Abstract: A method and apparatus for providing to an anti-rust treatment a peripheral portion a shell such as is associated with a brake booster and which comprises a pair of cylindrical members disposed in abutting relationship with each other and fastened together by a staking operation which occurs by applying a shearing action to the periphery of the abutting members at a plurality of locations. The substantially cylindrical shell is held at an angle with respect to the horizontal, and then driven for rotation. A vehicle containing an anti-rust paint is disposed below the rotating shell, and the shell is positioned so that its axis of rotation does not intersect the vessel. As the shell rotates, the shear-staked peripheral portion of the shell is successively brought into dipping relationship with the paint.

Abstract: A method for coating a running support with a coating solution, such as in the production of a magnetic recording medium, in which spreading of the coating solution into edge portions of the support not intended to be coated with the coating solution is prevented, hence providing a coating layer uniform in thickness and with good surface characteristics. Immediately before application of the coating solution to the support, a solvent is applied to regions of the support which are not to be coated with the coating solution and which are located on both sides of the coating region to be coated with the coating solution. In accordance with the invention, the solubility parameter of the solvent is made different from that of a solvent contained in the coating solution by at least 1.2 at a temperature of 25.degree. C.

Abstract: A method for forming barrier ribs for a gas discharge display panel which includes the steps of: covering a glass substrate with a conductive ITO film; covering the conductive film with photoresist; exposing the photoresist to radiation; developing the photoresist so as to selectively remove portions of photoresist thereby creating apertures in the photoresist; etching the panel conductive ITO film so as to remove the conductive film in the apertures; depositing barrier rib material including glass particles in the apertures formed in the photoresist until such time as the barrier rib material exceeds the thickness of the photoresist material; and, heating the foregoing combination to a temperature of approximately 580.degree. C. for about 10 minutes to burn off substantially all photoresist material and solidify the barrier material so as to form glass barrier ribs. The glass barrier ribs formed have a shape at least partially defined by the photoresist that was burned off.

Abstract: Paint is sprayed in a line onto a fiber glass mat just prior to the mat being impregnated with hot asphalt. The temperature of the asphalt causes the paint solvent to flash, the process of which prevents the asphalt from displacing the pigment, leaving the paint pigment in place in the body of the mat. A number of such lines may be formed on the mat at predetermined spaced locations to serve as installation guide lines for the roofer.

Abstract: A method and apparatus for automated dispensing of liquid materials onto a workpiece. The automated dispensing apparatus has a nozzle assembly which includes a flexible tube that is surrounded by a coil spring. The apparatus may be programmed to slide the nozzle assembly along a surface of a workpiece as liquid materials are discharged from the tube. The spring prevents kinking of the tube and protects the tube from abrasive damage, and also biases the lower end of the tube toward a position in contact with the workpiece.

Abstract: A process for producing planar dimmer comprising a transparent base, a dimming part, capable of dimming, disposed on the base, the dimming part comprising a first electrode layer formed on the base, a second electrode layer set facing the first electrode layer, a coloring part, disposed between the two electrode layers, and colors or discolors in response to the stimulus from the two electrode layers, and a conducting part disposed between the base and the first electrode layer in such a way as to be in contact with the first electrode layer in order to apply a uniform voltage throughout the first electrode layer.The process includes forming paint stripes, electrolessly plating a metal film over each of the stripes, forming an electrode layer over the metallized stripes, and forming a color-forming layer over the electrode layer.

Abstract: A reinforced paper and method for making the paper. The method involves applying to finished paper or the areas of finished paper to be reinforced a reinforcing medium dissolved in water with a surface tension reducing agent added. The solution rapidly impregnates the paper and the water and surface tension reducing agent are subsequently evaporated. The reinforcing medium rearranges the bonding of the fibers in the paper, thus strengthening the paper. The process may be carried out at the line speeds of paper converters and, when only certain areas of the paper are reinforced, the reinforced areas have a thickness substantially the same as the unreinforced areas. A preferred reinforcing medium is an anionic acrylic copolymer.

Abstract: A magnetic solid state device, such as a magnetoresistive memory cell, includes first and second layers of magnetoresistive material. The first and second layers are separated by a third layer which prevents exchange coupling between the magnetic dipoles of the first and second layers. The first, second and third layers are formed as a strip. A fourth layer of a resistive material, such as nitrogen doped tantalum, overlies the first layer. The fourth layer includes spaced, raised portions over which electrically conductive material, such as TiW, may be formed on top of the raised portions.

Abstract: A process and apparatus for fabricating expandable honeycomb materials disclosed. The continuous length of material is folded along opposite side portions thereof into a generally flat tubular form having upper lower layers. Adhesive is then applied along the length of the continuous material by first heating the material, applying the adhesive in a liquid state to the heated material, and then cooling the material to solidify the adhesive. The folded tubular material with solidified adhesive lines thereon is then wound about a rack in such a manner that the tubular material is deposited in a plurality of continuous layers one on another with the lines of adhesive being disposed between adjacent layers. The wound layers are then radially cut and placed in a vertically aligned stack while they are removed from the rack. The vertically stacked layers are then heated to a temperature sufficient to activate the lines of adhesive and bond the layers together.

Abstract: A flat gasket with a core and mesh-like elastomeric overlays where the overlays are screen-printed onto the core. The dimensions and shape of the mesh can be varied continuously over the surface of the core allowing the gasket to be adjusted for its intended use. Additional reinforcements may be printed onto the core and overlays at the same time the overlays are printed, reducing processing time and expense and allowing the gasket to be further adapted for its intended use.

Abstract: A process of forming a metal pattern film on a designated area of a substrate. A vapor stream of a decomposable hexacarbonyl metal compound is directed toward the substrate designated area to form thereon a layer of the decomposable hexacarbonyl metal compound. This layer is irradiated with a focused metal ion beam to decompose the hexacarbonyl metal compound into the gaseous carbonyl component and solid metal component to thereby deposit the solid metal component on the substrate designated area.

Abstract: For providing a vertical line marking on the side of a pile of cut out fabric members in order to provide a mark on the edge of all these members it is customary to brand a line mark into the side of the pile by means of a vertical branding wire or edge. For avoiding a number of associated drawbacks, a marking member is used which includes an axially slotted tube placed with a slot thereof engaging the pile side. The tube is connected with an injector for injecting into the tube a pulse of pressurized air holding a dyestuff powder, which is thus exhausted through the slot and into the pile side so as to intrude into the edge region of all the single fabric members and thereby provide a visible marking. The upper end of the tube receives a stopper piston having at its lower end a foot member projecting outwardly through the slot so as to be engageable with the top side of the pile and thus limit the operative length of the slot to the actual height of the pile.

Abstract: A marking method for forming a mark on an outer surface of an insertable portion of an endoscope. The endoscope includes an outer cover having braided metal wires around which a fluorine-containing rubber is impregnated. A marking solution includes a urethane resin paint or an unvulcanized, fluorine-containing rubber (as a different color marking material) is dissolved in a ketone, ester or ether solvent which is applied to the outer surface and then baked or vulcanized at a temperature of 100.degree. C. or higher, to produce a mark having strong adhesiveness.

Abstract: Apparatus for inspecting strip including metal strip includes inspection elements for monitoring a plurality of properties of the strip, a transport unit for passing the strip by the inspection elements and signal generators on the inspection elements for emitting a signal to a strip processing unit which emits a signal to a strip marking unit when one or more properties departs from predetermined limits. The strip marking system provides markings in one or more of a plurality of longitudinal zones on the strip responsive to signals indicating that one or more properties have departed from the desired limits with the particular zone identifying the particular property. A strip edge detector determines the edge of the strip and an actuator positions the marking unit in the desired transverse position relative to the strip so as to establish the zones where desired. The system may provide a printout identifying undesired properties and the particular longitudinal section of the strip where these appear.

Abstract: Method of making insulated conductor wire in which a homogeneous mixture of a dielectric carrier and magnetically permeable particles is sprayed onto the wire to deposit a layer of the mixture on the wire. The layer is then hardened to provide an insulating layer with the particles substantially uniformly dispersed therein.

Abstract: A system which utilizes a source of ultraviolet radiation to mark a surface or to cure selectively a photosensitive paint applied to a surface. The source of UV light is either a laser or a broadband source and the light is controlled by an aperture and/or a stencil apparatus. The photosensitive paint is applied by a controlled technique as a protective or a decorative coating.

Abstract: Apparatus for applying multiple narrow, closely spaced beads of viscous liquid, such as hot melt adhesive, to a substrate comprises first and second blades between which there is a thin shim having a plurality of parallel, closely spaced slots open to and in fluid communication with a slot cavity in one of the blades such that high pressure, viscous liquid supplied to the slot cavity exits onto the substrate from between the blades through the slots in the shim.

Abstract: A process for producing nonlinear resistance tracks on a supporting base uld be carried out in such a way that constant transitions are provided between the nonlinear resistance sub-ranges. For this purpose the supporting base is moved under a coating device at right angles to the longitudinal direction of the base strips provided whereby this coating device applies several strips of resistance paste onto the supporting base in the wet condition so that they are close to each other. The resistance pastes have different resistance values according to the set non-linear resistance pattern. The base strips are cut out of the supporting base at right angles to its direction of movement.

Abstract: Process for the production of contact strips on substrates, especially on plates of mineral glass. These substrates are provided with an electrically conductive surface coating which is coated on the side facing away from the substrate with at least one surface layer of a dielectric material. For the production of the contact strips, a noble metal suspension in a liquid is deposited according to the invention on the surface layer in the pattern of the contact strips. Then the substrate with the pack of layers is exposed to a heat treatment at at least 100.degree. C. until a lowered total resistance occurs through the conductive surface coating between the contact strips.

Abstract: Articles such as plastic containers for packaging are given a precisely controlled band of barrier coating material by a moving donor belt or a rotating wheel, the material having been first applied to the belt or wheel, e.g., by a jet such that excess material is removed before application to the articles. The remainder of the article can be coated if desired by another method.

Abstract: An apparatus for spraying heated hot melt adhesive in a relatively wide spray pattern comprises a manifold and at least two spray guns mounted side-by-side to the manifold. Each spray gun includes a nozzle having an adhesive discharge passageway which ejects a bead of hot melt adhesive, and a plurality of air jet bores which direct jets of pressurized air to the outer periphery of the adhesive bead to attentuate the bead forming elongated adhesive fibers and to impact a rotational motion to the fibers forming a spiral spray pattern.

Abstract: An apparatus for applying spaced apart discontinuous stripes of a fluid to the surface of a moving web. The apparatus includes a rotating applicator roll partially immersed in a bath of the fluid. A notched doctor blade in contact with the surface of the roll removes fluid from the surface of the roll except in the region of the notches to form spaced apart circumferential beads of the fluid on the surface of the roll. The moving web partially wraps the applicator roll where the beads are formed, but is travelling between 20 to 200 times the speed of the surface of the applicator roll, which results in a relatively even distribution of the fluid, in the form of a discontinuous stripe, on the surface of the web.

Abstract: Method for free surface casting an annular layer of film-forming liquid onto a substrate in a single pass by means of laminar flow through a slot die while the substrate and slot die are undergoing rotation relative to each other.

Abstract: A paper bag having a barrier material and a method of coating paper for use in making such a paper bag. The method comprises the steps of: continuously removing in a direction of travel a strip of paper from a source of paper at a predetermined speed; masking with a liquid impervious mask at least one longitudinal portion of the strip of paper in the direction of travel; routing the strip of paper and the mask through a bath of liquid barrier material, the liquid barrier material substantially saturating the strip of paper except for the masked portion; removing the mask from the strip of paper after moving it out of the liquid barrier material; and forming a selected length of the strip of paper into the bag. The paper bag has at least a front side and a back side each having at least one longitudinal portion extending the length of the bag. The longitudinal portion has a width less than the width of the front and back sides.

Abstract: A thin print etchable gold conductor composition for use in metallizing surfaces of substrates, particularly those used in the construction of miniaturized high density circuits is disclosed. The composition is formulated in such a manner so that it is capable of being printed onto a surface of a substrate as a very thin film.

Abstract: There is disclosed a color-image recording material comprising a support and a combination of two or more layers, provided on said support, which contain individually or in combination (a) microcapsules enclosing chiefly a photohardenable resin or microcapsules enclosing chiefly a photohardenable resin and a colorant, (b) a lightproof white material, and (c) a colorant, the layer containing the lightproof white material being provided directly or indirectly on a picture element layer in which two or more picture elements comprising a colorant or microcapsules enclosing chiefly a photohardenable resin and a colorant are arranged in a striped pattern or a mosaic pattern.

Abstract: Apparatus for applying multiple narrow, closely spaced beads of viscous liquid, such as hot melt adhesive, to a substrate comprises first and second blades between which there is a thin shim having a plurality of parallel, closely spaced slots open to and in fluid communication with a slot cavity in one of the blades such that high pressure, viscous liquid supplied to the slot cavity exits onto the substrate from between the blades through the slots in the shim.

Abstract: A fluid dispensing system comprises an automatic hot melt fluid adhesive dispensing gun block for dispensing the adhesive onto a surface rotatably connected to a working arm of a programmable working machine. A nozzle is attached to the gun block and communicates through a rotatable spindle on the gun block and a hose with a source of fluid. The gun block is rotatable about an axis extending perpendicularly through the nozzle and to the surface onto which fluid is dispensed. Fluid is dispensed from the nozzle in a direction parallel to the surface. The gun block is rotatable such that the nozzle can maintain a uniform orientation to the dispensed fluid regardless of the relative direction of motion between the gun block and the surface receiving the fluid. Methods of using the fluid dispensing system are disclosed.

Abstract: Said device comprises among other things, a metallizing apparatus through which is made to pass the plastic film (15) whereon the metallizing layer is to be deposited, and a new oil-delivery unit (21) which deposits a layer of oil onto the areas of the film which are to remain non-metallized. The oil delivery unit (21) evaporator is positioned so that the thin layer of oil only adheres to the film in a clearly defined area. The oil has been selected with great care from those available for sale.

Abstract: A method of and apparatus for the hot melt or other fluid coating and the web handling of lightweight low web-tension-supporting, non-woven and similar materials, having a novel nozzle region using entrance and exit web-supporting surfaces and positioning in order to compensate for web deflection caused by the fluid coating ejection forces that otherwise render the coatings non-uniform and destroy sharp leading and trailing edges of intermittent coatings.

Abstract: A saturator of the type which includes a chamber situated between a chamber defining element and a mandrel, in which a web is moved through the chamber to impregnate the web with a saturant contained in the chamber, includes a chamber defining element which defines an array of grooves. The grooves are separated by raised surfaces. The raised surfaces cooperate with the mandrel to pressurize the saturant in a high pressure zone which causes a relatively large amount of saturant to enter the web. The grooves define respective low pressure zones, which cause a reduced amount of saturant or no saturant to impregnate the web. A desired pattern of impregnation of the web can be obtained by properly positioning the grooves with respect to the raised surfaces on the chamber defining element.

Abstract: A process and apparatus for fabricating expandable honeycomb materials disclosed. The continuous length of material is folded along opposite side portions thereof into a generally flat tubular form having upper lower layers. Adhesive is then applied along the length of the continuous material by first heating the material, applying the adhesive in a liquid state to the heated material, and then cooling the material to solidify the adhesive. The folded tubular material with solified adhesive lines thereon is then wound about a rack in such a manner that the tubular material is deposited in a plurality of continuous layers one on another with the lines of adhesive being disposed between adjacent layers. The wound layers are then radially cut and placed in a vertically aligned stack while they are removed from the rack. The vertically stacked layers are then heated to a temperature sufficient to activate the lines of adhesive and bond the layers together.

Abstract: A tool for spreading plaster, or the like, on wallboard surfaces which, in a first embodiment, includes a contoured surface having two end tip portions and a mid-portion contained in a plane spaced from the end tip portions. The tool includes a backing layer which gives structural integrity to the tool, and a flexible application-surface layer which projects beyond the outer edge of the backing layer. In use, the plaster is applied to the wallboard surface, and the projecting outer edge of the flexible layer is forced against the wall and pulled along to obtain a flat surface to spread the plaster out along the wallboard surface in an even and smooth manner to cover up cracks and tape. In a second embodiment, approximately half of the tool has a contoured surface, with the other half being planar. In this embodiment, the tool is used to distribute the plaster along the general wallboard surface area.

Abstract: A decorative web or sheet of plastic material is obtained by spraying plastic material of different color and/or structure onto a carrier web by means of nozzles, the carrier web and the nozzles being movable in relation to each other, such that the nozzles can be placed over different, predetermined areas of the carrier web. The relative movement is controlled by means of a computer programmed with the desired web or sheet pattern. A suitable installation for carrying out the method has means for transporting the carrier web in one direction and carries nozzles which are movable parallel to the carrier web in two planes at right angles to each other. By means of the nozzles, plastic material is sprayed onto the carrier web in predetermined areas and to the desired thickness.

Abstract: A tubular metal object is rotated about its longitudinal axis and a layer of tape and synthetic thermosetting resin is wrapped around the object at room temperature. The object is inductively heated substantially uniformly through its thickness a plurality of times progressively from one end to the other subsequent to the wrapping to a temperature sufficient to allow the resin to flow on the outer surface of the object. The object is further inductively heated to a temperature at which the resin will cure, and the object is then cooled to room temperature.

Abstract: An improved integrated circuit structure characterized by enhanced step coverage and a method of making it are disclosed. The structure comprises a base layer of silicon, a first oxide layer on the silicon layer, strips of poly silicon having selected portions thereof reacted with a metal capable of forming a metal silicide in situ on the surface of the poly silicon strips, a further oxide layer over the metal silicide, and a metal layer providing electrical contact to selected portions of the structure. The construction makes it possible to remove all of an intermediate oxide layer during manufacture except for an oxide layer above the poly load resistor. This elimination of one oxide layer, together with the integration of the conductive metal silicide and underlying poly silicon into one layer and the rounding of the metal silicide edge with oxide spacers via anisotropic etching of the intermediate oxide layer, permits better step coverage for the resulting structure.

Abstract: The invention relates to a process, and the products thereof, for the nonslip finishing of surfaces of objects more especially packaging materials, by applying a hotmelt plastic. The hotmelt may be applied in the form of a microfine random-strand nonwoven, in which the filaments are essentially from 300 to 10 .mu.m and more especially from 150 to 30 .mu.m in diameter and are welded firmly together where they cross one another, or in the form of a foam, in which case the foamed hotmelt is applied to the surfaces by means of suitable applicators in the form of thin 1-5 mm strands separated by intervals of from 10 to 100 mm.

Abstract: A method and apparatus for drawing a thick film circuit on a substrate (2) by discharging a paste from a paste discharge hole provided at one end of a drawing nozzle (1), the drawing nozzle (1) being located close to the substrate (2) and relatively moved with respect to the substrate (2). The discharge rate of the paste is controlled in accordance with the relatively moving speed between the drawing nozzle (1) and the substrate (2), thereby preventing variations of film thickness and line width caused by variations in the moving speed and making it possible to form a thick film circuit at a high speed and with high accuracy.

Abstract: A vacuum vapor depositing system in which a plurality of vapor delivering nozzles fit between, and are guided by, bars supplying inert gas as barrier regions controlling the lateral spread of the vaporized material being deposited.

Abstract: A method of placing color indicia or tints on a porous surface includes the steps of forming a base layer on a surface, such as a floor, by applying a liquid layer of an unpigmented metal interlock acrylic finish to the surface, and allowing the base layer to dry. A pigmented layer of liquid metal interlock acrylic finish containing an acrylic polymer emulsion and pigment substance is then applied over the base layer in the form of an indicia, such as a decoration, advertisement, or pattern. After the pigmented layer has dried, a protective layer of liquid metal interlock acrylic finish is then applied over the pigmented layer and allowed to dry to protect the design, and the protective layer can be buffed to a shine. The method can be used to quickly and easily apply directional aids, advertisements, tints, or other colored indicia to a floor. Both the pigmented and unpigmented layers are readily removable with common detergents such as ammonia.

Abstract: Apparatus and procedure for applying a paint or like coating to an elongated strip article using a coating head having an open-sided slot to which coating material is supplied under pressure, and a support such as a roll around which the strip is advanced past the head for receiving from the slot a layer of paint metered between the head and the strip, wherein a load is continuously exerted on the head during operation for urging the head against the applied paint layer on the strip so as to maintain a uniform metering gap between the head and the coated strip surface. The load may be exerted by devices such as air cylinders acting on the head and capable of adjustment to vary the magnitude of the load for different coating operations.

Abstract: There is disclosed a method for flame-proofing of shingled roof coverings wherein the shingles are coated on at least their exposed sides with a flame-proofing composition and the roof covering is provided with at least one continuous bead of a flame-proofing caulking composition which extends coextensively with each course of the shingles, thereby sealing each course of shingles to the underlying or subjacent course of shingles. The preferred flame-proofing composition is a mixture of a thermoplastic, ambient-temperature, film former such as a polyvinyl acrylic acetate latex, and alumina trihydrate and glass fibers. The preferred caulking composition has the same composition and also contains a thixotropic ingredient to obtain a paste consistency. The film former is a conventional latex used for coating compositions and should have the property of softening at or below the dehydration temperature of alumina trihydrate (about 280 degrees F.) and be capable of forming a stable foam at such temperatures.

Abstract: A method and apparatus for coating the helical weld seam extending around a spirally welded pipe is disclosed. Following the application of the usual coating as by a sintered polyethylene coating process, the heated pipe is subjected to a further flow of the coating material from a hopper on a movable coating apparatus. The outlet chute of the hopper is aligned with the pipe and an operator drives a movable carriage carrying the hopper on a rail system extending parallel to the longitudinal axis of the pipe. The speed of movement of the carriage on the track is coordinated with the speed of rotation of the pipe on its longitudinal axis and with the pitch of the weld seam so that the outlet chute of the coating apparatus remains aligned with the weld seam of the pipe. The operator is provided with a lever which controls the material outlet so that a proper flow of coating material can be maintained.

Abstract: A process for the regulation or control of the flow of a viscous liquid, such as an adhesive or plastic substance, which is applied as seam (1) on a workpiece (2) by an applicator device (3) guided by a robot, whereby the viscous liquid of the applicator device is continuously supplied from a cylinder (7) in which a piston (9), shiftable by a drive mechanism (1) exerts a constant pressure on the liquid. According to the process, the path (x.sub.i) is measured which is passed by the piston (9) during the time in which the robot passes through a certain track section (n). The measured value (x.sub.i) for the piston path is compared to a set value (x.sub.s) for the piston path and the difference (x.sub.s -x.sub.i) is added during the subsequent passing of the same track section during the next work cycle, as a correction set value (K) algebraically to a basic set value (f.sub.sg) for a regulation or control of the nozzle opening of the applicator device (3).

Abstract: In order to apply a strip-shaped powder layer onto the inside of a can body to cover a welding seam of the can body in a controlled manner, the can body is moved in a predetermined direction over a spraying head transporting the powder, due to the kinetic energy imparted thereto by a moving air current, to an elongated opening of the spraying head. This elongated opening flow communicates with a spray chamber of the spraying head and is located opposite the welding seam of the can body. While the can body moves past the spraying head there is formed a strip-shaped powder layer at the welding seam without any cloud formation of the powder in the spray chamber.

Abstract: A preheater for melting a slab of thermoplastic marking material preparatory to applying a melt therefrom onto a paved surface has a heated slab receiver formed with a side wall oriented between 70.degree. and 82.degree. with respect to a reference ground plane upon which surface a slab may be flushly supported for heating and melt down.

Abstract: An advancing optical fiber (22) is marked with a plurality of spaced indicia along its longitudinal axis. The indicia are applied by an applicator wheel (56) in the form of a disc which is mounted for rotation about an axis which is transverse to the path of travel of the optical fiber. The wheel has a plurality of marking teeth (70-70) arranged about its periphery with each tooth provided with a groove (72) for receiving increments of length of the optical fiber as it is moved rotatably. As the wheel is turned, each tooth in seriatim compresses a porous, resilient pad (80) which is disposed to one side of the wheel in a chamber through which the optical fiber is advanced to cause ink from the pad to be received in the groove of each tooth. Further rotation of the wheel causes ink to be transferred from each groove to the moving fiber. The pad is supplied with ink through a tube by a peristaltic pump (90).

Abstract: Disclosed is a composite laminated film suitable for use in constructing trash and other bags, in which at least one layer of a non-woven fabric material of a density in the range of 0.125 oz. to 1.5 oz. per square yard is secured to at least one layer of a plastic film. A method of continuous manufacturing of the laminate film is also disclosed.

Abstract: A method for determining the contour of a spin-coated thin film of material, such as a photoresist solution, on an uneven topography, such as a patterned semiconductor wafer, utilizes a pattern of features as isolated, raised lines of different widths. The pattern serves to provide frequency weighted parameters used to estimate the coating conformality on both simple and complex topographies. One parameter indicating the contour is independent of coating thickness and the other parameter suggests the range of feature-to-feature interaction inherent in complex topographies. The pattern is useful as a "knock-out" portion of a product wafer to monitor the contour of the coating deposited by spun-coated process steps.Orienting the line pattern in radial and tangential position reveals coating thickness relationships dependent on feature orientation with respect to the centrifugal center of the substrate.

Abstract: There is disclosed a method of and apparatus for producing a wear-resistant coating on a thin metallic strip, for example for the manufacture of coating scrapers for paper webs. After preparatory surface treatment the strip is passed longitudinally through a coating zone in which coating material in a molten state is sprayed onto the strip by a coating unit as the strip passes. The wear-resistant coating is built up in steps by the application of several coating layers one on top of the other, each being applied during a respective pass of the strip through the coating zone. The strip speed and the capacity of the coating unit are adjusted in relation to each other so that the heat supplied to the carrier material by each coating layer applied will be so slight in relation to the thermal capacity of the carrier material that the temperature increase in the carrier material does not cause any change in the physical properties of the carrier material.