摘要:
In image forming method comprising an exposure step of forming an electrostatic latent image and a developing step of developing the electrostatic latent image, a developer comprises a magnetic carrier and a toner; a developing curve of the developer at the time when the developer is used has a saturated characteristic, the developing curve being as expression of the relation between the amount of toner transferred to the latent image support member and contrast potential, the contrast potential being determined by the developing bias potential applied to the developer support member and the potential of an exposed portion of the latent image support member; a proportion of the toner in the developer is in a range from 5 to 10% by weight; a time constant of the developer is less than or equal to 40 msec; and the developing step comprises applying developing bias voltage to the developer support member such that an amount of the toner transferred to the latent image support member reaches a saturated range. An image forming device to which the above method is applied and an electrostatic latent image developer used in the above method and device are also provided.
摘要:
A transparent or opaque sheet is affixed onto the inner surface of a side door window glass of a vehicle for coloration, light blockage, decoration and the like. In the sheet-affixed window glass, the sheet is directly but detachably affixed onto the inner surface of the window glass via a front holder and a back holder.
摘要:
The present invention provides a drain clip for use in combination with a weather strip for an automobile to drain water leaked into the weather strip attached to the flange of the body of the automobile, capable of being securely attached to a weather strip at a predetermined position on the weather strip so that the drain clip may not fall off the weather strip or may not be dislocated, and of improving the efficiency of the work for attaching the weather strip to the body of an automobile. The drain clip has a base part having an L-shaped cross section and provided in its outer surface with a drain groove formed so as to extend from one to the other end thereof. One of the legs of the drain clip is inserted between the flange of the body of the automobile and the weather strip put on the flange to form a drain passage connecting the internal space of the weather strip and the external environment. Bar-shaped holding arms project slightly obliquely inward and in opposite directions from the opposite side edges of one of the legs of the base part, respectively, so as to be engaged with one of the inner holding lips of the weather strip with their tips pressed against the inner surface of the weather strip.
摘要:
A mimeographic transfer printing machine includes a stencil support drum for supporting a stencil, an ink supply device for forcing ink through the stencil supported on the stencil support drum, an ink receiving transfer drum to which the ink forced out from the stencil is to be transferred, and a sheet support device for supporting a printing sheet to which the ink on the ink receiving transfer drum is to be transferred. The stencil support drum has a slightly larger diameter than the transfer drum so that the circumferential speed of the stencil support drum is greater than that of the transfer drum to provide to the stencil a tension acting in a direction opposite to the rotation of the stencil support drum.
摘要:
An electrically conductive thick film resin composition comprising finely divided particles of (1) a conductive metal dispersed in a liquid organic medium comprising (2) acrylic polymer primary binder and (3) network resin auxiliary binder having a thermal degradation temperature of at least 300 C. dissolved in (4) volatile organic solvent.
摘要:
A disk drive housing structure has a rotating disk for recording information and a transducer adapted to write and read information on and from the disk. The structure further includes a positioning system having at least an arm to which the transducer is fixed and which is adapted to selectively position the transducer along the radial direction of the disk transducer by turning the arm. The structure also includes a member on which the disk, transducer and positioning system are mounted, wherein the mounting member includes a first housing which supports thereon both ends of a rotary shaft of the recording medium and both ends of a rotary shaft of the positioning system, and which has a first aperture part. The first housing further includes a second aperture part through which the disk and the rotary shaft supporting the disk are inserted and to which a supporting member for the rotary shaft of the recording medium is fixed.
摘要:
An electronic revolution rate limiting apparatus is described which generally comprises a transducer for generating a tachometer signal which is indicative of the revolution rate of the internal combustion engine, a circuit for producing a control signal which is responsive to the tachometer signal and the operation state of the engine and which determines the maximum revolution rate for each of a plurality of operation states, and a switch for interacting with the ignition system of the engine to prevent a sparking voltage from being induced in the ignition system in response to the value of the control signal. When the revolution rate limiting apparatus is employed in a power plant in which the operation states comprise a plurality of drive states (e.g., forward, neutral, reverse), the circuit for producing the control signal is also responsive to which drive state the power plant is in, such that the maximum revolution rate may be individually controlled for each drive state.
摘要:
Disclosed is a process for the preparation of a catalyst for the synthesis of methyl formate by dehydrogenating methanol in the gaseous phase, said process being characterized in that (A) at least one phosphate selected from the group consisting of copper phosphates, zinc phosphates and aluminum phosphates, and (B) at least one chloride selected from the group consisting of copper chlorides, zinc chloride, aluminum chloride, alkali metal chlorides and alkaline earth metal chlorides and/or (C) at least one compound selected from the group consisting of alkali metal compounds (exclusive of halides) and alkaline earth metal compounds (exclusive of halides) are added to copper oxide, zinc oxide and aluminum oxide.The catalyst obtained according to this process has a high activity for preparing methyl formate by dehydrogenating methanol in the gaseous phase, and this catalyst is excellent in the heat resistance and durability and has a high mechanical strength.
摘要:
A copper, zinc, aluminum and boron catalyst is used as a low temperature methanol synthesis catalyst. The proportions of the catalyst components, in terms of metal atoms, are 30-70% of copper, 15-50% of zinc, 1-16% of aluminum and 0.3-5.3% of boron. This catalyst is prepared by adding an alumina sol to the mixture of copper, zinc and boron compounds and firing the total mixture.