Abstract: An accessory strap fixing structure is positioned on a portable electronic device to assemble an accessory strap. The accessory strap fixing structure includes an assembling space and a rotary element. The assembling space defined in the portable electronic device. The rotary element is rotatably assembled within the assembling space. The rotary element forms a projection for attaching an end of the accessory strap to allow the accessory strap to pass through the assembling space. The invention also discloses a portable electronic device having the accessory strap fixing structure.

Abstract: A sheet material supply roll wrapped on a core tube including a reserve segment of sheet material spirally wrapped around the core tube with a supply segment of sheet material spirally wrapped on top of the reserve segment of sheet material. Different methods for placement or attachment of the roll ends are provided including perforated, overlapping, spaced, and integrated flap methods and apparatus. Further, a cross oriented low supply indicator is provided on the supply roll to provide a quick indicator of the end of roll without disrupting the remaining integrity of the supply.

Abstract: Devices and methods for paying off an elongate material between two coaxially aligned packages without interruption. The elongate material from a first wound package is connected to the elongate material of a second wound package by joining the tail end of the first wound package to the head end of the second wound package. Each wound package includes the elongate material having a body portion and a tail portion wound about a core. Also, each body portion has the head end at an outer diameter of the respective package and each tail portion has the tail end at an inner diameter substantially corresponding to a diameter of the core. Further, the path of the wound elongate material is transitioned from the first wound package to the second wound package by providing transition device having a supporting surface.

Abstract: A yarn package forming machine for winding a yarn on a bobbin to form a yarn package on the bobbin, comprising: a stationary frame structure; a pair of supporting arms, rocking means, a pair of bobbin holders, a friction roller, yarn traversing means, yarn releasing means, and yarn end forming means. The yarn end forming means comprises a yarn transferring member, a yarn retaining unit and a yarn cutting unit to form a yarn end portion including a first trailing yarn end portion trailing to a bunch winding portion formed by the yarn releasing means to be wound on the full yarn package at a predetermined angle with respect to the axis of the bobbin, and a second trailing yarn end portion to be wound axially outwardly of the full yarn package on the bobbin.

Abstract: A method of finishing a reel of wound yarn with a tail end of yarn hanging from the reel can prevent the tail end from becoming caught up and thus unwinding considerable lengths of yarn from the reel and comprises the steps of unwinding a predetermined length of yarn including the tail end, folding the length forming an eye by means of a connection of distinct points on the predetermined length of yarn adjacent the cylindrical surface of the reel, rotating the reel to form at least one rewound turn of yarn including the first connection of points and connecting the eye projecting from the rewound turn to a point of the predetermined length of yarn which is not rewound so as to form a second connection.

Abstract: A cake of glass fibers or the like has a waste yarn which is provided by winding a strand, which continues from an end yarn extending in contact with a winding tube, on the winding tube to cover the end yarn before a usual winding work for forming a cake on the winding cube. This cake can prevent filaments from being broken by rubbing of the strand in the innermost layer of the cake with the end yarn which is pulled into the cake when the end yarn is cut after the stand is completely wound on the winding tube.

Abstract: A method for producing a yarn reserve, in particular on a cross wound package carried on a bobbin former which has an end which projects beyond the package. A groove is provided in the end portion for securing the yarn as the yarn is wrapped therearound before being brought back over the surface of the package for producing a yarn end reserve.

Abstract: A spandex supply package has a cylindrical core on which is wound spandex having a surface lubricating finish. The last few hundred meters of the wound-up spandex, which constitute about 0.1 to 0.5% of the total length of spandex wound up in the package, has less than half the concentration of finish as does the remainder of the wound-up spandex in the package.

Abstract: A textile machine producing cross-wound bobbins or cheeses includes a number of work stations having a creel with a bobbin changing position for holding a yarn package having an outer surface and an end surface and being disposed on a tube having an end, and a movable servicing device serving the work stations for changing takeup bobbins and having a drive apparatus for a bobbin in the changing position and a yarn suction device for seeking, aspirating and pulling off a yarn end that has run up onto the outer surface of the yarn package. An apparatus for forming a yarn reserve on a bobbin at a winding station includes a yarn guide element being disposed on the creel and movable toward and away from the bobbin for clasping the tube over a sector of at least 90.degree. in the circumferential direction of the tube and winding the yarn end on the end of the tube to make a yarn reserve. The yarn guide element has a yarn guide surface to be placed against the end face of the yarn package.

Abstract: A yarn processing method for a tail end of a yarn of a package. A tail end of a package is dropped at its end from a yarn layer of the package to cross the end of the package, after which it is returned onto the yarn layer so that the tail end is easily searched out in a later step.

Abstract: An end cap is releasably mounted on the end of a cylindrical hollow tube to form a reusable cylindrical yarn carrier or winding tube which carries a filamentary or fibrous yarn thereon. The end cap has a paper or wear resistant exterior surface and a rigid polymeric or metallic insert secured to and extending around the inner periphery thereof. The cylindrical hollow tube is formed of a cylindrical laminated paper outer surface and a rigid polymeric or metallic insert attached to the inner surface thereof adjacent at least one end. The rigid inserts carry threads that mate to releasably connect the end cap to the hollow tube. The abutting ends of the hollow tube and end cap, when assembled, define a peripheral starting groove therebetween. A minor portion of the peripheral groove is relatively narrow (locking portion), while the remaining major portion of the groove is wider (lead-in portion).

Abstract: An end cap is releasably mounted on the end of a cylindrical hollow tube to form a reusable cylindrical yarn carrier or winding tube which carries a filamentary or fibrous yarn thereon. A ring is slidably retained on the end cap in non-rotatably relation thereto between the adjacent end of the hollow tube and the confronting wall of the end cap. The confronting walls of the ring and end cap define a starting groove therebetween. A cavity of recess is formed, partially in the surface of each of the cap and ring, extending beneath and across the starting groove. When the yarn carrier has been emptied, the operator uses the cavity as access for scissors or a knife to sever the transfer tail and the major portion of the waste bunch. Later at a cleaning and refurbishing operation, the end cap is loosened from the hollow tube, and end cap and ring separated, and the remaining or residual fibers or filaments vacuumed or stripped away.

Abstract: A reserve winding of yarn on a tube on which a cross-wound package is built. The reserve includes an end projecting from the windings and extending to provide an initial length along the surface of the tube and around which windings are formed without substantial overlapping with the windings progressing from the inward extent of the initial length of yarn toward the tube end. The reserve winding is formed by a method utilizing an apparatus that is part of a traveling service unit and includes a suction conduit centrally located in a tube clamping plate for drawing-in the end of yarn and yarn guiding and advancing elements that guide the yarn inwardly along the surface of the tube and then advance the yarn outwardly during rotation of the tube to form the non-overlapping windings. The drawn-in end of the yarn is then cut at a maximum of approximately one centimeter from the windings or is inserted into the interior of the tube.

Abstract: After winding of a thread into a package, the thread is severed and, in order to prevent whirling of the thread end around the package, the end portion is interlaced with the package surface during the braking phase of the package. Interlacing is performed by blowing pressure jet against the thread end and the package surface within an interlacing chamber defined by a pivotally mounted shoe from which the pressure jet is emitted.

Abstract: In a collapsible polymeric yarn carrier having at least one end flange, a transfer tail receiving structure comprises a groove formed in the end flange for receiving the windings of the transfer tail, a thin protective layer of material overlying and covering the groove, a cut or overlapping seam in the layer of material overlying the groove to allow a transfer tail winding to pass through the material and be wound in the groove, and a pair of boundary surfaces on the flange on each side of the groove and containing an annular ridge in each boundary surface to facilitate securing the layer of material in place over the groove.

Abstract: A spool (20) which is used in the taking up and the paying out of a relatively long length of optical fiber includes two flanges (24, 26) and a hub (22) with each flange being tapered. The spool includes a collector (30) which is formed adjacent to one of the two tapered flanges of the spool and which provides access to the initial or leading end portion of the length of optical fiber which is wound on the spool. A groove (32) of the collector communicates with the hub of the spool through each of the two diametrically opposed slots (28--28) in the adjacent tapered flange (24). This allows the optical fiber to be wound on one of two coaxially mounted spools and to be transferred to the other spool with the first few convolutions being received in the groove and then passed through one of the slots in the adjacent tapered flange onto the hub.

Abstract: A three flange cable spool having first and second spaced-apart flanges, a tubular-shaped medium portion attached to and disposed between the first and second flanges delimiting a first outside surface between the first and second flanges, a plurality of spokes inside of the medium portion attached to the medium portion, a third flange, spaced apart from either one first or second flange, with a lateral protrusion thereon, a part of the lateral protrusion removably received in the medium portion and another part of the lateral protrusion forming a second outside surface between the third and either the first or second flanges.

Abstract: A yarn package structure that includes a package support having a main body of yarn, a yarn transfer tail consisting of a plurality of helical turns leading to said main body of yarn, a plurality of circumferential turns of yarn located in a circumferential stringup groove adjacent one end of the package support leading to said transfer tail, and a surface cavity on the package support intersecting the plane of said stringup groove. A means for pulling the circumferential turns of yarn over the end of the package support is secured by the circumferential turns of yarn against the package support.

Abstract: The invention comprises (a) an improved cross wound yarn package on which the final few turns of yarn are wound as a compact pile wound bunch on the cylindrical cross wound package surface; (b) apparatus for winding such a package, comprising a fixed pile winding guide (4 in FIG. 3) as well as a traverse guide (1 in FIG. 3) and means effective to move the yarn from one to the other (5 in FIG. 3); and (c) a modified yarn traverse roll with an extra circumferential groove to aid pile winding (2 in FIG. 1) intersecting a helical traverse groove (1 in FIG. 1).

Abstract: An apparatus for forming transfer tail windings on a bobbin includes a bobbin having an annular groove adjacent one end thereof which in the case of a tapered bobbin, would be located adjacent the larger diameter end. The annular groove is provided with a radially disposed wall and an inclined wall which is tapered outwardly from the radial wall toward the end of the bobbin. A spring-biased pivoted yarn regulator extends transversely across the path of the yarn from the spinning unit to the deepest portion of the annular groove on the bobbin and is provided with a yarn guide portion opposite the inclined surface of the annular groove. A centering disc engages the end of the bobbin adjacent the annular groove and is provided with a plurality of yarn engaging notches spaced about the circumference thereof. The yarn from the spinning unit is directed over the yarn guide portion of the yarn regulator around the bottom of the annular groove and over the top of the annular groove back toward the yarn regulator.

Abstract: Disclosed is a cone bobbin utilized for making a yarn package thereon. The bobbin is provided with a main portion having a shape of a frustum of a cone, whereon the yarn package can be formed. From the bottom end of the main portion, a cylindrical bottom end portion of the bobbin is coaxially extended toward the outside, and a reserve winding can be formed on this bottom end portion.

Abstract: An improved yarn supply package comprising a yarn package holder is provided with a first yarn waste bunch wound on the package holder at one end portion thereof and a second yarn waste bunch connected to the first waste bunch and wound on the package holder intermediate the first waste bunch and the opposite end portion of the package holder. A main yarn package is wound on the package holder a distance from the second yarn waste bunch and is connected thereto by a yarn transfer tail. A power cylinder-actuated yarn tailing mechanism and a control system for the automatic control of the operation of the tailing mechanism is disclosed wherein the rod end of the cylinder carries a first tailing pin for guiding the initial windings of yarn on the package holder to form the first yarn waste bunch. A second tailing pin is carried by a tailing pin head and is supported adjacent the piston rod so that it moves along a line parallel to the axis of the piston rod.

Abstract: An improved yarn supply package having a yarn package holder with first and second end portions a first yarn waste bunch wound on the package holder adjacent the first end portion, a second yarn waste bunch connected to the first waste bunch and wound on the package holder intermediate the first waste bunch and the second end portion of the package holder, and a main yarn package wound on the package holder a distance from the second yarn waste bunch and connected thereto by a transfer tail. Also disclosed is a method of producing the improved yarn supply package as well as a pneumatic cylinder-actuated yarn tailing mechanism and a pneumatic control system for the automatic control of the operation of the tailing mechanism.

Abstract: A device effects the method of controlling a reserve winding during winding of a thread onto a spool or core, in which the thread is fed to the spool by a delivery mechanism via a traversing device. A reserve winding zone is defined adjacent the end of the spool. The thread is applied to the spool at an intermediate point within the reserve winding zone. Then, the thread is moved outwardly along the spool toward the end thereof and subsequently moved inwardly in the direction of the thread package to be formed.The device comprises means for effecting the method of the invention. A specific embodiment includes a stationary limiting member and a pivotally mounted thread guide control member which moves in cooperation with the stationary member to effect the desired method.

Abstract: A yarn wound package formed on a bobbin by a supplied yarn comprising a normal yarn wound portion and a transfer tail wind portion formed on the bobbin at an end portion thereof adjacent to the normal yarn wound portion. The transfer tail wind portion is composed of a plurality of spiral windings wound on the bobbin and a plurality of said spiral windings wound on a bobbin portion adjacent to an end thereof are formed in superimposed condition at at least one portion on the bobbin. An end of the transfer tail wind extending from the above-mentioned superimposed portion is cut. A yarn guide means is pivotally mounted on a member holding the bobbin so as to positively introduce the supplied yarn to the above-mentioned particular portion of the bobbin so as to superimpose the spiral windings when the transfer tail wind is forming.

Abstract: The present invention relates to a process and a device for forming a transfer tail on winding bobbins of high-speed winding frames by use of an auxiliary thread guide which is swivelled over a predetermined track at a predetermined speed and, subsequently, passes the yarn over to the reciprocating thread guide. It is possible to obtain a transfer tail of adjustable and reproducible length even at high winding speeds.