Abstract: An attachment assembly for the disc of a mobile agricultural device, including a washer configured to attach to a disc of the mobile agricultural device. The washer may be attached to a center location of the disc. The washer is operatively connected to a deflector bar. The deflector bar substantially prevents debris from accumulating between the disc and a fertilizer assembly attached to the disc, as the disc rotates. The deflector bar in other embodiments, may be directly connected to a fertilizer assembly, rather than to the washer.

Abstract: Below a ring-spinning spindle, a clamping ring and a clamping sleeve have frustoconical surfaces, at least of one first textured to increase the grip on an underwinding thread. The clamping sleeve, for example, may be spring-biased to axially engage the clamp and force may be required to open the clamp.

Abstract: An underwinding thread clamp for a spindle of a ring spinning or ring-twisting machine has a clamping sleeve biased by a spring against and juxtaposed with a collar on the spindle. The juxtaposed surfaces of the spindle and collar have wavy contours so that, upon engagement of an actuating member with each collar, the latter is cammed into its open position to release the respective underwinding thread so that the latter, engaged when a full bobbin was removed, can be released. The clamping of the underwinding thread permits the thread to be wound on the newly mounted core sleeve.

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: The improved device (1A, 1B) for removing the yarn reserve (15) wound on the spindles (13) of spinning or twisting machines (2), is of the type traversing on rails (3) positioned above and along the spinning or twisting machine (2) so as not to impede work carried out manually on the spindle frame. Moreover, so as to be particularly effective in removing yarn reserves (15) and dust, the brush (12) is circular in plan, it rotates about itself (12) and is housed partly within the suction port (11) such as to project by the amount sufficient for operation (FIG. 2).

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: For a changing of spool tubes and packages at an individual spinning unit of a spinning machine having a plurality of such spinning units, it is provided that, when a given filling ratio is reached, the yarn which continues to move to the spool package is disengaged from a cross-winding yarn guide and is subsequently, in the form of final windings, wound onto an area limited in longitudinal direction of the spool package onto the spool package.

Abstract: A spinning apparatus winds a strand onto a yarn package by relatively rotating a flyer and the yarn package about an upright axis so as to wind the strand in a succession of turns around the package by a flyer finger movable axially relative to the package. Each successive layer of turns is shorter than the preceding one so that the finished package has an axially upwardly tapered upper end. After substantially completely forming the package the rotation is generally stopped to leave the flyer in a position with the finger below the upper end of the last layer of turns formed on the package. Then the package and finger are relatively axially moved until the finger is generally at the upper end of the first layer of turns formed on the package. The flyer and package are then relatively rotated forward, that is in the same direction as when the package was being formed, through at least one half revolution about the axis so as to form a loop of the strand around the upper package end.

Abstract: Disclosed is an apparatus for treating tail yarns in textile spindle assemblies of textile spinning machines, twisters, etc., wherein a stationary upper slit ring and an axially slidable cylindrical member having a lower slit ring at an upper end thereof and a lower portion outwardly expandable by centrifugal force and provided with a spring are mounted on a base portion of a spindle to form a tail yarn gripping means, the pressed state of which is released by sliding the cylindrical member downward by rotational centrifugal force, whereby the yarn underwindings can be automatically removed from the tail yarn gripping means during operation.

Abstract: A method and apparatus for producing an end winding on a bobbin on which yarn has been wound. The bobbin is wound in an unwinding direction while the trailing yarn end is engaged and a length of yarn is unwound from the bobbin by suction. The yarn is released from the suction once a length of yarn has been unwound from the bobbin, the released unwound yarn falls onto a yarn support member to be supported at a location at substantially the level of the upper end of the bobbin. The bobbin is then further rotated in the unwinding direction to wind the unwound yarn length into an end winding on the upper end of the bobbin. The yarn support member includes a pair of oppositely sloping transverse surfaces spaced lengthwise of the yarn from one another to define a receiving slot therebetween and a yarn guiding eye is disposed beneath and in communication with the receiving slot for supporting the unwound yarn length during winding of the end winding.

Abstract: The invention concerns a spinning machine having a spindle with which to rotate a yarn package, a winding apparatus to wind the yarn on the package, and drafting rolls to feed the yarn to the winding apparatus. According to the disclosed method, the winding down of the yarn on the package is achieved by reversing the rotation of the spindle relative to the spinning direction. according to the disclosed device, a spacer ring is employed which is fixed to the spindle, and which has an upper and a lower hollow, a protruding edge, and substantially sharp edges which aid in cutting the yarn.

Abstract: Disclosed is an apparatus for treating tail yarns in textile spindle assemblies of textile spinning machines, twisters or the like, wherein a stationary upper slit ring and an axially slidable lower slit ring are mounted on a base portion of a spindle to form a tail yarn gripping means. The pressed state of the tail yarn gripping means is released by sliding the lower slit ring downward by rotational centrifugal force. The tail yarn can be securely fixed to the tail yarn gripping means and the yarn underwindings can be automatically removed from the tail yarn gripping means during the operation of the machine.When a flange of the upper slit ring is perforated with a plurality of yarn passing openings, the tail yarn released from the means for holding the yarn underwindings is retained by this yarn passing opening, which prevents adverse effects to the traveler in the early stage of winding, resulting in prevention of the occurrence of yarn breakage or the deterioration of yarn properties.

Abstract: The present invention relates to a spindle for a spinning frame or a twisting frame by which a tail yarn is formed on a full bobbin and is taken out from the full bobbin at a cop changing operation and is assuredly held on the spindle. In the spindle of the present invention, a band-like yarn-hanging member is arranged on the peripheral face of an intermediate part of a bobbin-attaching portion of the spindle and the band-like yarn-hanging member catches and holds the yarn wound in the form of a loop attached to the spindle at the cop changing operation.

Abstract: A doffing method in a spinning frame or the like comprises steps of holding a spinning bobbin after completion of winding with a holding member, removing the spinning bobbin from a spindle without bunch winds, fitting the spinning bobbin onto a bobbin conveying medium having an air path, cutting the yarn and sucking air within the spinning bobbin through the air path of the bobbin conveying medium to attract an end of the yarn adjacent the spinning bobbin into the spinning bobbin under the guidance of the holding member.

Abstract: In spinning machine comprising an underwinding device for winding the last turns, means are provided whereby the last yarn turns are cut positively on the intervention of the underwinding device and means are provided whereby the yarn end originating from the traveller is positively retained by the device to allow starting of the next winding operation at reduced speed, and this end is then released as soon as the spindle assumes its normal operating speed.

Abstract: The bobbin for receiving a roving has an internal shoulder enabling it to seat on a surface provided at the upper end 5 of a spindle. The bobbin hangs from this shoulder and the bottom of the bobbin is received in a resilient clamping means provided on the spindle for clamping a roving end against the bobbin.

Abstract: Prior to doffing a bobbin package, the roving is severed to form a beard which is located adjacent a stop on the spindle. After the bobbin package is doffed, the beard is located adjacent to an axial stop on the spindle. When a fresh tube is donned, the roving beard is brushed down by the tube and clamped by the bottom of the tube against the axial stop. A new package can then be wound while the roving beard remains clamped.

Abstract: A yarn winding method is disclosed where at the step of winding yarn on bobbin, at changing a full bobbin to an empty bobbin, a running yarn is wound on an auxiliary winding roller provided separately from the bobbin, travelling of the yarn and rotation of the auxiliary winding roller are then stopped, a full bobbin is exchanged by an empty bobbin, a part of the yarn wound on the auxiliary winding roller is then taken out to form a thread line for setting the yarn to the empty bobbin, travelling of the yarn, rotation of the auxiliary roller and rotation of the empty bobbin are then started, the yarn-setting thread line is shifted toward the side of the empty bobbin to wind the running yarn onto the empty bobbin, and the normal winding operation on the empty bobbin is then started. Also an apparatus for practicing this yarn winding method is disclosed.

Abstract: Disclosed is a plate-like yarn stripper device for use in removing staple fiber yarns from rotatable elements of circular cross-section, such as in the removal of yarn wraps underwound beneath a spindle blade to anchor the yarn threadline in the doffing and donning of cops on a ring spinning frame. The stripper is formed with a central hole defining stripping edges at a surface of the plate, these edges being spaced from the yarn-wound element by a prescribed distance such that when the element is rotated the wound yarn will buffet the edges and be abraded, weakened and cut or otherwise severed in the stripping action. Personnel safety is enhanced in use of the stripper by the absence of peripheral sharp edges, bristles or other abrasive external surfaces.