Abstract: A method and apparatus for the continuous application of strip-, ribbon- or patch-shaped coatings of a noble metal to an electrically conductive tape by utilizing non-conductive belt means moving in concert with the tape as they simultaneously traverse an electrolitic solution. The non-conductive belt means shields the tape from the solution in those areas where a coating is not desired.

Abstract: A device for applying flowing masses to a surface which includes a conduit which feeds the mass to the rear side of a piston mounted for reciprocation in a chamber. The piston has openings therethrough and serves to apply coating to the surface by reciprocation in the chamber.

Abstract: A method and apparatus for treating only one side of a strip of material utilizes a pressurized foil bearing. The strip passes around the foil bearing while contacting a bath of liquid material. By controlling the pressure of the pressurizing medium used within the foil bearing, the strip is supported on a film of the pressurizing medium and the liquid material is prevented from contacting the side of the strip adjacent the foil bearing while the other side of the strip is in contact with the liquid material. Preferably, the pressurizing medium is at about the same temperature as the liquid material. Furthermore, a non-oxidizing gas may be used as the pressurizing medium to protect the side of the strip adjacent the foil bearing from oxidizing.

Abstract: Continuous, random dyeing apparatus for carpet or the like comprising a plurality of elongate drums mounted for rotation on parallel, spaced axes, each drum having a plurality of cavities extending partially thereinto from the outer surface thereof, wiper means engaging the outer surface on one side of each drum, along a line parallel to the axis thereof, means for rotating the drums in a direction such that the one sides thereof move downwardy, and means for conducting a dyeing liquid to the intersections between each drum and its associated wiper means. The liquid fills the cavities in the drums, on the one sides thereof, as the drums rotate and the liquid in the cavities passes below the wiper means and is dispensed below the drum onto a carpet moving therebelow.

Abstract: A method of reinforcing an edge region of a plate formed of a porous material by means of a reinforcement agent wherein the plate is immersed in a bath containing a reinforcement agent. Air contained in the plate is withdrawn at least from one plate surface. Both plate surfaces prior to the immersion of the plate in the bath are covered so as to be protected against contact by the reinforcement agent.

Abstract: A porous, electrical insulating adhesive substrate is made by (A) electrostatically coating a flexible sheet material with heat reactive adhesive resin particles, having an average particle size of between about 1 micron to 2,000 microns, the adhesive particles are applied in a predetermined pattern on the sheet covering from about 10 percent to 90 percent of the sheet material area, the area between the resin pattern not being coated; and then (B) heating the patterned coated sheet material between about 65.degree. C to 250.degree. C, forming a discontinuous, 0.25 mil to 25 mil (0.006 mm to 0.

Abstract: A doctor roll arrangement, especially for stencil printing, comprising a hollow tube rollable on a support, the tube being provided with gaps through which part of a supply of an inking substance can enter into the interior of the tube, the supply being normally placed in front of the tube. The arrangement may include an internal doctor that is fitted into the tube, and being preferably adapted to revolve. The internal doctor may be constructed as a magnetic roller that can be attracted by a magnetic body. In accordance with the invention, the internal doctor can also be constructed as a perforated, hollow tube. Furthermore, a further magnetic roller can be fitted in the perforated tube, acting as a further internal doctor. Finally, at least one of the hollow tubes, the internal doctor, and the further internal doctor can consist of a magnetizable material that can be attracted by the magnetic body.

Abstract: A device for treating a web or the like adapted for screen printing including a magnetizable wiping roller or squeegee mounted on a working carriage, a printer's blanket carrying the web, a magnetic beam disposed below the printer's blanket, and rails rollably supporting the magnetic beam. The magnetizable wiping roller is urged towards the web through movement of the working carriage in the longitudinal direction of the printers blanket, and guided thereover by the magnetic beam in the course of printing on the web. The web is stationary during treatment. An electric motor is provided for moving the magnetic beam and the motor drives at least one drive wheel engageable with the rails for moving the beam. Speed and position of the wiping roller is determined by a sensor arrangement responsive to deviation of the working carriage from the magnetic beam path.

Abstract: A material with a fusible backing is made by bringing a substrate into contact with a printing screen having fine polymer dust supplied to its other side and then bringing the substrate out of contact with the screen and heating it from below to fuse the polymer to the substrate.

Abstract: An apparatus for imparting a relief effect to patterns on even surfaces. A cylinder is formed by winding upon itself a thick metal sheet which is provided with holes therethrough. A doctor permits the depositing of a coat of a colorless varnish onto the surface to be coated when the surface is translated linearly relative to the rotatable cylinder.

Abstract: An apparatus having a rotating material transport member with a plurality of openings through a rim on the transport member that divides particulate material supplied to the interior of the member into a plurality of metered amounts by placing the material within the openings. The particulate material flows into the openings from a material supply within the transport member for a limited rotational arc that determines the amount of material within the openings. The metered particulate material is prevented from flowing out of the openings by an external member covering the openings on a limited exterior portion of the transport member. The openings eventually rotate past the extremities of the external member and the material within the openings then falls out of the openings in spaced deposits of controlled metered amounts.

Abstract: An installation for coating substantially U-shaped or V-shaped articles, such as hairpins, curlers and similar items includes treatment stations comprising a coating station at which a powderous plastic material is applied onto those portions of the objects which are to be coated, a heating station at which the said portions of the objects are heated to a temperature at which said powderous plastic material melts, and conveying means for conveying said objects to said stations. The installation according to the instant invention comprises at its inlet end inlet means for introducing in bulk the objects to be coated into said installation, pick-up means for separately picking up said objects one by one, and orienting and feeding means for feeding said objects to said coating stations, at least a part of said orienting and feeding means being adapted to mask the remaining portions of said objects, which are not to be coated.

Abstract: A horizontal dyestuff-supply tube within a cylindrical printing screen supports a prismatic applicator housing whose bottom is formed from two transversely spaced angle profiles for the guidance of a vertically movable distributing member. The latter is in the shape of a block with a multiplicity of vertical passages terminating at its underside in a discharge slot, the block penetrating upwardly into the applicator housing and supporting a perforated slack membrane of rubber or the like secured to the upper block surface and to the lateral inner bottom surfaces of the housing to form aprons preventing the penetration of dyestuff along the guide surfaces of the angle profiles. These profiles may be interconnected by transverse bolts passing through vertical clearances formed in the distributing member between its passages.

Abstract: Method and apparatus for providing a completely encircling coating of an organic polymeric material on a localized region of a glass container. At a coating station, a glass container is rotated through at least 360 degrees. During the rotation, a material application head furnishes fluid organic polymeric material to the surface of the localized region of the glass container which is to be coated. Stop members hold the application head a fixed distance from the localized region and determine the perimeters of the encircling coating and a doctoring edge of the application head helps form a uniform layer or coating of the organic polymeric material completely encircling the localized region.

Abstract: A dyestuff applicator for an apertured printing screen, curved about a horizontal axis, comprises an axially extending supply tube within an elongate casing supported thereon, the open casing bottom being surrounded by flanges in clamping engagement with an elastic membrane curving downwardly toward the underlying screen surface under pressure of the overlying liquid and of a limitedly vertically movable loading frame. A metallic foil, curved cylindrically about the screen axis, is interposed between the membrane and the screen, the foil and the membrane being provided with aligned openings which form an outlet for the dyestuff liquid along a median zone of contact bracketed by the frame.

Abstract: An arrangement on screen printing machines, particularly rotary screen printing machines, in which the dyestuff is taken from a dye pan and passed through the apertures in a screen and is applied onto the web of goods to be treated, which comprises a dye shutter disposed in the penetration zone for the dyestuff on the side of the screen remote from the weg of goods, to be closed when the machine is stopped.

Abstract: A dyestuff applicator, overlying an area of contact between a movable printing screen and a substrate, comprises a horizontal supply tube which supports an axially extending dyestuff-distributing member with freedom of relative mobility in a vertical axial plane of the tube. The bottom portion of the distributing member, forming an axially extending dyestuff outlet in the shape of a slot or a multiplicity of closely spaced apertures, is separated from its top portion, secured to the tube, by a bar-shaped body of relatively soft material which is readily compressible in the vertical direction while resisting deformation in a horizontal plane. The distributing member is weighted down by the pressure of the liquid dyestuff in a overlying space or by springs inserted between that member and the supply tube.

Abstract: In a stencil screen printing system, submersion transfer apparatus for forcing fluid through the pattern screen, including an elongated member with downwardly depending end supports having therebetween a strand submersed in the coating fluid e.g. printing ink. The elongated member is fitted in place of the conventional squeegee on a stencil screen press, so that the submerged strand is positioned in contact with the upper surface of the stencil screen during the print stroke to force fluid such as ink through the pattern of the mesh screen.

Abstract: A tray suitable for providing a uniform coating of predetermined thickness on sheet material includes a generally V-shaped trough for dispensing a fluid contained therein through a plurality of apertures formed through the bottom of the trough and spaced along its length. Along the outer surface of the apex of the V-shaped trough, there is formed a channel communicating with the apertures and defining a pair of spaced continuous blades extending along the length of the trough and spanning the apertures. The lands of material between the apertures of the trough are tapered to a point on the side of the trough adjacent the channel to provide a uniform supply of coating material within the channel. As the trough is moved across the surface of a sheet to be coated, the trailing blade which is spaced at a desired height from the sheet material, provides a uniform coating of fluid to the sheet.

Abstract: A dyestuff applicator, located inside a cylindrical printing screen, comprises a horizontal tube which supports an axially extending dyestuff-distributing member immediately overlying the inner screen surface. The distributing member, or at least a membrane-shaped bottom thereof, is under pressure of the liquid dyestuff supplied to the tube at a superatmospheric pressure equivalent to a head of at least 1000 mm water. To insure full effectiveness of this pressure over the length of an outlet zone in the bottom of the distributing member, the body of liquid overlying that zone within the applicator should have a cross-section exceeding in at least one dimension 1.5% of the length of a flow path as measured from a point of entry of the dyestuff into the space containing that body of liquid.

Abstract: A stencil printing, coating or coloring machine has a flexible hollow metal cylinder in contact with the stencil, and a perforate strip in the area of contact between the stencil and cylinder. The ends of the cylinder are sealed by deformable covers, and the interior of the cylinder is at least partially filled with printing, coating or coloring material.

Abstract: A dyestuff applicator, overlying an area of a movable printing screen through which dyestuff is to be fed to a substrate, comprises a horizontal supply tube which supports an axially extending dyestuff-distributing member with freedom of relative movement in a vertical axial plane of the tube. The distributing member, resting under pressure on the screen, forms a discharge slot communicating with the interior of the tube through a multiplicity of conduits closely spaced along the tube axis, the conduits being disconnectable from the slot with the aid of a slidable or rotatable shutter lodged in the distributing member and controlled by an external actuator mounted on the supply tube.

Abstract: A dyestuff applicator, located inside a cylindrical printing screen, comprises a horizontal ink tube which supports an axially extending ink-distributing member with freedom of relative mobility in a vertical axial plane of the tube. The distributing member, resting on the inner screen surface, forms a discharge slot communicating with the interior of the tube through a multiplicity of conduits closely spaced along the tube axis, the conduits being disconnectable from the slot with the aid of an axially slidable or rotatable shutter common to all the conduits and lodged in the distributing member. This distributing member is weighted down by the pressure of the ink in an overlying space, or by springs or fluid cushions inserted between that member and the tube.

Abstract: A downwardly open applicator housing, surrounding and mounted on a dyestuff-supplying tube within a cylindrical printing screen, carries an elastic diaphragm which spans its lower end in a slack state so as to hang down with a convex underside under the weight of a load of dyestuff in the housing and a pair of bars bearing upon the diaphragm from above. The central region of the diaphragm, flanked by the weighting bars, has a series of axially spaced openings for the discharge of the dyestuff; a flexible but substantially inextensible reinforcing strip of low-friction material, having a longitudinal slot registering with these openings, is bonded to the underside of the diaphragm to facilitate relative sliding of the screen and seal the gap region against leakage of dyestuff onto the inner screen surface. The upper diaphragm surface may have gap-bridging elements such as threads or wires bonded thereto as additional reinforcements.