Abstract: Multi-ply laminae are provided which are suitable for use as tell-tale indicators for identification cards, credentials and the like. The laminae are post-laminated to a core layer bearing a photograph or similar information or indicia. Thereafter attempts to delaminate the card result in fibers being torn from a uniaxially oriented polyethylene or polypropylene layer of the laminae. Attempts to readhere the layers with adhesives result in tell-tale indicia in the form of the torn fibers which cannot be adequately realigned or adhered so as to be unnoticeable. Moreover, attempts to heat seal the card after tampering causes the oriented polymer to shrink and opacify resulting in additional tell-tale indicia of tampering. In addition, the core comprises heat seal surfaces upon which printing and other indicia is placed whereby any attempt to alter the printing or other indicia results in destruction of the card.

Abstract: A metal forming tool useful to form internal and external impressions of various configurations upon two piece can bodies of round, oval, triangular, rectangular or irregular and unsymmetrical cross-section.

Abstract: A can end conveying device for conveying ends from a first press to a second press. The conveyor has an input end and a divertor downstream therefrom. Ends are conveyed along a first track to a stacking station which feeds the ends through a first conduit in a block and then through a gate and onto the track for the second press. When the supply of ends from the first press terminates or falls below the demand of the second press, the gate is shifted and ends are fed by an operator onto a manual feeding track for the second press. When the supply of ends from the first press exceeds the demand of the second press, the divertor is activated by a sensor on the stack and diverts the ends from the first track to a second track leading to a manual bagging station. A novel gate structure is disclosed which facilitates jam free operation of the device.

Abstract: A synchronous oscillator demodulator for linear variable differential transformers and synchronous resolvers having electronic circuitry designed to digitally construct a preferred waveform of a predetermined frequency and to establish precisely the preset point at which the amplitude of the waveform is to be measured at the secondary winding of the transformer. This synchronous oscillator demodulator permits the use of linear variable differential transformers and synchronous resolvers for high frequency applications and under conditions of noise and vibration while still maintaining a high degree of accuracy and repeatability. A system and apparatus to enhance the signal from a given linear variable differential transformer and tune same in relation to the signals of other similar but not identical transformers is disclosed.

Abstract: A synchronous oscillator demodulator for linear variable differential transformers and synchronous resolvers having electronic circuitry designed to digitally construct a preferred waveform of a predetermined frequency and to establish precisely the preset point at which the amplitude of the waveform is to be measured at the secondary winding of the transformer. This synchronous oscillator demodulator permits the use of linear variable differential transformers and synchronous resolvers for high frequency applications and under conditions of noise and vibration while still maintaining a high degree of accuracy and repeatability. A system and apparatus to enhance the signal from a given linear variable differential transformer and tune sane in relation to the signals of other similar but not identical transformers is disclosed.

Abstract: A method and apparatus is disclosed for the labeling of soft-surfaced disposable cups--particularly those having a tapered or frustum shape--with a thin paper label (32) which provides decoration and structural rigidity to the cup. The label is cut between a die roller (30) and anvil roller (31) from a web (28) of paper having a coating of heat activable adhesive on one side, and the cut label (32) is laid on the rotating surface (37) of a vacuum drum (36). Vacuum ports (113) in the anvil roller (31) and ports (157) in the vacuum drum hold the label on the surfaces of the roller and drum during rotation. The label is heated while on the rotating vacuum drum (36) to activate the adhesive, and an indexer plate (42), having a plurality of cup holding mandrels (41), indexes a mandrel (41) holding a cup (46) into a position in which the rotated cup contacts the heated label and draws it off of the surface of the vacuum drum.

Abstract: A method is provided for polymerizing lignosulfonate materials without undesirable viscosity build-up or gelling. The method comprises the steps of premethylolating the lignosulfonate under alkaline conditions followed by condensation of the premethylolated lignosulfonate at elevated temperatures and under neutral and acidic conditions.The resultant products are useful in any of a variety of applications wherein the surface active properties of lignosulfonates may be desirable. The products are useful as dispersants and especially as dye dispersants.

Abstract: A side loading, top opening reclosable carton, formed from a one piece blank has multiple layer front, rear and side walls, and single layer top and bottom walls, providing efficient placement of multiple layers of material only in the vertical walls, which are subjected to substantial stacking stresses. An optional, and novel, end lock has a male lock tab on a front side flap confined between embossments on two rear side flaps. The lock is secured by adhesion provided by a bottom side flap and bridging the front side flap and the outer rear side flap.

Abstract: Disclosed is a method of transferring energy from a stationary generator of power at radio frequencies to a rotating work station such as a coil to heat inductively by selectively connecting the generator as the work station rotates past the generator. A pair of stationary contact strips connected to the generator are used to connect the low voltage, high current radio frequency (RF) energy to the rotating machine. The contact strips are a commutating device in that they can intermittently be connected to a series of brushes or contactors carried by work stations requiring power. The contact strips form a closed loop which shunts the energy at the point where the brushes engage and/or leave the contact strips thereby keeping the current flow to a minimum at those points. As the brushes slide across the contact strips they move from the shunt to the power input points on the contact strips and where the current flow increases because the voltage difference between the strips is the greatest.

Abstract: Ligno-novolak resins, either in the form of physical blends of lignin and novolak resins or as synthetically derived from the reaction of lignin, phenol and an aldehyde in the presence of an acidic catalyst, are provided. The resins, including the physical blends, are curable to thermoset, substantially completely cross-linked resins in which the lignin is interreacted and cross linked through the action of a curing agent such as hexamethylenetetramine. The resins are useful in the production of molding compounds that exhibit properties that are at least comparable to those of compounds derived from novolak resins. Moreover, excellent heat deflection temperatures and superior electrical properties are exhibited by such molding compounds.

Abstract: A continuous process is provided for effecting the acid hydrolysis of whole grains, e.g., corn, at high solids and in an economically desirable manner. The process produces glucose which is readily fermentable to produce ethanol.

Abstract: A pyrolysis process and system produces a solid residue and a clean, enriched fuel gas. In the process, the pyrolytic oil and filter cake are recycled in such a manner as to produce products of optimal value, and to minimize the need for servicing and downtime of the system. Recycling of water recovered in the process may also be employed to achieve enrichment of the gaseous product. The process may be carried out in such a manner as to produce a non-polluting wastewater stream that can be discharged directly from the system.

Abstract: A method and apparatus for cleaning particulate matter from container bodies. Container bodies are conveyed, open end down, along a corridor formed by two parallel pressurized fluid curtains. The container bodies pass over a series of nozzles which subject the interior of the containers to blasts of ionized gas. The ionized gas neutralizes any electrostatic charges and expells the particulate matter from the container. The curtaining sweeps the expelled particles into a spray mist region where they are entrained and subsequently condensed into a waste stream for disposal. The apparatus features a tunnel which substantially separates the fluid curtaining from the spray mist region. An outer housing enclosing the spray mist region is fabricated of transparent plastic to permit visual monitoring.

Abstract: A low noise air nozzle system for fanning and separating stacked sheet to facilitate single sheet pick-up. The system employs nozzles which are provided with a diverging air ejection channel which terminates at the nozzle face in an orifice slit 0.025" wide.

Abstract: An inverted press for producing multiple drawn metal containers combines in one press the functions of cupping and drawing presses. The press includes a blanking and cupping station and several drawing and redrawing stations, disposed one adjacent the other and rendered serially operative by a vertically reciprocable slide assembly. At each stage of operation the material, semifinished article or finished article is under complete control. A method for producing a drawn container by multiple forming and reforming of a drawn article, is also provided.

Abstract: An inverted press for producing multiple drawn metal containers combines in one press the functions of cupping and drawing presses. The press includes a blanking and cupping station and several drawing and redrawing stations, disposed one adjacent the other and rendered serially operative by a vertically reciprocable slide assembly. At each stage of operation the material, semifinished article or finished article is under complete control. A method for producing a drawn container by multiple forming and reforming of a drawn article, is also provided.

Abstract: Novel lignin-phenol-formaldehyde resins, suitable for use as wood bonding adhesives, are provided by a two-step method which comprises reacting formaldehyde and phenol in the presence of an alkaline catalyst for a period sufficient to produce a partially condensed phenol-formaldehyde resin, thereafter reacting said precondensed resin with sodium hydroxide, formaldehyde and a lignin concentrate having at least 40% solids and comprising lignin dissolved in (a) phenol and water; or (b) phenol, water and sodium hydroxide or ammonia, the lignin to phenol weight ratios in said solution being less than 70:30 and more than 40:60. The second stage of the method is conducted at reflux temperature initially after which reaction is conducted below reflux temperature to control the degree of condensation.

Abstract: A blister card package has a product with an enlarged portion, and a conforming blister. Interference between the resilient blister and the enlarged portion retains the product in the package when the product is subjected to moderate removal forces, such as gravity. The product may also be returned to the package for resilient retainment and storage.

Abstract: Photopolymerizable epoxide compositions are provided which contain photoinitiators decomposable upon exposure to electromagnetic radiation to produce a Lewis acid and polymerizable epoxide compounds including an epoxide ether compound having the following general structural formula: ##STR1## wherein n equals 1-3 and wherein R is an aliphatic or cycloaliphatic group having 5-12 carbon atoms. Other epoxide compounds may be used in combination therewith to provide compositions which cure rapidly to a tack-free condition at ambient temperatures. Specific epoxide ethers disclosed are those in which n=1 and R is a group selected from the class of 2,2-dimethylpropane, 2-ethyl-1,3-hexane, 1,4-dimethylcyclohexane and 1,10-decane.

Abstract: The instant invention relates to an end closure or cover for a metal container comprising a substantially flat sheet metal lid seamed about its extremity to the container body closing the body end. The lid has a pour opening having a closure hingeably connected to the lid and closing the pour opening provided to retain the closure against inward displacement thereby resisting atmospheric pressure and premature opening of the container and against outward displacement due to internal pressure during processing.