Abstract: A laminating apparatus for bonding a plurality of substrates to form a unitary laminated product such as a printed circuit board. The machine includes a frame defined by a pair of parallel, spaced vertical side plates and upper and lower load bearing cross beams extending between said side plates. The frame defines a processing chamber including front and rear openings by which access to the chamber is provided. A plurality of platen assemblies are positioned within the chamber and front and rear doors are sealingly engageable with the frame to seal the chamber from atmosphere. One door is hingedly connected to the frame whereas the other door forms part of a door assembly that includes a trackway pivotally mounted to the processing unit for movement between adjacent and spaced positions. The other door is slidable along the trackway and is driven by a fluid pressure operated actuator.

Abstract: Disclosed herein is a method for glueing corrugated board and an apparatus for carrying out the same, the method comprising: heating a starch glue to a predetermined temperature range by heat exchange; supplying the starch glue to a glue pan placed in a hot atmosphere of a heat-insulated space so as to maintain the glue in a heated state; feeding a corrugated core sheet and a liner into the heat-insulated space; applying the heated starch glue to ridge portions of the corrugated core sheet; and bonding together the corrugated core sheet and liner.

Abstract: A method of forming roof vent pipe enclosures in one piece, flexible, reinforced roof-covering membranes provides a cylindrical, open ended tube of a membrane material which is heat weldable and a tube base of like heat weldable material which has an opening of a diameter to snugly accommodate the base of the vent pipe. The tube is fitted over the end of a template which is of a greater diameter than the opening and the template is projected through the opening to fold the marginal edge section of material surrounding the opening generally in an axial direction while stretching it radially, and at the same time drawing the one end of the tube down further on the template to radially stretch it so that it is disposed in lapped engagement with the marginal edge section of material.

Abstract: A rapid-start fluorescent lamp includes a circuit breaker having a sealed glass bottle, a pair of electrical conductors sealed therein and passing therethrough and a thermally sensitive bimetal switch within the glass bottle with the bimetal switch having a pair of leg portions of unequal length.

Abstract: Uniform lengths of elastic tape are secured to a continuously advancing mrial web, for example, to make baby diapers. First an intermittently advancing tape is repeatedly gathered, for example, by laying tape sections into a depression of defined dimensions, to relieve the tape sections of any stretching. This assures tape sections of uniform length which are then stretched, cut and applied to the material web, for example, by an adhesive bonding. The apparatus used for performing these steps has several cooperating rollers of which the first has the depressions in its surface and is rotated intermittently while the second roller is rotated continuously. The spacings between neighboring tape sections bonded to the web preferably have a uniform length.

Abstract: In an ionization chamber detector of the type in which a plurality of flat anode and cathode electrodes are alternately arranged in a predetermined gaseous medium, this invention provides a method of producing an ionization chamber detector which is characterized in that a plurality of ditches having a width a little bit greater than the thickness of the electrodes are formed on the inner surfaces of a pair of insulators disposed in the spaced-apart relation for supporting and fixing the anode and cathode electrodes, an adhesive is applied in advance temporarily in a rectangular form to both or one surface of each electrode at those positions which are set back by a distance corresponding to the thickness of the electrodes from both edge portions, another adhesive having a low viscosity is charged from the end portions of the ditches into the gaps between the electrodes and the ditch walls after the electrodes are inserted into the ditches, and the tentative adhesive and the adhesive having a low viscosity ar

Abstract: Dry etching is carried out in such a manner that a periodical potential is applied to an electrode having a workpiece thereon, the above potential changes substantially linearly at a first part of each period and has a reverse polarity at a second part of each period, the linear change of potential at the first part compensates for a change in surface potential of the workpiece to keep constant an ion accelerating voltage between a plasma and the surface of the workpiece, and the potential of the reverse polarity at the second part allows charged particle of the reverse polarity to impinge on the workpiece, thereby neutralizing the electric charge on the surface of the workpiece. Accordingly, the energy of ion incident on the workpiece is distributed in a narrow range around a desired value, and thus an etching rate and a selection ratio can be improved.

Abstract: A single facer comprising plural means for corrugating and pasting sheet medium and a pressure roll, characterized in that each pair of upper and lower corrugating rolls are capable of being moved so that the lower corrugating roll may be brought into contact with the pressure roll.

Abstract: A method and related fixtures are disclosed which permit formation of stacks of thin circuitry-carrying layers. The layers terminate in an access plane having a two dimensional array of closely-spaced electrical leads. The method includes the steps of measuring the thickness of separate chips, selecting groups of chips having appropriate thicknesses, applying appropriate amounts of epoxy between adjacent chips, aligning the chips (and their electrical leads) in the direction parallel to their planes (i.e., the X-axis), and closing the cavity with an end wall which (a) exerts pressure on the stacked chips and epoxy in a direction perpendicular to the chip planes, and (b) establishes a fixed height of the stack in order to align the leads in the Y-axis. The final fixture provides a fixed-size cavity for confining the layers during curing of thermo-setting adhesive which has been applied between each adjacent pair of layers.

Abstract: Discloses an improved tool and method for cutting material by expelling a jet stream of liquid chemical reactant into forceful flowing connection and chemical reaction with a designated area of the material. Applies a force to at least one mass of reactant to move the mass through at least one jet orifice into flowing connection with material to be cut. Improvement is provision of a double rupture membrane adapted to confine the reactant mass until force is applied.

Abstract: A method of manufacture of pressure hose is described. An uncured tubular structure including one or more sub-units each having a radially inner tubular layer of uncured elastomer and an outer tubular layer of filamentary reinforcing elements is subjected to fluid pressure in its bore. The fluid pressure forces uncured elastomer material into the interstices of the filamentary layer of each sub-unit and consolidates the uncured structure. A cover layer of elastomer material is thereafter applied and the covered structure is cured into an integral hose.

Abstract: A process for fabricating silicon-on-insulator structures on semiconductor wafers and planarizing the topology of the patterns formed from the silicon. In the composite, the process provides for the formation of monocrystalline silicon islands electrically isolated by dielectric in substantially coplanar arrangement with surrounding dielectric. According to one practice of the process, substrate silicon islands are initially formed and capped, and thereafter used as masks to direct the anisotropic etch of the silicon substrate to regions between the islands. During the oxidation which follows, the capped and effectively elevated silicon islands are electrically isolated from the substrate by lateral oxidation through the silicon walls exposed during the preceding etch step. The capped regions, however, remain substantially unaffected during the oxidation. With the electrically isolated silicon island in place, a silicon dioxide layer and a planarizing polymer layer are deposited over the wafer.

Abstract: A pneumatic deicer and a method for making such deicer having a plurality of inflatable tubes which are capable of being distended by inflation to break up the accumulation of ice. The tubes are constructed with a nonflowing elastomeric compound leaving a passageway therein after vulcanization of the deicer by external heat.

Abstract: An end portion of an elongate member of generally cylindrical form, such as an optical fiber, is placed in a predetermined position utilizing a substrate having a surface that is defined by a generatrix that is a straight line, e.g. a flat surface. A foil of flexible material is secured to the surface of the substrate and defines with the substrate a generally straight, elongate passageway that is parallel to the generatrix of the surface and has a first portion of substantially uniform cross-section adapted to receive an end of the elongate member in closely fitting relationship and also has a second portion that tapers towards the first portion. The end portion of the elongate member is inserted into the first portion of the passageway by way of the second portion thereof.

Abstract: A method of making trenches having substantially vertical sidewalls in a silicon substrate using a three level mask comprising a thick photoresist layer, a silicon nitride layer and a thin photoresist layer. Openings are formed in the thin photoresist layer and silicon nitride layer by reactive ion etching in CF.sub.4. The openings are continued through the thick photoresist by etching in an atmosphere containing oxygen. The exposed surface of the silicon substrate is then etched in a CF.sub.4 atmosphere containing a low concentration of fluorine. Also disclosed is a method of making an electron beam transmission mask wherein the openings are made using the three level mask and reactive ion etching of silicon using the etching technique of the invention.

Abstract: A method of forming a connection part for polyolefin insulated electrical wires or cables is disclosed which comprises a cross-linkable reinforcing insulation layer around said connection part, providing around said reinforcing insulation layer a heat shrinkable tube consisting of an integrated assembly of a semiconductive layer and a specific insulated portion consisting of at least two cylindrical heat shrinkable semiconductive members in combination with each other through an insulation material, and then heating said tube under pressure to effect crosslinking of said reinforcing insulation layer and cause said reinforcing layer to become integrated with said heat shrinkable tube. A heat shrinkable tube for use in this method is also described.

Abstract: A single facer machine of the vacuum or fingerless type for making a corrugated paperboard laminate. A new means for applying vacuum to the paperboard on the second corrugator roll. The second corrugator roll is provided with axially spaced circumferential grooves, the grooves being deeper than the flutes on the roll. Each groove is provided with a vacuum finger, coupled to a source of vacuum, each vacuum finger being curved at its intake mouth which sealingly engages the sides of its respective groove to supply vacuum thereto. The angular extent of the curved intake mouth is supplementary to the angular extent of engagement of the corrugated paperboard with the second corrugator roll.

Abstract: A system for securing the unaffixed tail of a roll product to a convolution thereof underlying the tail with a flexible sealing element wherein a predetermined physical characteristic of the roll product is sensed and an appropriate sealing element such as a label is delivered to the roll product and applied thereto.

Abstract: A high-strength, coated cemented carbide product comprising a cemented carbide substrate and a fully dense alpha aluminum oxide coating on the substrate. The coating has a thickness of from 1-20 microns and is firmly and adherently bonded to the cemented carbide substrate through a thin intermediate nonmetallic layer .[.of an iron group metal aluminate.].. The coated product combines a wear resistance substantially as high as aluminum oxide cutting materials and a transverse rupture strength of at least 150,000 p.s.i. The coated product is prepared by passing water vapor, hydrogen gas and an aluminum halide over the substate at a temperature of from 900.degree.-1250.degree. C., the ratio of water vapor to hydrogen gas being between about 0.025 and 2.0.

Abstract: A high-strength, coated cemented carbide product comprising a cemented carbide substrate and a fully dense alpha aluminum oxide coating on the substrate. The coating has a thickness of from 1-20 microns and is firmly and adherently bonded to the cemented carbide substrate through a thin intermediate nonmetallic layer .[.of an iron group metal aluminate.].. The coated product combines a wear resistance substantially as high as aluminum oxide cutting materials and a transverse rupture strength of at least 150,000 p.s.i. The coated product is prepared by passing water vapor, hydrogen gas and an aluminum halide over the substrate at a temperature of from 900.degree.-1250.degree. C., the ratio of water vapor to hydrogen gas being between about 0.025 and 2.0.