Abstract: A ski includes at least two sections interconnectible end-to-end, one section having a recess sunk in an end portion thereof and the other ski section having a tongue projecting from an end portion thereof, the recess and tongue shaped to closely interfit when the ski sections are assembled, end-to-end, thereby to provide a full length ski, there being structure to positively and releasably interconnect said end portions in assembled condition. A method of forming the ski assures tight interfit of the recess and tongue; and the tongue cannot be inadvertently pulled from the recess.

Abstract: A coated metallic dental crown and orthodontic appliances which are coated with a thin layer tooth-colored polymer which resembles the normal tooth. The appearance of temporary dental crowns and orthodontic appliances is metallic and the coated crowns and appliance blend with the teeth to give a more pleasing appearance in the mouth.

Abstract: A glass sheet is provided with a coating which will automatically reflect infrared radiation if the ambient temperature is above about 45.degree. F.-60.degree. F. Such a coating is placed on the exterior surface of the glass. Additionally, the interior of the glass may be provided with a controllable infrared transmittable or reflective layer of material which is activated by means of an electric current transmitted therethrough and which will reflect infrared energy if so energized, but otherwise will transmit such infrared energy. This layer of material is preferably placed on the interior of the glass surface and activated during the nighttime period so that infrared energy is not transmitted outwardly. Alternatively, the controllable infrared transmittable or reflective layer of material may be positioned both on the exterior and interior of the glass surface.

Abstract: A cemented carbide article or part having a hard coating excellent in heat shielding effect and initial wear resistance is described in which the hard coating comprises an inner layer of TiC and an outer layer of TiC, and an intermediate layer, provided between the inner layer and outer layer, consisting of at least one layer selected from the group consisting of a single layer of TiN and a composite layer with such a structure that a TiN layer is sandwiched in between TiCN layers.

Abstract: Adherence coatings and methods for forming same are provided. Generally, the adherence coatings are utilized in combination with exterior wear-resistant coatings of, for example, at least one non-metallic element and a transition metal.The composition of the adherence coating is selected on the basis of the substrate and exterior coating compositions and generally contain one or more metallic elements. The adherence coating can be applied by sputtering, desirably in a manner to produce a columnar microstructure.

Abstract: A coated cemented carbide product comprising a cemented carbide substrate and a dense chemical vapor deposited coating having a microstructure of at least two simultaneously co-deposited phases which form a composite layer. The microstructure of the composite layer has one phase dispersed either as discrete particulates or as oriented fibrous, rod-like or columnar particulates in the other phase.

Abstract: A composite sintered abrasive drill blank for formation into a rotary cutting tool in which one or more veins of sintered abrasive particulate are positioned to extend longitudinally from the conically shaped point region of the drill blank. The one or more veins of abrasive particulate are directly and molecularly bonded into the drill blank structure to expose the sintered abrasive particulate at both the top conical surface and the circumferential edges of the drill blank, with the sintered abrasive particulate forming the cutting surface elements of the rotary cutting tool formed therefrom.

Abstract: A glass sheet is provided with a coating which will automatically reflect infrared radiation if the ambient temperature is above about 45.degree. F.-60.degree. F. and will transmit infrared radiation if it is below about 45.degree. F.-60.degree. F. Such a coating is placed on the exterior surface of the glass. Additionally, the interior of the glass may be provided with a controllable infrared transmittable or reflective layer of material which is activated by means of an electric current transmitted therethrough and which will reflect infrared energy if so energized, but otherwise will transmit such infrared energy. This layer of material is preferably placed on the interior of the glass surface and activated during the nighttime period so that infrared energy is not transmitted outwardly. Alternatively, the controllable infrared transmittable or reflective layer of material may be positioned both on the exterior and interior of the glass surface.

Abstract: Coatings and methods for forming same are provided. Generally, the coatings are wear resistant disordered coatings of at least one nonmetallic element and a transition metal that are deposited on an article surface, such as a tool surface or other surface that is subjected to wear or friction. The resulting tools generally exhibit increased life with excellent lubricity thereby improving the surface finish of workpieces machined therewith.Adherence coatings are provided for achieving improved adherence of the wear resistant coating to the substrate.

Abstract: A treating solution for use in impregnating a paper sheet material useful in the preparation of electrically conductive high-pressure thermoset laminates, which treating solution comprises in combination: an aqueous resin solution which includes a heat-curable thermosetting formaldehyde-type resin; and, an electrically conductive amount of a quaternary ammonium compound sufficient to impart an electrical resistivity of about 10.sup.10 ohms per square inch or less to the impregnated thermoset paper sheet material.

Abstract: A radiation image storage panel comprising a support, a phosphor layer which comprises a binder and a stimulable phosphor dispersed therein and a protective film, superposed in this order, characterized in that a thin film comprising an inorganic material is provided on a surface of the panel.

Abstract: The invention herein comprises methods and products for attaching a crown replacement on an endodontically treated tooth. The superior surface of the tooth is shaped to receive the base of the crown replacement and an interior space is machined into the root canal to accept placement of a post. The instrumented area is then flushed with a chelating agent followed by an organic solvent. A cementing medium having great compressive strength is placed around a post fitted into the cavity. After the cement has set, a quantity of filler material is placed around the remaining exposed part of the post. This post forms the support for the crown replacement. If desired, a preformed crown replacement may be placed over the cemented structure until a permanent crown can be made.

Abstract: A planar mounting board for needlework designs includes a multiplicity of evenly spaced perforations or holes along the periphery thereof to facilitate the precise mounting thereto of a canvas or fabric containing a completed needlework design by stitching the canvas or fabric to the mounting board through the perforations therein.

Abstract: Flexible non-distortable handcraft sheet materials, including needlework fabrics, adaptable for receiving printed designs, patterns, photographs and craft instructional information and the methodology for producing the materials with the designs, patterns and photographs and instructional information printed thereon. Material alignment and feed features are located along the parallel edges of the materials for moving same through a computer-directed printer. In accordance with the methodology visual information in the form of designs, patterns, photographs, flat art work, still objects, live objects, etc. is converted into digital information through a digitizer with the digitized image information thereafter fed to a computer for manipulation and editing by software and keyboard direction and for conversion to visual image information for CRT display and for utilization by a computer printer as imprinted graphic information.

Abstract: A process of manufacturing a ski, particularly a laminated ski, which is composed of a plurality of components, and a ski manufactured by that process. In the process, the components of the ski are placed into a mold, which is adapted to be evacuated, and the mold is subsequently evacuated. A liquid binder, such as a liquid resin, is supplied to the mold during or after its evacuation. Air is sucked from the mold at one end of the longitudinal extent of the ski. The liquid binder is supplied to the mold at the other end of the longitudinal extent of the ski. In the finished ski a strip of solidified binder extends in at least one vertical or horizontal longitudinal plane of the ski, preferably in a central longitudinal plane of the ski, over at least part of the length and preferably over at least one half of the length of the ski.

Abstract: An ornament coated with silicon carbide having black luster which has been formed by chemical vapor deposition aided by D.C. glow discharge using hydrogen, a silicon compound and a hydrocarbon.The black ornament according to the present invention is very suitable for a case of a watch, a frame of eyeglasses and so on.

Abstract: A plate adapted to form a device for protecting a human body or the like has one surface formed in a plane at an angle with respect to the plane of an opposing surface. Pairs of such plates with the angled surfaces abutting can be enclosed in pockets formed in a flexible material to provide a sheet of protective material. A plurality of pairs of the plates can be arranged in overlapping pockets in rows and columns to form a protective vest or coat.

Abstract: A glazed ceramic base is disclosed comprising a ceramic base having provided and calcined thereon a glaze composition comprising from 56 to 71 mol % SiO.sub.2, 15.5 to 28 mol % BaO, and 6 to 16 mol % Al.sub.2 O.sub.3 as necessary ingredients, and one or more members of up to 10 mol % SrO, up to 8 mol % B.sub.2 O.sub.3, up to 10 mol % CaO, and up to 3 mol % MgO as a first group of auxiliary ingredients, with the combined content of the first group of auxiliary ingredients being not more than 10 mol % of the total content. This glaze composition may comprise a second group of auxiliary ingredients.

Abstract: An article is provided comprising a plurality of straight spaced parallel extruded elements separated by a regularly undulated extruded element having an aspect ratio of at least about two, with undulations having opposed apexes on either side thereof, with apexes on one side of the undulated element being bonded to one of the parallel extruded elements and the apexes on the other side of the undulated element being bonded to the other of said parallel extruded elements.

Abstract: A method for reducing sensory nerve activity in a hypersensitive tooth and for desensitizing hypersensitive dentin involves applying to the surface of exposed dentin of a subject's tooth a potassium salt selected from the group consisting of potassium bicarbonate and potassium chloride in an amount effective to reduce sensory nerve activity and to desensitize hypersensitive dentin of hypersensitive teeth.In the presently preferred embodiment of the invention, potassium bicarbonate is the potassium salt and is applied in a formulation, for example, an aqueous solution containing from about 1.0 to about 360.0 mg of potassium bicarbonate per ml of solution.