A form depicting optical interference authenticatting device
    41.
    发明授权
    A form depicting optical interference authenticatting device 失效
    一种形式的光学干扰认证装置

    公开(公告)号:EP0165021B1

    公开(公告)日:1989-03-01

    申请号:EP85304031.9

    申请日:1985-06-06

    CPC classification number: G02B1/10 B42D25/29 G02B5/285 G06K19/14 G07F7/086

    Abstract: A hard to simulate, readily distinguishable from counterfeits, optical interference authenticating device comprises a substrate, and two optical interference coatings in interfacial contact on one side of the substrate, one of the optical interference coatings being a contrast coating, the other of the optical interference coatings being a form depicting coating for depicting a form relative to the contrast coating. The optical interference coatings each comprising at least one optical interference layer the material and thickness of which has been selected for the coatings to have different, particular, known spectral reflectance and spectral transmittance characteristics from one another when viewed at a particular angle, such that the form depicting coating is visible by reflected or transmitted light of particular coloration, when viewed at the particular angle, at least in part by optical interference of light partically reflected or transmitted at the interfacial contact. A further optical interference contrast coating may be provided on the substrate and the form depicting coating may be sandwiched between the contrast coatings. The substrate may be transparent, semi-transparent or opaque, depending how the spectral characteristics are to be observed. A marginal edge portion of the form depicting coating may taper in thickness to provide a multicolored auriole around the form. A plurality form depicting coatings may be provided which overlie one another to provide a more complex pattern.

    Breakwater
    43.
    发明公开
    Breakwater 失效
    Wellenbrecher。

    公开(公告)号:EP0244930A2

    公开(公告)日:1987-11-11

    申请号:EP87301526.7

    申请日:1987-02-23

    CPC classification number: E02B3/06

    Abstract: A breakwater comprised of an array of aligned perforated-wall (20,21) caissons (10) having a slab bottom (17) standing on a pervious rubble base (13) and anchored by its own weight incorporates exceptionally heavy ballasting (31) to ensure stability under attack by large waves, i.e. so that the ratio of maximum horizontal thrust force to net downward vertical force is below about 0.46.
    The immersed wall height is much reduced so that the slab bottom lies below mean sea level about 1.3 to 1.7 times the height of the greatest wave predicted, lessening costs of construction and siting. Efficient energy dissipation function is preserved by placement of augmenting mass below the height of the wave trough and by providing flow passages for jets directed by front wall ducts, avoiding increase of reflection coefficient. The mass may be a pervious rubble store, or a lower-grade concrete cast about horizontal duct pipes extending into or wholly through the chamber, or may be metal slabs supported on racks, or may be apertured fairing bodies carried on the front wall. Double-sided breakwaters on coasts where wave incidence occurs only at high tides incorporate a large proportion of ballast mass; when oriented as groins to protect a river mouth, the porting of an intermediate wall allows sands to migrate freely through without accretion.
    The rubble base comprises a core of gravel capped by larger rubble.

    Abstract translation: 由具有排列的穿孔壁(20,21)沉箱(10)阵列组成的防波堤具有站立在可渗透瓦砾基座(13)上并由其自身重量固定的板底(17),其特别是沉重的压载(31)至 确保大波攻击时的稳定性,即最大水平推力与净下垂垂直力的比值低于约0.46。 浸入式墙体高度大大降低,使板坯底部位于平均海平面以下,达到最大波浪高度的1.3〜1.7倍,降低施工成本和选址成本。 通过将波纹槽的高度放置在波谷的高度以下,并通过为前壁导管引导的射流提供流路来保持高效的能量消散功能,避免了反射系数的增加。 质量块可以是透水瓦砾储存器,或者是围绕延伸到或完全通过该腔室的水平管道管道的较低级别的混凝土浇注,或者可以是支撑在机架上的金属板,或者可以是在前壁上承载的开口的整流罩。 仅在高潮期发生波浪发生的沿海双边防波堤包含大部分压载物; 当定位为腹股沟以保护河口时,中间墙的移植允许沙子自由迁移而不增加。 瓦砾基地包括由较大瓦砾覆盖的砾石核心。

    Processes and apparatus for the conversion of sludges
    46.
    发明公开
    Processes and apparatus for the conversion of sludges 失效
    过程和设备改变流程

    公开(公告)号:EP0140811A3

    公开(公告)日:1987-01-21

    申请号:EP84630136

    申请日:1984-09-12

    CPC classification number: C10B7/10 C02F11/10 C10B53/00 Y02W10/40

    Abstract: There is disclosed a new process for the conversion of the organic components of sludge, particularly sewage sludge, to produce useful, storable, energy-containing oil products, apparatus for carrying out the process and a control process for optimisation of the process temperature. The sludge preferably is mechanically dewatered to about 20-25% solids by weight and thermally dried to about 90% solids by weight. The resultant material is comminuted and heated in the apparatus of the invention to at least 250°C in a heating zone in the absence of oxygen to generate a gaseous atmosphere containing volatiles; this atmosphere is then removed, scrubbed of H 2 S and NH 3 if required, and passed preferably in countercurrent flow in a heated reaction zone in intimate contact with the «devolatilized» sludge solids from the heating zone, again in the absence of oxygen, at a temperature of at least 280°C, resulting in catalysed vapour phase oii-producing reactions. The oil vapours are carried out by the gas flow and condensed. The preferred apparatus moves the sludge solids cocurrent with the heating zone atmosphere and countercurrent with the reaction zone atmosphere. In the reaction zone the conveyor not only moves the comminuted sludge along but lifts it and drops it through the gaseous atmosphere for the preferred intimate contact. Preferably the sludge is examined repeatedly by differential scanning calorimetry to generate a thermogram which has been found to reveal immediately the optimum temperature for operation of the reaction zone, and also the anticipated oil yield from the sludge.

    A form depicting optical interference authenticatting device
    47.
    发明公开
    A form depicting optical interference authenticatting device 失效
    一种形式的光学干扰认证设备

    公开(公告)号:EP0165021A3

    公开(公告)日:1986-06-11

    申请号:EP85304031

    申请日:1985-06-06

    CPC classification number: G02B1/10 B42D25/29 G02B5/285 G06K19/14 G07F7/086

    Abstract: A hard to simulate, readily distinguishable from counterfeits, optical interference authenticating device comprises a substrate, and at least one optical interference, form depicting coating on the substrate and partially covering the substrate to delineate a known, distinct and readily distinguishable form thereon. The said at least one optical interference coating comprises at least one optical interference layer having known spectral reflectance and spectral transmittance characteristics when viewed at at least one particular angle so that the form is visible in particular colouration at the or each said particular angle of incidence of light thereon by reflected or transmitted light. At least one other optical interference coating may be provided on the substrate and may completely cover one side of it and the substrate may be transparent, semi-transparent or opaque, depending how the spectral characteristics are to be observed. A marginal edge portion of the form depicting coating may taper in thickness to provide a multi-coloured auriole around the form. When a plurality of form depicting coatings are provided they may partially overlie one another to provide a more complex pattern.

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