Abstract: A valve has a body containing three ports, and a rotor is rotatable in the body, the rotor rotatable about an axis to bring two passages in the rotor selectively into and out of registration with the body ports, the body ports opening at a cylindrical bore in the body, and the rotor passages opening at a cylindrical periphery of the rotor, the rotor passages spaced about said axis. The valve also includes:(a) axially spaced seal rings extending about the axis between the rotor and the body, the rings spaced at axially opposite sides of the passages and ports,(b) at least three seal strands extending between the rings and integral therewith, with first and second strands spaced apart about the axis at angularly opposite sides of one of the rotor passages, and the second strand and a third strand spaced apart about the axis at angularly opposite sides of the second of the rotor passages.

Abstract: A post emulsifiable penetrant composition for applications and entry into flaws in solid surfaces consists essentially of(a) a first solvent ingredient comprising a high boiling point aromatic hydrocarbon,(b) a second solvent ingredient selected from the group that includes di-phthalates and diesters,(c) epoxidized material selected from the group that consists of epoxidized esters, oils and resins,(d) fluorescent dye, and(e) fluorescent brightener.

Abstract: A valve has a body with multiple openings and a rotary valve member rotatable in a body cavity to control flow through the openings. A fixed closure member extends over one of the body openings, and a valve member control extends through the closure. A drain passage has a first portion in the fixed closure and a second portion in the rotary valve member. Those portions are brought into registration when the rotary member is in one position of flow control.

Abstract: The production of a toughened, mar-resistant floor film includes the steps:(a) applying to a floor surface a liquid solution containing a cross-linking ingredient,(b) and buffing said floor surface with said solution thereon in moist condition to heat the solution and surface and produce cross-linking of said ingredient with the floor surface.

Abstract: A process for sealing a phosphate coating on metal includes the steps:(a) wetting the phosphate coated metal with a composition consisting essentially of an aqueous acidic solution containing at least one member selected from the group consisting of hypophosphorous acid, salts of hypophosphorous acid and sodium hypophosphite,(b) and then drying the thus wetted phosphate coated metal.The solution may also contain another member selected from the group consisting of iron, steel, zinc and aluminum.

Abstract: A butterfly valve comprises:(a) a valve body having a generally cylindrical cavity defining a longitudinal axis, the body having first and second ports communicating with the cavity,(b) a rotary valve member in the cavity, and having a generally cylindrical exterior surface and a side opening therethrough generally normal to that axis,(c) the valve member having a butterfly closure that extends crosswise of the side opening,(d) the valve member having an open position in which the side opening is in alignment with such ports with the butterfly closure in edgewise flow passing alignment with the ports to pass fluid flow through the side opening, and the valve member having a close position in which the side opening is also in alignment with such ports but with the butterfly closure in flow blocking relation to the ports to block fluid flow through the side opening.

Abstract: Electrical apparatus to monitor electrical three-phase power includes circuitry to protect three-phase equipment from excessive variations in line voltage, phase to phase unbalance, and reverse phase sequencing; to protect personnel against automatic restart of equipment at return of line power; and protect power sources against overload at return of line power, after power interruptions.

Abstract: A valve has a body containing three ports, and a rotor is rotatable in the body, the rotor rotatable about an axis to bring two passages in the rotor selectively into and out of registration with the body ports, the body ports opening at a cylindrical bore in the body, and the rotor passages opening at a cylindrical periphery of the rotor, the rotor passages spaced about said axis. The valve also includes:(a) axially spaced seal rings extending about the axis between the rotor and the body, the rings spaced at axially opposite sides of the passages and ports,(b) at least three seal strands extending between the rings and integral therewith, with first and second strands spaced apart about the axis at angularly opposite sides of one of the rotor passages, and the second strand and a third strand spaced apart about the axis at angularly opposite sides of the second of the rotor passages.

Abstract: A process for applying a volatile liquid maskant to an article to be subjected to chemical milling includes the steps:(a) providing a controlled temperature bath of said volatile maskant characterized as fast drying, and also providing a vapor blanket overlying the bath,(b) placing the article into position above the level of the bath and blanket, and adjusting the temperature of the article in relation to the bath temperature,(c) lowering the article through the blanket into the bath, and withdrawing the article upwardly from the bath and through the blanket at a controlled rate characterized in that the maskant coats the article to controlled coat thickness, and also in that the bath remains substantially free of return drainage of maskant off the withdrawn article,(d) and, following said upward withdrawal, flowing a gas stream into contact with the maskant coat while the article remains above the level of the bath to assist in rapid drying of the maskant.

Abstract: The method of locating in situ a damaged vane in a front stage of stator vanes of a jet engine, the engine also containing a stage of rotor blades and a rear stage of stator vanes, the rotor blade stage located between the front and rear stator vane stages, the engine including a housing about said stages, the method employing a radiation passing cable having a probe end, said method including:(a) inserting the probe end of the cable through the housing and between vanes in said rear stage,(b) extending said probe end of the cable beyond said rear stage and toward blades of said rotor blade stage,(c) attaching the probe end of the cable to one of the rotor blades,(d) rotating said rotor to carry said probe end of the cable relatively past successive vanes in said front stage while maintaining said probe end directed toward the locus of said vanes in said rear stage so that said front stage vanes are successively brought into the field of view of said probe end, and(e) remotely viewing said successive vanes of

Abstract: A fabric conditioner composition is applied to an air-permeable sheet and variably displaced so that the conditioner occludes interior interstitial spaces in certain regions of the sheet to block air flow therethrough, leaving other regions of the sheet with interstitially open spaces.

Abstract: An aqueous cleaning composition to be applied from a squirt bottle comprises a particulate abrasive, a two-part thickness consisting essentially of a mixture of fumed silicon dioxide and smectite clay, a hypo-halite bleach, alkaline builder salt, and water.

Abstract: Rotary sealing apparatus for sealing off between a relatively rotating shaft having an axis of rotation and mounting an impeller, and a relatively non-rotating wall through which the shaft extends, there being an annular seat on the wall, comprises:(a) a non-metallic seal ring extending about the shaft and engaging the seat to seal off between the seat and ring,(b) means located between the impeller and the seal ring to rotate the ring with the shaft, and(c) a non-metallic annular seal member located between the seal ring and the shaft to seal off therebetween.

Abstract: A valve has a body with multiple openings and a rotary valve member rotatable in a body cavity to control flow through the openings. A fixed closure member extends over one of the body openings, and a valve member control extends through the closure. A drain passage has a first portion in the fixed closure and a second portion in the rotary valve member. Those portions are brought into registration when the rotary member is in one position of flow control.

Abstract: A safety closure system for a tank comprises(a) complementary sections of a tank adapted to contain pressurized fluid, said sections having annular flanges which are subject to relative separation as the tank sections relatively separate due to said fluid pressurization,(b) said flanges respectively having oppositely facing annular surfaces which extend in relatively divergent relation away from the tank interior, and(c) clamp means assembled onto said flanges and having channel shape with webs extending in complementary relation in said divergent surfaces to engage the flanges and block said relative separation of the flanges at which time removal of the clamp means off the flanges is also blocked by said divergent surfaces.

Abstract: An underwater light circuit employs electrodes exposed to water, a light, and circuitry connected with the electrodes and light filament to control current flow to the filament.

Abstract: A fabric conditioner composition is distributed on an air permeable sheet in such manner that the conditioner occludes interior interstitial spaces in certain region of the sheet to block airflow therethrough, and other regions of the sheet have interstitially open spaces, there being additional interstitial spaces in those other regions which are relatively smaller and which contain remanent conditioner.

Abstract: Granular peroxygen bleaching and laundering compositions containing a percarbonate as a source of available oxygen are stabilized by the addition of from 0.1 to 2.0 percent of a particulate siliceous matter such as amorphous silica. To prevent caking and promote flowability of the compositions, from 0.05 to 1.0 percent corn starch, diethyl phthalate or mixtures thereof is included.

Abstract: Method of home laundering to impart soil release properties to dried laundered fabrics in which a soil release agent having the empirical formula (C.sub.39 H.sub.79 N.sub.2 O.sub.17).sub.3n is dispersed in agitated wash or rinse water at dilute concentrations in the range of about 0.0002 to 0.2 weight percent of the water and the fabrics are dried at normal drying temperatures.