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    • 1. 发明专利
    • New azo pyrimidine dyestuffs
    • GB822948A
    • 1959-11-04
    • GB325557
    • 1957-01-30
    • RONALD BAKERICI LTD
    • C09B62/24
    • The invention comprises dyes, free from SO3H or COOH groups, and of formula A-N(Z)-R, where R is H or a saturated hydrocarbon residue which may be substituted, A is an organic radicle containing at least one azo group attached to an aryl nucleus, N is attached to a carbon atom in A, and Z is a pyrimidyl nucleus, containing either two Cl atoms in two of the 2, 4 or 6 positions or a Cl atom in one of the 2, 4 or 6 positions and an electronegative group in the 5 position, which pyrimidyl nucleus may be substituted by an alkyl or aryl group. Specified values for R are methyl, ethyl, cyclohexyl and 2-hydroxyethyl. Specified electronegative groups are nitro, cyano and methyl- and ethyl-sulphonyl groups. Specified alkyl and aryl groups are methyl, ethyl and phenyl groups. The dyestuffs are made by normal diazotization and coupling methods or by treating a compound of formula A-NH-R with an appropriate tri- or di-chlor-pyrimidine, specified being 2,4,6-trichloro-and 5 - nitro - 2,4 - dichloro - 6 - methyl-pyrimidines. The reaction is preferably effected in a water-miscible medium in the presence of acid-binding agents. The above aminoazo compounds may be made in conventional fashion from diazo compounds of appropriate arylamines and amino coupling components or from appropriate acylamino-or-nitro-azo compounds. Specified arylamines include aniline, chloro-, methoxy-, methyl-, nitro-, phenyl-, phenoxy-, sulphonamido-, N-substituted sulphonamido-, acetylamino-, cyano-, trifluoromethyl- and ethylsulphonyl-anilines, acetyl-benzidine, a - and b -naphthylamines, 5-nitro-2-aminothiazole and 6 - methylsulphonyl - 2 - aminobenzthiazole. Indicated coupling components include aniline, methyl-, methoxy- and N-alkyl- and N-b 1-aminoethyl and - b - hydroxyethyl - anilines, 4 - acetylaminophenol, 1 - amino - 7 - naphthol, N,N - di - (b - hydroxyethyl) - m - phenylene diamine, 1 - (31 - and 41 - aminophenyl) - 3 - methyl - and - carbethoxy - 5 - pyrazolones. The aminoazo compounds may be dis - or polyazo compounds obtainable by the use of such arylamines as 4 - aminoazobenzene, 1 - (41-amino - 21 - methylphenylazo) - 2 - naphthol, 4-amino - 3 - methoxy - 6 - methyl - 41 - nitro-azoberzene. Preferred are dyestuffs where A is of formula C-N = N-B-, where C is a benzene ring carrying an electronegative group o- or pto the azo group or a benzthiazol- or thiazol-2-yl group and B is a benzene ring and B or C may carry additional substituents, and those where A is E-N = N-B-, where E is a benzene ring containing an OH group o to the azo group and B is as before and B or E may carry additional substituents. The dyestuffs may be admixed with surface active agents, e.g. with the condensation product of naphthalene-2-sulphonic acid and formaldehyde, and mineral oil added to give a non-dusting composition. The dyestuffs dye textiles made from artificial fibres, especially cellulose acetate and polyamides, from an aqueous dispersion in yellow, red and blue tints. Examples are provided of the preparation of the dyestuffs and their use in dyeing processes.
    • 2. 发明专利
    • An improved proportioning valve for mixtures of gases
    • GB491408A
    • 1938-09-01
    • GB2808037
    • 1937-10-15
    • SELAS GAS AND ENGINEERING COMPRONALD BAKERVERE COLE LEESON
    • B01F23/10
    • 491,408. Fluid - actuated. valves. SELAS GAS & ENGINEERING CO., Ltd., BAKER, R., and LEESON, V. C. Oct. 15, 1937, No. 28080. [Class 135] A valve for controlling the mixing of two or more gases in definite predetermined proportions comprises a sleeve valve C with ports C , C moved axially in a cylinder D having ports M N for the different gases by a diaphragm W exposed on its underside to atmospheric pressure and on its upper side to the pressure of the mixed gases which pass axially out of the valve, the sleeve valve being rotatably adjustable at will by means including a pointer H movable over a fixed scale V to vary the relative proportions of the gases. The sleeve valve C is connected by a spindle L to the diaphragm W which is exposed to the pressure of the mixed gases by ports R , R , to atmospheric pressure through a hand-hole P. Gas and air enter the cylinder D from chambers B, K respectively. The sleeve valve is slidable on guide rods I carried by a spindle I which passes through a gland E in a cover plate F. The mixed gases leave the cylinder D through an outlet J. The spindle carries the pointer H which is adjusted by a micrometer screw U. The pointer may be locked in adjusted position. Only one gas port N is provided and the exposed area of this is constant over the range of adjustment, so that if the temperature and pressure of the gases are maintained constant, the scale V gives a true indication of the air to gas ratio. Otherwise a correction must be applied. Specification 3533/07, [Class 135], is referred to.
    • 4. 发明授权
    • Soft landing system and method of achieving same
    • 软着陆系统及其实现方法
    • US08931561B2
    • 2015-01-13
    • US13277395
    • 2011-10-20
    • Ronald BakerPradeep Dhuper
    • Ronald BakerPradeep Dhuper
    • E21B7/12E21B19/00E21B41/10
    • E21B41/0007E21B19/002E21B41/10
    • A subsea wireline system for soft landing equipment during installation. The subsea soft landing wireline system includes coarse alignment members that can be part of a tree and interact with a funnel located on the equipment to be installed by the soft landing system. Smaller alignment members can provide fine alignment and also interact with a funnel located on the equipment to be installed. The funnels are used to trap sea water that provides a cushion for the equipment being installed. Once in alignment, trapped water can be released from the funnel or funnels via a restricted orifice and/or a control valve located on an ROV. The system achieves soft landing without the use of a running tool, thus reducing expense.
    • 安装期间软着陆设备的海底电缆系统。 海底软着陆线系统包括可以是树的一部分并与位于由软着陆系统安装的设备上的漏斗相互作用的粗对准构件。 较小的对准构件可以提供精细对准,并且还与位于要安装的设备上的漏斗相互作用。 漏斗用于捕获为所安装设备提供缓冲垫的海水。 一旦对准,捕获的水可以通过位于ROV上的限制孔和/或控制阀从漏斗或漏斗释放。 该系统在不使用运行工具的情况下实现软着陆,从而降低成本。