Abstract: A link apparatus includes a cam plate, a lever and an accommodation member. The cam plate has a cam groove. The lever has a roller engaged with the cam groove and a pin which is inserted through a center of the roller so that the roller is rotatably supported on the pin. The accommodation member accommodates the cam plate and the lever. The accommodation member and the pin have a distance “A” therebetween. The roller has a thickness “B” along an axial direction of the pin. The value of the distance “A” is smaller than the value of the thickness “B”.

Abstract: Disclosed are a vacuum glass panel and a manufacturing method of the same. The vacuum glass panel according to the present invention includes a first glass plate, a second glass plate facing the first glass plate with a vacuum space therebetween, an edge of the second glass plate being in contact with the first glass plate, and a plurality of spacers disposed between the first glass plate and the second glass plates to separate the first glass plate and the second glass plate from each other. The plurality of spacers are formed of a glass including alumina (Al2O3) particles and silica (SiO2) particles.

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 invention provides a manufacturing method of a glass-sealed package, and a glass substrate used for the glass-sealed package, whereby an amount of warp in a glass substrate is reduced to improve processing accuracy in a subsequent step in which the glass substrate is combined (such as by anodic bonding) with another glass substrate provided with a thin film. The front side of the glass substrate includes a region where the cavities used to house electronic devices such as semiconductor IC chips and crystal blanks are not formed. The region devoid of the cavities is provided in the formed of a frame to reduce an amount of warp in the glass substrate.

Abstract: A mask for laser sealing a temperature and environmentally sensitive element, such as an OLED device, surrounded by a frit wall between first and second substrates. The mask is opaque and has a transparent elongate transmission region. The width of the transmission region may be substantially equal to the width of the frit wall. A strip of opaque mask material extends approximately along a longitudinal center line of the elongate transmission region. The mask is located between a laser and the first or second substrate. The laser emits a generally circular beam having a diameter that is larger than the width of the frit wall and is directed through the transmission region in the mask, such that opaque portions of the mask block portions the laser beam and the transparent transmission region allows a portion of the laser beam to pass through the mask and impinge upon the frit wall to melt the frit wall, thereby joining the first and second substrates and hermetically sealing the element therebetween.

Abstract: To provide a process for producing a glass member provided with a sealing material layer, capable of favorably forming a sealing material layer even in a case where the entire glass substrate cannot be heated. A sealing material paste prepared by mixing a sealing material containing a sealing glass and a laser absorbent with an organic binder is applied to a sealing region of a glass substrate 2 in the form of a frame. The frame-form coating layer 8 of the sealing material paste is selectively heated by irradiation with a laser light 9 along the coating layer 8 to fire the sealing material while the organic binder in the coating layer 8 is burnt out to form a sealing material layer 7. Using such a sealing material layer 7, a space between two glass substrates is sealed.

Abstract: A mask for laser sealing a temperature and environmentally sensitive element, such as an OLED device, surrounded by a frit wall between first and second substrates. The mask is opaque and has a transparent elongate transmission region. The width of the transmission region may be substantially equal to the width of the frit wall. A strip of opaque mask material extends approximately along a longitudinal center line of the elongate transmission region. The mask is located between a laser and the first or second substrate. The laser emits a generally circular beam having a diameter that is larger than the width of the frit wall and is directed through the transmission region in the mask, such that opaque portions of the mask block portions the laser beam and the transparent transmission region allows a portion of the laser beam to pass through the mask and impinge upon the frit wall to melt the frit wall, thereby joining the first and second substrates and hermetically sealing the element therebetween.

Abstract: A method of manufacturing a light-emitting device includes arranging a plate-shaped glass on a light-emitting element mounting surface of a substrate having a light-emitting element mounted thereon, arranging a metal thin plate on the plate-shaped glass so as to sandwich the plate-shaped glass between the substrate and the metal thin plate, placing the substrate, the plate-shaped glass and the metal thin plate between a first mold on a side of the substrate and a second mold on a side of the metal thin plate, hot-pressing the substrate, the plate-shaped glass and the metal thin plate by using the first mold and the second mold to seal the light-emitting element with the plate-shaped glass, and after cooling the plate-shaped glass, removing the thin plate adhered to the plate-shaped glass from the plate-shaped glass.

Abstract: A method of calculating node potentials in a network including current flow nodes on wirings with high precision at high speed is provided. Provided are a drive method of making voltages applied to electron-emitting devices uniform using the calculating method and an apparatus for manufacturing an image display apparatus including the electron-emitting devices. Assume that n nodes are located between one end of a wiring in which a potential DL is set and the other end of the wiring in which a potential DR is set. At a j-th node counted from the one end, when a current value flowing therefrom is Ij, a node potential is Vj, resistance elements between a terminal and a node and between adjacent nodes are R0 to Rn+1, and a resistance between both end of the wiring is Rall, the node potential Vj is calculated by the following expression.

Abstract: A mask for laser sealing a temperature and environmentally sensitive element, such as an OLED device, surrounded by a frit wall between first and second substrates. The mask is opaque and has a transparent elongate transmission region. The width of the transmission region may be substantially equal to the width of the frit wall. A strip of opaque mask material extends approximately along a longitudinal center line of the elongate transmission region. The mask is located between a laser and the first or second substrate. The laser emits a generally circular beam having a diameter that is larger than the width of the frit wall and is directed through the transmission region in the mask, such that opaque portions of the mask block portions the laser beam and the transparent transmission region allows a portion of the laser beam to pass through the mask and impinge upon the frit wall to melt the frit wall, thereby joining the first and second substrates and hermetically sealing the element therebetween.

Abstract: A method for bonding an electrically conductive silicon carbide structure to an electrically conductive siliconized silicon carbide structure by temporarily securing the siliconized silicon carbide structure to the silicon carbide structure; placing the silicon carbide structure with secured siliconized silicon carbide structure into an induction heating furnace having an induction coil which heats electrically conductive material in the furnace when sufficient electrical power at a frequency of from about 300 to about 1000 KC is passed through the coil; and causing sufficient electrical power at a frequency of from about 300 to about 1000 KC to be passed through the coil to raise the temperature of the siliconized silicon carbide structure and silicon carbide structure to a temperature above about 1500° C.

Abstract: In joining the end portions of belt-shaped glass sheets, the end portions of belt-shaped glass sheets are thermally softened after the end portions are located so that they overlap each other within the range of the glass sheet width. Lap portions of the thermally softened end portions are clamped at least once from both sides in the thickness direction of the belt-shaped glass sheets by means of pressure dies. Thus, the lap portions are joined together to be adjusted to the thickness of the belt-shaped glass sheets.

Abstract: An apparatus is proposed for manufacturing a syringe, which has a syringe body composed of glass and a hollow needle, for medical purposes, and is characterized by a laser beam generating device (3) having a laser generator (5) for producing a laser beam (9), a beam forming and/or guidance device (7), and by a holding device (17) for holding and positioning the syringe body (13).

Abstract: A conveyor belt including a series of predefined sections and elevated support structures at the edges of each section for supporting items on the belt above the belt at each section.

Abstract: A cathode-ray tube includes a glass envelope having a panel with an inner surface formed with a phosphor screen, and a cylindrical neck extending substantially coaxially with a tube axis. An electron gun is arranged in the neck, and a stem is welded to an end of the neck. The stem has a substantially circular disk-like flare made of glass and having an outer peripheral portion welded to the end of the neck, and a plurality of stem pins attached to the flare. The end of the neck and the flare of the stem are welded to each other such that a glass portion of the flare surrounds a glass portion of the end of the neck from outside.

Abstract: A method for bonding an electrically conductive silicon carbide structure to an electrically conductive siliconized silicon carbide structure by temporarily securing the siliconized silicon carbide structure to the silicon carbide structure; placing the silicon carbide structure with secured siliconized silicon carbide structure into an induction heating furnace having an induction coil which heats electrically conductive material in the furnace when sufficient electrical power at a frequency of from about 300 to about 1000 KC is passed through the coil; and causing sufficient electrical power at a frequency of from about 300 to about 1000 KC to be passed through the coil to raise the temperature of the siliconized silicon carbide structure and silicon carbide structure to a temperature above about 1500° C.

Abstract: The invention relates to a discharge lamp with a discharge vessel of silica glass which has a higher operating pressure than atmospheric pressure, where the high temperature viscosity (VA) in the outer surface area of the arc tube portion of the discharge vessel is lower than the high temperature viscosity (VB) at a depth of 100 microns from the outer surface of the arc tube portion. Since the high temperature viscosity (VA) in the outer surface area of the arc tube portion of the discharge vessel is lower than the high temperature viscosity (VB) at a depth of 100 microns from the outer surface of the arc tube portion, formation of thermal distortion in the vicinity of the outer surface of the arc tube portion can be suppressed. This prevents the discharge vessel from being damaged or from breaking by thermal distortion even after operation for a long time.

Abstract: A method for manufacturing a fluorescent lamp that can achieve stable luminous characteristics and discharge characteristics and also does not suffer from cracks in the interconnected portion of the glass tubes while handling or lighting the fluorescent lamp is provided. Interconnecting portions located in the vicinity of open end portions of glass tubes that are positioned adjacent to each other are heated respectively from inside to form a welding portion, and then, the glass tubes are thrust against each other and thinned by conducting a preliminary tapping of the welding portion from inside using hammers. Next, the welding portion is opened by conducting a main tapping to form an interconnected portion, and end portions in the vicinity of the interconnected portion are closed by heating and melting, and then the end portions are molded.

Abstract: An assembly of rib structures sandwiched between a dielectric glass layer and a glass substrate for use in a flat panel display, such as plasma addressed liquid crystal (PALC) displays, is formed by a number of methods. One method includes molding thermoplastic glass frit containing paste into rib structures, transferring the rib structures to a thin transparent layer of a thermoplastic dielectric glass frit containing composition on a drum, and transferring the rib structures with the thin transparent dielectric glass layer to a glass substrate having metallic electrodes already formed thereon.

Abstract: In a sealing apparatus used in a process for sealing a glass tube-assembly of a flat-type cathode-ray tube by frits, three of a front panel, a screen panel and a funnel can be sealed together, and the front panel can be prevented from being broken. The sealing apparatus includes a frame for properly positioning a combined assembly in which the front panel, the screen panel and the funnel are butted with each other by frits and the following sealing jig(41) The sealing jig(41) includes a holding means(42) for holding a front panel(2) and a screen panel (3) under the condition that joint surfaces of the front panel and the screen panel are butted with each other by frits The holding means(42) is provided with a first resilient member(43) which is urged against the outer surface of the front panel(2) and a second resilient member (42) which is urged against the outer surface of the screen panel(3).

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: An assembly of rib structures sandwiched between a dielectric glass layer and a glass substrate for use in a flat panel display, such as plasma addressed liquid crystal (PALC) displays, is formed by a number of methods. One method includes molding thermoplastic glass frit containing paste into rib structures, transferring the rib structures to a thin transparent layer of a thermoplastic dielectric glass frit containing composition on a drum, and transferring the rib structures with the thin transparent dielectric glass layer to a glass substrate having metallic electrodes already formed thereon.

Abstract: An improved apparatus and method for vacuum fusion bonding of large, patterned glass plates. One or both glass plates are patterned with etched features such as microstructure capillaries and a vacuum pumpout moat, with one plate having at least one hole therethrough for communication with a vacuum pumpout fixture. High accuracy alignment of the plates is accomplished by a temporary clamping fixture until the start of the fusion bonding heat cycle. A complete, void-free fusion bond of seamless, full-strength quality is obtained through the plates; because the glass is heated well into its softening point and because of a large, distributed force that is developed that presses the two plates together from the difference in pressure between the furnace ambient (high pressure) and the channeling and microstructures in the plates (low pressure) due to the vacuum drawn.

Abstract: An improved vacuum fusion bonding structure and process for aligned bonding of large area glass plates, patterned with microchannels and access holes and slots, for elevated glass fusion temperatures. Vacuum pumpout of all components is through the bottom platform which yields an untouched, defect free top surface which greatly improves optical access through this smooth surface. Also, a completely non-adherent interlayer, such as graphite, with alignment and location features is located between the main steel platform and the glass plate pair, which makes large improvements in quality, yield, and ease of use, and enables aligned bonding of very large glass structures.

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: An improved apparatus and method for vacuum fusion bonding of large, patterned glass plates. One or both glass plates are patterned with etched features such as microstructure capillaries and a vacuum pumpout moat, with one plate having at least one hole therethrough for communication with a vacuum pumpout fixture. High accuracy alignment of the plates is accomplished by a temporary clamping fixture until the start of the fusion bonding heat cycle. A complete, void-free fusion bond of seamless, full-strength quality is obtained through the plates; because the glass is heated well into its softening point and because of a large, distributed force that is developed that presses the two plates together from the difference in pressure between the furnace ambient (high pressure) and the channeling and microstructures in the plates (low pressure) due to the vacuum drawn.

Abstract: An improved vacuum fusion bonding structure and process for aligned bonding of large area glass plates, patterned with microchannels and access holes and slots, for elevated glass fusion temperatures. Vacuum pumpout of all the components is through the bottom platform which yields an untouched, defect free top surface which greatly improves optical access through this smooth surface. Also, a completely non-adherent interlayer, such as graphite, with alignment and location features is located between the main steel platform and the glass plate pair, which makes large improvements in quality, yield, and ease of use, and enables aligned bonding of very large glass structures.

Abstract: A flat glass panel 1 for a picture display device of the flat type, is formed by two glass cover plates (3, 5) with at least one glass plate (4, 4', 4", . . . ) between them, and a vitreous frit (8) between the cover plates along the outer edges of the cover plates so as to obtain a box-type glass panel in which a channel structure is present. After heating to the melting temperature of the frit (8), the panel is cooled down to a transitional temperature of the frit, while the space between the cover plates is partly exhausted during the cooling-down phase at a temperature which lies between the melting temperature and the transitional temperature of the frit. Then the temperature is kept constant at approximately the transitional temperature until the frit has become undeformable, said space (13) between the cover plates (3, 5) being fully evacuated then. Finally, cooling-down continues to room temperature, and the space (13) inside the panel is hermetically sealed off.

Abstract: The present provides a method for making glass pressure sensors in batch. First glass plates of appropriate dimensions are scribed. Then electrodes are sputters onto each of the plates, followed by screen printing a frit layer and crossover tabs. The plates are then preglazed and bonded together to form a plurality of sensors. The plates are then scribed and broken along the scribes to form individual sensors.

Abstract: An apparatus for manufacturing a chamber, the chamber including first and second glass substrates and an enclosure arranged between the substrates or an enclosure and at least one spacer arranged between the substrates. The apparatus includes a pair of heating plates, having heaters therein, for holding the glass substrates, a temperature controller for controlling the temperature of the heaters, a position alignment device for moving at least one of the pair of heating plates in X-, Y-, and .theta.

Abstract: A method of manufacturing an image display apparatus, which has a first substrate on which an electron emission element is arranged, a second substrate on which a phosphor that forms an image upon irradiation of an electron emitted by the electron emission element is arranged, and an enclosure which is bonded to the first and second substrates to hold a gap between the first and second substrates, has the steps of applying a bonding agent to bonding portions between the first and second substrates, and the enclosure, heating to a temperature equal to or more than the softening temperature of the bonding agent, detecting the solidification state of the bonding agent, performing position alignment between the first and second substrates during the interval after the bonding agent softens until the bonding agent solidifies, bonding the first and second substrates via the enclosure by compressing the first substrate and/or the second substrate, and releasing the compression force to the first substrate and/or the

Abstract: Multiple fold, single tube glass vessels, as well as a process and device for producing multiple fold, single tube glass vessels. An even number of parallel glass tubes open at both ends are assembled under the influence of heat into a multiple fold, single tube glass vessel that is characterized by an essentially constant wall thickness and by an essentially constant inside diameter. The object of the invention is to produce multiple fold, single tube glass vessels suitable in particular as discharge vessels for compact lamps.

Abstract: A bundle of multiglass fibers are assembled within an outer glass tube. An intermediate glass structure is interposed between the bundle of multifibers and the outer glass tube. The intermediate glass structure has a softening temperature within the range of minus 5% and plus 15% of the softening temperature of the multifibers and less than the softening temperature of the outer glass tube. The assembly is heated and the outer glass tube is pressurized from the outside to produce a uniform compressive force for fusing the multifibers and the intermediate glass structure around the multifibers. The intermediate glass structure may include a glass tube, multiple layers of glass fibers or an inner layer of glass fibers surrounded by a glass tube.

Abstract: An improved design and method and of manufacturing a luminous tube electrode comprises the steps of placing an electrode shell in an outer tube and allowing conductors connected to the electrode shell to emanate from an open end of the outer tube. A tubulation with a flared end is then butted up against the end of the outer tube, thereby sandwiching the conductors between the flared end of the tubulation and the outer tube. The flared end of the tubulation are then fused to one another forming a hermetic seal between each other and the conductors, resulting in the finished electrode. A further provision is made to blow a bubble in the tubulation.

Abstract: A fiber optic polarization maintaining apparatus for use in fabrication of fused optical couplers, where the fused optical couplers include first and second optical fibers. The apparatus includes apparatus for holding the first and second optical fibers in a first predetermined alignment where the first and second fibers each include a stripped portion and where the stripped portions are held in contact along their length. Apparatus for heating the first and second optical fibers are located adjacent the holding apparatus wherein the heating apparatus is brushed across the length of the first and second fibers so as to oscillate across the fibers in an amplitude varied in an ever decreasing stepped manner until fusion of the fibers is complete.

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: Anti-veiling-glare glass input window for an optical device. The window has throughout a shallow surface layer over its peripheral surfaces radiation absorbent free-metal-induced color centers. A method for preparation of such a window, which is particularly suited to be used as an input window for an image intensifier, involves preshaping the window from a clear glass and forming color centers in a shallow surface layer over at least the peripheral surfaces of the window. If the clear glass contains reduceable metal oxides the color centers are formed by subjecting at least the peripheral surfaces of the clear glass to a reducing atmosphere at a temperature high enough to cause the reducing atmospheres reducing component to diffuse into a shallow surface layer of the window and to reduce the metal oxides to free metal atoms.

Abstract: In a method of manufacturing a semiconductor device, at least a support body (1) and a monocrystalline semiconductor body (2) are provided with at least one flat optically smooth surface obtained by means of bulk-reducing polishing (mirror polishing), while at least the semiconductor body is provided at the optically smooth surface with an oxide layer (3). The two bodies (1 and 2) are brought into contact with each other in a dust-free atmosphere after their flat surfaces have been cleaned in order to obtain a mechanical connection. Before the bodies are brought into contact with each other, at least the oxide layer (3) on the semiconductor body (2) is subjected to a bonding-activating operation, while after a connection has been formed between the surfaces, radiation (5) of a laser is focused on the connection surface of the two bodies and material of at least the semiconductor body is molten locally near the connection surface by means of the laser radiation.

Abstract: A method for manufacturing a semiconductor device comprising at least a support body and a monocrystalline semiconductor body, in which both bodies are provided with at least one flat optically smooth surface obtained by means of bulk-reducing polishing (mirror polishing), and at least the semiconductor body is then provided at the optically smooth surface with an electrically insulating layer with at least the electrically insulating layer on the semiconductor body being subjected to a bonding-activating operation, whereupon both bodies after their flat surfaces have been cleaned, are contacted with each other in a dust-free atmosphere in order to obtain a rigid mechanical connection, after which they are subjected to a heat treatment of at least 250.degree. C., whereupon the semiconductor body is etched to a thin layer having a thickness lying between 0.05 and 100 .mu.m.

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: 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 for manufacturing a glass stem for an electron tube comprises a first mold assembly and a second mold assembly for forming the stem therebetween. The glass stem includes a plurality of fillets with a lead-in conductor through less than all of the fillets and at least one dummy fillet without a lead-in conductor therethrough. The first mold assembly includes a universal stem having a mold block with fillet-forming openings therein. A replaceable marker pin is disposed and retained within the openings. The marker pin has a first end and an oppositely disposed second end. The first end has a distinctive geometric shape for contacting the dummy fillet and for conveying intelligible information thereto.

Abstract: A picture tube sealing apparatus for thermally welding a stem structure and a neck portion of a glass bulb thereof to each other and thereby seal the same. A table, on which a plurality of burners formed correspondingly to the diameters of the neck portions of various types of glass bulbs are arranged unitarily so that the burners have a predetermined angle with respect to each other, is turned to move a burners corresponding to the diameter of an object glass bulb to a predetermined position to thereby carry out a burner-switching operation, whereby the heating power of the burner can be regulated without manual operation even when the neck portions of glass bulbs fed sequentially have a plurality of different diameters.

Abstract: An apparatus used to manufacture a molded glass stem comprises a plurality of conventional lower stem mold assemblies and a plurality pre-heating, heating, forming, and annealing stations. The forming stations include at least one primary forming station having a primary upper stem mold assembly and at least one secondary forming station having a secondary upper stem mold assembly. The primary upper stem mold assembly includes a primary universal stem mold having primary fillet-forming means formed in a first mold block thereof. The secondary upper stem mold assembly includes a secondary universal stem mold having secondary fillet-forming means formed in a second mold block thereof. The primary fillet-forming means includes a plurality of longitudinal fillet-forming openings formed through the first mold block of the novel primary universal stem mold. A plurality of novel primary inserts are replaceably disposed within the openings in the first mold block.

Abstract: An apparatus for manufacturing a glass stem for an electron tube has a plurality of lead-in conductors and a plurality of fillets with the lead-in conductors extending through the fillets. The apparatus comprises a first stem mold assembly and a second stem mold assembly for forming the stem therebetween. The first stem mold assembly comprises a universal stem mold having a plurality of longitudinal fillet-forming openings formed through a mold block. A plurality of inserts are replaceably disposed and retained within the openings in the mold block. Each of the inserts has a first end, an oppositely disposed second end, and a shank portion therebetween. Each of the inserts has a recess provided in the first end and a lead-accommodating opening extending from the recess into the shank portion of the insert. The mold block also accommodates one or more solid inserts in the openings to produce stems having dummy fillets, i.e., fillets without lead-in conductors therethrough.

Abstract: A method for the manufacture of vacuum tube bases wherein to mould bases of electronic tubes shaving conductors of different lengths, a widened opening is made in the upper mould and a distance sleeve with a dead hole is placed in it. This distance sleeve compensates for the difference in length with respect to the longest conductors. Also set forth is a device for application of this method.

Abstract: A stem mold includes an improved first (upper) mold assembly and a conventional second (lower) mold assembly. The first mold assembly includes a conventional mold head and a plurality of lead-weights which are attached to one end of the mold head. The first mold assembly is improved by the inclusion of a novel first mold block which has a plurality of fillet recesses therein which communicate through guide openings with a plurality of buffer-pin-wells extending into a cavity in a second surface of the mold block. A novel lead-weight translator is disposed within the cavity in the mold block. The translator has a translator recess formed in one surface and a plurality of lead-weight apertures extending from the recess through the other surface of the translator. A pin holder is disposed within the translator recess. A plurality of pin apertures are formed through the pin holder and aligned with the buffer-pin-wells in the mold block and also with the lead-weight apertures in the translator.

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: In a method for manufacturing a cathode ray tube, a bulb is held by a first holding mechanism. An electron gun is inserted and held in a neck portion of the bulb by a second holding mechanism. Then, the neck portion and a stem of the electron gun are welded by a welding unit. The unit includes an annular burner having an inner surface with a plurality of burner holes formed in substantially the entire area along a circumferential direction thereof. The annular burner is constructed by two burner members which can be separated in a radial direction. The burner is positioned by an opening/closing mechanism and a reciprocating mechanism such that the inner peripheral surface of the burner is coaxially located outside the neck portion and opposes the stem of the electron gun. Thereafter, the neck portion is heated by flames injected from the burner holes, and then the burner is reciprocally rotated about its axis through a predetermined angle.

Abstract: An improved design and method and of manufacturing a luminous tube electrode comprises the steps of placing an electrode shell in an outer tube and allowing conductors connected to the electrode shell to emanate from an open end of the outer tube. A tubulation with a flared end is then butted up against the end of the outer tube, thereby sandwiching the conductors between the flared end of the tubulation and the outer tube. The flared end of the tubulation are then fused to one another forming a hermetic seal between each other and the conductors, resulting in the finished electrode. A further provision is made to blow a bubble in the tubulation.