Abstract: A coiler plate of the type adapted for rotational disposition in association with a sliver can of a textile draw frame, wherein the coiler plate has a compression surface for contact with sliver deposited in the can and a sliver conduit through the coiler plate opening at the compression surface, may be coated with enamel over the compression surface and the interior wall surfaces defining the sliver conduit to provide a reduced coefficient of friction relative to sliver.

Abstract: A spindle for a ring spinning machine has an electric motor for rotating the spindle. The electric motor has a stator having a generally square configured stack of magnetically active plates. The corner regions of the stack of the stator have brackets mounted thereon which hold the plates together, and these brackets are fixedly mounted relative to the bearing housing of the spindle bank.

Abstract: A method and apparatus for exchanging roving bobbins on a ring spinning machine or the like. A temporary storage spindle is provided in a service unit which services the ring spinning machine and a roving cutting and piecing apparatus and a spindle are movable between the temporary storage spindle, the bobbin holder of the spinning machine and a spare bobbin frame of the spinning machine to receive and transfer bobbins thereat to the temporary storage spindle, the bobbin holder or the spare bobbin frame. In one exchange process, the bobbin on the bobbin holder is transferred directly to the spare bobbin frame after the bobbin on the spare bobbin frame has been transferred to the temporary storage spindle. Thereafter, the bobbin on the temporary storage spindle is transferred to the bobbin holder. According to another exchange process, the bobbin on the spare bobbin frame is transferred directly to the bobbin holder after the bobbin on the bobbin holder has been transferred to the temporary storage spindle.

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 belt type spindle drive apparatus for textile machines of the type having a plurality of simultaneously driven aligned spindles arranged in at least one row. An endless belt extends in driving engagement along the spindles and is driven by a plurality of belt driving devices. In one embodiment, the belt driving devices have drive rollers offset from the spindle rows and coaxial overlapping input and output rollers that guide the belt to and from the drive roller between adjacent spindles. The paths of the belt entering and leaving the drive devices are offset. When an uneven number of devices is used, a pair of canted auxiliary rollers are used to make the number of belt path offsets even. To accommodate the offset of the guide rollers, one or the other guide rollers can be canted toward the drive roller or the drive roller can be canted. Alternatively, adjacent drive devices can have the same offset relationship and the belt path can be inclined from one drive device to the other.

Abstract: Apparatus for removing and filtering dirty air from equipment such as textile spinning machines. The apparatus has a suction duct through which dirty air is drawn. An intermediate duct containing a filter unit extends from the suction duct to a blower that blows the air through a discharge duct. The intermediate duct and discharge duct are partially contiguous with a common wall that has a portion shiftable from a common wall disposition during normal operation to a common wall opening and air flow diverting position to reverse air flow through the filter unit for cleaning and to cause air to be drawn to the blower through the discahrge duct. The shiftable wall portion may be mounted for pivoting or for sliding. The intermediate duct and the discharge duct may be arranged parallel or in crossing relation and may be rectangular to semi-circular in cross-section.

Abstract: An apparatus for positioning aligned, elongate segments of a ring rail of a textile machine relative to vertically movable ring rail supports includes a centering bore and projection, a lateral guide bore and projection and a longitudinal guide bore and projection. The bores are selectively formed on the vertically movable ring rail supports and the ring rail segments and the projections are correspondingly formed on the other of the ring rail supports and the ring rail segments. The lateral guide bore and projection accommodates variations in the lateral extent of the ring rail segment and the longitudinal guide bore and projection accommodates variations in the longitudinal extent of the ring rail segment so that the ring rail segment is maintained at a predetermined position with respect to the spindles serviced by its associated rings while variations in its longitudinal and lateral extents which may occur due to temperature changes or the like are automatically acccommodated.

Abstract: In a yarn splicing operation on a ring spinning machine wherein a broken end of yarn is drawn into a suction tube in position for splicing, the suction is reduced after the yarn is in position to avoid damage or destruction of the yarn as it is being held by suction. The reduction in suction is accomplished by the opening of a bypass, the restriction of the tube or a reduction in the speed in the motor of the suction pump.

Abstract: Full sliver cans are positioned in readiness for replacing cans being emptied with an end of the sliver exposed from the full can. A movable carriage is positioned at a full can and a gripper on the carriage extending vertically downward is rotated around the can to grasp the exposed end with suction. Any excess length of sliver is severed. The gripper is then raised to lift the sliver end and the gripper is pivoted in its raised position above a feed table onto which the gripper releases the sliver end for feeding on the table to the draw frame with the other slivers thereon. The full can whose sliver end is on the feed table is then pushed from the ready position into the sliver feed position and in doing so pushes the empty can out of sliver feed position to complete the replacement.

Abstract: Apparatus for guiding the travel of roving between succeeding roller pairs at a spinning machine drafting station having telescoping tube members defining a roving guide channel therethrough and displaceable apart from one another to be variable in length for adjustable disposition between the nip areas of the successive roller pairs throughout a full range of different spacings therebetween.

Abstract: A lightweight, rigidified support stand for textile spinning and like machines may be easily manufactured with close tolerances without resort to a casting process by welding together a profiled sheet metal base having a substantially flat main support surface provided with a plurality of receptacles for fastening of machines components and a sheet metal brace member of a U-shaped profile. The formation of the fastener receptacles in the base member enables the receptacles to be arranged in a single plane with close tolerances, while the brace member serves to rigidify the base member.

Abstract: In the threading of roving coming from a roving bobbin into a running set of drafting rolls of a work station of a spinning machine, the beginning end of the roving coming from the roving bobbin is grasped and brought into the set of drafting rolls bypassing at least the first (upstream-most) pair of rolls and is delivered to the drafting rolls downstream thereof. Only then is the roving fed into the set of drafting rolls bypassing at least the first pair of rolls inserted laterally in the preceding (bypassed) roll pair or pairs from a side of the free or unjournaled end of the upper roll.

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: An arrangement for mounting a suction tube on a fly frame, roving frame, ring spinning machine or the like for collecting broken ends of yarn at the outlet rollers of the machine. The suction tube has a suction end and an opposite end connected through a flexible sealing sleeve to a collection chamber, with the sleeve permitting the suction tube to pivot between different positions. A mounting rod is secured to and extends between the stanchions of the machine frame intermediate the collection chamber and the outlet rollers, and a support arrangement is mounted on the rod and includes a retaining mechanism for positioning the suction tube and releasably retaining it in an operative position in which the suction end is proximal the outlet rollers and an inoperative position in which the suction end is spaced from the outlet rollers. In one embodiment the suction tube is pivotally mounted on one arm of the support and releasably retained in a slot in another arm of the support.

Abstract: A traveling service unit for an associated textile spinning mill machine may be elevationally adjusted with respect to a reference rail mounted longitudinally along the machine by a feeler guide element pivotably mounted to the service unit in following engagement to the reference guide rail in conjunction with an operatively associated controller connected with vertically adjustable roller support assemblies of the service unit 1 for varying the elevation of the service unit 1 as necessary to compensate for deviations in the pivotal disposition of the feeler guide element with respect to horizontal.

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: In a traveling service unit of the type utilized in conjunction with a textile spinning mill machine, the transverse and longitudinal inclination of the service unit with respect to the machine is monitored and adjusted with respect to a fixed horizontal reference plane by at least two electronic levels or like inclination detectors each operatively connected through an associated controller with a vertically-adjustable roller wheel supporting assembly of the service unit for controlling the elevation of the service unit at each supporting assembly to compensate for detected inclination deviations.

Abstract: In the process and apparatus for loading a ring spinning machine with roving-supply bobbins at least two bobbins rows extending longitudinally on each side of the spinning machine supply roving to the work stations and a auxiliary bobbin row which can travel in with full bobbons and out with empty bobbins are provided. According to our invention an exchange process is provided comprising replacing the roving of the bobbins in one of the bobbins rows supplying the roving which is being consumed by the roving of the auxiliary bobbin row which has been brought in with full bobbins. Thus the auxiliary bobbin row becomes one of the bobbin rows dispensing the roving while the bobbin row being replaced now becomes the auxiliary bobbin row with empty bobbins and is taken away. A new auxiliary bobbin row with full bobbins is then brought in. The exchange process is repeated for each of the bobbin rows as the roving is exhausted. A simple space saving apparatus for performing this process is described.

Abstract: A suction tube for a fly frame, roving frame, ring spinning machine or the like for collecting broken ends of yarn at the outlet rollers of the machine. The suction tube is connected to a collection chamber through a flexible sealing sleeve that permits the suction tube to pivot between its operative and inoperative positions. The suction tube comprises a suction end disposed under the bottom roller of the outlet rollers that has a body portion formed with a suction opening therein, an opposite end connected to the flexible sealing sleeve, and a pair of side walls projecting upwardly from the suction end body portion toward the bottom roller and longitudinally beyond the suction opening on opposite sides of the yarn for confining the suction substantially to the bottom roller and the yarn path.

Abstract: A process and apparatus for job control of servicing elements at a spinning installation with a plurality of servicing points, wherein existing servicing cases are detected and analyzed for correction control by a central control unit. Existing servicing cases are automatically detected separately according to number and correction requirement and, depending on number and degree of difficulty of the sevicing cases detected, a job instruction signal of one of at least two signal stages is transmitted to a corresponding associated servicing element according to a predetermined ranking of the servicing elements.