Abstract: A well tool such as a multiple string tubing hanger is installed remotely with the aid of a handling tool which has a hydraulically actuated component and a locator device movable between a retracted inactive position and an extended position in which the locator device engages in a locator slot in a surrounding member to orient the well tool in a predetermined rotational position relative to the surrounding member, a pressure fluid conduit of the handling tool being connected to the hydraulically actuated component and a valve associated with the locator device in parallel so that full pressure on the hydraulically actuated component cannot be built up except when the locator key is in its extended position.

Abstract: In devices, such as well tools, where two telescopically related members are telescopically related, the two members are connected together by a split ring in such fashion that loads are transferred from one member to the other via the split ring with the split ring accepting the load in compression.

Abstract: A process for separating molybdenite from copper and iron ores is disclosed. A copper concentrate containing molybdenite is treated during an attritioning stage with a surfactant which is an alkyl ester of sodium and/or calcium succinic or succinamic acids and a molybdenite concentrate is recovered by flotation. The molybdenite concentrate contains at least 90% of the original molybdenite and less than 5% of the undesirable ores.

Abstract: Hydroxyl-containing filler reinforced thermoplastic polymers, such as polyolefins, are disclosed having improved physical properties such as impact strength, break strength and flexural modulus. The filler is compatibilized with a thermoplastic polymer containing labile atoms by mixing the two together in the presence of a coupling agent, such as maleic anhydride and a free radical initiator such as a peroxide catalyst. In a preferred embodiment, clay is coated with polyethylene by mixing the two in the presence of a peroxide catalyst and maleic anhydride and the coated filler is then compounded with additional polyethylene. In another preferred embodiment, a filler is coated with a polyolefin having a high melt index and the coated filler is then compounded with a polyolefin having a lower melt index. Also disclosed are various means for molding the compatibilized composites of this invention.

Abstract: Oil-containing microcapsules are produced by emulsifying an oily solution of isocyanatoamidine products into an aqueous solution of emulsifier to form oil-in-water emulsion. The reactive isocyanatoamidine products are subsequently hydrolyzed into an impermeable capsule wall.

Abstract: A tool for modifying openings in carburetor jets includes a base, upwardly extending guide rods, a relatively heavy tool-carrying block slidable on the rods, and a plate for holding the jet or jets to be modified. The plate has locating openings and the base has a locating pin, the locating openings being spaced so that when the proper one is placed on the pin the selected jet is accurately located beneath a tool carried by the block. The block, with the proper tool installed therein, is then lifted and allowed to drop so that the tool reduces the jet orifice size. The tools have rounded ends and diameters to properly modify various jets.

Abstract: A washing machine comprises a casing body having a washing compartment therein, replaceable baskets rotatably supported in the washing compartment, a driving motor provided in the casing body, transmission gear sets engaged with the driving motor to rotate the baskets, tanks connected with a number of injection pipes for storing water and rinsing liquid, and a pump for pressuring the water or the rinsing liquid to be injected out of the injection pipes onto dishes placed in the baskets.

Abstract: This invention relates to an improved conveyor belt which has application in the area of agricultural machinery and a variety of industrial fields. More particularly, there is described a conveyor belt comprising a web woven from an extruded nylon cord and having a polyvinyl chloride coating with a plurality of transverse, spaced, vinyl slats heat sealed thereto. Preferably, the vinyl slats comprise an inner core or rigid vinyl and an outer main body of less rigid vinyl, and the rigid core has a T-shaped cross-section and the outer main body has an inverted T-shaped cross-section with a slot of corresponding shape to the inner rigid core for receiving same, and the inner core is secured to the outer main body with a polyvinyl chloride solvent.

Abstract: A temperature regulating device for electric heating apparatus has a thermostat for controlling the operation of the apparatus, the thermostat being thermally coupled to a regulation resistor connected in series with a resistor, the resistance of which varies as a function of temperature.The latter resistance is thermally coupled to a differential correction first heating resistance and to a shift correction second heating resistance, these two resistors having different time constants and being energized, respectively, when the heating apparatus is turned on by the thermostat and when it is turned off.

Abstract: Fishing lure bodies according to this invention comprise the combination of a main body composed of a soft, highly flexible, and resilient polymeric material, and at least a first, elongated appendage composed of a soft, highly flexible, resilient polymeric material having a low penetration resistance. The elongated appendage is coupled to the main body member in close proximity to the nose end thereof and has a thickness when relaxed and undistorted of between about 2 mm. and about 7 mm. The appendage has a length when relaxed and undistorted of at least about 2 cm. and is impaled axially by, and fully encloses the pointed end and barb of a hook. The combination of length, thickness and position of the coupling of the appendage to the main body together with softness, flexibility and low penetration resistance characteristics of the appendage are such that it functions as a weedguard. The bite of a fish causes the point and barb of the hook to penetrate outwardly through the appendage.

Abstract: A sleeve member (4) formed from a pipe length by expansion is placed over a mandrel onto which are wound the spaced turns (7) of a resistance heating wire (6). By heating sleeve member (4) the latter is shrunk onto the turns (7). By electrically producing heat in wire (6) material flows around the expanding turns (7) and embed the latter completely in sleeve member (4), projecting material portions (8, 9) being formed in the vicinity of turns (7). Thus, a protection against electric shock hazard is obtained for turns (7) and after-working is made unnecessary for the standing back edge portions of inner wall (5) which deform inwards during manufacture.

Abstract: A soft corneal contact lens comprising a soft, highly oxygen-permeable, polymeric lens having formed on the surface thereof an ultrathin, optically clear, impermeable barrier coating. The barrier coating is tightly cross-linked and comprises the reaction product resulting from an electrical glow discharge polymerization process conducted in a gaseous atmosphere and will prevent diffusion into the lens of lipids and other large molecules from the eye's tear film. The lens is formed from silicone or polyurethane. The gaseous atmosphere consists essentially of compounds selected from the group consisting of hydrocarbons; halogenated hydrocarbons; halogenated hydrocarbons and hydrogen; hydrocarbons and a halogen; and a mixture of any two or more of these compounds. The surface of the fully formed lens is highly hydrophilic which is accomplished during the polymerization process or in an additional step comprising glow discharge in the presence of oxygen or argon.

Abstract: A system for concentrating electro-magnetic radiation, such as solar radiation, by means of a plurality of reflectors mounted on a common frame and aimed at a radiation absorber that is rigidly coupled to the frame by an intermediate support. The combined frame, reflectors, absorber and intermediate support are coupled to a cantilever beam by means of a suspension assembly located between the absorber and the reflectors. This suspension is at the center of gravity of the combined frame, reflectors, absorber and intermediate support. The cantilever beam is coupled at one end to a main support and at the other to the suspension assembly. This suspension assembly allows the combined frame, reflectors, absorber and intermediate support to pivot relative to the beam about two perpendicular axes.

Abstract: An airport lighting system is provided with a plurality of groups of lights, each light group being assigned to a specific taxiway. The system further includes a selector switch to control a plurality of relay circuits for selecting and reselecting the light groups to be energized. Sequencing means automatically deactivates the regulated power prior to making new selections of light groups and thereafter returns the regulated power.

Abstract: Flowable food is fed by a vibrator unit to a weighing platform which is carried by a weighing support which moves downwardly as the food builds up on the platform, the weighing support and vibrator being temporarily stopped by stops at a location prior to a point corresponding to a preselected weight and thereafter being allowed to continue its weighing movement or discharge food therefrom as the case may be.

Abstract: A hinge assembly which allows pivotal movement between first and second panels of 90.degree. and which allows separation of the two panels. The hinge assembly comprises a first portion located on the first panel and having a lip extending substantially perpendicularly therefrom, a second portion located on the second panel, and a hinge member rigidly coupled to the second panel and having an arm defining a slot with the second portion, which slot receives the lip therein when the first and second panels are substantially perpendicular and receives the first portion therein when the first and second panels are substantially parallel.

Abstract: An elongated planar reversible shelf on which the opposite edges are curved so that one edge merges smoothly with one major face and intersects the other face at an angle of 90.degree., and the other edge merges smoothly into the other major face and forms a 90.degree. angle with the one. The faces and, if desired, the ends are covered with a wood or plastic veneer or laminate.

Abstract: A set of camping accessories comprising a range of accessories and hook-on clips, the clips being formed from two facing jaws provided with a common central clamping means and, at their ends, means for gripping, on the one hand, any body having a generally cylindrical shape and, on the other, a ball joint, each ball joint and each rear face of the accessories carrying either the male part or the female part of a rapid hook-on member.

Abstract: Pressure-rupturable, oil-containing microcapsules are produced by admixing a water-immiscible, oily material containing an oil-soluble, cross-linking agent, which is either a polyfunctional isocyanate or an orthoester of a group IV element with an aqueous solution of an emulsifying agent comprising starch having ether-linked aralkyl groups, to cross-link the emulsifier and form a capsule wall at the oil/water interface of the resulting oil-in-water emulsion around the oil droplets. The emulsifying agent is the sole co-reactant for the oil-soluble cross-linking agent.

Abstract: This invention relates to hinge structures. According to the present invention there is provided a hinged structure comprising a first gear segment, a second gear segment meshing with the first gear segment, and a link pivotally connected to each gear segment, the axes of the gear segments co-inciding with the axes of the pivotal connections between the link and the gear segments.