Abstract: A method for avoiding ribbon windings in producing cross-wound bobbins at the workstations of textile machines in the “random winding” type of winding, by changing the traversing speed at which the thread is wound onto the bobbin. Each workstation has a single motor drive activated for the rotation of the cross-wound bobbin, and a single motor drive activated for a traversing thread guide. The diameters (DSP k) of the bobbin (8) which are critical with regarding to the development of ribbon windings depending on the width (BSp) of the bobbin (8) and a cross-winding angle (?) are determined, and, shortly before reaching each critical diameter (DSP k), the cross-winding angle (?) is changed to a value (?1), which avoids development of ribbon windings in this diameter region, and the cross-winding angle (?1) is reset to its original value (?) after the critical diameter (DSP k) has been passed.

Abstract: A method for forming the wound package of cylindrical cheeses on rotor spinning machines, wherein a crossing angle ?M in a central zone of the bobbin traverse is less than 28° and a crossing angle ?R in the end zones located adjacent the ends of the wound package is increased in respect to the central zone. The cylindrical cheeses thereby produced are distinguished by great running lengths, solid structure, good density distribution, and excellent unwinding properties.

Abstract: A method for forming the wound package of a conical cheese on rotor spinning machines, wherein a crossing angle ?M in a central zone of the bobbin traverse is less than 28° and a crossing angle ?R in the end zones located adjacent the ends of the wound package is increased in respect to the central zone. The cylindrical cheeses thereby produced are distinguished by long running lengths, solid structure, good density distribution and excellent unwinding properties.

Abstract: A method for forming the wound package of a conical cheese on rotor spinning machines, wherein a crossing angle &agr;M in a central zone of the bobbin traverse is less than 28° and a crossing angle &agr;R in the end zones located adjacent the ends of the wound package is increased in respect to the central zone. The cylindrical cheeses thereby produced are distinguished by long running lengths, solid structure, good density distribution and excellent unwinding properties.

Abstract: A method for forming the wound package of cylindrical cheeses on rotor spinning machines, wherein a crossing angle &agr;M in a central zone of the bobbin traverse is less than 28° and a crossing angle &agr;R in the end zones located adjacent the ends of the wound package is increased in respect to the central zone. The cylindrical cheeses thereby produced are distinguished by great running lengths, solid structure, good density distribution, and excellent unwinding properties.

Abstract: An apparatus for transporting and exchanging containers of textile strand material at a textile strand processing machine having a plurality of processing stations is disclosed. The device includes a guide device for guiding containers around the machine. An endless drive connection reciprocally movable in the transport path and having flexible portions reciprocally movable through the corner sections of the transport path is included as well as a drive means for reciprocally driving the drive connection. Container engaging elements are also provided for drivingly engaging containers during movement of the drive connection. The drive connection may include rods disposed in the straight portions of the transport path which are connected to the flexible portions. The container engaging elements may comprise pawls mounted on transverse shafts which may be spring biased into the container engaging dispositions.

Abstract: An equipment for transporting, handling and feeding stock bobbins to a loom having a preparation station (5) for the charging of bobbin holders (12) with stock bobbins (4) and a transport loop (7) for transporting these bobbin holders (12) towards looms. The looms are arranged in groups and for returning bobbin holders (12') containing empty bobbin tubes towards the preparation station (5), as well as at least one storage section (7c) branching off the transport loop (7) for receiving a number of the bobbin holders (12, 12') which corresponds with the need of bobbins at the time by at least one of the groups of looms (1a, 1b, . . . 1n). For the exchange of the bobbin holders (12' or 12 respectively) on the looms a loading mechanism (18) is provided which is mounted on a secondary transport mechanism (10) which may be moved independently of the transport loop (7) towards a number of groups of looms (1a, 1b, . . .

Abstract: A transport system for transporting tube support members between textile machines includes a mobile transport unit having a plurality of superposed floorings each of which supports and guides several rows of the tube support members. An onsite transfer assembly adjacent each textile machine is operable to simultaneously load tube support members onto the parallel support paths of the mobile support unit while unloading tube support members from the parallel paths onto the textile machine. Each flooring of the mobile support unit includes a transverse support surfaces at each end of the parallel support paths onto which a newly loaded row of tube support members can be positioned for subsequent movement into the parallel support paths. Each flooring also includes an offload transverse support surface for supporting a row of the tube support members for transverse movement thereof onto an intermediate holding assembly of the onsite transfer apparatus (change assembly to apparatus above).

Abstract: A mechanism for feeding weft yarn stock bobbins to a loom includes a bobbin frame (3) for at least two stock bobbins (4) which may be fitted to bobbin holders (38) having longitudinal axes (L) which may be aligned on a common yarn guide member (6). The bobbin holders (38) are each formed on a bobbin carrier (10, 10') intended for receiving one of the stock bobbins (4) and able by means of a holder (30) of a charging mechanism to be fastened to the bobbin frame (3) and removed from the bobbin frame, the bobbin carrier having a yarn guide unit (45) for feeding the piece (A) at the start of the weft yarn (5) wound onto this stock bobbin (4) to the common yarn guide member (6).

Abstract: A transporting carriage for conveying a coiler can of curved outer circumferential surface in an upright orientation between a can stand of a sliver producing fiber processing machine and a can stand of a sliver comsuming fiber processing machine includes an apparatus for transferring the coiler can from the carriage to the can stand and from the can stand to the carriage in a linear transferring direction.

Abstract: An apparatus for transporting sliver cans between a sliver can handling location and a textile spinning machine includes a rod member having a plurality of uniformly spaced engaging members. A pair of preferably plastic, parallel sliding rails each extend parallel to the rod member on a respective side thereof for supporting the sliver cans for sliding movement therealong. The rod member is supported for axial and rotational movement and is operatively connected to a drive device which cyclically axially displaces the rod member by a uniform amount of travel corresponding to a uniform spacing between the sliver cans. The rod member is rotated 90.degree. to move the engaging members between horizontal disengage positions in which they are out of engagement with the sliver cans and vertical engage positions in which the engaging members project vertically for engaging the bottom rim portions of the sliver cans during axial displacement of the rod member.

Abstract: A yarn package transfer apparatus is provided which includes devices for removing hollow yarn package adapter devices from downwardly and generally vertically-extending package holders movably and serially-mounted on an overhead conveying system, for inserting such hollow adapter devices into the hollow tubes of a desired number of yarn packages positioned in a generally horizontal position in a package supply assembly, and for transferring such packages of yarn from the package supply assembly and mounting the hollow adapter devices and yarn packages carried thereby onto the vertically-extending package holders of the overhead conveying system for conveying of the yarn packages. The apparatus preferably includes devices for positioning the loose ends of the yarn from the yarn packages on the adapter device in desired positions during the transferring operation.

Abstract: A conveyor apparatus for advancing articles in a direction of conveyance, including a conveyor track on which the articles are supported; an endless driven conveyor element and an article carrier device including an article carrier element pivotally supported on the endless driven conveyor element. The article carrier element is adapted to engage and thus convey, or be disengaged from an article on the conveyor track. The article carrier element comprises a pivotal lever and a carrier lug formed on the pivotal lever. The latter has an activated pivotal position in which the carrier lug is adapted to be brought into and maintained in a force-transmitting engagement with one of the articles and a deactivated pivotal position in which the carrier lug is maintained disengaged from the articles. A force-exerting device urges the pivotal lever into the activated position. There is further provided a contact element on the pivotal lever downstream of the carrier lug as viewed in the direction of conveyance.

Abstract: A sliver can transporting apparatus and method for circulating sliver cans between a draw frame and a sliver supply station includes an inner track component and an outer track component. The outer track component transports empty sliver cans from the draw frame to a sliver supply station and the inner track component transports full sliver cans from the sliver supply station to form a row of full sliver cans at a final can ready position. Longitudinal bar members are selectively operated to transfer the full sliver cans in groupwise manner from the inner track components to the outer track component to allow another row of full cans to be supplied to the final can ready position and to transfer the rows of full sliver cans to the double rows of the draw frame. In correspondence with the transfer of the full sliver cans to the draw frame, empty sliver cans are discharged from the draw frame to be transported along the outer track component to a sliver supply station for refilling.

Abstract: A method and apparatus for automatically removing and collecting in an orderly fashion fully-spun cops from a plurality of textile ring spinning machines wherein each ring spinning machine has a longitudinal conveyor for transporting doffed cops to one machine end and a movable cart is provided for transverse travel between the corresponding machine ends for collection of doffed cops from the machine conveyors. The cart carries a plurality of cop magazines and an associated means for automatically depositing cops into a magazine in a cop receiving position. Means are provided for automatically receiving and delivering doffed cops from the machine conveyors to the cop depositing means and means are further provided for automatically positioning the magazines one-by-one in proper cop receiving position with respect to the cop depositing means.

Abstract: A winding machine having a transporting device for directly supplying to the winding machine bobbins or spun coils from a spinning machine, and for returning ejected tube sleeves to the spinning machine, includes a device for comparing and adjusting a flow of the tube sleeves returned from the winding machine to a requirement for tube sleeves by the spinning machine, the transporting device being connected with a device for holding back ejected tube sleeves which are at least partly wound.

Abstract: A method and apparatus for automatically removing and collecting in an orderly manner fully-spun cops from a plurality of textile ring spinning machines of the type having longitudinal conveyors for transporting doffed cops to one machine end for collection. The present invention provides a respective transport apparatus in end-facing relation to each spinning machine for automatically bringing magazines to the machine for filling with doffed cops. A cart travels transversely intermediate the machines and their associated magazine transport apparatus to receive doffed cops from the machine conveyors and transfer them automatically into magazines provided on the associated magazine transport apparatus.

Abstract: A method for sorting cheeses on an automatic winding machine includes predetermining a set-point value ratio of yarn length to cheese diameter. An actual value ratio of yarn length to cheese diameter is automatically measured. The measured values are automatically compared with the set-point values. Cheeses for which the actual value ratio of yarn length to cheese diameter is within a predetermined range of the set-point value ratio are automatically selected as quality cheeses.

Abstract: A coil carrier whose shell may be rigid (3; 20) or axially and/or radially compressible (37), has an end ring (1) and an upper ring (2). The upper ring (2) is provided with an axially projecting collar (14) which can be fitted inside the end ring (1) of an adjacent coil carrier of identical construction, at the same time leaving room for a thread reserve which is provided on the collar (14) and thus accommodated in a protected manner, particularly if coil carriers of this kind are placed axially one above the other and the coils located thereon are compressed axially. The measure by which the collar (14)of one coil can be inserted in an axially adjacent coil carrier can be determined by shoulders (9, 13) and extensions (10, 15). This measure can be determined in such a way that a thread can be fed from the thread reserve to a package to be produced or already present on the coil carrier, without becoming jammed.