Abstract: A heat/process control is disclosed which takes advantage of the characteristics of some plastics in that they absorb medium wavelength infra-red heat waves in a comparatively wide range of temperatures (and therefore wavelengths). The heaters used in this equipment are of quartz-tube construction which can be used through a wide temperature range. Tests have indicated that lamp wattage and machine processing speed were mathmatically related. For plastics of different formulation and/or thickness a series of parametric curves exist. Each curve is resident in the machine control and can be incorporated with a simple selector switch. For a given plastic a mathmatical equation relating speed and heater temperature is selected. If an increase in speed is required, the target speed and associated temperature is calculated and then loaded into the controller.

Abstract: An apparatus for changing the frequency of motion of a core-pusher device for a rewinder in relation to the feeding speed of the web material to be wound, includes a mechanism for the actuation of the pusher which is kinematically connected to the driven shaft of an epicyclic gear train which includes two driving shafts and a driven shaft. A first driving shaft of the gear train in kinematically connected to a member rotating at a speed proportional to the feeding speed of the web material, and the second driving shaft of the gear train is kinematically connected to a correction motor.

Abstract: A rewinder for producing rolls or logs (R) of web material (N) comprises at least a roller (5, 7, 8) rotating at a speed proportional to the feeding speed of the web material (N), members (10, 11, 13) defining a winding space for the formation of the log (R), a pusher (15) for introducing a core into the winding space, and a cutting device (10, 21, 23, 25) for cutting the web material (N) at the end of the winding of each individual log (R). The rewinder. further comprises a mechanism (41, 61) for automatically varying the phase of the motion of the cutting device (10, 21, 23, 25) with respect to the motion of the web material (N).

Abstract: An absorbent disposable sanitary product such as a disposable baby diaper has an absorbent core and a multi-ply body-contacting topsheet. The construction of the diaper reduces raw material consumption and also waste at the source of manufacture and, therefore, is environmentally attractive. One of the plys of the topsheet contacts the body but not the core, and another contacts the absorbent core, as well as the body, with a space between the plys. The body-contacting ply has a plurality of upstanding cuffs which improve fecal containment, and the space between the plys reduces wet-back. The thickness of the multi-ply body-contacting topsheet is less than the thickness of conventional, single ply, nonwoven topsheets.

Abstract: The glueing apparatus includes a pair of endless conveyor members (13, 15) whose active branches (13A, 15A) are parallel, with one superimposed above the other and spaced apart to an extent corresponding to the diameter of the rolls or logs (R) and moving in the same direction whereby to move the log forward. The upper active branch (15A) extends further than the lower active branch (13A). Unwind mechanism (31) for unwinding the tail (L) of the material of the log (R) is located upstream of the lower endless conveyor member (13) and controlled by an optical sensor which checks the length of said tail. Downstream of the lower endless conveyor member (13) a glue dispenser (58) dispenses glue from below onto the outer surface of the log. A subsequent rewinding station (R) is located downstream of the lower continuous conveyor member (13).

Abstract: The aspirator or air-injector of the present invention includes an air transport pipe disposed within a fluid transport tube. The end of the pipe which is disposed within the tube is cut at an angle to the axis of the pipe and provides a beveled face disposed within the tube, facing upstream of any fluid passing through the tube, and being rotated at an angle between 5 and 20 degrees.

Abstract: A gear pump is described for pumping extremely low volumes of fluid at extremely low rates of flow. The pump includes a housing with a cavity therein and a pair of gears rotatable within said cavity. One of the gears is shafted and the other is shaftless, and the gears are made of resilient material with the diameter of the periphery of the tips of the gear teeth exceeding the diameter of the cavity in which they rotate. The face width of the gears also exceeds the depth of the cavity in which they rotate.

Abstract: The rewinding machine of the present invention produces rolls or logs of paper such as toilet paper, kitchen towels, etc. It includes an upper winding cylinder (9; 109), a lower winding cylinder (10) forming with the upper one an interspace (12), a mobile roller (14) able to define with said two cylinders a space in which the roll is wound. A pusher (22) inserts individual cores (A) in said interspace, and an applicator (34, 36, 38) wets the cores with adhesive. In combination with one (9; 109) of the two winding cylinders (9, 109; 10) a fixed surface (52; 80) is provided. A web of incoming paper N slides along the surface (52; 80). The pusher (22) moves the core (A1) at an insertion speed which is lower than the paper-feeding speed. During its insertion into the interspace (12) the core (A1) moves toward the fixed surface (52; 80), providing a temporary braking effect on the web N lying between the fixed surface (52; 80) and the core (A1).

Abstract: A sorter and receiving tray for paper sheets is described, including the control of each paper sheet so that there is positive displacement of the sheet into the receiving tray. The device disclosed includes both a top and bottom feeding mechanism, each of which controls with positive displacement the placing of the sheet into a receiving tray.Additionally, the sorter of the present invention controls the curl of the paper and includes fixed trays which can be fully loaded with paper, inasmuch as the curl problem is eliminated. The sorter also includes a signal device to indicate when a receiving tray is filled with paper. The sorter and receiving tray of the present invention is particularly arranged to avoid interference between the sheets of paper, and to eliminate paper jams, mis-sorts, and the like.

Abstract: A machine is described for perforating webs of material, such as toilet paper. The machine includes a cylinder (17) mounted on the frame of the machine and around which cylinder the web is carried as the web passes through the machine. The cylinder has a plurality of blades, one edge of each extending beyond the surface of the cylinder and parallel to the axis of the cylinder. A support (21) for a cooperating blade (33) is pivotally mounted on the machine in a manner which permits the cooperating blade (33) to move toward and away from the blades in the cylinder (17). The cooperating blade (33) extends at an angle to the axis of the cylinder and consists of a plurality of segments, each of which is supported in a block (25) which fits into seats in the support. The seats extend in a line parallel to the cylinder axis.

Abstract: The web embossing machine of the present invention has two embossing cylinders brought close to one another for combining two paper webs by the pressure contact between mutually corresponding protrusions on the two cylindrical surfaces. The protrusions are in rows which present a pattern inclined relative to the axes of the respective cylindrical surfaces, i.e., in a helicoidal fashion and relative to a plane passing at right angle through said axes, and thus achieve a subsequent and progressive contact instead of a simultaneous contact throughout the row. The inclination relative to a plane passing at right angle through the cylinder axis avoids repetitive pressure actions on the pressure rollers cooperating with the embossing cylinders.

Abstract: A multi-part tray is provided to carry a plurality of objects in precise and accurate array through a process device. The tray parts are each fastened to a flexible plate and also to a conveyor. The conveyor is caused to travel a circuitous route around convex curves which thereupon splay the tray parts apart beneath a loading station and also beneath an unloading station where the objects are slidably moved onto or removed form the tray. A plurality of loading and unloading fingers slide in corresponding grooves in the bottoms of the tray-parts and beneath the objects.

Abstract: The process and apparatus of the present invention includes a conveyor for applying a continuous sheet of plastic to the tops of a plurality of beverage containers, the tops and chines of which are smaller than the outer diameters of the containers. A heating element applies heat through openings in a mask placed between the heater and the plastic and softens portions of the plastic in areas in alignment with the tops of the containers but smaller than the container tops. An unsoftened portion of the plastic surrounds the softened portion in alignment with the chines of the containers and a forming plate pushes the plastic sheet against the container tops so that the softened portion is above the tops, and the unsoftened portion snaps around and beneath the chines.

Abstract: The apparatus for the production of paper napkins or other similar products which includes a feeder for continuously supplying a web of material, a slitter for cutting the web into a plurality of longitudinal strips, a first folder to fold the strips lengthwise, a transverse cutter for providing lengths of longitudinally folded strips, a second folder to fold the strips transversely, and a stacker to pile up the finished napkins. A driving roller matches the two edges of the longitudinally folded strips and downstream of the driving roller are inclined surfaces to separate the longitudinally folded strips to lay them down on a common geometric plane parallel to each other.

Abstract: A post-support for permanent installation at or below ground level includes a post-receiving collar affixed to fins. The fins have collar supporting shoulders against which a post may rest. A driver/cap/marker has a cap and a sleeve and the sleeve length is the same as the collar length so that when the driver/cap/marker is inserted into the collar the lower edge of the sleeve rests on the shoulders and the underside of the cap/marker rests on top of the collar. The driver/cap/marker serves firstly as a tool for inserting the support into the ground, secondly as a cover for an unused support, and thirdly as marking/locating means for an unused collar.

Abstract: A document feeder is disclosed which can be used with glass-top machines. It fits such copiers, having either a stationery or a moving sheet-support. It is small, lightweight, compact and portable. It feeds the bottom-most page first from a face-up stack of sheets, and re-stacks the copied sheets, face-up, with the bottom sheet at the bottom of the new stack. It operates in excess of 25 copies per minute. Drive wheels feed the document-to-be-copied onto the copier glass and, when the wheels are reversed, remove the document from the glass into a stacking area. The removal of a document from the glass and the placement of the next document onto the glass occur during the non-copying time of the continuously-running copier. The feed/separation act upon the center of the documents. The copier can derive its driving force and energy from the copier or can have its own independent power source.