Abstract: Method including painting a water-based paint onto an article to obtain a water-based paint coat, initially predrying the water-based paint coat by heating with far infrared rays, further predrying the water-based coat by heating with hot air, and thereafter painting either water-based paint or oil-based paint on top of the water-based paint coat. The article can be forcibly cooled with cold air after the further predrying step. The apparatus includes a front-stage paint booth for painting therein a water-based paint to obtain the water-based paint coat, a first predrying chamber in line with and after the front-stage paint booth and having devices for heating with far infrared rays, a second predrying chamber in line with and after the first predrying chamber and having devices for heating with hot air, and a rear-stage paint booth in line with and after the second predrying chamber for painting therein either the water-based paint or the oil-based paint.

Abstract: In the gas jet wiping of galvanized wire strip or tube the gas jet wiping nozzle and, preferably a reactive gas containment vessel used for modifying the surface coating on the wire, are made in two or more non-annular parts which when abutted together form an annulus. The parts may be releasably held together in their abutted annular form until the wire, strip or tube requires to be rethreaded, then the parts can be separated from one another transversely of the direction of travel of the wire, strip or tube through the nozzle or containment vessel. The threading of the wire, strip or tube through an annular nozzle or containment vessel is thereby avoided.

Abstract: A method and means for producing a layered semiconductor system are proposed wherein the required semiconductor layers are deposited on a carrier layer (10) through interaction with a melt (42). The carrier layer (10) itself may have a basic layer consisting of glass or quartz, which in turn may be formed from a melt by solidification on a metal melt.

Abstract: A metal foil coated with flame sprayed ceramic is produced in high productivity by flame spraying a ceramic on a surface of a metal foil, while spraying the rear side of the metal foil to be flame sprayed with water from an array of water nozzles arranged across the metal foil for cooling and providing tension to the metal foil.

Abstract: The invention relates to an apparatus and method for controlling the emission, and recovery, of volatile solvents. In particular, this invention relates to a type of finish material applying apparatus which has become known as a robotized spraying cabinet and to methods of operating such an apparatus. In accordance with this invention, materials sprayed through the spray head and which escape adherence to a sprayed articles impinge onto overspray directing members disposed adjacent the conveyor and between the conveyor and the reservoir, a quantity of solvent for the finishing materials is retained at a location adjacent the conveyor and supplying for use in cleaning the conveyor, and the overspray directing members and retained solvent to be supplied for cleaning are chilled and thereby the vapor pressure of the volatile solvent is reduced, whereby the volatile solvent is maintained in liquid form and control over the emission thereof is facilitated.

Abstract: A process for producing a smooth and glossy surface on a paper web and a calender arrangement for carrying out the process are disclosed. The calender arrangement comprises two sets of rolls through which the paper web is conducted in succession. Each set of rolls comprises a highly heated hard roll and a soft roll. A cooling device arranged upstream of at least one of the nips formed between the roll sets restricts the amount of heat transfer to the inner layers of the paper web and the attendant, undesirable partial plasticization of the inner layers of the web.

Abstract: A method and apparatus for coating a fastener, particularly a fastener with a head portion and shank portion, with a coating material is provided. The invention includes the steps of and apparatus for supporting the fasteners such that the fasteners are positioned for coating. The fasteners are conveyed such that the fasteners are moved through a plurality of operating stations and pass through a heating station where the shank portions of the fasteners are heated. Subsequently, at a material applying station, a coating material is applied to the heated shank portions. A preferred embodiment of the method and apparatus of the present invention includes supporting the fasteners on their head portions with the shank portions projecting upward, conveying the fasteners with their shank portions projecting upward for processing, heating the shank portion to a temperature above the melting point of the applied material and applying the material to the heated shank portion to form a coating thereon.

Abstract: In extrusion apparatus for producing a continuous film of thermoplastic material, either as part of an extrusion coating or laminating process or to cast a continuous film, a chill roll which receives the film directly from the extruder is mounted on a wheeled carriage whereon it can be moved lengthwise into and out of operating relation with the other components of the apparatus without requiring lifting thereof or of other parts of the apparatus. The carriage may be proportioned to move directly between the apparatus in which it is to be used and the floor of the mill, or it may be mounted on a separate wheeled cart on which it is transported to and from the extrusion apparatus. Particularly in the latter case, provision is made for both vertical and lateral adjustment of the base structure on which the carriage is supported in its operating relation with the extruder.

Abstract: A rotatable substrate supporting mechanism for use in a chemical vapor deposition reaction chamber of the type used in producing semi-conductor devices is provided with a susceptor for supporting a single substrate, or wafer, for rotation about an axis normal to the wafer. The mechanism is provided with a temperature sensing system for producing signals indicative of sensed temperatures taken at the center of the susceptor and at various points about the periphery thereof. A gas purging system is provided for inhibiting the flow of reactant gas in unwanted areas of the reaction chamber and in the supporting system itself. Rotational driving of the mechanism is accomplished by a variable speed motor under control of a circuit which stops and starts the rotation at controlled speeds and stops the rotation at a home position for enhancing the handling of the wafers.

Abstract: Method and apparatus for applying a dry-film drawing lubricant to metal blanks. Paired applicator and doctor rolls are positioned above and below the path of the sheets advancing through a roll box. The doctor rolls have end flanges overlapping the ends of the associated applicator rolls. A body of the liquid lubricant is maintained in the reservoir defined by each pair of applicator and doctor rolls, and following application of a coating of the lubricant to their surfaces, the blanks are conveyed between opposed heaters which raise the temperature of the coating to drive moisture therefrom. The blanks are conveyed between cooling units which lower the temperature of the lubricant coated surfaces, and thereafter through a transition zone to bring the temperature to the ambient range to prevent condensation thereon as the blanks are discharged to the atmosphere.

Abstract: A loading station receives a substrate into a load-lock volume pressure isolated from a loading station chamber which is open to a processing chamber. The volume is evacuated and the substrate lowered into the loading chamber. A transport arm moves the substrate from the loading station to a substrate carrier of a cooling fixture within the processing chamber. The carrier is connected to a clamp which together move vertically downward to lower the wafer onto a substrate seat of the fixture. During substrate processing the fixture is tiltable and rotatable and provides substrate cooling by solid-to-solid conduction, forced convection and free convection.Solid-to-solid conduction is provided by the clamp. The substrate is pressed to the fixture by the cooling clamp having a circulating cooling fluid.

Abstract: In an apparatus for applying liquid, pasty or plastic substances, particularly thermoplastic substances, to a substrate with a device for melting the substances and a feed head for transferring the melted substances to the substrate via at least one nozzle orifice, the device for melting the substances comprises a melting container and a pressure container connected thereto. In order to facilitate melting, heat exchanger surfaces, particularly heat exchanger tubes are arranged in the melting container.

Abstract: A system for soldering, leveling and cooling printed circuit panels including a preheater, a fluxer, and soldering, leveling and cooling stations. The cooperation of the soldering, leveling and cooling stations provides for efficient processing of printed circuit panels. The soldering station, which includes a solder immersion chamber through which the panels are conveyed, provides an oil coating on the solder to minimize formation of dross. Automatic replenishment of oil through use of suitable flux on the panels to be soldered provide continuous cleaning of the soldering system to permit extended operation. A cooling table transports the soldered panels on a cushion of air to prevent marring.

Abstract: The optical fiber paid out from a reel passes through an extrusion head, then through a cooling vat, the sheath extruded around it being pulled by a withdrawal device. The sheath then passes through a second vat, when the stranding element is withdrawn by an auxiliary withdrawal device under as low a tension as possible. In the second vat, the stranding element is reduced to a temperature lower than the ambient temperature so that contraction of the sheath ensures the excess length of the optical fiber.

Abstract: A thermographic printing machine has a powder applicator, a heating stage, and a cooling stage wherein the heating stage has a paper transport path which is sinuous and passes on both sides of a heater, the paper passing around rollers which define the ends of the transport path. The rollers at one end do not touch the printed surface of the paper and a guide shell prevents buckling. The machine can run much faster than any previous thermographic machine because of the compactness of the heater stage. The machine may have a re-folding device for continuous fan-folded paper, wherein the paper is drawn through the machine by a drive mechanism at the exit end of the machine prior to the re-folding stage, and wherein an adjustable linkage between the drive mechanism and the re-folding device ensures re-folding of fan-fold paper of different sheet lengths.

Abstract: A distributor beam for depositing coating material on the surface of a sheet of glass includes a plenum divided by a septum for separating different coating gases. Outlets for the gases are connected to an inlet to a mixing chamber for separating and redirecting the flow of the gases to thoroughly mix them into a coating material. A finger baffle having two sets of alternating finger elements extends across the width of the mixing chamber. Each finger element has one end closer to the plenum outlet than an opposite end. The plenum is surrounded by a cooling fluid duct and heating elements are provided for temperature control. Thermocouples generate signals representing desired temperatures and the heaters are controlled to maintain an optimum temperature for the gases as they flow from the plenum to the surface of the glass sheet which is located below an outlet from the mixing chamber.

Abstract: A highly compact machine for applying an attractive protective coating to a paper web that passes through a printing press is located between the last press stand and the dryer of the printing press, and to enable the machine to receive the web, the printing press is provided with an apparatus for directing the web back to the print stands and the machine after the web passes through the dryer. The machine includes upper and lower blanket cylinders, a plate cylinder contacting the lower blanket cylinder, and an oscillating cylinder below the plate cylinder. In addition the coating machine includes a pan containing a coating fluid and a pan roller, the surface of which rotates through the fluid in the pan to lift it out of the pan. A metering roller revolves close to the pan roller to remove excess fluid from the pan roller which thereupon transfers the fluid to a form roller. That form roller runs against the oscillating cylinder and transfers the fluid to the oscillating cylinder.

Abstract: A vapor phase system for soldering of a workpiece. A vessel for containing an electronic liquid which is heated to generate a zone of saturated vapor. A first inclined throat communicates with the vessel and a solder pot is located within the vessel. The solder pot including a reservoir for containing molten solder, a second throat aligned with the first throat and communicating at one end with molten solder contained in the reservoir means and communicating at the other end with the saturated vapor, molten solder contained in the reservoir means is pumped through the second throat and is captured by the reservoir and a conveyor carries work product through the first throat, through the saturated vapor and into the second throat whereby the work product will become immersed in the molten solder contained within the second throat.

Abstract: This granulating device (1) comprises a drum (2) mounted so as to rotate around a substantially horizontal axis. On its inner periphery, this drum (2) carries lifters (20) intended to entrain and lift granules of a substance which is crystallized over a part of its path and it is associated with an entry channel (7) for fine granules which opens into the vicinity of a first end, which is away from that at which the granules are discharged from the drum. A spraying bar (5) is provided inside the latter for spraying the product to be granulated. According to the invention, a fluidized bed device (3) is arranged inside the drum for cooling the granules which are stirred and lifted in the drum, as they become coated by spraying. This device enables the granules to grow uniformly and to cool and dry efficiently, resulting in the production of granules of a very good quality and controlled particle size.

Abstract: A device for applying a protective coating to the weld or solder seam of a can body has an application roller (2) serving to apply a coating material inside a region covering the seam at the inside (15) of the can body. The roller periphery has a cross-sectional profile (5) comprising at least one depression (10) in a middle region (9) of a middle portion (6) having a region width of less than 60% of the width of the middle portion (6). The profile (5) further comprises at least one salient point and/or at least two points of inflection in this middle region (9). The device renders it possible to achieve optimum layer thicknesses of the coating over the seam, which are neither too little for the stresses occurring during the long-term storage of corrosive liquids nor too great for the tearing strength stressing of the coating which occurs during the flanging over of the edges of the can body.

Abstract: Apparatus for applying a coating of paraffin wax to sheets of corrugated paperboard. The sheets are fed in a generally horizontal attitude through a bath of molten wax disposed in an elongated tank. Chain belt conveyors provide upper and lower flights to hold the sheets as they are passed through the bath.

Abstract: A magnetic head for use with a magnetic tape information recording, storage and retrieval computer system which includes applying a hard, wear-resistant coating to an inexpensive molded plastic body to drastically reduce the cost of the magnetic head component without reducing its reliability or stability and also the method of producing such a magnetic head.

Abstract: A process and an installation for the continuous application of an oxidizable coating to a strip.The object of the invention is to provide an improvement in the recycle ratios and a savings of inert replenishing gas in an installation, in the enclosure which protects the draining means for controlling the coating, is recycled. To achieve this result, provision is made for the continuous purification of this gas by bringing it into contact with a reductive substance. If protective enclosure also contains the minimized flouring nozzles, zinc vapor can be introduced into the gas. This zinc vapor reacts with the oxygen and produces the nuclei by condensation.

Abstract: An improved process, optimizing quality and growth rate with independent control of residual stress, is disclosed for the growing of membranes for use as X-ray lithography mask blanks. The process comprises providing a mounting fixture and a low-cost substrate material thereon, cooling the substrate to about the boiling point of hydrogen by passing a liquid coolant in contact with the fixture, depositing by a low-temperature plasma-enhanced method a thin membrane onto the cooled substrate, removing the substrate and the thereon deposited membrane from the fixture, and allowing the substrate thermally to expand by gradually assuming ambient room temperature, whereby the membrane will acquire optimum tensile stress. Preferably, the low-cost substrate is low grade industrial silicon and the membrane is formed of boron nitride, silicon carbide, silicon nitride, amorphous silicon, diamondlike carbon, aluminum oxide, beryllium and silicon oxide.

Abstract: A lightguide fiber (21) which has been drawn from a preform in a furnace (26) and which has a relatively high temperature is cooled prior to its movement through an apparatus (41) which applies a coating to its outer surface. The fiber is cooled by moving it through a liquid material (42) in a reservoir (40) which is interposed between the furnace and the coating apparatus. The liquid material in the reservoir (40) is the same as the coating material contained in the apparatus that is used subsequently to coat the fiber.

Abstract: Steel strip is run towards container containing liquid zinc, and is either deflected before reaching the surface or from an immersed position, by a second deflection roll; in the first case, a scooping roll flushes liquidous zinc against the strip. The strip is either run through a protective gas containing cooling path or through the outer atmosphere.

Abstract: An apparatus for thermally spraying a coating on a workpiece includes a fluid flow control shroud having a shaped inner surface portion complimentary to a preselected surface of the workpiece. During the coating operation, a supply of pressurized gas is introduced between the inner surface of the shroud and the workpiece surface to exclude deflected coating particles, remove weakly or loosely bonded particles, and cool the workpiece.

Abstract: An electrographic development apparatus comprises a magnetic brush applicator having cooling means for dissipating thermal energy from the developer as it is transported by the brush. Such cooling means preferably comprises means for passing a cooling fluid through the interior of the brush while in use. Alternatively, such cooling means comprises a hollow skive through which a cooling fluid is circulated.

Abstract: A soldering technique is provided especially for printed circuit boards wherein a bath of solder assisting fluid such as non-ionic surface active agent is superposed on a bath of solder. In one form, the workpiece is passed through the bath of solder assisting fluid and solder is pumped from the bath of solder to a trough whereat the solder is cascaded onto the workpiece. In another form, the workpiece is passed downwardly through the bath of solder assisting fluid into the bath of solder for the application of solder to the workpiece. Thereafter, the workpiece is withdrawn from the bath of solder through the bath of solder assisting fluid. In both instances, while the workpiece is still within the bath of solder assisting fluid, jets of this fluid are played against the workpiece to control the thickness of the solder which is allowed to remain on the workpiece.

Abstract: A solder leveling system for use in vapor phase soldering of printed wiring boards. A transport system operating in a near-horizontal mode moves the board to be solder coated through a vapor zone in a chamber having a solder pot which has a throat in line with the plane of the transport system. The near-horizontal movement through the vapor and into and out of the solder pot prevents solder sag and permits control of the thickness of solder deposited on the opposing board surfaces. Leveling nozzles are positioned in a vapor-filled chamber astride the transport system between the solder pot and the chamber throat. Perpendicular nozzle offset distance from the board and nozzle angle are adjustable. Preferably one nozzle projects a stream normal to the board, with the other nozzle projecting a grazing stream for clearing through holes. A nozzle flow rate corresponding to a predetermined energy threshold provides reliable hole clearing.

Abstract: The apparatus and method for processing steel strand wire cable and the like for use in prestressed concrete is disclosed in which the outer surface of the cable produced has a substantial pure rust or hydrated oxide coating thereon enabling the cable to be utilized immediately in concrete configurations to thereby produce substantially higher flexural strengths in prestressed concrete than heretofore in the prior art. The apparatus and method specifically encompasses the use of ultransonic cleaning equipment which causes cavitation cleaning effects in the liquid medium through which the cable passes during its cleaning process. In effect, the ultrasonic cleaning "catalyzes" the chemical redox reactions by removing all surface inhibitors and reducing reactant diffusion barriers thus accelerating surface wetting of the strand cable with H.sub.2 O and O.sub.2, such that the rusting chemical reactions can occur spontaneously. The dominant bond developed between the steel and concrete is chemical.

Abstract: A differentially coated, galvanized steel strip is produced by hot dip coating both sides of a steel strip and adjusting the weight of coating metal on opposite sides of the strip to produce a light coated side and a heavy coated side. The strip is then precooled to fully solidify the heavy coated side following which the galvanized strip is subjected to a treating step in which simultaneously the light coated side is heated and the heavy coated side is cooled. This fully transforms the light coated side to iron-zinc alloy throughout while only partially transforming an inner layer on the heavy coated side to iron-zinc alloy. The outer layer on the heavy coated side consists entirely of coating metal, and there are no intermittent bleed-throughs of iron-zinc alloy to the outer surface of the heavy coated side.

Abstract: A steel strip (10) is conveyed through a galvanizing bath (20) of molten zinc, a zinc coating weight control device (12), and a minispangle box assembly (16). The steel strip emerges from the zinc coating weight control device (12) with a non-uniform temperature distribution across its width in which it is warmer in the center and cooler at its edges. A differential, pre-cooler assembly (18) cools the steel strip selectively and non-uniformly across its width in a manner which is complimentary to the temperature distribution thereacross. In this manner, the steel strip exits the pre-cooler assembly (18) and enters the minispangle box assembly (16) with a more uniform temperature distribution. This results in a more uniform minispangle appearance on the strip (10) as it exits the minispangle box assembly (16). The pre-cooler assembly includes a plurality of nozzle pairs (32a, 32b; 34a, 34b; 36a, 36b; 38a, 38b).

Abstract: In continuous hot dipping of metal strip, the tension of the strip at pre-treatment furnaces and that at air-wiping nozzles are isolated and made independent of each other. For this purpose bridle rolls driven by motors are disposed downstream of the pre-treatment furnaces. The tension at the former is maintained at a lower value, while the tension at the latter is maintained at a higher value. The bridle rolls are mounted in bearings which are covered by seal boxes in which an inert gas is enclosed so as to prevent the intrusion of atmospheric air into the furnaces.

Abstract: An apparatus for the uniform thermal treatment of semiconductor wafers by gas conduction holds the wafer in place over a gas filled cavity in opposition to a thermal mass maintained at an appropriate temperature. Gas is introduced behind the semiconductor wafer adjacent its periphery to produce a near-constant gas pressure across the backside of the wafer. The constant pressure produces constant thermal conductivity. Consequently, heat conduction is uniform, the temperature of the wafer is uniform and uniform processing is accomplished across the wafer.

Abstract: Apparatus for applying a thin, adhesive coating to plate-shaped bodies of glazed ceramic, e.g., tiles, glass or enamel. To this end, there are provided: a heated tank for receiving the dipping liquid; a cover hood shielding the tank and the liquid bath from the environment and comprising inlet and outlet slits for the plate-shaped bodies; a cooling device arranged in the cover hood; a conveyor mechanism extending from the inlet to the outlet slit on a downwardly curved path through the tank and a mechanism for adjustment of the length of the dipping section to lower and raise the liquid level in the tank.

Abstract: An installation for the continuous coating of a strip, especially for the galvanizing of sheet steel.The object of the invention is to improve the quality of the coating and the uniformity of its crystallization, especially for thin sheets with low coating thicknesses. To achieve this result, the minimized flouring nozzle or nozzles are placed in an enclosure from which the strip leaves through a narrow slit and in which is provided means for maintaining a protective atmosphere inside this enclosure.Preferably, this enclosure is one with an enclosure surrounding the draining means, and means for recycling the protective atmosphere and for purifying it with respect to oxygen are provided.

Abstract: Machine for producing insulative and protective coatings on endless flexible metallic belts of continuous casting machines is described. The coating is applied to a revolving belt being supported and driven by pulleys in the machine. The coating is applied by thermally spraying a powdered mixture directly onto the roughened casting surface of the belt. The machine holds the revolving belt under tension and applies cooling to the rear (inner) surface of the revolving belt opposite to the region where the thermal spray gun is applying the coating to the belt.

Abstract: Laterally "floating" thermal spray gun traversing apparatus and system for laterally tracking a revolving casting belt being thermal spray coated for applying uniformly spaced passes of thermal spraying on the revolving casting belt regardless of any lateral (edgewise) movements of the casting belt in either direction and regardless of any chamber in the edge of the belt. The thermal spray gun is traversed by a leadscrew and an adjustable speed drive for the leadscrew, both the leadscrew and its adjustable drive being carried by a frame mounted on a carriage freely movable along a trackway extending parallel to the axis of the leadscrew. A roller senses the lateral position of the edge of the revolving belt, and the carriage is moved by a source of motive power responsive to the sensed lateral position of the belt for causing the carriage together with the frame, leadscrew and leadscrew drive automatically to track the belt.

Abstract: Passed through a chamber holding a non-oxidizing atmosphere substantially horizontally, a steel strip is continuously coated on one side only with a molten coating metal. An electromagnetic pump imparts a thrust to the molten coating metal on the entry side of a guide so as to form a stream of the molten metal rising above the bath surface on the exit side of the guide. The rising molten metal stream contacts the bottom surface of the strip to form a film of the coating metal thereon. Provision is made to offer less flow resistance to the rising stream widthwise then lengthwise, so that the molten coating metal flows positively toward both edges of the strip.

Abstract: There is provided a method and apparatus for impregnating carbon articles with hot impregnating medium in a closed autoclave whereby the articles to be impregnated are introduced into the autoclave which is then closed and heated by means of a heat exchanger to the impregnating temperature at which point the impregnating medium is introduced to fill the autoclave and then pressurized to impregnate the articles. Subsequent to impregnation, the impregnating medium is removed from the autoclave and the closed or sealed autoclave and the impregnated articles are cooled to a temperature below a predetermined "lower limit temperature" and the articles are then removed from the autoclave. The "lower limit temperature" is chosen to eliminate the emission of harmful off-gases.

Abstract: A machine and process for automatically coating a plurality of objects, each object having a first magnetic end and a second end. At one end of the machine is a feeding area containing a revolving drum having a plurality of parallel rows of magnets affixed thereon. The magnets are arranged in pairs having opposite polarity so that each pair may attract a magnetic end of one of the objects in the bin and can align the magnetic end therebetween. Parallel and adjacent to each row of magnets is a receiving bar which is also affixed to the drum. As the drum revolves, gravity encourages the second ends into the channels in the receiving bars, to be clamped therein by a tension mounted clamp, leaving the magnetic ends now free. Adjacent to the revolving drum containing the clamped objects is a conveyor with a plurality of grippers to receive the exposed magnetic ends of the objects and remove them from the drum.

Abstract: A method and apparatus are disclosed for reducing spangle in a galvanization system that utilizes air knives to control coating thickness and distribution. Cooling nozzles are located downstream of the air knives along the feed path of the substrate being coated. The cooling nozzles direct an air and water mixture against the substrate at approximately the location the air from the air knives impinge the substrate. The air from the air knives force the air and water mixture to be carried along the substrate surface in a direction of the substrate feed path.

Abstract: A thermo-engraving machine has safety, energy conserving and convenience features. The thermo-engraving machine receives a freshly printed sheet, passes it through a device for depositing powder. It heats the powder to cause the powder to melt, then cools the sheet to create raised printed material. The deposition device in one case is a tank with a vertical partition that provides separate containers for powders of different types. The other deposition device is a cyclone type that is pivotal to allow easy cleaning and has toothed wheels in its suction manifold to retain the sheets. The oven has sidewalls that will laterally move to vary the width of the oven. Heater elements in the oven can be selectively turned off for smaller widths. The oven is held by a latch that releases the oven to spring upward should electricity be cut off to the solenoid that holds the latch in position.

Abstract: Printed circuit boards which are to be tin-plated pass through a liquid application station in a horizontal direction, and thereafter through an activation station for the activation of the applied liquid. Then the printed circuit boards arrive at a receiver element of substantially U-shaped cross-sectional configuration, which subsequently is pivoted about a horizontal pivot shaft, out of a horizontal take-up position into a vertical transfer position. During this pivotal movement the printed circuit board bears upon a support element or part which supports the printed circuit board. By means of grippers the printed circuit board, previously brought by the receiver element into a vertical position, is immersed in vertical position into a solder bath. After a certain residence time the printed circuit board is inserted by the gripper into a further receiver element likewise having a U-shaped cross-sectional configuration, this receiver element being located in a vertical receiving position.

Abstract: A method and apparatus for forming an electrically conductive layer on a corrosion-resistant layer which covers a cable. The cable is passed through a powder accumulating tank in which are mixed an electrically conductive powder and binder powder so as to allow the mixed powder to initially adhere to the surface of the cable. The mixed powder is then pressed against the surface of the cable first at a cable outlet of the powder accumulating tank and then with a powder applying device in which an endless powder applying belt or cloth is rotated around the cable at a rotational speed dependent upon the linear speed of the cable. The surface of the cable is then heated to melt the binder powder and cause the electrically conductive powder to yet more firmly adhere to the surface of the cable. The cable is then cooled and wound.

Abstract: In an apparatus for applying a protective substance to a welding seam of a metallic sleeve, including a frame, a container disposed within the frame holding a protective substance, a drivable applicator roller disposed in the container at least in part contact with the protective substance and applying the protective substance to the seam of the metallic sleeve within a substance transfer region, and wherein the sleeve moves towards, past and away from the applicator roller, comprising in combination therewith, a stripper disposed within the transfer region on each side of the seam removing any excess substance leaking away laterally from the seam.

Abstract: A continuous process for applying a solder coating to copper-coated holes and tracks on a printed circuit board. The upper surface of the circuit board having a flux thereon is contacted with a contact member and the circuit board and contact member are moved through a molten bath of solder. Solder is displaced by the circuit board to produce a buoyant force which presses the circuit board against the contact member. The speed of the contact member in moving through the molten solder is controlled to determine dwell time of the circuit board and maintain contact between the circuit board and the contact member.An apparatus for continuously applying a solder coating to copper-coated holes and tracks on a printed circuit board. The apparatus includes means to contain a bath of molten solder and means to contact the upper surface of a printed circuit board.

Abstract: Plural strands of wire emerging from the cooling tower of a galvanizing line are cooled from about an elevated temperature to ambient temperature by heat exchange apparatus in which the strands are passed through an agitated, flowing stream of cooling water. The apparatus is designed to accommodate knots that connect strands in end-to-end relation or other strand surface irregularities. It also permits disorientation of the strands from their respective pass lines without disrupting operation of the apparatus.

Abstract: Electrical circuit boards are cooled immediately after passing through a soldering work station wherein heat-sensitive electrical components are mechanical soldered into such circuit boards so as to minimize dangerous temperature peaks without disrupting the soldering process. The cooling device is positioned closely adjacent to the soldering work station and comprises a housing having a C-shaped passageway along the center thereof for receiving an elongated transport means carrying freshly-soldered circuit boards in a given direction from the solder soldering work station. Air flow means are provided at opposite wall portions of the passageway for directing a stream of cooling air against opposite sides of the circuit boards carried by the transport means and approximately at right angles to the travel directions of such boards.