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    • 82. 发明授权
    • Fluid-actuated hollow power chuck
    • 流体致动空心动力卡盘
    • US4434990A
    • 1984-03-06
    • US322251
    • 1981-11-17
    • Takeo Kobayashi
    • Takeo Kobayashi
    • B23B31/16B23B31/167B23B31/30B23B5/34
    • B23B31/302B23B31/1605Y10T279/1208Y10T279/1986
    • A fluid-actuated type hollow power chuck has a hollow cylindrical chuck body with a forward part of larger outer diameter and a rearward part of small outer diameter. A cylinder body of a hollow cylindrical shape is secured to and around to the outer surface of the rearward part of the chuck body so as to form an annular cylinder chamber. A piston slidable in the cylinder chamber to operate the jaws has a piston sleeve extending rearward therefrom between the chuck body and the cylinder body, the displacements of the piston sleeve being detected at points rearward of the cylinder body by proximity switches installed in a ring disposed to the rear of the cylinder body, whereby displacements of the jaws are indirectly indicated by the switches.
    • 流体致动型中空动力卡盘具有中空圆柱形卡盘体,其具有较大外径的前部和小外径的后部。 中空圆柱形的圆筒体固定到卡盘体的后部的外表面并且周围,以形成环形气缸室。 在气缸室中可滑动以操作钳口的活塞具有从卡盘主体和缸体之间向后延伸的活塞套筒,活塞套筒的位移通过安装在环中的接近开关在气缸体的后面的点处被检测 到缸体的后部,由此开关间接地指示夹爪的位移。
    • 83. 发明授权
    • 7-Oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid derivatives, their
use and preparation
    • 7-氧代-1-氮杂双环[3.2.0]庚-2-烯-2-羧酸衍生物,其用途和制备方法
    • US4377591A
    • 1983-03-22
    • US239139
    • 1981-02-27
    • Tetsuo HiraokaTakeo KobayashiNoboru IshidaShinichi Sugawara
    • Tetsuo HiraokaTakeo KobayashiNoboru IshidaShinichi Sugawara
    • C07D477/00A61K31/397A61K31/40A61P31/04C07D205/08C07D477/14C07F7/10C07F7/18C07F9/568C07D487/04
    • C07D477/14C07D205/08C07F7/10C07F7/186C07F9/5683Y02P20/55
    • 7-Oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid derivatives of formula (I): ##STR1## (in which:) R.sup.1 represents a hydrogen atom or an optionally substituted alkyl group;X represents an oxy group, a thio group, a sulphinyl group or a sulphonyl group;A represents a bivalent for trivalent saturated aliphatic hydrocarbon group;p is 1 (when A is bivalent) or 2 (when A is trivalent);R.sup.2 represents an azido, nitro or cyano group or one of the groups of formula ##STR2## m and n are the same or different and each is 0 or 1; R represents an amidino group or a group of formula R.sup.4, --N(R.sup.4).sub.2 or --YR.sup.4,B represents a group of formula ##STR3## D represents a group of formula ##STR4## (provided that, where m and n are both 1, the groups represented by B and D must be different);R.sup.4 represents a hydrogen atom or an alkyl group and, where there are 2 or more groups represented by R.sup.4, they may be the same or different, andY represents an oxygen atom or a sulphur atom; andR.sup.3 represents a carboxy group or a protected carboxy group)and pharmaceutically acceptable salts thereof are valuable antibiotics and may be prepared by a process which includes heating a corresponding phosphorus-ylide compound.
    • (I)的7-氧代-1-氮杂双环[3.2.0]庚-2-烯-2-羧酸衍生物:其中:R 1表示氢原子或任选取代的烷基 组; X表示氧基,硫基,亚磺酰基或磺酰基; A代表三价饱和脂族烃基的二价; p为1(当A为二价时)或2(当A为三价时); R 2表示叠氮基,硝基或氰基,或者式中的一个基团m和n相同或不同,各自为0或1; R表示脒基或式R4,-N(R4)2或-YR4的基团,B表示式的基团D表示式的基团(条件是,其中m和n均为 1,由B和D表示的基团必须不同); R 4表示氢原子或烷基,其中,R 2表示2个以上基团时,可以相同或不同,Y表示氧原子或硫原子。 并且R 3表示羧基或保护的羧基)及其药学上可接受的盐是有价值的抗生素,并且可以通过包括加热相应的磷内酯化合物的方法来制备。