Abstract: Novel compositions comprising calcium hypochlorite and a hydrazide of a monocarboxylic acid containing from about 10 to about 24 carbon atoms have been produced. The compositions provide accurately controlled concentrations of available chlorine to bodies of water such as swimming pools by reducing the solubility of the calcium hypochlorite.

Abstract: Method and apparatus for electrically perforating a moving web such as paper, film and the like in which the web passes between spaced, charged and ground electrodes adapted to move at right angles to one another, including a flat plate for supporting said web as it passes between said spaced electrodes having a narrow slot in which the ground electrode travels parallel to the surface of said plate, said surface recessed along both sides of said slot to provide a collection area for particulate matter produced from perforating said web and means for removing said particulate matter from said collection area.

Abstract: An improved metal anode assembly formed as in integral titanium casting which is comprised of a spider-like distributor having an anodic surface secured to the bottom thereof. At least one anode post receiver is formed in the top of the distributor. The active face of the anodic surface is coated with at least one oxide of a platinum group metal. Utilizing cast titanium to form the distributor, the anode post receiver and the anodic surface of the metal anode assembly of this invention simplifies fabrication of the metal anode assembly and improves the durability and stability of the metal anode assembly.

Abstract: A process for preparing anhydrous metal fluorides is described wherein metal is reacted with HF and halogen in the presence of a nitrile.

Abstract: A highly conductive and corrosion resistant low hydrogen overvoltage cathode. The cathode comprises a copper substrate plated with an alloy of nickel, vanadium, and molybdenum.

Abstract: A container cover is provided which prevents young children from gaining access to the container's contents. The container has an opening at one end and a latch lip adjacent to the opening. The cover comprises a plate having at least one opening and a handle secured to the plate and having at least two grips, a releasing grip and a non-releasing grip. Two latching means secure the plate to the latch lip, one of the latching means is attached to the releasing grip and passes through the plate opening. The releasing grip has means for releasing the latching means such as lifting, sliding or rotating.The container may be used for containers for materials which may be harmful if handled or ingested.A particular application of the cover is on a magazine for soluble solids to be dissolved by a liquid, for example, in treating swimming pool water. The magazine is a component of an apparatus for dissolving and dispensing soluble material including a container having an upper and a lower chamber.

Abstract: A porous anode separator for an electrolytic cell for the electrolysis of alkali metal chloride solutions comprises a porous valve metal plate having an electrochemically active coating on the face and a barrier layer on the back and on a portion of the interior. The barrier layer comprises a mixture of a valve metal oxide with a ceramic oxide. Suitable ceramic oxides include those of silicon, aluminum, magnesium, and calcium. The electrochemically active coating comprises a platinum group metal or metal oxide. The porous anodes provide improved gas separation and permit a substantial reduction in the amount of platinum group metal required for the electrochemically active coating.

Abstract: A novel compound is described which is useful as a reversible oxygen carrier. This chelate compound is bis(3,5-difluorosalicylaldehyde)ethylenediimine-Co.sup.+.sup.2.

Abstract: A reticle illuminator for a reflex sight having a light gathering rod mounted in a housing which in turn is mounted on the sight barrel or housing. The rod is exposed to ambient light and emits fluorescent light to illuminate the reticle. A magnifying lens is focussed on the rod to intensify the brightness of the ambient light which strikes the rod. The rod housing has a number of component parts for easy assembly and disassembly.

Abstract: An improved progressing cavity pump of the Moineau type having a helically externally threaded rotor coacting with an internally helically threaded stator. In a Moineau pump where the pump casing is a singular tubular unit, the stator is bonded to the casing with an adhesive. When the pumps are used with a corrosive fluid, such as caustic soda, the adhesive is attacked and the stator becomes free to rotate. To prevent the stator from rotating, a rib is attached along a portion of the casing. The rib restrains the stator and prevents its rotation.

Abstract: Apparatus and method for electrically perforating a moving web such as paper, film and the like by passing the web between at least one electrically charged electrode and a ground electrode in a perforating unit, the charged electrode comprising a member adapted to rotate in a direction parallel to the direction of the moving web and connected to an intermittent high voltage source and the ground electrode comprising means adapted to move in a direction at right angles to the direction of rotation of the charged electrode.

Abstract: An elastomeric tip member for mounting on the piercing end of a nail-like fastener. The tip member has a forward end having means on its exterior for providing an interference fit with the wall of a hole through a bracket or the like into which the tip member is inserted. The tip member is preferably formed from a plastic material which will break up when the fastener is driven into a supporting material. The tip member thus provides an expendable temporary connection between the fastener and the bracket prior to driving the fastener into a supporting material to secure the bracket thereto.

Abstract: An improved means for connecting anode posts to diaphragm cell bases is described which utilizes an interior layer having a liquid-tight sealing means for each anode post. In addition, each anode post is secured to a separate opening in the cell base with solder to provide a good conductivity connection.In a preferred embodiment of the sealing means a non-metallic tube is secured at its lower end to the interior layer and at its upper end to the anode post by an adjustable clamp to obtain a liquid-tight seal.

Abstract: A method for the measurement of amounts of free available halogen in solution which is independent of the pH has been developed. The method comprises providing a sensing electrode having a porous conductive component and a reference electrode in a measuring zone, and connecting a potential measuring means between the sensing electrode and the reference electrode. An aqueous solution containing an available halogen is introduced into the measuring zone to contact the sensing electrode and the reference electrode. A pH control solution is passed through at least a portion of the porous conductive component. The free available halogen concentration is measured and indicated on the potential measuring means.Employing the method, residual amounts of an oxidizing or reducing agent in solution can be continuously measured, independent of the pH of the solution. In addition, the electrode surface is continuously cleansed by the pH control solution.

Abstract: Shot pellets formed from finely divided powder adhered together in pellet form by a thermoplastic polymeric material decomposable in the acid environment of the digestive tract of waterfowl.

Abstract: An electrolytic cell of the type having a plurality of anodes and at least one foraminous cathode. The cell includes an anode mounting plate to which the anodes are connected. The anodes have associated therewith a mounting post which is attached to the anode mounting plate of the cell by attaching means which can be used to vary the spacing between the anodes for reception of the cathodes. The attaching means includes a crank member which, upon rotation thereof, moves the mounting posts laterally with respect to the anode mounting plate.

Abstract: An adjustable electrode for use in electrolytic cells is provided. The electrode comprises two rectangular electrode surfaces positioned in parallel and having a space between them. Two electrode posts are located in this space and have resilient conductive means to attach one electrode post to one electrode surface. Contractible means are attached along two non-adjacent edges of the electrode surfaces positioned outside of the space between the electrode surfaces. Clamping means are attached to the contractible means to vary the space between the electrode surfaces.The adjustable electrode, employed for example in the electrolysis of alkali metal chlorides, has adjusting means which are readily accessible and where the inter-electrode spacing can be conveniently changed.

Abstract: An adjustable electrode for use in electrolytic cells is provided. The electrode comprises two electrode surfaces positioned in parallel and having a space between them. Two electrode posts are located in this space, one electrode post being rigidly attached to one electrode surface. Removable clamping means are attached to the upper portion of the electrode surfaces. The clamping means are positioned outside of the space between the electrode surfaces.The adjustable electrode, employed for example in the electrolysis of alkali metal chlorides, has adjusting means which are readily accessible and where the inter-electrode spacing of the upper portion of the electrode surfaces can be conveniently changed.

Abstract: Corrosion inhibiting compositions are described which contain a hydrazine compound, an organometallic complex and a quinone compound. The organometallic complex is the reaction product of a cobaltous, manganous, or cupric inorganic salt and one or more aromatic ligands containing at least two hydroxy or two amino functional groups, or at least one amino and one hydroxy group, in the ortho position with respect to one another. The quinone compound is one which renders the composition compatible with chelating phosphonate scale control agents. The use of these compositions as oxygen scavengers in corrosive environments is also described.

Abstract: Pentachloronitrobenzene having less than 0.6% hexachlorobenzene is prepared by reacting pentachlorobenzene with mixed nitration acid at a temperature in the range of 100.degree.-120.degree. C then heating the reaction mixture to an intermediate temperature to deplete excess nitric acid prior to melting and recrystallization.