Abstract: Apparatus for dispensing toilet tissue alternately from two rolls includes a housing and roll support spindles for supporting the rolls in coaxial spaced relationship relative to the housing. A sliding cover is slidably positioned on the housing. The roll support spindles are mounted on a pivoted support frame and a pivoted plate depends from the support frame and is located in the space between adjacent roll ends. The cover includes detents which cooperate with the pivoted plate to allow sliding of the cover on the housing to expose a different roll of toilet tissue only when one of the rolls is substantially depleted.

Abstract: A center pull towel dispenser includes two housing members which pivot about a vertical pivot axis. A support plate supports the coreless roll product on end with the lead end of the coreless roll product passing through a bottom wall disposed under the support plate. Various structural elements of the apparatus cooperate to provide ease of threading of a roll product lead end into a dispensing member including a downwardly converging, generally cone-shaped wall and to resist inadvertent pinching of the sheet product to be dispensed when the housing members form a closed interior.

Abstract: A roll of paper toweling is dispensed from the opening of a dispenser due to a manual pulling force applied to the toweling. The toweling is separated into a plurality of toweling segments by a plurality of spaced tear lines, the tear lines being straight, parallel to each other, and extending orthogonally relative to the side edges of the paper toweling. The perforated tear lines are formed of a plurality of spaced, elongated, axially aligned slits separated by frangible toweling portions extending between the slits. The frangible toweling portions are narrower near the side edges of the toweling than in the middle thereof and the distances between the centers of the toweling portions are substantially the same along the length of the perforated tear line.

Abstract: A support spindle adapts a toilet tissue dispenser cabinet designed for use with conventional toilet tissue rolls having cores for use with coreless toilet tissue rolls. The support spindle includes a roll stop which is used to position a coreless roll at different locations on a rotatable sleeve incorporated on the support spindle. An insert positioned in the cabinet is employed to prevent premature actuation of a roll drop-down mechanism employed in the cabinet.

Abstract: Dispenser apparatus for dispensing paper sheet material from one or more paper rolls includes a housing having a bottom opening communicating with the interior of the housing. A paper roll support is located at the bottom opening partially closing the bottom opening. The paper roll support forms a dispensing opening into which the paper roll projects to provide ready access to the paper roll. The paper roll support includes a downwardly curved roll engagement surface which forms a nip with the paper roll during dispensing.

Abstract: A system for dispensing individual sheet material segments from a roll of sheet material in which the sheet material is separated into individual segments by perforated tear lines. The sheet material roll is continually positioned on support rollers with the lead end of the sheet material passing through a nip defined by the rollers and a member which is biased against the rollers to resist rotation thereof. After passing through the nip the end of the toweling proceeds through a restricted opening. Pulling of the end-most segment by a consumer causes the end-most segment to be separated along the perforated tear line separating it from the adjoining, following segment.

Abstract: Apparatus for mounting a paper roll product having a core on a coreless paper roll spindle having an enlargement. The apparatus includes an adapter spindle for sliding over the coreless paper roll spindle and a lock within the interior of the adapter spindle for locking the coreless paper roll spindle and the adapter spindle against substantial relative axial movement.

Abstract: A support spindle apparatus is inserted into the central aperture of a coreless toilet tissue roll to support the coreless toilet tissue roll in a toilet tissue dispenser cabinet having side walls defining at least one elongated, generally vertically oriented slot. The support spindle apparatus includes a double-ended elongated spindle body frictionally engaged with the toilet tissue roll, a roll stop element fixedly attached to the elongated spindle body to positively prevent movement of the coreless toilet tissue roll relative to the support spindle apparatus in a single axial direction, and an enlargement fixedly attached to the elongated spindle body at one end of the elongated spindle body and having a bearing surface oriented toward the roll stop element.

Abstract: Roll support spindle apparatus for rotatably supporting a coreless paper roll for dispensing. The spindle apparatus includes relatively movable spindle members, at least one of which is locked against rotation to exert a braking force on the coreless paper roll to prevent free-wheeling of the coreless paper roll during unwinding.

Abstract: Coreless paper roll products are formed by slitting a paper web to form web segments having side edges. The web segments are then wound about an elongated winder shaft. During winding of the paper web, liquid is applied to the web segments only at the side edges thereof while maintaining the web segments free of liquid between the side edges. When the rolls are formed and stripped from the winder shaft, the openings located at the ends of the roll at the roll central aperture will be well defined and allow ready insertion of a dispenser spindle. All the material of the roll can then be dispensed.

Abstract: A system of forming a coreless roll paper product in which an elongated coreless paper roll is cut into segments by a saw. Prior to being cut from the elongated coreless paper roll, each roll segment is positioned on a support shaft located on a rotatable turret. The roll segment is severed while being supported by both an elongated mandrel and the support shaft, the blade passing through a space between the mandrel and support shaft. The turret has a number of spaced support shafts projecting therefrom, and rotation of the turret simultaneously brings the support shafts to various locations so that various steps in the operation are performed seriatim and simultaneously.

Abstract: An apparatus and a method for forming coreless paper roll products are disclosed. Coreless paper roll products are formed by slitting a paper web to form web segments having side edges. The web segments are then wound about an elongated winder shaft. During winding of the paper web, liquid is applied to the web segments only at the side edges thereof while maintaining the web segments free of liquid between the side edges. When the rolls are formed and stripped from the winder shaft, the openings located at the ends of the roll at the roll central aperture will be well defined and allow ready insertion of a dispenser spindle. All the material of the roll can then be dispensed.

Abstract: Apparatus for dispensing web material from a coreless roll of such material includes a fixed shaft having a spindle rotatably mounted thereon. The spindle is axially movable relative to the shaft. The spindle includes at least one dog which is cammed outwardly when the spindle is moved axially relative to the shaft to tightly engage the innermost convolution of a coreless roll mounted on the shaft and spindle to resist endwise removal of the coreless roll.

Abstract: Chemical waste is burned in oxygen using an electric plasma flame to heat a stream of gas which contains at least 70% by weight oxygen. Liquid waste in fine droplet form is introduced into the gas stream via a two-fluid atomizer using a carrier gas also preferably oxygen. The total amount of oxygen present is at least 30% more than required for complete combustion of the liquid waste. The reaction mixture is maintained at a temperature of at least 1450.degree. C. for a time of at least 2 milliseconds prior to cooling rapidly of the reaction products to a temperature below 300.degree. C.

Abstract: A center-pull dispenser housing has a top and a support, the support defining a dispensing aperture. A coreless roll of sheet material is disposed on the support with the lead end of the sheet material extending from the coreless roll center through the dispensing aperture. The coreless roll has either channels or projections formed at the ends thereof which cooperate with stabilizing elements on the housing to resist movement of the coreless roll and collapse of the coreless roll as it nears depletion.

Abstract: An interconnection device is disclosed that is connected between a semiconductor device to be tested and the tester to match the device output impedance with the load applied to the semiconductor device and to prevent reflection on input waveforms in propagation delay measurements.