Abstract: A harness for the alleviation of back strain has members passing over the shoulders and around the thoraric region with attachments to a pivotable tension equalizing plate whereby the lumbar or lower back region is supported and a balance between the anterior and posterior muscle groups is attained.

Abstract: A belt flaw detector has a light source, a sensor, and processing and signalling means to indicate and warn of the flaw in the belt.

Abstract: A paint roller cleaner consists of a tubular body holding a paint roller covered, with a traversing nozzle spraying a liquid whereby the roller is cleaned after use.

Abstract: A lengthwise graphitization furnace for the conversion of a string of amorphous carbon bodies to graphite has an open semi-cylindrical shell of corrugated steel modules lined with cast refractory. The combination of the corrugated shell and cast refractory liner contributes to faster heat transfer by both convection and radiation, and to greater mechanical and thermal stability. The furnace is designed in modules allowing for easy replacement of worn components.

Abstract: The hydrogen sulfide content of the atmosphere over sour heavy fuel oils is controlled by the addition of choline to the fuel oil.

Abstract: An anode assembly for an electrolytic cell for molten electrolysis has a cermet connector with a lower electrical resistivity than the anode threaded into the cermet or ceramic anode in the green or calcined state and then sintered to form an anode assembly having a low joint resistance at the cell operating temperature.

Abstract: A refractory hard metal-metal composite is formed by impregnating a porous refractory hard metal article with molten metal.

Abstract: A porous graphite electrode for a fuel cell is formed by impregnation of a cellulosic filter paper by coating or impregnating with a low coke yield impregnant on the active center area and with a high coke yield impregnant on the edges, followed by curing, baking, and graphitizing the electrode to form a monolithic porous graphite electrode base with a dense low porosity area at the edges with a less dense higher porosity center working area.

Abstract: A cermet electrode assembly for use in an electrolytic cell is produced by the process of hot isostatic molding a cermet material onto a metal current member. The electrode assembly has long service life and can be joined to an electrical current source by conventional metal joining techniques.

Abstract: A monolithic bipolar electrode for the production of primary aluminum by molten salt electrolysis is composed of a cermet anodic layer 10, a conductive and diffusion-resistant intermediate layer 14, and a refractory hard metal cathodic layer 20, with the edges covered by an electrolyte-resistant coating. The intermediate conductive layer 14 has a coefficient of thermal expansion intermediate to the anodic and cathodic layers.

Abstract: A cathodic element for a Hall-Heroult aluminum reduction cell is formed from a refractory hard metal, preferably TiB.sub.2, in a generally mushroom-shaped configuration. The element is economical of raw materials and has improved thermal endurance when compared to a right cylinder or other element of uniform cross-section.

Abstract: A composite water-cooled electrode for electric arc steel furnaces comprises a tubular graphite body held in compression by means of tension stressed internal water supply pipe located between a metal header at one end and a hollow metal nipple at the other end of the electrode.

Abstract: A compressed air-powered retractor for an inert anode in a Hall-Heroult cell is actuated after power interruption by a time delayed solenoid actuating a valve controlling the air supply to a cylinder connected to the anode support structure.

Abstract: An electrode for an electrochemical cell comprising a variable cermet composition, the portion in contact with the electrolyte having a relatively high ceramic content for maximum corrosion resistance and the portion attached to the external electrical circuit having a relatively high metal content to facilitate an electrical connection. The electrodes vary in metal content from 5-80 vol. %, preferably 12-50 vol. %, either continuously or in graded steps. Preferred metals are Ni, Cu, Fe, and Cr; and preferred ceramics are ferrites.

Abstract: Graphite having a coefficient of thermal expansion of less than 5.times.10.sup.-7 cm/cm/.degree.C. over the range of 0.degree.-50.degree. C. is produced from premium petroleum cokes. The cokes are produced from feedstocks selected and blended on the basis of high resolution nuclear magnetic resonance spectroscopy of the hydrogen atoms in the raw material and multiple linear regression analysis of the various NMR bands as applied to a statistically significant number of feedstocks known to produce premium needle cokes together with a variable relating to thermal reactivity used to derive a predictive equation for the coefficient of thermal expansion.

Abstract: A composite electric arc furnace electrode comprises a heavy-walled tubular graphite body with a sealed inner bore, a hollow nipple, a central coolant supply pipe, and a metal header assembly. If the unit fails, it is disassembled, a new graphite main tube assembled with the metal parts, and the graphite tube consumed in the normal fashion as a tip electrode.

Abstract: An apparatus 12 is specially adapted to conserve time, energy, labor and enhance safety when loading a column 10 of cylindrical carbon electrodes or carbon bodies of uniform cross section in end-abutting relationship into a lengthwise graphitization furnace 20.After aligning a column of electrodes 10 on a stock aligning conveyor, a rigid truss 12 is fitted with chain slings 16, actuator mechanisms 14 and positioning jigs 59 holding the column 10 in precise axial alignment. Support or gooseneck structure 54 rests on the furnace structure and may be adjusted to center the column 10 vertically by shims 64 with respect to the head electrodes 22 of the furnace.

Abstract: An electrode for an electrochemical cell comprising a variable cermet composition, the portion in contact with the electrolyte having a relatively high ceramic content for maximum corrosion resistance and the portion attached to the external electrical circuit having a relatively high metal content to facilitate an electrical connection. Preferred metals are Ni, Cu, Fe, and Cr; and preferred ceramics are ferrites.

Abstract: TiB.sub.2 -graphite composite articles suitable for use as cathode components in a Hall aluminum reduction cell are made by impregnating a TiO.sub.2 -carbon composite with a boron compound and carbon black dispersed in water, or alternately by impregnating a boron or boron compound-carbon composite with a carbon black-TiO.sub.2 dispersion, and heating the article to a reaction temperature whereby TiB.sub.2 is formed and the amorphous carbon converted to graphite. The article may be impregnated with a carbonizable liquid, re-baked, and re-heated to a graphitizing temperature to increase its strength and density.

Abstract: A composite electrode for an electric arc smelting furnace has a metal liquid cooled upper clamped section, a consumable graphite lower section and a metal liquid cooled connecting pin. The upper section is fitted with loosely fitting arcuate graphite segments (46) over the area of the electrode held in the electrode power clamp during furnace operation.