Abstract: A sheet aligning arrangement adapted to accommodate a plurality of sheets fed into it for aligning, and to feed out the aligned sheets one sheet by one sheet. The arrangement includes a feed roller, a first aligning member movable between a first position defining a sheet aligning reference position and a second position parallel to the first position and defining a sheet transport reference position, a second aligning member located in a position confronting the first aligning member, and pivotable in a direction intersecting at right angles with a sheet transport direction, and a displacing device for displacing the first aligning member to the first position during the alignment to effect aligning together with the second aligning member, and also for displacing the first aligning member to the second position during the re-feeding of the sheets by the feed roller, while pivoting the second aligning member to align the sheets.

Abstract: A data transmission system has plural transmission units or nodes with respective addresses, for transmitting data by token passing method. Each node is capable, upon receiving the transmitted data, of confirming the presence or absence of another node of a same address, in order to avoid transmission errors, resulting from overlapping addresses.

Abstract: There is disclosed a data transmission network system for data transmission among plural stations by token passing method. A station which has acquired the right of communication for the first time transmits relevant information to all other stations in the network so that smooth token passing can be achieved without the use of a monitor station in the network.

Abstract: Disclosed is a focus detection apparatus including a light source; focusing means for focusing a light beam emitted from the light source onto an object; a prism for reflecting the light beam from the light source by its surface and for allowing return light from the object to pass therethrough to cause an astigmatism; and detection means for detecting a focusing state of the light beam on the object from the astigmatism of the return light. In this apparatus, the detection means is arranged at a position opposite to the light source to sandwich the prism therebetween, and the return light emerges from a surface thereof different from the incident surface to be guided to the detection means.

Abstract: A copying apparatus capable of effecting duplex copying and composite copying and including an intermediate tray member for storing a plurality of copy paper sheets each having one copied face and refeeding the stored copy paper sheets one sheet by one sheet and a mounting member for detachably mounting the intermediate tray member on an apparatus housing of the copying apparatus in a direction perpendicular to a transport direction of the copy paper sheets. The intermediate tray member includes a storage portion for storing the copy paper sheets, first and second transport portions for transporting the copy paper sheets to the storage portion at the time of duplex copying and composite copying, respectively and a paper feeding device for feeding the copy paper sheets stored in the storage portion.

Abstract: An optical head device comprising a light source unit, a deflecting element for changing the direction of travel of a light beam emitted from the light source unit, and a condensing element for condensing the light beam on a recording medium. A movable portion is formed so that the deflecting element and the condensing element move substantially together with each other relative to the recording medium, and the deflecting element is designed such that the variation in direction of the emergent light beam from the movable portion caused by the rotative displacement of the movable portion with respect to at least one axis can be decreased.

Abstract: An optical head device comprises a light source, condensing optics for condensing a light beam emitted from the light source on an optical recording medium, a photodetector for detecting the light of the light beam reflected from the recording medium, and a beam splitter having a diffraction grating arranged in the optical path of the light beam entering the recording medium from the light source along a plane substantially perpendicular to the optical axis of the incident light beam to cause the light reflected light from the recording medium to be diffracted by the diffraction grating and directed to the photodetector.

Abstract: In a method of making a hologram by causing a plurality of light beams to interfere with one another, a new hologram is made by the use of the reproduced lights from a plurality of holograms made on the same substrate.

Abstract: A large number of needle patterns are integrally associated with each other on an extended U-shaped metal plate. After that, a pointed end of individual needle patterns is formed, and a series of individual needle patterns are divided into a plurality of segmented needle bodies. Then, a suture is inserted into a hollow portion of the needle body. By closing both walls of the needle body, a suture needle can be produced one after another.

Abstract: A hydrogenation catalyst composition useful for the hydrogenation of an oxalate diester, said composition being composed of a reduction product of a copper-containing silica gel formed by contacting an amine complex of copper with silica gel having an average particle diameter of not more than 200.mu. and a process for producing the aforesaid composition. Using a catalyst composed of the aforesaid composition, ethylene glycol and/or a glycolic acid ester can be produced from an oxalate diester efficiently with high conversions and selectivities and without causing pollution attributed to the use of a chromium-containing catalyst composition.

Abstract: A data transmission system for a LAN has a number of nodes connected in a ring or bus network. Each node has a transmit-receive circuit, a RAM, a CPU, a self node address switch, and an interface control. The frequency of adjacent node retrieval processing operation is set to be high in an initial period after the node is powered, and is set to be low thereafter. A new node added to the network can obtain a communication right within a relatively short period of time. Each node or the system can also have a maximum node address switch to allow the CPU to discriminate the current maximum address within the network. A node to be assigned with the communication right next can be discriminated fast. First and second downstream node addresses can also be stored in the RAM to allow the node to assign the communication right to the second downstream node in case the first downstream node has failed due to power failure or the like.

Abstract: A hydrogenation catalyst composition composed of a reduction product of a copper-containing material formed by contacting an aqueous solution of an amine/copper complex with a carrier, characterized in that the carrier is a hydrolyzed product obtained by hydrolyzing a silicate ester in the presence of ammonia; a process for producing the aforesaid hydrogenation catalyst composition; and a process for producing ethylene glycol or a glycolate ester in the presence of the aforesaid hydrogenation catalyst.

Abstract: A hydrogenation catalyst composition useful for the hydrogenation of an oxalate diester, said composition being composed of a reduction product of copper-containing silica gel formed by contacting an ammine complex of copper with colloidal silica sol; and a process for producing the aforesaid composition. Using a catalyst composed of the aforesaid composition, ethylene glycol and/or a glycolic acid ester can be produced from an oxalate diester efficiently with high conversions and selectivities and without causing pollution attributed to the use of a chromium-containing catalyst composition.

Abstract: A method of making a clutch rotor for use in an electromagnetic clutch according to this invention includes the steps of forming a cup-shaped blank with a generally cylindrical annular flange wall; applying an outward transaxial force to the annular flange wall of the cup-shaped blank to form an annular outward bulge in the flange wall forming at least one inwardly projecting approximately V-shaped groove in the annular bulge by a press operation; applying a roller working operation to the approximately V-shaped groove to form the final V-shaped groove; and welding an inner cylindrical member to the bottom plate at its radial inner end surface.

Abstract: An electromagnetic clutch with an improved rotor, and a method of manufacturing the rotor includes the steps of: (a) forming a cup-shaped blank with a generally cylindrical flange wall and a bottom plate by bending a piece of sheet metal; (b) forming at least one approximately V-shaped groove in the blank flange wall by a pressing operation; (c) forming a final V-shaped groove by applying a roller working operation to the approximately V-shaped groove; and (d) welding an inner cylindrical member to a radial inner surface of the bottom plate of the cup-shaped blank.

Abstract: In a process for producing ethylene glycol and/or a glycollic acid ester by the vapor phase catalytic hydrogenation of an oxalic acid diester in the presence of a catalyst and hydrogen gas, the improvement wherein the catalyst has the following composition formulaCuMo.sub.k Ba.sub.p O.sub.qwherein k, p and q represent gram-atoms of Mo, Ba and O, respectively, per gram-atom of Cu, k is a number of from 0 to 3, p is a number of from 0 to 6, and q is a number determined depending upon the atomic valence and gram-atoms of Cu, Mo and Ba, provided that k and p are not zero at the same time; and the aforesaid catalyst.

Abstract: A hydrogenation catalyst composition for use in the hydrogenation of a lower alkyl ester of a lower hydroxycarboxylic acid. The composition is composed of a reduction product of copper-containing silica gel formed by contacting an ammine complex of copper with silica gel having an average particle diameter of not more than 200 microns or colloidal silica sol. A process for producing the catalyst composition is also provided. By using the aforesaid catalyst composition, a lower alkylene glycol can be produced efficiently in high conversions and selectivities without causing pollution attributed to the use of a chromium-containing catalyst composition.

Abstract: A hydrogenation catalyst composition useful for the hydrogenation of an oxalate diester, said composition being composed of a reduction product of copper-containing silica gel formed by contacting an amine complex of copper with colloidal silica sol; and a process for producing the aforesaid composition. Using a catalyst composed of the aforesaid composition, ethylene glycol and/or a glycolic acid ester can be produced from an oxalate diester efficiently with high conversions and selectivities and without causing pollution attributed to the use of a chromium-containing catalyst composition.

Abstract: In a process for producing a glycollic acid ester by the vapor phase catalytic hydrogenation of an oxalic acid diester in the presence of a catalyst and hydrogen gas, the improvement wherein the oxalic acid diester in the vaporous state is contacted with hydrogen gas in the presence of a catalyst composed of Ag or Pd supported on a solid carrier at a temperature of from about 120.degree. C. to about 300.degree. C.

Abstract: A target structure for use with an image pick-up tube is disclosed which has a transparent conductive layer coated on a transparent substrate, a photo-conductive layer on the conductive layer whose main substance is selenium Se, and a semi-insulating oxide layer interposed between the transparent conductive layer and the photo-conductive layer. The semi-insulating oxide layer includes at least one of zinc Zn and cadmium Cd, and at least one of tin Sn and germanium Ge.