Abstract: The present invention concerns a dielectric film for converting electromagnetic or electrostatic energy into mechanical work, and a procedure for manufacturing the film. The film of the invention consists of a homogeneous film layer foamed to be of full-cell type and which has been oriented by stretching it in two directions and coated at least in part on one side or on both sides with an electrically conductive layer. The film is manufactured by extruding the plastic which has been made to be foamable, into tubular shape, performing intermediate cooling of the tube and reheating it, expanding the heated tube in two directions, metallizing the outer surfaces and cutting the tube open to become a film.

Abstract: Derivatives of propranolol which have the following structure: ##STR1## where R is X--(CH.sub.2).sub.n --O, X is NH.sub.2 or COOH, n is 1,2,3,4, or 5, provided that when n is 1, X must be COOH, and R is attached in the 4', 5', 6', 7' or 8' position. The compounds are useful in immunoassay applications to (1) conjugate to a protein carrier in order to prepare antibodies to propranolol and (2) to conjugate to a tracer moiety such as a radiolabeled ligand, an enzyme, an enzyme substrate or a fluorescent dye.

Abstract: A sliding roof for a vehicle with a roof opening, comprising a transparent outer panel and an inner panel with a grip. The outer panel may be moved downwardly from its closed position in the roof opening and may be slid backwardly between the fixed roof and the inner roof lining of the vehicle to a wholly or partly opened position and back. Upon opening of the outer panel a carrier means on the outer panel slides the inner panel backwardly and in the wholly opened position of the outer panel the inner panel substantially entirely lies between the inner roof lining and the fixed roof and a hand grip of the inner panel is inaccessible. Upon the forward movement of the outer panel from its substantially rearward wholly opened position, a locking mechanism locks the inner panel in a position in which the handgrip remains inaccessible.

Abstract: A system to prevent, retard or reverse the decomposition of silicon carbide articles during high temperature plasma sintering. Preferably, the system comprises sintering a silicon carbide refractory or ceramic green body in a closed sintering environment, such as a covered crucible, with strategic placement of the plasma torch or torches, exhaust outlet and crucibles. As sintering proceeds, a silicon vapor pressure builds up within the crucible, retarding the decomposition of the silicon carbide body. The plasma torch, exhaust outlet, and crucibles are positioned so that buoyant convective flow is maximized to increase the heat transfer and energy efficiency. In another embodiment, a "sacrificial" source of silicon carbide is placed into the sintering furnace. The silicon carbide in the sacrificial source starts to decompose before the silicon carbide refractory or ceramic article, creating a supersaturated atmosphere of silicon vapor species in the furnace.

Abstract: A convertible animal cage particularly suited for use in laboratories utilizing more than one kind of small rodent to minimize storage area and cage inventories. In one embodiment, a standard hanging cage with a relatively large grid bottom and front is converted into a cage for smaller animals by the insertion of an L-shaped piece consisting of a smaller grid. In another embodiment, the front and bottom panels of an otherwise solid cage are replaced with panels of a different size grid.

Abstract: Blind guide device is disclosed. The device comprises a light-emitting element, a first electric circuit for generating an electric pulse and causing pulsating-conduction of the light-emitting element, a first lens for converging the light emitted from the light-emitting element onto a body to be detected, a mark attached to the body to be detected for performing retroreflection action, a second lens and a photo-detector element for receiving the light reflected by the body to be detected and the mark, a second electric circuit for amplifying the output electric signal of the photo-detector element and holding an electric signal synchronized with the electric pulse, a third electric circuit for generating an electric signal whose frequency or amplitude varies in response to the output electric signal of the second electric circuit, and an electro-acoustic transducer or vibrator for converting the output electric signal of the third electric circuit into a sound or into a stimulation.

Abstract: In the resist development method disclosed herein, the spin development of a resist coating on the surface of a semiconductor wafer is monitored by measuring light scattered back from the wafer surface from an incandescent source. During development, the sensed light level oscillates due to optical fringing caused by the thinning of the resist layer in the exposed areas and the fringe generated oscillation essentially stops when the development breaks through in the exposed areas. By comparing sample data obtained from the sensed light level with template data representing a known or characteristic behavior, a control point corresonding to the last fringe may be determined. Development is then terminated a calculated time after the control point.

Abstract: A one-way clutch biasing means for an automatic transmission, comprising: an inner spline formed on a one-way clutch retaining member; an outer spline formed on the outer race of the one-way clutch and loosely meshed with the inner spline; and a resilient member fitted between a side wall surface of the inner spline of the retaining member and an opposing side wall surface of the outer spline of the outer race to urge the outer race constantly in the locking direction of the one-way clutch.

Abstract: An internal-gear pump with a partition plate, comprising: an arcuate chamfer formed at an inner edge of an end face of the partition plate rotationally opposing an inner gear of the pump and having a curvature at least greater than that of tooth tip edges of the inner gear.

Abstract: An apparatus for removing torque ripples comprises a permanent magnet rotor, position sensors, stator armature coils, an operational circuit for effecting an arithmetic operation on detected signals from the position sensors, and a control circuit for driving the stator armature coils. According to another embodiment, an apparatus for removing torque ripples includes a direct-current motor having Y-connected armature coils, a detector for detecting counterelectromotive forces in the direct-current motor, an operational circuit for effecting an arithmetic operation on output signals from the detector, and a transistor for driving the direct-current motor.

Abstract: The calibration scheme disclosed herein is applicable to microlithographic systems of the type in which alignment between successive exposures is provided by means of a microscope mounted to one side of the optical projection column, there being a laser metered stage for transporting a semiconductor wafer between the microscope and an optical projection column. In accordance with the practice of the invention, a wafer with a light sensitive coating is placed on the stage and transported to the column using an approximate base line value. After exposure from a reticle which includes fiducial markings, the wafer is transported by the stage to the microscope. By observing the latent image on the coating, the precise stage movement required to align the latent image of the fiducial markings on the wafer with the microscope system reference reticle may be measured with the laser metered stage. The base line value is then corrected based on the actual measurement.

Abstract: A silicon aluminum oxynitride containing refractory for use in continuous casting is placed between a mold and a tundish and is formed by sintering an admixture of silicon nitride (Si.sub.3 N.sub.4), aluminum nitride (AlN), boron nitride(BN), and a mineral clay. The refractory further includes aluminum oxide(Al.sub.2 O.sub.3).

Abstract: An exhaust duct is arranged vertically slidably on a vertical board saw so that it always follows the vertical movement of the sawing unit during horizontal cutting. The exhaust duct is formed by a U-shaped profile, in which an endless driven band is guided. A slot provided in the band is located in front of the saw blade (S) in every position of the sawing unit; the sawdust thrown off by the saw blade thus passes through the slot into the space enclosed by the band and is exhausted. A sealing element is fitted on the front band side just in front of the slot. The apparatus ensures a virtually 100% discharge of the chips and sawdust in the case of horizontal cutting, which is of great significance particularly in sale rooms and exhibition rooms, and contributes to humane conditions in the workshop.

Abstract: In an apparatus for measuring the volume of a measuring gas, comprising a measuring bell that is movable upwardly and downwardly under influence of the measuring gas and that is suspended from one end of a flexible cable or the like cooperating with a balance device for the measuring bell, the measuring bell together with a stationary body creating a measuring space into which a measuring conduit for the measuring gas communicates, the balance device is constructed in such a manner that it remains operational in a range of measuring bell accelerations that exceed the gravitational acceleration. The balance device exists of a balance weight or a spring element.

Abstract: A drug releasing system in the form of a medical patch comprised of a drug dispensing polyurethane member as a matrix for a therapeutically effective amount of drug dispersed therein. The polyurethane of the drug dispensing or releasing member is a polyurethane acrylic copolymer which is the reaction product of an oligomer of a diisocyanate, a glycol with a molecular weight between the range of 500-5,000 molecular weight units and an acrylyl chain terminator having a molecular weight between the range of 40-200 molecular weight units cured by actinic radiation. In its preferred embodiment, the foregoing drug releasing or dispensing member is incorporated into a medical patch or drug release system comprised of successive layers of an ultrathin polyurethane substrate, pressure sensitive adhesive, the above-described drug releasing member and optionally a second layer of adhesive.

Abstract: An apparatus for producing and spraying a mixture consisting of at least two components, e.g. liquids, and a propellant gas, comprising two nested containers for housing the components and the propellant gas and a discharge valve which is disposed at the outer container and has a small discharge tube operable from outside to establish fluid communication with the interior of the outer container. The inner container has a closure including a desired rupture site at its end remote from the discharge valve or facing the bottom of the outer container. The rupture site is adapted to be broken from outside by means of a crusher acting through the bottom of the outer container and establishing fluid communication between the inner and outer containers.

Abstract: Disclosed is a papermaker's forming fabric which is produced from yarns including at least two parallel monofilament strands. Such yarns may be utilized exclusively in the cross-machine direction, or they may be utilized in both the machine and cross-machine directions. Such a fabric construction results in reduced knuckles thereby providing a fabric displaying improved sheet-release and reduced wire mark.

Abstract: A zeolite material obtained by modifying a crystalline aluminosilicate having the following empirical formula:xM.sub.2 O.yM'O.Al.sub.2 O.sub.3.zSiO.sub.2.nH.sub.2 Owherein M is an exchangeable cation selected from the group consisting of alkali metals, hydrogen and mixtures thereof, M' is an alkaline earth metal, x is between 0 and 1.5, y is between 0.2 and 40, z is between 50 and 3000 and n is between 0 and 40 and wherein x+y is at least 1.2, with an alkaline earth metal compound. The modifying may be by impregnation or by mere mixing. The zeolite material is useful as catalyst for converting methanol and/or dimethyl ether into lower olefins.

Abstract: Disclosed is a process and device for facilitating the differentiation of particles in a medium. The particles are exposed to a rotating electrical field of variable rotational frequency. By providing a means for adjusting the frequency of the rotating fields, the particles can be caused to rotate in different directions thereby facilitating differentiation of particles belonging to different groups of particles. An apparatus for implementing this process includes at least three electrodes which are arranged so as to form a space therebetween. A device for producing a rotating field of variable rotational frequency is connected to the electrodes.