A method for perforating a web with a perforating apparatus includes: rotating a cylinder about a longitudinal cylinder axis, wherein the cylinder comprises at least one shaped blade; operatively engaging a movable support with the cylinder; positioning an anvil disposed on the support so as to cooperate in contacting relationship with the shaped blade, wherein at least one of the blade and the anvil comprise a plurality of teeth, and wherein adjacent teeth are separated by a recessed portion; feeding a web between the cylinder and the support; and perforating the web as the anvil cooperates in contacting relationship with the shaped blade disposed on the rotating cylinder.

The invention relates to a multi-pack container which defines a series of containers (11) formed in a plastic sheet (L) that comprises at least a layer of PET (polyethylene terephthalate), and in which said containers (11) are joined by bridges (12), provided with a pre-cut upper line (13) and a pre-cut lower line (14) for breaking the bridge (12). The pre-cut upper line (13) and a pre-cut lower line (14) are arranged parallel to one another, laterally separated in a horizontal direction and vertically separated to prevent heating by compression and a variation of the properties of the PET layer, allowing for clean breakage of the bridge by rotating the containers with respect to said pre-cut upper and lower lines. The invention also comprises a machine for manufacturing the multi-pack container.

A machining device for scraping a workpiece is provided. The machining device includes: a drive unit for driving a scraper; a first detection unit for detecting the position of the scraper; a second detection unit for detecting the machining force of the scraper with respect to the workpiece; a first acquisition unit for acquiring information relating to displacement of the scraper; a second acquisition unit for acquiring information relating to the machining force of the scraper; and a control unit for driving the drive unit based on the information relating to the displacement of the scraper by the first acquisition unit and the information relating to the machining force of the scraper acquired by the second acquisition unit, so the displacement and the machining force of the scraper satisfy a prescribed relationship. A control device and a control method for the machining device are also provided.

Voice Writing machine shows how imprints or etches of voices can be imprinted on aluminum foil or other foil on cylinders that takes voice input from cone like input device. Other foil can be used to take the voice input too. Voice imprinting and voice writing can be studied for what kind of etches are made on different metal foils or paper. Voice writing machine shows a way imprints of voices can be taken or made on aluminum or other foil to take recordings of voices sounds. At the end of the cone, there are fibers or metal wire to record the voice on the foil. Voice writing machine shows a way of imprinting impressions of sounds on aluminum or other foil the way the voice produces a sketch on the cylinder foil. Voice writing machine shows a new way of recording voice signatures on metal or other foils.

A perforating apparatus may have a first roll comprising a first design and a second roll comprising a second design, each roll being in close proximity with a support member and each roll comprising a blade or an anvil. A web material may travel a first path between the first roll and the support member or, alternatively, may travel a second path between the second roll and the support member.

A processing station for processing a substrate web supplied and led away with a substantially continuous speed includes an impression roller and two tool cylinders. Within one revolution of the tool cylinder, the transport speed of the substrate web at a contact area between tool cylinder and impression roller can periodically vary relative to the rotation speed of the tool cylinder. Of the two tool cylinders, at any time only one is in an operative state in that it is in engagement with an impression roller. The other tool cylinder is in a non-operative state in which it can be made accessible for thereon exchanging a tool plate.

An arcuate or circular cutting and/or marking apparatus comprises a bridging element comprising legs engageable to a grid base, wherein the bridging element comprises a circular cutting and/or marking element extending from a bottom of the bridging element for cutting and/or marking material, and a rotary handle connected to the circular cutting and/or marking element extending from a top of the bridging element for rotating the cutting and/or marking element. Systems and methods of the same are further provided.

A method for manufacturing a paperboard structure configured to snap apart. The paperboard structure has a first surface and a second surface. The method includes defining first line along the first surface of the paperboard structure. The first line extends a first cut depth D.sub.1 through the paperboard structure. The method further includes cutting a second line along the second surface of the paperboard structure. The second line extends a second cut depth D.sub.2 through the paperboard structure. The second line is offset from the first line by a first offset distance D.sub.O1.

The invention relates to an apparatus comprising a pair of rollers (2) with a nip and having respective axes thereof in a common plane therebetween, first and second roller mounting arrangements (8) at respective opposite ends of said pair (2), said arrangements having a hinging system (26, 30) at one side of said common plane and whereby one of the pair of rollers (2) can be turned relative to the other. The invention also relates to an associated method.

Disclosed herein are plaster boards that include first and second layers of hardened plaster material, a liner attached to the first layer of hardened plaster material, and a first material (e.g., a polymer material such as a viscoelastic polymer) adhered between the liner and the second layer of hardened plaster material. The liner includes one or more structurally weakened regions each extending substantially from a first edge to a second opposing edge of the plaster board. The structurally weakened regions of the liner may facilitate creation of a fissure that propagates substantially within a plane within the plaster board. Methods for making the plaster boards may involve drying wet plaster material while it is in contact with a liner having structurally weakened regions, processing a liner to form its structurally weakened regions while in contact with wet plaster material, or processing a liner to form its structurally weakened regions while in contact with hardened plaster material.