Abstract: A method and apparatus are provided for applying a bonding material such as solder paste or conductive epoxy to a printed circuit board or other substrate surface upon which one or more other electrical components may already have been premounted. An exemplary embodiment of the invention includes a removable fixture having a screening surface which is generally shaped to conform to the area targeted on the circuit board and which contains holes prepositioned to correspond to electrical contacts of the electrical component to be mounted. The screening surface is connected to a holding frame by at least two vertical sides to allow easy placement of the screening surface on a populated or empty circuit board and to protect other mounted electrical components from damage or displacement during the screening process.

Abstract: A powder coating system particularly adapted for coating large objects such as automotive and other vehicle bodies comprises a spray booth having a manual/robotic spraying area for the application of powder to the inner door flanges and other hard to reach areas of the vehicle body using manually or rotatably operated powder dispensers, and an automatic spraying area wherein the remainder of the vehicle body is coated using automatically manipulated powder dispensers. A powder collection and recovery system is associated with the spray booth which includes removable cartridge filters arranged in V-shaped filter banks within powder collection chambers beneath the floor of the booth, a system for the transfer of powder collected in the powder collection chambers to hoppers located exteriorly of the booth and an air exhaust system for equalizing the negative pressure within clean air chambers which receive clean air after filtering by the cartridge filters.

Abstract: Coating apparatus and method of operation where the rotatable transfer cylinder and the rotatable metering roller of the coating device do not have internal cooling, but the heated coating liquid which is discharged from the nip between these rollers is itself cooled before being recirculated to a liquid holding pan beneath the transfer cylinder. A liquid catch tray is positioned below the metering roller for receiving coating liquid dripping from the metering roller, the catch tray having a downward incline toward the liquid holding pan, and the catch tray being spaced vertically and laterally away from the nip between the transfer cylinder and the metering roller to thereby provide an open space between the holding pan and the catch tray. A reservoir is positioned below the open space and below the nip for receiving coating liquid from the catch tray and the nip, and for receiving coating liquid overflowing from the holding pan.

Abstract: An apparatus for the chemical metallization of open-pored foams, nonwovens, needle felts of plastic material or similar textile material, in particular those having a porosity of 45 to 98%, has three processing stations. The first processing station is a laying station, the second is a chemical metallization station and the third is a centrifugal station. The material of the substrate webs treated in the apparatus is made of polypropylene, polyethylene, polyamide, polyester or aminoplasts.

Abstract: Method and apparatus for applying a liquid film of controlled thickness to a paper web. The apparatus is in the form of a flexible blade coater having a flexible blade fixed at one end and bearing against a backing roll (with interposed web) at a free end. The blade has independent loading means, preferably pneumatic. An intermediate loading means applies a first load intermediate the fixed and free ends which serves primarily and substantially independently to establish blade geometry or tip slope. A second loading means positioned near the free end of the blade primarily and substantially independently establishes tip load for a given geometry established by the first loading means. The compound loading arrangement allows a wider range of finer control of coating film thickness.

Abstract: A paper coating system is characterized by an upstream dip roll applicator that applies an excess layer of liquid coating material onto a surface of a paper web, and an improved downstream doctor assembly for metering and leveling the coating on the web. The doctor assembly includes a doctor blade having a tip extended against and across the web and a shear plate, upstream of the blade, having a surface extending across and defining a gap with the web. An elongate chamber defined between the shear plate and blade extends across the web, and excess coating removed from the web by the blade flows into the chamber. Coating is drained from and uniformly along a lower end of the chamber at a rate to maintain an eddy current pool of coating in an upper end of the chamber immediately upstream of the blade/web nip, but to prevent formation of a liquid seal in the gap.

Abstract: A method and device for coating a web (2) of material, especially a web of paper or cardboard, traveling over a backing roll (1) wherein coating is applied to the web is excess and reduced by a flow-control component (3), especially a doctor, to the desired thickness and wherein the flow-control component is secured to a beam (5) that extends over the operating width. The coating-thickness deviation from a straight line is determined over the operating width and employed as a parameter for controlling the heat emitted by a heater (16), especially heating strips, positioned on the side of the doctor beam facing away from the backing roller.

Abstract: A coating method and an extrusion-type coating head in which turbulence at the junction between two flows of coating materials is prevented to provide multi-layer simultaneous coating over a wide range of coating rates and with a good coating quality. An intermediate block is sandwiched betwen a rear block defining a back edge and a front block defining a doctor edge. Two coating flows pass through slits formed on either side of the intermediate block, joining at the top end of the intermediate block and flowing together into a short slot extending between the end of the intermediate block and the outlet of the head.

Abstract: A laminating system includes a pair of heated laminating rollers (14) for drawing laminating film (12) from supply rolls and preheat members (30) between the supply rolls and the laminating rollers. The preheat rollers are heated internally by a bonded electrical heating element, while the laminating rollers are heated by a separate bonded internal heating element. The system includes pull rollers (18) for drawing the laminated articles from the supply roll (10) across preheat rollers (30) and through laminating roll (14) with a blower system (20, 242) for cooling the articles.

Abstract: A frictionless strip support for supporting a metallic strip conveyed along a feed path in a treatment process. The support including at least one hydrostatic chute including a plurality of confined hydrostatic chambers having apertures therein for a supply of a pressurized treatment liquid such as molten metal, and at least one pair of hydrostatic guides positioned downstream of the hydrostatic chute. Each hydrostatic guide has a confined hydrostatic chamber with apertures therein for supply of a pressurized treatment liquid such as liquid metal. The frictionless support also includes a pump of supplying the pressurized treatment liquid through the apertures and to the confined chambers such that the treatment fluid maintains the strip spaced from the hydrostatic chute and the hydrostatic guides by hydrostatic force of the pressurized liquid normal to the strip surface as the strip is conveyed across the hydrostatic chute and the hydrostatic guides.

Abstract: A thin film forming apparatus which forms a thin film over the film forming surface of a substrate by spraying a mist of a source solution produced by atomization over the film forming surface of the substrate heated to a given temperature. The substrate conveying direction is reversible, or a nozzle for spouting the mist into a film forming chamber and an exhaust duct are connected removably to a hearth forming the bottom wall of the film forming chamber and can be switched with one another. The film forming apparatus is capable of forming thin films of different laminate constructions.

Abstract: The present invention relates to a tape transport apparatus and a tape introduction method for forming a magnetic tape into an endless loop by splicing a leader tape to the magnetic tape and running such endless-loop magnetic tape therein. When an endless loop is shaped by splicing the magnetic tape and the leader tape to each other, the starting (front) end of the magnetic tape is drawn out to a splicing position while the front (fore) end of the leader tape is also brought thereto and, after the respective ends are spliced together, the endless loop is moved until the spliced portion between the magnetic tape and the leader tape is shifted to the splicing position for the leader tape. The starting front end of the magnetic tape led by such leader tape is then spliced to the terminal rear end of the magnetic tape, so that an endless loop is formed automatically without the necessity of the performance of operation by hand upon the magnetic tape.

Abstract: A method is disclosed for the resilient spinwelding of two (thermoplastic) body portions to one another. The incorporation of resilient members between the prior art "hard surfaced" spinweld apparatus and the body portions to be welded together significantly decreases the spinweld time, and in the case of container/lid systems used for food packaging, increases the burst pressure of the container/lid.

Abstract: The doctor device has a profile member pivotally mounted to a retaining member that is carried on a mount. Vertical movement of the mount causes angular displacement of the profile member thereby changing the material applicaton area disposed adjacent and upstream of the doctor. The doctor is either a doctor blade or roll doctor. In the case of a roll doctor, a receptacle is formed in the profile member and the roll doctor is magnetically retained with the receptacle. During application of a material to an application surface with the roll doctor, the roll doctor is magnetically attracted to the application surface by a second magnetic device located beneath the application surface or work surface.

Abstract: An apparatus and method for effecting a splice between a pair of feed rolls for successively supplying film material to a film utilization device, such as a labeling machine. Downstream from the rolls, a splicing station includes a pair of parallel, spaced film paths, carrying film from a respective roll. Movable film pads within the splicing station displace film within a selected path past a film cutter to manufacture a trailing end. Continued displacement of the trailing end brings it into adhesive engagement with the leading end of the other film, disposed within the other film path. A braking station downstream from the splicing station holds fast the film extending from the selected path during the splicing operation. Means to effect in registration splicing of film from the two rolls, while allowing continuous operation of the associated film utilization device, is also disclosed.

Abstract: An automatically opened and closed barrel is disclosed for use in plating treatments, chemical conversion coating treatments, etc. This barrel is provided with an opening and closing cam having a groove at a top part thereof and a slidable supplementary plate which covers the groove of the cam. A lid is pivoted relative to the barrel for covering an opening therein. A lever is fixed for pivotal movement with the lid, and only when the lid is required to be opened, the supplementary plate is slid so as to expose the groove in the cam. When this occurs, a free end of the lever is dropped into the groove of the cam such that the lid uncovers the barrel opening. The lever is prevented from dropping into the groove of the cam at every rotation of the barrel because the supplementary plate covers the groove at the cam which it is unnecessary to have the barrel opening uncovered, with the result of a longer usable life of the barrel.

Abstract: A combined splicing tape and peg board for connecting ends of continuous feed computer paper to facilitate changing between different paper products or to add leaders so that the first serial numbered check or invoice is not lost to the feed process. The apparatus enables non-continuous feed paper products, such as envelopes or checks, to be integrated into a continuous feed paper flow. Continuous feed paper products are abutted at their ends on the adhesive side of a previously mounted tape. Non-continuous feed products are mounted on the tape and then onto the front side of the continuous feed paper in the printer. Spaced holes in the computer paper are freely received by rigid pegs positioned and sized for proper alignment of the edges of the paper. The tape has spaced holes for proper alignment over the edges of the paper. In one embodiment the tape holes are slightly smaller than the pegs to retain the tape on the board.

Abstract: Apparatus is provided for carrying out a varnish impregnation method wherein a sheet-like base material is sequentially passed through a low-viscosity liquid storage region storing a low-viscosity liquid such as a solvent, a thermal syphon region, and a varnish storage region storing a varnish, the thermal syphon region being positioned between the low-viscosity liquid storage region and varnish storage region and communicating with both regions at air tight seals closed by liquid surfaces, and heating the base material in the thermal syphon region to vaporize the low-viscosity liquid impregnated in the base material. When the base material passes through the low-viscosity liquid, air contained in the base material is replaced with the low-viscosity liquid and discharged outside the apparatus. The low-viscosity liquid impregnated in the material is vaporized in the thermal syphon region.

Abstract: A coating system is provided with a controller which transforms a demand signal responsive to the speed, relative to the dispensing apparatus, of an object to be coated, into a control signal which adjusts for the non-linear output characteristics of the flow of coating powder through the dispensing apparatus to cause the material to be dispensed with a uniformity that is corrected for the non-linear relationship between those output characteristics and the speed of the object. In the preferred embodiment, the system corrects for the non-linear characteristics of different powder pumps in dispensing different powder coating materials upon objects carried by variable speed conveyors. A plurality of stair-step tables are stored in the memory of the controller. Each table represents a different selectable powder pump to provide a desired powder pump output characteristic.

Abstract: Apparatus for binding a plurality of sheets of paper or other media, including an assembly for clamping a plurality of sheets together with binding edges of respective sheets in alignment, and an assembly for coating the binding edges of the sheets with a quick-drying adhesive. The coating assembly advantageously includes an applicator member such as a porous pad, a supply of adhesive to the applicator member and a slidable mounting for the applicator member to guide the member along the binding edges of the clamped sheets. The applicator pad and adhesive may be contained in a telescoping housing which opens to expose the applicator pad during the process of sliding the housing toward and along the binding edges of the sheets.