Showing papers by "Kaiser Aluminum published in 1969"

Panel assembly and method

Abstract: THIS INVENTION RELATES TO AN IMPROVED LOAD SUPPORTING AND LOAD TRANSFERRING PANEL SYSTEM FOR USE IN LANDING MAT INSTALLATIONS AND THE LIKE COMPRISED OF A PLURALITY OF REMOVABLY INTERLOCKED PANELS AND WHEREIN THE JOINTS FORMED BY THE VARIOUS MARGINAL EDGES OF THE INTERLOCKED PANELS ARE PROVIDED WITH IMPROVED COOPERATING LOCKING AND SEALING MEANS TO PREVENT THE PENTRATION OF WATER AND THE LIKE THROUGH THE JOINT STRUCTURES AS WELL AS TO FACILITATE INSTALLATION OF THE OVERALL PANEL SYSTEM AND ACCESS TO INDIVIDUAL PANELS THAT MAY BECOME DAMAGED IN USE.

Control of continuous casting

Abstract: A method for metal casting in a direct-chill continuous mold having an insulated feed reservoir. The feed reservoir is axially aligned with the mold and has an overhang over the mold face of not more than one-eighth inch. The casting speed for the metal is established so that the upstream conduction distance which is measured from the liquid wetting line of the chill liquid on the ingot surface extends to within about 1 inch of the reservoir. The casting speed and upstream conduction distance are controlled to satisfy a critical relationship which gives control over the heat transfer during the casting operation. During the casting, the mold wall temperature should not fluctuate more than about + OR - 25* F. per cycle when the temperature cycling rate is from about 0.5 to about 10 cycles per inch of length of metal being cast.

Remote input management system

Abstract: This invention is a number of digital computer programs and a method of recording and indexing data for use with a centrally located computer and remote terminal equipment. Methods according to this invention enable a user of remote terminals, either teletype, computer or video, to have access to all computing and data handling functions of a central computer system via a connecting telephone line.

Process for integral color anodizing

Abstract: A process for integral color anodizing of aluminum and aluminum alloys wherein the aluminum piece is subjected as an anode to electrolysis in an aqueous solution containing sulfuric acid, and at least one compound selected from the group consisting of molybdates, tungstates, vanadates and manganates, a portion of which exists in a polyacid species.

Conveyor system for a container

Abstract: Improved conveyor system for transferring containers and in particular lightweight aluminum cans between stations in a container production plant and the like wherein novel means are provided for holding the container in firm engagement with a conveyor belt element at all times, including periods when the container''s direction of travel is sharply or gradually changed during its passage between stations.

Second-variation methods in dynamic optimization

Abstract: An entire class of rapid-convergence algorithms, called second-variation methods, is developed for the solution of dynamic optimization problems. Several well-known numerical optimization techniques included in this class are developed from a unified point of view. The generalized Riccati transformation can be applied in conjunction with any second-variation method. This fact is demonstrated for the Newton-Raphson or quasilinearization technique.

Aluminum-anodizing process

Abstract: This invention generally relates to the anodic oxidation of aluminum articles in an aqueous sulfuric acid electrolyte. More particularly, this invention is directed to improving the corrosion resistance of the clear, colorless anodic oxide coatings formed in an aqueous sulfuric acid anodizing process by utilizing an aqueous electrolyte containing 7 to 12 percent sulfuric acid and 0.25 to 0.80 percent chromic acid.

Process for producing fine particle size alumina hydrates

Abstract: FINE PARTICLE SIZE ALUMINA HYDRATES, CONSISTING ESSENTIALLY OF A MIXTURE OF NORDSTRANDITE AND BAYERITE, ARE MADE. THE MIXTURE IS OBTAINED BY SUBJECTING A SODIUM ALUMINATE SOLUTION OF HIGH ALUMINA AND SODIUM HYDROXIDE CONCENTRATION TO DILUTION UNDER CONTROLLED CONDITIONS. THE PRECIPITATED ALUMINA HYDRATES CONSIST ESSENTIALLY OF A MIXTURE OF NORDSTRANDITE BAYERITE WHICH, DUE TO THE FINE PARTICLE SIZE DISTRIBUTION AND HIGH SURFACE AREA, PROVIDE AN EXCELLENT CATALYST BASE UPON CALCINATION. THERMAL TREATMENT OF THE MIXTURE AT ELEVATED TEMPERATURES RESULTS IN AN ACTIVATED ALUMINA OF ESSENTIALLY ETA STRUCTURE.

Electromagnetic feeding device

Abstract: AN IMPROVED ELECTROMAGNETIC DEVICE FOR USE IN FEEDING CUP-SHAPED WORKPIECES AND THE LIKE TO AN ARTICLE FORMING APPARATUS OR PRESS OF THE TYPE SHOWN, FOR EXAMPLE, IN U.S. PATENT 3,314,247 TO C. LANGEWIS, GRANTED ON APR. 18, 1967. THE ELECTROMAGNETIC DEVICE INCLUDES A CHUTELIKE ELEMENT AND AN ELECTRICALLY ENERGIZABLE STATOR MEANS ASSOCIATED THEREWITH WHICH OPERATES TO GENERATE AND MAINTAIN AN ELECTROMAGNETIC FIELD RELATIVE TO A METAL WORKPIECE DISPOSED WITHIN THE CHUTE-LIKE ELEMENT IN ORDER TO EFFECT ADVANCEMENT OF THE WORKPIECE ALONG THE CHUTELIKE ELEMENT TO A POSITION WHERE IT CAN BE READILY ENGAGED BY THE RAM OF THE PRESS AND THEREAFTER ADVANCED BY THE RAM THROUGH ONE OR MORE FORMING DIES OF THE PRESS.

Recovery of valuable components from magnesium cell sludge

Abstract: Method for recovering valuable components from a molten admixture of fused magnesium salt, disperse magnesium metal and other substances, e.g. magnesium electrolytic cell sludge, including holding such admixture in fused state, under a fluoride-containing protective flux for magnesium metal, to form a layer of magnesium dispersed in a sludge and a separate layer of purified magnesium salt, withdrawing the metal-containing layer to a refining zone and thoroughly admixing therewith a metal-collecting magnesium fluoride-containing flux to form a layer of separated magnesium metal and a layer of residual sludge containing magnesium metal, recovering the separated metal, the residual sludge can then be admixed with an amount of fluoridecontaining flux to form a eutectic having a lower melting point than that of magnesium metal, maintaining such eutectic in molten form below the melting point of magnesium metal, and mechanically recovering magnesium metal therefrom, the protective and metalcollecting fluxes being substantially free of alkaline earth metals other than magnesium.

Method for arrangement and indexing of digital data in storage

Abstract: A method of arranging digital data so that it may be most efficiently located and read out. Two levels of indices are used to locate each data record, a ten word or eighty character block of data. A single high level index tag refers to one of a plurality of secondary level index tags which, in turn, refer to the data record. The block containing the high level index tag also contains various file information.

Electrolytic reduction cell

Abstract: IMPROVED ELECTROLYTIC REDUCTION CELL FOR PRODUCING MOLTEN MAGNESIUM METAL AND THE LIKE AND MADE UP OF UNIQUELY AND REMOVABLY ARRANGED OUTER AND INNER SHELLS HAVING A MASS OF THERMALLY RESISTANT MATERIAL INTERPOSED THEREBETWEEN AND WHEREIN THE INTERIOR OF THE CELL IS DI- VIDED IN AN IMPROVED FASHION INTO FEED AND ELECTROLYTIC CHAMBERS

Kiln preheat and drying section

Abstract: An improved kiln preheat and drying section comprising an inner shell concentric and axially aligned with the kiln shell, and provided with a means to feed raw material to be processed into the inner shell and means to feed dust into the annular space defined by the inner shell and kiln shell; and a process for operating the improved preheat and drying section.

Mold system and apparatus for producing a composite panel

Abstract: An improved mold system and apparatus for producing a composite building panel comprised primarily of a foam backed plank, wherein during manufacture of the panel means are provided for selectively applying and holding a moisture impervious envelope about a foamable backer material in such a fashion that the envelope can assist in molding the foamable material into the desired shape during the foaming and curing thereof and thereafter serve as a moisture impermeable membrane in the finished product.

Determining optimum reject allowances for deteriorating production systems

Abstract: Since most manufacturing processes inevitably produce some defective items, it is common practice to produce a quantity larger than the actual order size. This excess is called a reject allowance. In this paper we consider production processes which undergo stochastic deterioration and demonstrate that under appropriate conditions a smallest optimum reject allowance exists and can be easily computed. We also investigate the optimality of periodic process inspections and show that in some cases one can do better by following an (r, R) inspection-processing policy.

Method of forming transition insert material

Abstract: A method for forming long lengths of trilayer and bilayer composite material for transition inserts comprising preparing a prebond pack containing at least an aluminum facing plate, a ferrous plate, and aluminum side bars, having substantially the same deformability as the facing plate, attached to face of the aluminum plate adjacent to the ferrous plate, heating the pack to a temperature between 400 and 900 degree F. and subjecting the pack to a one-step reduction to reduce the thickness of the aluminum materials adjacent to the ferrous element by a least 12%, preferably between 20 and 50%.

Purification of aromatic diisocyanates

Abstract: AROMATIC DIISOYANATES ARE TREATED WITH ZINC-FATTY ACID SALTS TO REMOVE HYDROLYZABLE CHLORINE AND ACIDIC IMPURTITIES. THE DESIRED RESULTS ARE OBTAINED BY UTILIZING DIISOCYANATE-SOLUBLE ZINC-FATTY ACID SALTS WHICH CAN BE SEPARATED FROM THE TREATED DIISOCYANATE BY SIMPLE DISTILLATION AND WHICH ARE ADDED TO THE DIISOCYANATE IN AN EFFECTIVE AMOUNT SUFFICIENT TO REDUCE THE HYDROLYZABLE CHLORINE AND THE ACIDIC IMPURITY LEVEL. THE TREATED AND DISTILLED DIISOCYANATES ARE SUITABLE FOR THE PRODUCTION OF COLORLESS POLYURETHANES.

Cladding mold system

Abstract: Improved cladding mold system for use in cladding an elongated metallic rail element and the like wherein special floating guide elements are employed to guide the rail element into, through and then out of the cladding zone as successive portions of the rail element are first passed through the cladding zone and upon completion of the cladding operation are then withdrawn from the cladding zone by means of a common hoist device.

Handler program for remote input management system

Abstract: A digital computer program in the ALGOL language for interfacing between remote hardware terminals and a program entitled Main Processing Program. This program passes all data to and from the remote terminals and the Main Processing Program.

Color anodizing in an inorganic electrolyte

Abstract: A process for the color anodizing of aluminum comprising subjecting the aluminum, as an anode to electrolysis in an aqueous electrolyte containing sulfuric acid and dichromate ions.

Control system for container manufacturing apparatus

Abstract: Improved device for sensing and replenishing fluid losses in selected portions of a closed fluid driving circuit within which a piston is mounted, said piston having at least one punch means attached to each side thereof so as to effectively regulate the amount of travel of the piston in either direction at all times as well as the punches attached thereto.

Recursive kopy program for remote input management system

Abstract: A program and concept whereby a formatted file or limited size may be expanded to a size limited only by computer hardware. The program is written in ALGOL. It is part of a software system in a data processing system.

program for remote input management system

Abstract: THIS INVENTION IS A DIGITAL PROGRAM WRITTEN IN ALGOL. ITS FUNCTION IS TO SCHEDULE PROGRAMS STORED IN A CERTAIN FORMAT FOR EXECUTION AS ORDERED BY THE INPUT AT A REMOTE TERMINAL IN A DATA PROCESSING SYSTEM. IT IS PART OF A SOFTWARE SYSTEM IN A DATA PROCESSING SYSTEM.