Abstract: A method of sealing a workpiece comprising forming an inorganic film over a surface of a first substrate, arranging a workpiece to be protected between the first substrate and a second substrate wherein the inorganic film is in contact with the second substrate; and sealing the workpiece between the first and second substrates as a function of the composition of impurities in the first or second substrates and as a function of the composition of the inorganic film by locally heating the inorganic film with a predetermined laser radiation wavelength. The inorganic film, the first substrate, or the second substrate can be transmissive at approximately 420 nm to approximately 750 nm.

Abstract: The present invention discloses a vacuum glass sealing device. The device comprises an air extraction table, an upper pressing plate and a heating device, wherein the air extraction table is provided with an accommodating groove for placing glass plates to be sealed, the upper pressing plate is pressed on the glass plates to be sealed in the accommodating groove and air-tightly connected with the air extraction table around the periphery of the accommodating groove; and the air extraction table and/or the upper pressing plate are provided with air extraction ports, and the heating device heats the glass plates to be sealed from the exterior. The air extraction table and the upper pressing plate form a closed space in the sealing device, and the upper pressing plate is directly pressed on the glass plates to be sealed, so the volume of the closed space is greatly reduced, and conditions are created for quick vacuumizing of the closed space and quick sealing of the vacuum glass.

Abstract: Disclosed is a vacuum glass sealing method and a sealing device using the method. The sealing device comprises a bottom plate, an annular side wall, a cover plate, a partition plate and a heating device, wherein the lower end of the annular side wall (15) situated on the bottom plate and air-tightly connected with the bottom plate; the cover plate (15) air-tightly covered at the upper end of the annular side wall; the partition plate (15) arranged on the middle part of the height direction of the annular side wall; after the periphery of the partition plate (15) air-tightly connected with the inner surface of the annular side wall, the partition plate divides the space encircled by the bottom plate, the annular side wall and the cover plate into a first closed space and a second closed space; and the two closed spaces are provided with an air extraction port for vacuumizing respectively.

Abstract: The invention relates to a method and to a device for force-fit connecting glass-like components to metals, particularly for connecting a glass plate (2) to a large-scale mounting element (19) as a central connecting element, particularly made of metal, having the following characteristics: a) an input and control device (6) for inputting process data, b) a storage and positioning device (15) for supplying individual fastener elements (1) as support elements of a central connection element (20), c) having mounting and fixing means (3) for fixing a glass plate (2), d) a thickness measuring device (7) for measuring the thickness of each of the components to be connected and layers of the same, e) a measuring machine (8) for measuring the resonant frequency of the glass plate (2) and a surface sensor (10) for determining the roughness of the glass plate (2), f) a sliding device (11) for pressing together the components to be connected by means of an ultrasonic horn (4), g) a device for generating ultrasonics by

Abstract: A method for sealing the pump-out hole of vacuum glass comprises: first preparing metal layer which is bonded with the glass plate at the outside surface of the glass plate around the pump-out hole; and air-tightly welding the sealing element and the metal layer around the pump-out hole by metal brazing technology after pumping. A structure and a device for sealing the pump-out hole of vacuum glass are also provided. The method can seal the pump-out hole reliably and firmly; the sealing structure is stable and has long service life; the welding between the sealing element and the metal layer can be completed instantly and the properties of the glass materials will not be affected.

Abstract: The invention relates to a method and to a device for force-fit connecting glass-like components to metals, particularly for connecting a glass plate (2) to a large-scale mounting element (19) as a central connecting element, particularly made of metal, having the following characteristics: a) an input and control device (6) for inputting process data, b) a storage and positioning device (15) for supplying individual fastener elements (1) as support elements of a central connection element (20), c) having mounting and fixing means (3) for fixing a glass plate (2), d) a thickness measuring device (7) for measuring the thickness of each of the components to be connected and layers of the same, e) a measuring machine (8) for measuring the resonant frequency of the glass plate (2) and a surface sensor (10) for determining the roughness of the glass plate (2), f) a sliding device (11) for pressing together the components to be connected by means of an ultrasonic horn (4), g) a device for generating ultrasonics by

Abstract: A high concentration central receiver system and method provides improved reflectors and a unique heat removal system. The central receiver has a plurality of interconnected reflectors coupled to a tower structure at a predetermined height above ground for reflecting solar radiation. A plurality of concentrators are disposed between the reflectors and the ground such that the concentrators receive reflective solar radiation from the reflectors. The central receiver system further includes a heat removal system for removing heat from the reflectors and an area immediately adjacent the concentrators. Each reflector includes a mirror, a facet, and an adhesive compound. The adhesive compound is disposed between the mirror and the facet such that the mirror is fixed to the facet under a compressive stress.

Abstract: A method of providing a decorative metal pattern on an electrically non-conductive substrate, such as a glass or plastic substrate, which includes applying a mixture of heat fusible material, such as glass or plastic, with a metal having a particle size less than about 500 mesh constituting at least 50% of the mixture, to the substrate in the desired pattern, heating the so-applied mixture until the heat fusible material fuses and bonds to the substrate, cleaning the substrate with the pattern thereon, and a electroplating the pattern with the desired finish metal. In one method in which the mixture includes glass, a negative resist is adhesively secured to the substrate and the mixture is applied. The resist disintegrates upon heating. In another method, used when the substrate is plastic, a mixture of plastic and metal in past form is applied to the substrate by silk screening or pad printing to form the pattern.

Abstract: Metal collar device of the type used for integrating a glass part and a metal part of different coefficients of expansion. The collar is circular and comprises a first portion intended to be in contact with the metal part, a second portion intended to be in contact with the glass part and a bonding portion placed between said first and second portions. The second portion is not as thick as the first portion and as the bonding portion, so that it can adjust to the expansion of the glass part by exerting stresses on the latter below the limit of resistance of said glass part.

Abstract: A method of embedding a magnetically attractable member (25) in a ceramic material (1) and a system therefor wherein there are provided a magnetically attractable member and a ceramic member capable of being placed in a molten state. The magnetically attractable member is disposed over the ceramic member and the ceramic member is placed in a molten state. The magnetically attractable member is then disposed in the molten ceramic member by magnetic attraction and the molten ceramic member is then hardened around the magnetically attractable member. The magnetically attractable member is taken from the class consisting of Alloy 42 and Kovar. The ceramic member is preferably a glass. The ceramic member is preferably disposed on a semiconductor package and the magnetically attractable member is preferably at least a portion of a semiconductor lead frame.

Abstract: A method for the controlled bending of anodically bonded two-dimensional composites of glass and metal or semiconductor materials. The composite is heated after bonding, for up to 200 hours to a temperature of from 250.degree. C. to Tg-10 K. As a result of this heating, controlled compaction of the glass body and, hence, bending of the composite, are achieved to reduce or reverse any distortion that has occurred during bonding.

Abstract: A system for sealing a large diameter tube under vacuum including: a tube having a diameter greater than about 20 mm, a disk operatively positioned inside the tube and having a smaller diameter than the tube, a vacuum operatively connected to the tube, heating means, operatively positioned on the outside of the tube, for heating the tube to a temperature sufficient to collapse the tube onto the disk, means for positioning the disk inside the tube proximate the position of the heating means on the outside of the tube and means for cooling the tube proximate the disk sufficiently to formulate a seal between the tube and the disk where the disk collapsed onto the disk is disclosed.

Abstract: An apparatus for forming a glass product which comprises: a single glass gob feeding device for feeding a glass gob to a mold for forming a formed body; a press forming device for press forming the glass gob into the formed body of a predetermined shape; a formed body removing device; a plurality of carrier means on which the mold is loaded; and a transfer means for transferring and circulating the carrier means on which the mold is loaded in an order of the glass gob feeding device, the press forming device, the formed body removing device, and back to the glass gob feeding device; wherein, assuming a path is defined as a path for transferring and circulating the carrier means by the transfer means, a single path or a plurality of paths is or are provided for the single glass gob feeding device.

Abstract: One method of the present invention provides a method of connecting a flange to a cylinder. This method includes securing the cylinder in a first chuck of a lathe and securing the flange in a second chuck of the lathe. The method also includes rotating the first and second chuck such that the cylinder and flange are rotated while bringing an end of the cylinder and the flange in proximity of a heating element associated with the lathe contemporaneously with the rotating step. Finally, there is the step of bringing the end of the cylinder in contact with the flange. Novel apparatus consistent with the present invention are also disclosed.

Abstract: The invention relates to a device for producing essentially cone-shaped flat bodies, whose surface area consists of n attached segments, (preferably 4, 6, 8), each composed of a number of attached glass pieces connected to one another, particularly Tiffany-style lampshades, whereby the boundary lines of adjoining segments lie in a common plane or a straight line, having a base body or form cone for placing glass pieces to be soldered, a bottom plate placed at the form cone and a rod, that is positioned in the middle of the bottom plate and form cone.

Abstract: A thermal print head having a base, a glass glaze layer formed on the base by electrically-heated welding, and heating elements formed on the glass glaze layer. A manufacturing method of a thermal print head uses a furnace to accommodate molten glass and a pair of opposed electrodes disposed within the furnace to melt the glass by flowing the current. The method comprises the steps of supplying electric power across the electrodes to cause electric current to flow through glass so as to melt glass, passing an elongated base through the molten glass accommodated in the furnace to form a glass glaze layer on the base, and forming heating elements on the glass glaze layer.

Abstract: The method seals optical windows in explosive initiators so that the resulting seal remains undamaged by exposure to about - 320.degree.-840.degree. F. and pressures up to 26000 psi. The method includes disposing a solid body optical window of quartz or silica glass or the like in a passageway in a wall of an explosive initiator body of metal, ceramic or the like. The optical window is dimensioned relative to the passageway so that an annular space is provided between the outer periphery of the optical window and the passageway wall. This annular space is filled with solder glass, in powdered or solid body or slurry form. Preferably, the solder glass is a ring which closely fits around the optical window. The resulting sub-assembly preferably abuts a shelf in the passageway formed between two contiguous portions of the passageway with different diameters, the sub-assembly being in the larger portion.

Abstract: A single-step process is disclosed for hermetically sealing a glass to a metal having similar coefficients of thermal expansion without carrying out the conventional pretreatment steps of decarburization and oxidization by heating to at least the melting point of the glass in an atmosphere containing from about 0.5 to 2.5 volume percent of water vapor, 0 to about 5 volume percent of hydrogen gas and the balance an inert gas, such as nitrogen.

Abstract: Apparatus for forming glass to metal hermetic seals in a terminal assembly of a housing part wherein an upwardly directed glass melting heating gradient is applied to a housing part having a glass sleeved terminal pin supportedly disposed in an aperture therein with sufficient heat intensity to flow the glass sleeve in an upwardly direction from bottom to top to fuse the terminal pin in the housing part with minimal voids.

Abstract: An apparatus is described for filling notches in a notched workpiece with a soft filler material having a viscosity similar to glasses. The apparatus has a bottom portion which receives the notched workpiece and a top portion. The top portion has a lower surface adapted to apply a concentrated pressure in the direction of the bottom portion to enhance flow of the soft filler material into the notches when that material is inserted between the assembled top and bottom portions.

Abstract: A rugged scintillation detector uses a hermetically sealed window assembly welded or otherwise bonded to the detector housing. A method and apparatus useful in forming a reproducible hermetic seal between the glass and an annular metal retaining ring is described. The glass and ring are chosen so that the ring diameter is slightly larger than that of the glass at room temperature. A thin layer of frit at the interface ensures a very tight mechanical seal, and a surface layer of chromium oxide on the ring ensures a secure chemical bond. The assembly device uses pressure and counterpressure to uniformly and reproducibly assemble the glass window into the retainer ring at elevated temperatures.

Abstract: Described is a fixture for glass-bonding a digital magnetic recording slider workpiece (the component parts thereof), while holding them carefully aligned. In one preferred embodiment this fixture includes a slot for receiving a number of such work pieces in pre-assembled form registering and aligning them together and providing retainer means individually for each work piece adapted to resiliently and selectively engage each work piece and hold it positively in careful precise alignment while glass bonding and related operations carried out on the array of multiple work pieces so-aligned and retained.

Abstract: A method and apparatus for assembling and fusing glass to metal in a glass-metal electrical component is disclosed. The component includes a metallic shell formed with upper and lower cylindrical recesses connected together by longitudinal passages, a pair of metal rings and plural metal pins assembled to define electrical feed-throughs. The component parts are assembled on a fixture having a sleeve-like projection and a central mounting projection establishing concentric nesting surfaces to which the metal rings are slip-fitted in concentric alignment with each other spaced from sidewalls of the lower recess. The pins are in electrical contact with the metal rings. A glass pre-form is seated within the upper recess. The assembled structure is heated to a temperature sufficient to melt the glass pre-form which flows under gravity through the passages into the lower recess to provide an insulative seal between the metal parts.

Abstract: A cathode ray tube (1) having a body (3) of glass material and a faceplate (5) of solid phosphor material. The body (3) and faceplate (5) are sealed together by a sealant (15) of malleable halide material--for example silver chloride, or lead-silver chloride eutectic. Sealing is effected by inserting a ring (15) of sealant material between abutting surfaces of the body (3) and the faceplate (5), heating in vacuum to above the melting point of the sealant, and cooling to allow the sealant to solidify. The faceplate (5) may be of single crystal material--e.g. zinc tungstate or calcium borate, or may be of hot pressed solid material--e.g. zinc yttrium silicate.

Abstract: An apparatus for sealing a wafer in the neck of a CRT has two groups of burners, one group provides the optimum temperature for sealing, the other group provides the optimum temperature for cutting off the cullet. The burners are arranged in an arc with the outer burners performing the cutting off operation and the inner burners performing the sealing operation.

Abstract: A lamp comprising a tubular quartz envelope having a mounting base compression fitted to one end thereof.

Abstract: A hermetic seal for an optical fiber is fabricated by casting or molding a mass of fusible alloy around the fiber so that the alloy solidifies within a confined space. The alloy used is characterized by low thermal coefficient of expansion, minimal relaxation after solidification, and appreciable expansion as it solidifies, thereby to create a stable pressure contact at its interface with the optical fiber. The solidified mass may be subsequently soldered into a passage through a wall of a fiber optic device package. Alternatively, the mold within which the mass of alloy is encased or molded may, itself, be soldered into the passage.

Abstract: A holder (55) for supporting in alignment a plurality of spaced electrodes (18) and (19) to be sealed into a corresponding plurality of envelopes (14) includes a metal base (82) which supports a stripper plate (87). A plurality of posts (36) extend from the base (82) through a plurality of seats (86) in the stripper plate. In preparation for a mass sealing operation the envelopes (14) are placed onto the seats (86) and a pair of the electrodes (18) and (19) are attached to the end of each of the posts (36). A graphite heater plate (61) having a plurality of apertures (72) is joined with the base plate (82) such that the apertures rest in concentric alignment about upper ends of the envelopes (14). An upper weight plate (92) rests on the heater plate (61) to bring weighted guide caps (46) into contact with the electrodes (18) and (19).

Abstract: A beading apparatus for an electron gun assembly having a plurality of self-indexing insulating support rods with a plurality of indexing cavities formed in a surface thereof comprises at least two bead blocks. Each of the bead blocks has a beading support surface with a plurality of apertures formed therein. An indexing pin is disposed in each of the apertures. Each of the indexing pins has a reference end which extends beyond the beading support surface and projects into the indexing cavities of the insulating support rods. A vacuum is applied to the support rods to retain the support rods in contact with the indexing pins. In a second embodiment a support foot is used in conjunction with the vacuum to retain the support rods in contact with the indexing pins.

Abstract: A method and apparatus for press sealing a tubular quartz arc tube body section about a ribbon-type metallic seal. The method includes applying different intensities of heat to the quartz arc tube body section to be pressed in such a manner that four portions of the quartz arc tube body section which are located within diametrically opposed quadrant sections are heated to a higher softened-state temperature than those portions of the heated quartz arc tube body which are positioned intermediate the higher-heated quartz arc tube body portions, with the higher-heated quartz arc tube body portions collapsing somewhat due to the surface tension of the softened quartz. Utilizing this method results in an improved press seal.

Abstract: A method is described for continuously producing very small diameter metal wire from molten material, comprising at least one heating stage for heating in a first predetermined position a glass tube in which a wire of metal material is disposed, these being fed in the direction of their longitudinal axis in such a manner as to cause said glass to soften to a required viscosity and said material to melt in order to form a wire, and a cooling stage for cooling, in a second predetermined position, said wire on which a required traction is exerted; the method is characterised in that said second predetermined position, in which said wire cooling stage is carried out, is located, with respect to said first position, at such a location along the wire axis that solidification of said material takes place in a section situated not before the limiting section at which the reduction in cross-section of said wire terminates, the quantity of heat removed during said cooling stage being sufficiently high to prevent soften

Abstract: Apparatus for glazing bases of electric bulbs comprising a number of combined tools on the circumference of a continuously rotating rotor, the combined tools consisting of coaxially arranged upper and lower parts, a mold being formed by the lower part. The apparatus includes means for feeding molten glass and for pressing it by the upper part, means for checking the presence of base sleeves and contacts at the working station, and means for removing excess glass in the course of the pressing operation. The apparatus includes means for ejecting a sleeve from the lower part of any tool which does not contain a contact, and means for preventing the feeding of glass to any tool which does not contain a sleeve.

Abstract: An apparatus for making cathode ray tube screens with contoured fixtures comprises an automatic press having a rotary table with moulds radially fixed thereto, as well as a mechanism for moulding the fixtures. This mechanism has a vertically and horizontally displaceable frame carrying heaters and male dies. In operation, the frame is introduced into the mould with a screen blank and then is placed, in turn, in two locked positions in which the screen boards heating and fixture moulding, respectively, are effected.

Abstract: Apparatus for manufacturing lamp envelopes for axial-geometry incandescent lamps comprises a plurality of magazines for receiving stacks of lamp envelope components and a transport moveable with respect to the magazines and having component-receiving platforms alignable with ends of the magazines. The platforms are supported on rotatable hubs and the hubs have axial bores through which components are pushed onto the platforms by pusher means. The hubs are supported at one end of a transport arm, the other end of the arm being supported for pivotal movement about an axis parallel to the axis of rotation of the hubs so that the transport arm may be moved relative to the magazines. An arrangement of holding magnets and spring-biased slotted plates associated with the platforms controls the holding and release of components.

Abstract: The invention relates to a method of manufacturing a percussion flashlamp in which a metal tube which is closed at one end is sealed to a piece of cylindrical tube glass, during which sealing operation the metal tube is supported by a pin which projects through the tube glass into the metal tube and which holds the closed end of the metal tube above the tube glass.

Abstract: A vapor shield supporting ring is attached to the envelope of a vacuum device. The supporting ring is embedded in the inner wall of the envelope and extends into the interior of such envelope. A welding flange is mounted on the interior portion of the ring. The ring does not extend to the exterior wall of the envelope. To embed the ring in the envelope, the ring is suspended by a holding means such as a magnet, which is placed into the desired position within a centrifugal mold. The molten glass is poured into the mold and the mold is spun, thereby flowing the glass along the walls and surrounding the outer portion of the supporting ring. When the glass solidifies, the supporting ring is firmly embedded in the wall of the envelope.

Abstract: A method of inserting and sealing an end of an aperture mask support pin into the glass of a viewing panel for a cathode ray or television picture tube by heating the pin to the softening point temperature of the glass by use of a substantially flat or pancake type high frequency induction coil and an associated iron core. The iron core may be enclosed in a leak-proof jacket for supplying a coolant to the core for cooling thereof.