Abstract: A resin composition comprising a copolymer (A) having carbon-carbon unsaturated bonds in its side chains, particularly that obtained by reacting a copolymer of alkyl (meth)arylate (0-50 mole %), hydroxy (meth)acrylate (10-50 mole %) and ethylenic unsaturated monomer (0 to 90 mole %) with an unsaturated carboxylic acid or an anhydride thereof, and a monomer (B) copolymerizable with (A) is suitable for producing a laminate for electrical use.

Abstract: A flame retardant electrical laminate prepared by impregnating a base material with a halogen-containing unsaturated polyester resin which is prepared by dissolving a halogen-containing unsaturated polyester into a polymerizable monomer; and then curing the halogen-containing unsaturated polyester resin; wherein the halogen-containing unsaturated polyester has a molecular weight per 1 mole of unsaturated group of 350 to 1,000, and the cured halogen-containing unsaturated polyester resin has a glass transition temperature of 30.degree. to 90.degree. C.Such electrical laminates not only have excellent flame redardancy but also excellent puching quality at wide temperature range including room temperature.

Abstract: Disclosed is a developing unit equipped with a shaft supporting mechanism for slidably supporting a photosensitive drum, thereby the photosensitive drum can be pressed onto the developing sleeve with an elastic force. The unit has a balancing mechanism for eliminating a thrust force caused by the driving mechanism.

Abstract: A resin composition obtained by adding maleic anhydride to an unsaturated polyester resin composition comprising (I) an unsaturated polyester, (II) a styrene monomer, and (III) at least one polymerizable unsaturated compound, in limited amounts is low in viscosity, excellent in transparency and adhesiveness, able to prevent the generation of surface defects, and thus suitable for treating cathode-ray tubes.

Abstract: A direct-coupling/differential changeover apparatus is provided with a speed change gear function and includes an input member, two output members, a reaction member, a planetary gear set, and a engage/disengage changeover apparatus for effecting engagement/disengagement between elements of the planetary gear set and the members and between two of the elements of the planetary gear set. The engage/disengage changeover apparatus establishes a direct-coupled power train between all input and output members by engaging any one of the elements of the planetary gear set with the reaction member and by engaging one of the two other elements of the planetary gear set with the input member and the remaining element of the gear set with two output members.

Abstract: A thermal recording device thermally records an image on a recording paper in the form of image segments gradated according to image information to collectively form the image. A thermal head has heating elements arranged in a row and activated to mark a row of dots on a recording paper. The thermal head is line-sequentially driven in the direction transverse to the row of dots to mark columns of dots to form a row-and-column arrangement of the dots such that the row-and-column arrangement is divided into a plurality of dot matrixes to define a plurality of corresponding image segments. A control circuit applies a control signal to the thermal head according to the image information to selectively activate the heating elements to thereby selectively mark dots in different densities during the line-sequential driving of the thermal head so that a specific pattern of selectively marked dots having different densities is formed within respective ones of the dot matrixes to gradate the image segments.

Abstract: An exhaust apparatus for fluorescent lamps has a transferring conveyor which intermittently conveys several carriers. Each of the carriers has several support heads to support bulbs which are connected through exhaust tubes to first connecting pipe members. Working heads are successively located at predetermined positions along the conveyor. Each of the working heads has second connecting pipe members which are detachably connected to the first connecting pipe members, respectively. Further, first and second valves are attached to the first and second connecting pipe members to open and close inner passages in the first and second connecting pipe members.

Abstract: In a video display apparatus which includes a video random access memory storing data of characters and graphics to be displayed on a cathode-ray tube display unit of raster scan type and in which display data corresponding to display positions on the cathode-ray tube display unit are read out from the video random access memory and are then subjected to parallel-serial conversion to provide a video signal applied to the cathode-ray tube display unit, the display data are read out from the video random access memory utilizing the page read function so that an inexpensive dynamic random access memory can be used as the video random access memory.

Abstract: An improved timing signal generating circuit for use in a raster-scanning CRT display apparatus. The circuit provides timing signals including memory control signals and clocks for the screen memory which stores data for characters and graphic patterns to be displayed on the CRT display unit, the CRT control circuit which supplies the synchronizing signal to the display unit and supplies the display address signal to the screen memory, and the processing circuit which reads and writes the screen memory. The timing signal generating circuit comprises a counter for dividing the frequency of the original oscillation signal, a first memory device which receives at its address terminal the output of the counter, and a second memory device which receives at its input terminal the output of the first memory device and stores it in response to the original oscillation signal whereby to provide outputs as the timing signals.

Abstract: In a display system including a screen memory having a one-to-one correspondence to the characters to be displayed on a cathode ray tube or CRT, a character generator for generating a bit stream indicative of a character selected by an output of the screen memory and a CRT control circuit for generating the display addresses corresponding to the display positions on the CRT and the raster addresses for selecting the relation between the character block of the character generator and the scanning lines of the characters to be displayed on the CRT, the characters to be displayed on the CRT are vertically shifted in accordance with the value of the display addresses and a separating line is displayed in the space provided by the shifting of the characters thereby making the vertically shifted lines easy to see.

Abstract: A display device for displaying characters and graphic patterns by using a raster scan type cathode ray tube is disclosed. Clock frequencies applied to a parallel-to-serial converter for converting parallel character data to serial data and a parallel-to-serial converter for converting parallel graphic data to serial data are different from each other so that the number of dots displayed on the cathode ray tube in one-character display period for the character data is different from that for the graphic data.

Abstract: A display apparatus is disclosed comprising a picture memory having memorizing portions which correspond in one-to-one relation to characters or graphics to be displayed on the screen of a cathode ray tube display monitor, a CPU of a controller for reading or writing the picture memory, and a CRT controller for generating timing signals which are used for displaying on the screen of the cathode ray tube display monitor. Data are read from the picture memory by the timing signals which the CRT controller generates and displayed on the cathode ray tube display monitor, wherein the frequency of operation clock signals of the CPU in the period in which the picture memory is read or written and that in the period in which the picture memory is neither read nor written are made different, so that the CPU can operate at high speed.

Abstract: A display processor for a raster-display type system comprising a display memory with the capacity of storing at least one page of video information to be displayed over the screen of a cathode-ray tube and a cathode-ray tube (CRT) control circuit which divides the frequency of the externally applied clock pulse to generate the address signal and the vertical and horizontal sync signals, the address signal being applied to the display memory while the vertical and horizontal sync signals are applied to the CRT display device. The present invention further adds a comparator which compares the external vertical synchronizing signal with the internal vertical sync signal and a sync circuit which responds to the output from the comparator to permit or inhibit the passage of the external clock pulse to the CRT control circuit.

Abstract: A powdered raw material feeding device is mounted beside a glass melting tank for feeding the powdered raw materials of glass onto a surface of molten glass in the tank. The raw materials thus riding on the molten glass are forced to move in the downstream direction in response to the feeding of the raw materials to the tank. An obstruction device is stationarily mounted in the way of a heap of the raw materials on the molten glass so that an extreme end of the obstruction device is embedded in the heap of the raw materials on the molten glass at a position near the laterally central position of the path of the heap, whereby upon movement of the heap in the downstream direction, a certain magnitude of flow resistance is applied to the heap of the raw materials.

Abstract: A preset lighting device in which the number of common input and output terminals is reduced and which does not respond to a duplicate switch activation state so that a previously-determined lighting state as maintained until a valid activation state is present. A lighting element is provided for each of plural input switches which are in turn coupled to corresponding input/output terminals. A latch circuit is provided for each lighting element to maintain the lighted state until reset occurs. First and second gate circuits detect a duplicate switching state and control the activation of the lighting elements accordingly.

Abstract: An unsaturated polyester resin composition for coating metal substrates, comprising an unsaturated alkyd component and a polymerizable vinyl monomer, said unsaturated alkyd component selected from the group consisting of:(a) compounds resulting from addition of mono-epoxy compounds possessing a .beta.,.gamma.-unsaturated ether to the carboxyl group of dicyclopentadiene-modified unsaturated alkyds, and(b) mixtures of dicyclopentadiene-modified unsaturated alkyds with unsaturated alkyds obtained by the ring-opening copolymerization of .alpha.,.beta.-unsaturated dicarboxylic anhydrides and mono-epoxy compounds possessing a .beta., .gamma.-unsaturated ether group.

Abstract: Cylinder head construction defining a hemispheric combustion chamber which includes a guide wall provided to impart swirl to the incoming air-fuel mixture. The guide wall facing the intake port defined by the cylinder head construction and generally parallel to the line of action of an intake valve provided in the intake port has a height greater than the maximum lift of the intake valve, and decreases in width in the direction of opening of the intake valve. In addition, the size of the area and the position of the guide wall relative to the intake port and the intake valve are maintained in specific ranges, and thus the construction not only permits efficient ignition of a lean air-fuel mixture, but at the same time causes only a slight drop in engine performance.

Abstract: An exhuast gas purifying apparatus for use in an automobile multi-cylinder engine of the type which has exhaust ports communicating with engine cylinders and through which exhaust gases are emitted subsequent to combustion of an air-fuel mixture. The exhaust gas purifying apparatus comprising a reducing catalyst unit and a three-way catalyst unit which are disposed in a main exhaust manifold which is connected at one end to a first group of the exhaust ports and at the other end to the atmosphere, and an auxiliary exhaust manifold connected at one end to a second group of the exhaust ports and at the other end to a portion of the main exhaust manifold at a location downstream of the reducing catalyst unit and upstream from the three-way catalyst unit. A pressure operated valve is disposed in a secondary air supply passage for introducing a secondary air into the auxiliary exhaust manifold by the utilization of the pulsating flow of the exhaust gases through the auxiliary exhaust manifold.

Abstract: An exhaust gas purifying apparatus, for use in an automobile multi-cylinder engine of the type which has exhaust port ducts leading from engine cylinders and through which exhaust gases are emitted subsequent to combustion of an air-fuel mixture, the exhaust gas purifying apparatus having a reducing catalyst unit and an oxidizing catalyst unit disposed in a main exhaust manifold which is corrected on one side, to a first group of the exhaust port ducts and, on the other side to the atmosphere, an auxiliary exhaust manifold is connected, on one side to a second group of the exhaust port ducts and on the other side to a portion of the main exhaust manifold which is downstream from the reducing catalyst unit and upstream of the oxidizing catalyst unit.

Abstract: For use in an automobile multi-cylinder engine having exhaust port ducts leading from engine cylinders and through which exhaust gases are emitted subsequent to combustion of air-fuel mixture, an exhaust gas purifying apparatus which has a reducing catalyst unit and an oxidizing catalyst unit disposed in a main exhaust manifold connected on one hand to a first group of the exhaust port ducts and on the other hand to the atmosphere, and an auxiliary exhaust manifold connected on one hand to a second group of the exhaust port ducts and on the other hand to a portion of the main exhaust manifold at a position downstream of the reducing catalyst unit and upstream of the oxidizing catalyst unit. The apparatus further has a pressure operated valve disposed in a secondary air supply passage for introducing secondary air into the auxiliary exhaust manifold by the utilization of a pulsating flow of the exhaust gases through the auxiliary exhaust manifold.