Abstract: An automotive accessory drive assembly includes a two-member differential which is arranged to provide three-member differential action. The accessories are driven through the differential at low engine speeds, and are driven through a speed-reducing drive train at high engine speeds.

Abstract: A vacuum deaerator for use in a hydraulic system, the vacuum deaerator serving to evolve air out of solution in a hydraulic fluid. The deaerator includes a flow passageway with a flow restricting device at its inlet to induce an initial pressure drop and two discharge ports at its outlet, one for air and the other for hydraulic fluid. A vacuum pump is used to draw fluid through the passageway.

Abstract: Motion transmitting apparatus includes a case member, a pair of coaxial shaft members, and a pair of shuttle members. The members rotate about the shaft axis in unison as a differential mechanism, with differential action between the shaft members provided by oscillation and reciprocation of the shuttle members in opposite directions relative to another axis perpendicular to the shaft axis. Grounding the case member causes this opposite oscillation and reciprocation of the shuttle members to provide a reversal of the direction of rotation of the shaft members.

Abstract: A balanced fluid pressure device of the type including a housing in which a gerotor gear set and a shaft are supported. The gear set includes an externally toothed star gear and an internally toothed ring gear. An eccentric drive mechanism connects the ring gear with the housing so as to establish orbital movement of the ring gear. The star gear orbits within and rotates relative to the ring gear, and is connected with the shaft by another eccentric drive mechanism so as to establish rotational movement of the shaft. The mass and orbit of each gear are such that centrifugal forces developed upon orbiting thereof are substantially equal and opposite, with the result that inertial loading is substantially balanced.

Abstract: A fluid pressure device of the type including a housing in which a gerotor gear set is supported. The gear set includes an externally toothed star gear rotating within an internally toothed ring gear. The housing and ring gear each define complementary but eccentrically oriented races between which balls are contained so as to establish orbital movement of the ring gear. The housing and ring gear define passages communicating through the eccentric drive to supply and exhaust fluid to and from chambers defined between the star and ring gears.

Abstract: Organic holographic recording media comprise organic photosensitive compounds such as .alpha.-diketones, quinones and nitro compounds in sucrose benzoate as host.

Abstract: Recording media comprising a mixture of 4,4'-bis(3-diazo-3,4-dihydro-4-oxo-1-naphthalenesulfonyloxy)benzil and an alkali soluble resin are suitable for recording information with electron beams. These recording media have high sensitivity, high resolving power and can be reproducibly formulated.

Abstract: Copolymers of certain keto-olefins and SO.sub.2 are sensitive to light and form films useful as photoresists in the manufacture of printed circuits, integrated circuits, printing plates and the like.

Abstract: Electrically resistive organic materials, e.g. silicone rubber, thermoplastic resins, and liquid crystals, are made more electrically conductive by the addition of an effective amount of a compound of the formula: ##STR1## wherein R.sub.1 is selected from the group consisting of hydrogen, alkyl, and phenyl-substituted alkyl; R.sub.2 is alkyl with 8 - 20 carbon atoms; and Z is selected from the group consisting of phenyl and alkyl-substituted phenyl. The invention is particularly applicable to silicone rubber light valves and liquid crystals.

Abstract: Liquid crystal compounds of the formula ##STR1## wherein X can be alkyl (R-), alkoxy (RO-), acyloxy ##STR2## or alkylcarbonato ##STR3## wherein R is an alkyl group from 1-10 carbon atoms, and R.sub.1 -R.sub.3 can be hydrogen, methyl or halogen with the proviso that at least one and no more than two of R.sub.1 -R.sub.3 are substituents other than hydrogen, have positive dielectric anisotropy and are useful in electro-optic devices which comprise a thin liquid crystal layer between two closely spaced parallel electrodes.

Abstract: Liquid crystal compounds of the formula ##STR1## wherein X can be an alkoxy (RO-), an acyloxy ##STR2## or an alkylcarbonato ##STR3## group wherein R is an alkyl group having up to 10 carbon atoms and Y is a nitro or cyano group, having positive dielectric anisotropy and are useful in electro-optic devices which comprise a thin liquid crystal layer between two closely spaced parallel electrodes.

Abstract: A method of purifying crude 2,4-bis(6-diazo-5,6-dihydro-5-oxo-1-naphthalenesulfonyloxy)benzophenone by dissolving in an organic solvent, reprecipitating by adding certain nonsolvents and recrystallizing the reprecipitated product from certain solvents.

Abstract: Recording media comprising a mixture of 4,4'-bis(3-diazo-3,4-dihydro-4-oxo-1-naphthalenesulfonyloxy)benzil and an alkali soluble resin are suitable for recording information with electron beams. These recording media have high sensitivity, high resolving power and can be reproducibly formulated.

Abstract: Copolymers of certain keto-olefins and SO.sub.2 are sensitive to light and form films useful as photoresists in the manufacture of printed circuits, integrated circuits, printing plates and the like.

Abstract: Certain light sensitive .alpha.-diketones dissolved in a cured light-insensitive transparent polymer host form recording media useful for recording volume phase holograms.

Abstract: Recording media comprising a mixture of 2,4-bis(6-diazo-5,6-dihydro-5-oxo-1-napthalenesulfonyloxy)-benzophenone and an alkaki soluble resin are suitable for recording information with electron beams. These recording media have high sensitivity, high resolving power and can be reproducibly formulated.

Abstract: A cavitation suppressor for use in a hydraulic system, the cavitation suppressor serving to prevent excessive pressure in the system by bypassing hydraulic fluid around a mixing section to reduce the need for aspiration of additional fluid from a reservoir. The cavitation suppressor also prevents dissolved air in the system from coming out of solution. It includes inlet, mixing and outlet sections, and fluid bypass means communicating the inlet section with the outlet section.