Abstract: The present invention discloses a multilayer liquid crystal display device which has superposed liquid crystal panel units having plastic film substrates. Spacers of a size not larger than 50 .mu.m are dispersed on and fixed to one viewing area of the facing panel units to prevent contact between adjacent units and even when the viewing area of the device is large and/or even when the device is left alone under bad conditions, no Newton ring, no optical interference fringe or no uneven transmission are recognized on the display screen of the device.

Abstract: A front structure for a vehicle body including a front frame which extends in the longitudinal direction of the side of the engine room of the vehicle. The front frame is formed of an outer frame and an inner frame connected together to form a closed cross section. A dashboard lower panel is disposed near the rear edge of the front side frame and extends vertically. A front floor extends rearward from the lower edge of the dashboard lower panel. A side sill extends in the longitudinal direction along the side of the front floor and is formed of an outer frame and an inner frame connected together to form a closed cross section. The side sill has a projection on its inward side at front end thereof which is connected to the rear portion of the front side frame.

Abstract: A liquid crystal display device including a pair of transparent baseplates which are opposed to each other. A pair of transparent electrodes are disposed on an inner surface of each of the baseplates. A sealing member is disposed so as to form a chamber between the baseplates for containing therein the transparent electrodes and a liquid crystal. Contact electrodes are disposed on one end portion of the inner surface of each of the baseplates for contacting with a pair of external electrodes to be inserted into the device, from the external electrodes a signal to control optical transmission/screening of the liquid crystal being received. A pair of connecting electrodes are disposed on the inner surface of each of the baseplates for electrically connecting the contact electrodes with the transparent electrodes in order to transmit the signal from the contact electrodes to the transparent electrodes. The device is constructed so that the connecting electrodes are not electrically conducted with each other.

Abstract: A pyroelectric infrared detector or infrared ray receiving element comprising a plurality of pyroelectric operating areas, utilizing one of the operating areas as an infrared radiation detection area having a light-transmissive surface electrode. The electrical signal produced in the signal detection area is compensated by an electrical signal produced in another pyroelectric operating area having a light-reflective surface electrode. Temperature drift and noise due to vibration are drastically reduced through the compensation.

Abstract: The system for measuring the spillover signal from a transmitter to a receiver in a same frequency repeater or a booster has a frequency conversion device which slightly offsets the transmission frequency from the reception frequency, and a signal detector which measures the offset frequency component in the reception signal. The offset frequency is around 100 Hz, which is higher than the fading frequency, and low enough not to affect the operation of receivers. The measured spillover level is used to control the gain of the repeater, and/or to cancel the spillover signal, so that the repeater has the maximum gain without suffering from oscillation.

Abstract: An electrode terminal structure for a polymer piezoelectric element is provided. The polymer piezoelectric element comprises a polymer piezoelectric film and a pair of electrode films formed on both sides of the piezoelectric film. A conductor plate and an insulating plate are successively disposed at a part near the periphery on one surface of the polymer piezoelectric film element. The thus stacked part is sandwiched between a double-layered conductor plate and the entire stacked structure is pressure bonded to form the above-mentioned electrode terminal structure.

Abstract: An electroconductive film having moderate transparency and electroconductivity and excellent mechanical properties inclusive of a good tear strength is provided through a process wherein an electroconductive fiber is dispersed over a thermoplastic resin film, and the thus formed loosely laminated sheet is hot-pressed between a pair of rollers having temperatures above and below the softening point of the thermoplastic resin film, at least one of the rollers being surfaced with an elastic material. The electroconductive film is suitably used as a packaging material for shielding electromagnetic wave.

Abstract: In finish annealing process for a grain-oriented electrical steel strip or sheet, an improvement is disclosed which comprises coating the grain-oriented electrical steel strip or sheet with an annealing separator having a water content adjusted to not more than 10%, drying the coated strip or sheet, forming it into a strip coil, and finish annealing the strip coil within the inner cover of an annealing furnace while controlling the pressure of the gas atmosphere within the inner cover.

Abstract: A decoking apparatus suitable for use on a reaction vessel for the thermal cracking of heavy petroleum oils the apparatus essentially including a rotatable main injection pipe to be disposed in the reaction vessel and having a multitude of jet nozzles along its length, and a second or auxiliary injection pipe positioned in the proximity of the main injection pipe to inject a scrubbing liquid over the outer peripheral walls of the main injection pipe to prevent deposition of coke. The main and auxiliary injection pipes are both supplied with heavy petroleum oil to remove the coke deposition from the reactor wall by the heavy petroleum oil jets from the main injection pipe while wetting the exterior of the main pipe with the heavy petroleum oil injected by the auxiliary injection pipe.

Abstract: A decoking device suitable for use on a reaction vessel for the thermal cracking of heavy petroleum oils, including an assembly mounted on top of the reaction vessel and having a cylinder and a piston slidably and rotatably received in the cylinder, the cylinder and piston defining a scrubbing liquid chamber which is sealed from the outside. A scrubbing liquid is fed through the scrubbing liquid chamber to a main injection pipe to inject the liquid through a multitude of jet nozzles in the main injection pipe against the inner wall surfaces of the reaction vessel, the main injection pipe being connected to the piston for movement therewith.

Abstract: A process for the production of a polyethylene terephthalate film characterized by carrying out heat setting after biaxial elongation so that the heat set temperature and heat set time may satisfy the following relations:______________________________________ heat set temperature 140-213.degree.C. log t .gtoreq. -0.14T + 10.99 heat set temperature 213-223.degree.C. log t .gtoreq. -0.14T + 30.8 heat set temperature 223-255.degree.C. log t .gtoreq. -0.0186T + 3.73 ______________________________________in which T is a heat set temperature (.degree.C.) and t is a heat set time (min.), and thus obtaining a cleavage-free film.