows.

Abstract: Device for the semiautomatic doffing of spools on cops provided with mushroom-shaped upper ends on a spindle bench in spinning with immovable closed or open flyers, characterized in that the bench upper plate has arms articulated thereto about vertical axes; the arms performing alternate angular movements in the horizontal plane with predetermined amplitude; the free end of each arm being provided with an immovable and open grip capable of penetrating into the volume of revolution of the corresponding flyer at the arrest of the spindle and coacting with the corresponding mushroom-shaped upper end of the cop following its rise to a predetermined height; a level R fixed to each pin, a rod pivotally connected to said levers to supply an alternating angular movement to the levers and means to lower the cops until there is a complete withdrawal of the spindles from the cops and the arms are rotatable in the opposite direction with respect to the previous rotation into the flyer's volume of revolution so as to take

Abstract: A method and apparatus for changing bobbins in a flyer spinning frame which includes a bobbin rail for supporting bobbins adjacent the flyers movable both vertically and tiltably, the bobbin rail being moved sequentially from an upper bobbin winding position, a lower horizontal position, a forwardly tipped position, then upwardly in the tilted position into a comfortable bobbin doffing position, downwardly into the lower position, back into a horizontal position while in the lower position then finally upwardly into the upper bobbin winding position.

Abstract: A single-twist wire stranding or bunching machine having a reciprocating flyer traversing the length of a take-up reel and rotating coaxially with respect thereto, such take-up reel being mounted within pivoting means to facilitate easy removal of the reel after it is fully wound with wire. The invented machine comprises electro-mechanical means for automatically controlling the uniformity of the lay length of the twisted wire by correcting for changes in the velocity of the wire being fed into the machine due to wire build-up on the reel or to reversals of the traversing flyer. Additional control means are also disclosed for automatically controlling the points at which the flyer, in its reciprocating motion, reverses direction, thereby minimizing wire accumulations or recesses at the end flanges of the reel.

Abstract: A single-twist wire stranding or bunching machine having a reciprocating flyer traversing the length of a take-up reel and rotating coaxially with respect thereto, such take-up reel being mounted within pivoting means to facilitate easy removal of the reel after it is fully wound with wire. The invented machine comprises electro-mechanical means for automatically controlling the uniformity of the lay length of the twisted wire by correcting for changes in the velocity of the wire being fed into the machine due to wire build-up on the reel or to reversals of the traversing flyer. Additional control means are also disclosed for automatically controlling the points at which the flyer, in its reciprocating motion, reverses direction, thereby minimizing wire accumulations or recesses at the end flanges of the reel.