Abstract: A core end plug for mounting a roll of sheet material on a shaft. The plug comprises a cylindrical band of stiffly flexible plastic material having ends defining a longitudinal gap therein. A plurality of radial webs extend inwardly from the band. A pair of the webs are opposite each other and are provided with first and second elongated apertures which define identical acute angles to the diameter of the band. A third web defines third and fourth elongated apertures along a common major axis perpendicular to the diameter. A band is fitted into each end of a roll core and a mounting plate is inserted into each core end plug. A mounting shaft extends through central apertures in the mounting plates and through the fourth aperture in the third web. Pins in the mounting plate are received in the first and second elongated apertures.

Abstract: A paper roll supporting device for an image forming apparatus includes a pair of flange members to be inserted into opposite ends of a paper roll. Each flange member includes a flange body made up of a flange portion and a cylindrical support portion that is to be inserted into a tubular core included in the paper roll. A claw member has a plurality of claws capable of protruding from the outer circumference of the support portion. A biasing member exerts a pressure on the claw member. Pressing means is slidable in a direction in which the biasing member is compressible. The pressing means receives one end of the biasing member and contacts the inner circumference of the support portion. A lock/release lever is capable of being brought down for causing the pressing means to slide. The claw member causes its pawls to flare in the radial direction when pressed in the axial direction of the support portion. The device with this configuration can be easily locked to the paper roll.

Abstract: Holder for rolls of web-shaped materials, for example paper, nonwoven or foil, the holder including a shaft (7) intended to be inserted into the centre hole (5) of the roll (2), so that the roll can rotate around the shaft for unrolling the web-shaped material. In order to provide a braking of the rotation of the roll the shaft (7) is provided with at least one resilient member in the form of a leaf spring (10) having one end attached to the shaft and having a free portion (12) which in unloaded position projects radially from the shaft for increasing the radial dimension thereof, the resilient member can be brought to spring towards the spindle.

Abstract: A paper dispensing apparatus for preventing paper from unraveling from the roll.

Abstract: A self-locking core and shaft assembly includes an elongate generally cylindrical metal shaft having a plurality of spaced elongate upraised bosses extending substantially the entire length thereof. The spaced bosses define a plurality of spaced channels that also extend substantially the entire length of the shaft. The shaft carries an elongate hollow generally cylindrical core having a plurality of spaced inwardly projecting elongate bosses that extend substantially the entire length of the core and define a plurality of elongate spaced channels that also extend substantially the entire length of the core. The shaft and core are sized such that the core fits tightly on the shaft to inhibit rotary movement of the core with respect to the shaft. The core is made of material resistant to water absorption such as reinforced fiberglass or plastic.

Abstract: A coupling between a spool and a brake drum includes: a metallic base having a first axial opening formed therein for extension of a spindle therethrough; a metallic rim disposed about the first axial opening and integral with and extending in a generally axial direction from the base, with the rim including an edge having a discontinuous planar surface disposed substantially orthogonal to the axial direction; and a magnet integral with the base that magnetizes the discontinuous planar surface of the rim of the magnetic chuck. The edge has a stepped profile resembling a rectangular wave; the rim is circular and coaxial with the axial opening in the base; and the magnet includes a second opening formed in register with the first opening in the base for extension of the spindle therethrough. The magnetic chuck is disposed on the spindle between the spool and the brake drum. The magnetic chuck is secured by fasteners to the brake drum for rotation therewith about an axis of the spindle.

Abstract: The invention is an apparatus for converting sheets of paper into cushioning dunnage. The apparatus includes a supply assembly, a conversion mechanism, a cutting assembly and a cutting assembly interlock device. The supply assembly supports the paper which is to be converted. The conversion assembly crumples single ply paper into cushioning dunnage and the cutting assembly cuts the newly formed dunnage into desired lengths, where the dunnage is allowed to fall into a container to cushion an item within the container. The cutting assembly interlock device permits activation of the cutting assembly only when the cutting assembly has fully moved into the proper, cutting position.

Abstract: A roll holder device is for use with a recording paper roll including a tubular spool shaft and continuous recording paper wound about the tubular spool shaft in a roll form. In the roll holder device, first and second holder cores are inserted in respectively first and second ends of the tubular spool shaft. A holder frame supports the first and second holder cores in a rotatable manner. Anti-dropping levers prevent the tubular spool shaft from dropping from the first and second holder cores by pushing a shaft inner surface of the tubular spool shaft.

Abstract: A rolled sheet material dispenser and holder that allows one to tear off a single sheet at a time without unrolling unwanted sheets. The apparatus is designed so that the moment of inertia of the core element and paper roll are sufficient to retard excessive spooling when a sheet is torn off the roll.

Abstract: A dispenser assembly for dispensing product arranged in a roll and the roll has a cavity disposed at each end of the roll. The dispenser assembly includes a base, a pair of arms having first and second ends and at least one roller associating with the second end of the respective arm. The first end of each arm attaches to the base and each second end extends outwardly from the base. The roller has a roll engaging portion which is structured and arranged to extend from the second end into the respective cavity of the roll when the roll is inserted into the arms.