Production of glazed articles
    1.
    发明专利

    公开(公告)号:GB614542A

    公开(公告)日:1948-12-16

    申请号:GB2196646

    申请日:1946-07-23

    Abstract: 614,542. Glazed articles. LAFARGE ALUMINOUS CEMENT CO., Ltd., and ROBSON, T. D. July 23, 1946, No. 21966. [Class 56] Glazed articles are formed of refractory concrete (as defined below) coated with a glaze which remains sufficiently viscous at the firing temperature to remain on the surface of the article, fired and cooled. The refractory concrete comprises crushed firebrick, building brick, asbestos or the like and a hydraulic cement of high alumina content, and when the articles have set after moulding, air holes &c. may be filled with powdered fired refractory clay. The glaze should have a high melting range which may be obtained by increasing the alumina or aluminium silicate content, e.g. a glaze for clay articles with 60 per cent of fine ground China clay incorporated is satisfactory. A coating of 3 oz. per square foot of the glaze composition ; silica 36.5 per cent, alumina 22.0 per cent, lime 2.5 per cent, ferric oxide 1.0 per cent, lead oxide 23.5 per cent, zinc oxide 11.5 per cent, alkalis 2.0 per cent, may be applied and fired at about 1000‹ C. for at least 3 hours with previously fired concrete or at least 12 hours with unfired concrete. A preliminary coating of China or Ball clay may first be applied to the article, without additional heating, and this clay slip may contain 5-15 per cent of the composition, quartz sand 35 parts, lead oxide 58 parts, and kaolin 7 parts.

    Improvements in and relating to the manufacture of nitriles

    公开(公告)号:GB583586A

    公开(公告)日:1946-12-20

    申请号:GB2176044

    申请日:1944-11-06

    Abstract: Benzoic acid and substituted benzoic acids, or anhydrides thereof, but excluding compounds carrying as substituents hydroxyl amino, alkoxy, aryloxy and carboxyl groups, are converted into the corresponding nitriles by heating with a sulphonamide, e.g. benzene-or p-toluenesulphonamide, at an approximate temperature range of 220-240 DEG C. The reaction is especially applicable to the production of substituted benzonitriles carrying as substituent a sulphone group, R.SO2-, wherein R may represent an alkyl, aryl or aralkyl group. In examples, the following nitriles are obtained by heating the reactants at 225 DEG C. for an optimum period, e.g. 1 1/2 hours, determined by a preliminary test: (1) p-cyanophenyl methyl sulphone, from benzenesulphonamide and p-carboxyphenyl methyl sulphone; p-cyanoethyl-, and p-cyanophenyl propyl sulphones are prepared similarly; (2) pp1-dicyanodiphenyl sulphone, from benzenesulphonamide and pp1-dicarboxydiphenyl sulphone; (3) benzonitrile, from benzenesulphonamide and benzoic acid; (4) p-nitrobenzonitrile, from benzenesulphonamide and p-nitrobenzoic acid; (5) p-nitrobenzonitrile, from toluene-p-sulphonamide and p-nitrobenzoic acid anhydride; (6) 2 : 4-dichlorbenzonitrile, from benzenesulphonamide and 2 : 4-dichlorobenzoic acid; (7) o-nitrobenzonitrile, from benzenesulphonamide and o-nitrobenzoic acid; (8) ammonium p-cyanobenzenesulphonate, from benzenesulphonamide or toluene p-sulphonamide and p-sulphamidobenzoic acid, heated together at 235 DEG C.

    Improvements relating to the manufacture of p-amino methyl phenyl sulphones and salts thereof

    公开(公告)号:GB583585A

    公开(公告)日:1946-12-20

    申请号:GB2175944

    申请日:1944-11-06

    Abstract: Sulphones of the formula R-SO2-C6H4-CH2NH2, wherein R is an alkyl, aralkyl or aryl group are prepared by hydrogenating the cyano phenol sulphone of formula R1-SO2-C6H4-CN, wherein R1 is an alkyl, aralkyl or aryl group. When R1 is aryl it may contain a cyanide group which becomes reduced to an aminomethyl group. In the examples, ethyl-or methyl-p-aminomethylphenyl sulphone or di-(p-aminomethyl phenyl) sulphone are prepared as hydrochlorides by treating with hydrogen in the presence of a Raney nickel catalyst, ethyl- or methyl-p-cyanophenylsulphone or di(-p-cyanophenyl)sulphone respectively, dissolving in dilute hydrochloric acid and concentrating.

    SYSTEM AND METHOD FOR MANAGING REDUCED PRESSURE DELIVERED TO A TISSUE SITE
    4.
    发明申请
    SYSTEM AND METHOD FOR MANAGING REDUCED PRESSURE DELIVERED TO A TISSUE SITE 审中-公开
    用于管理递送到组织场所的减少压力的系统和方法

    公开(公告)号:WO2012145543A1

    公开(公告)日:2012-10-26

    申请号:PCT/US2012/034299

    申请日:2012-04-19

    CPC classification number: A61M1/0033 A61M1/0066 A61M1/0088

    Abstract: The illustrative embodiments described herein are directed to an apparatus and method for managing reduced pressure at a tissue site. The apparatus comprises a pump for supplying reduced pressure for application of reduced pressure to the tissue site and a motor coupled to the pump to propel the pump. The apparatus further comprises a drive system electrically coupled to the motor that includes a power source that provides a source of direct current power to the motor during an operational period at a substantially constant current and of sufficient magnitude to supply a targeted reduced pressure during the operational period. The drive system also includes a controller that monitors the pump's loading on the motor by measuring the voltage across the motor to determine whether the motor voltage remains within a predetermined operational range of voltages necessary for maintaining the reduced pressure supplied by the pump proximate to the targeted reduced pressure without directly measuring the reduced pressure using a pressure sensor.

    Abstract translation: 本文描述的示例性实施例涉及用于管理组织部位处的减压的装置和方法。 该装置包括用于向组织部位施加减压以供应减压的泵和耦合到泵的马达以推进泵。 该装置还包括电耦合到电动机的驱动系统,该驱动系统包括电源,该电源在基本上恒定的电流和足够大的工作周期期间向电动机提供直流电源,以在运行期间提供目标​​减压 期。 驱动系统还包括控制器,其通过测量电动机两端的电压来监视泵的负载,以确定电动机电压是否保持在维持由泵提供的减压接近于目标所需的电压的预定操作范围内 使用压力传感器直接测量减压而减压。

    REFLECTOR
    8.
    发明申请
    REFLECTOR 有权
    反射器

    公开(公告)号:US20150333409A9

    公开(公告)日:2015-11-19

    申请号:US12707224

    申请日:2010-02-17

    Abstract: A satellite antenna arrangement for a satellite communication system comprising: a reflector for producing a far field pattern with near-zero field strength at a predetermined location to reject unwanted signals from said predetermined location or minimise signal power transmitted to said predetermined location, the reflector having a surface comprising a stepped profile arranged to generate the near-zero field strength in the predetermined location. The stepped profile may comprise a radial step. The location of the near-zero field strength can be steered by moving the reflector or by adjusting the amplitude and phase of an additional beam that covers substantially the same region as the main beam reflected by the reflector.

    Abstract translation: 一种用于卫星通信系统的卫星天线装置,包括:反射器,用于产生在预定位置具有接近零场强的远场图案,以排除来自所述预定位置的不需要的信号或最小化传输到所述预定位置的信号功率,反射器具有 表面,其包括被布置成在预定位置产生近零场强的阶梯轮廓。 阶梯轮廓可以包括径向台阶。 可以通过移动反射器或通过调整覆盖与由反射器反射的主光束基本相同的区域的附加光束的幅度和相位来控制近零场强的位置。

    Reflector
    9.
    发明授权
    Reflector 有权
    反射器

    公开(公告)号:US09190716B2

    公开(公告)日:2015-11-17

    申请号:US12707224

    申请日:2010-02-17

    Abstract: A satellite antenna arrangement for a satellite communication system comprising: a reflector for producing a far field pattern with near-zero field strength at a predetermined location to reject unwanted signals from said predetermined location or minimize signal power transmitted to said predetermined location, the reflector having a surface comprising a stepped profile arranged to generate the near-zero field strength in the predetermined location. The stepped profile may comprise a radial step. The location of the near-zero field strength can be steered by moving the reflector or by adjusting the amplitude and phase of an additional beam that covers substantially the same region as the main beam reflected by the reflector.

    Abstract translation: 一种用于卫星通信系统的卫星天线装置,包括:反射器,用于产生在预定位置具有接近零场强的远场图案,以排除来自所述预定位置的不需要的信号或最小化传输到所述预定位置的信号功率,反射器具有 表面,其包括被布置成在预定位置产生近零场强的阶梯轮廓。 阶梯轮廓可以包括径向台阶。 可以通过移动反射器或通过调整覆盖与由反射器反射的主光束基本相同的区域的附加光束的幅度和相位来控制近零场强的位置。

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