Abstract: A winding hub for tape information carriers is designed with spring elements between an inner ring and an outer ring for providing a compression ratio from the inner diameter to the outer diameter of less than 1:4. To increase the holding forces of the winding hub during reeling, the spring elements are assigned limiter elements.

Abstract: A support for at least a single annular body or a plurality of stacked annular bodies, comprising a hollow cylinder and retaining bodies with flanges and annular attachments and also provided with hook devices for at least one tensioning element, whereby the parts of the support itself and the annular body or the annular bodies are held together or stored. The support can be used for any type of rings, annular plates etc. and also of wound-up bodies in band form.

Abstract: Packaging containers, comprising an at least two-part cardboard blank, for pancakes are described, bottom part and top part containing a central circular clearance, through which a hub sleeve consisting of plastic is inserted. The pancakes are stackably arranged one after the other on said hub sleeve, after which the top part is placed on and then the side parts are folded up. A shrink film is drawn over the entire pack. In this way, the contents of the pack are protected against damage during transit both by the cardboard and by the shrink film. The pack is recyclable or reusable.

Abstract: The invention relates to parallelepipedal packaging containers for recording media in tape form which are wound up onto hubs provided with internal bores and are stacked one on top of the other, comprising a bottom part, a top part and side parts, which are joined to one another by means of molded-on film hinges, and it being possible for a hub support to be pushed through the internal bores of the hubs.

Abstract: A ring part and individual winding hub combination comprises a single-flange ring part with or without spring elements on the receiving circumference for the internal bore of the associated winding hub, which has or does not have spring elements between the internal bore and outer circumference. Receiving circumferential rim and internal bore may expediently be designed with intermeshing toothings.

Abstract: A hollow-cylindrical supporting core for pancakes which is produced from recyclable plastic by injection molding is described, the arms, which may be angled off, which extend from the gating point and run to the inside diameter of the supporting core remaining in place after demolding of the injection mold and being suitable as holding grips for the supporting core.

Abstract: Parallelepipedal packaging containers, suitable for return transport, for wound-up magnetic recording media, produced from a one-part or multi-part blank having a bottom and top as well as side parts, which are joined to one another by means of foldable joining tabs and containing a hub support extending from the top to the bottom. The bottom and the top each have a circular central clearance through which a one-part or multi-part hollow-cylindrical hub support is inserted, onto which the wound media are fitted in a stackable manner. For assembly of the package from the folded-up state, the hub support has a locking snap-in device on at least one end face.

Abstract: The multipack for pancakes of relatively large diameter comprises two end plates (1, 2) and an intermediate plate (4), anchored on which is a tube (3) on which the pancakes are arranged in series with cushioning disks placed in between. The end plates include fixing means on their narrow sides for stacking a plurality of the multipacks described on top of and next to one another on one and the same pallet. A film of plastic is drawn over each multipack and each multipack is held together by securely lashed straps, which are drawn over the end plates.

Abstract: A right-parallelepipedal multipack for vertically stacked wound rolls, comprising a rectangular pallet (1), a rectangular base plate (3), located on said pallet and provided with a multiplicity of clearances (2), an identically constructed intermediate plate (5) and a likewise identical top plate (6), a multiplicity of wound rolls (4) respectively stacked in-between and means (7, 8, 9) for fixing the pack and the wound rolls, wherein the wound rolls are recording media (10) in tape form which are wound-up on flangeless hubs (11) which are provided with inner bores and through which there is fitted a hub sleeve (8) which is mounted non-displaceably in the clearances (2) of the base plate (3), intermediate plate (5) and top plate (6), and a cover (9), provided with a ring, being adapted to fit onto the upper end of the hub sleeve (8) above the top plate, the lateral four corners of the pack being secured by vertically attached corner parts (7) and a stretch film (12 ) being drawn around the side parts of the pa

Abstract: A winding shaft is described, having self-tensioning individual winding elements (6) for winding mandrels mounted on it in such a way that they can be driven, which include in each case in an annular groove (14) of each individual winding element a compliant tensioning means, the outside diameter of which is greater than the inside diameter of the winding mandrels. The winding means comprises a plurality of cylindrical-annular segments (2) arranged on the circumference of the individual winding element in the annular groove, the end faces (13) of which segments are beveled and are mounted radially displaceably on the inner face of the intermediate pieces (3), there being seated between the inside of the segments and the bottom of the annular groove a spring element, comprising either a leaf spring or a plurality of helical springs with ball thrust pieces.

Abstract: In an injection moulding tool for the production of a magnetic tape cassette casing constructed, in part, in two layers the apparatus has a fixed core (1a) provided, on the rim, with a projection (5) which provides a sealing strip relative to the moving core (2a). After the injection moulding process into the first mould cavity (4), the moving core (2a) is moved axially downwards by about half the wall thickness, whereupon the second mould cavity (3, 3') is filled by injection through a second needle shut-off nozzle (FIG. 1b).

Abstract: A video cassette consists of an upper cassette part (8) and a lower cassette part (6), at least one reel which is located therein and onto which magnetic tape can be wound, in which a pressing spring resiliently loads the tape reels (1, 2) in the direction of a defined operating position, the hub (3) of the tape reels having on its side facing the upper cassette part a centrally arranged sleeve-shaped recess (11). According to the invention, there is seated in the recess a helical spring (10), which is resiliently supported in the recess and in the other end of which there is fitted a pin (12), which consists of abrasion-resistant material and the upper end (7) of which bears against the upper cassette part (8) in the assembled cassette state (FIG. 2).

Abstract: A magnetic tape cassette, for example an audio cassette, which is distinguished by an attractive outer appearance, consists of a bottom part and a top part, transparent in each case, and contains inside it two adjacent tape rolls. The bottom part and the top part each have a transparent housing wall having transparent or slightly colored regions and opaque or untransparent regions. The untransparent or opaque regions are produced by printing surface areas of the cassette housing walls including the application of various patterns and/or colors.

Abstract: The upper and lower cassette parts of a magnetic tape cassette are connected to each other by means of non-releasable fixtures, wherein a synthetic material bolt is introduced into at least one of the holes provided for screw connections according to the prior art. The bolt is provided with longitudinal ribs (8) or with an inner bore (9) or possesses a thread-like or saw tooth-like track (11) in the manner of a dowel (FIGS. 3a-3c).

Abstract: An apparatus for winding a video tape on to the spools of a cassette comprises a winder for winding the video tape on to spools and a "delivery" device for delivering a pair of spools to the winder. The "delivery" device comprises a movable cylinder containing two pistons, which cylinder acts on a swivel arm, the free end of which arm carries a rotatably mounted arm. This arm has a pair of holders for holding the pair of spools and a guide device for guiding the tape leader situated between the spools. The transfer device described above transfers the pair of spools from the container to the pins of the winder and from the winder back to the container after the winding process.