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44 条记录 (耗时 0.172 秒)

    Preparation of 3-formyltetrahydrothiopyrans
    34.
    发明授权
    Preparation of 3-formyltetrahydrothiopyrans 失效
    3-甲酰基四氢硫代吡喃的制备

    公开(公告)号：US4629799A

    公开(公告)日：1986-12-16

    申请号：US648877

    申请日：1984-09-10

    申请人： Norbert Goetz ,  Dieter Jahn ,  Gernot Reissenweber ,  Heinz Eckhardt

    发明人： Norbert Goetz ,  Dieter Jahn ,  Gernot Reissenweber ,  Heinz Eckhardt

    IPC分类号： B01J23/00 ,  B01J23/40 ,  B01J23/50 ,  C07B61/00 ,  C07D335/02

    CPC分类号： C07D335/02

    摘要： 3-Formyltetrahydrothiopyrans are prepared by hydrogenating a 3-formyl-5,6-dihydro-2H-thiopyran in the presence of a catalyst containing nickel, cobalt, platinum, copper and/or silver; if necessary, the 3-formyl-5,6-dihydro-2H-thiopyrans are prepared by converting bis-(.beta.-formylethyl) sulfides and/or 3-formyl-4-hydroxytetrahydrothiopyrans in the presence of an acidic catalyst, and, if required, these bis-(.beta.-formylethyl) sulfides and/or 3-formyl-4-hydroxytetrahydrothiopyrans are prepared by reacting an acrolein with hydrogen sulfide (a) in the presence of a basic catalyst and of methylene chloride, aromatic hydrocarbons and/or 1,1,2-trichloroethane as solvents, and/or (b) in the presence of a carboxamide.The compounds obtainable by the process according to the invention are useful starting materials for the preparation of dyes, drugs and pesticides.

    摘要翻译： 在含镍，钴，铂，铜和/或银的催化剂存在下，通过氢化3-甲酰基-5,6-二氢-2H-噻喃来制备3-甲酰基四氢硫代吡喃; 如果需要，3-甲酰基-5,6-二氢-2H-噻喃通过在酸性催化剂存在下转化双 - （β-甲酰乙基）硫化物和/或3-甲酰基-4-羟基四氢硫代吡喃来制备，如果 所需的这些双 - （β-甲酰乙基）硫化物和/或3-甲酰基-4-羟基四氢硫代吡喃是通过丙烯醛与硫化氢（a）在碱性催化剂和二氯甲烷，芳烃和/或 1,1,2-三氯乙烷作为溶剂，和/或（b）在甲酰胺存在下。 通过本发明的方法可获得的化合物是用于制备染料，药物和农药的有用的起始材料。

    Increasing the sugar content of plants
    36.
    发明授权
    Increasing the sugar content of plants 失效
    增加植物的糖含量

    公开(公告)号：US4618362A

    公开(公告)日：1986-10-21

    申请号：US760042

    申请日：1985-07-29

    申请人： Rainer Becker ,  Dieter Jahn ,  Ulrich Schirmer ,  Eberhard P. Schott ,  Bernhard Hesse ,  Johann Jung

    发明人： Rainer Becker ,  Dieter Jahn ,  Ulrich Schirmer ,  Eberhard P. Schott ,  Bernhard Hesse ,  Johann Jung

    IPC分类号： A01N43/08 ,  A01N43/16 ,  A01N43/18 ,  A01N43/22 ,  A01N43/32

    CPC分类号： A01N43/32 ,  A01N43/08 ,  A01N43/16 ,  A01N43/18 ,  A01N43/22

    摘要： The sugar content of plants is increased by a method in which the plants are treated, from 1 to 15 weeks prior to harvesting, with a compound of the formula (I) ##STR1## where R.sup.1 is alkyl of 1 to 4 carbon atoms, R.sup.2 is alkyl of 1 to 4 carbon atoms, unsubstituted or halogen-substituted alkenyl of 3 to 5 carbon atoms or alkynyl of not more than 5 carbon atoms, R.sup.3 is a non-aromatic heterocyclic structure which has 5 to 7 ring members and no double bonds or one double bond in a heterocyclic ring, contains 1 or 2 hetero atoms from the group consisting of sulfur and oxygen, and can be substituted by alkyl of not more than 3 carbon atoms, and X is H or C00-alkyl, or one of its plant-tolerated salts.

    摘要翻译： 植物的糖含量通过其中在收获前1至15周用植物处理的方法来增加，其中R1为1-4个碳原子的烷基（Ⅰ）化合物。 原子，R 2为1至4个碳原子的烷基，未取代的或具有3至5个碳原子的卤素取代的烯基或不超过5个碳原子的炔基，R 3是具有5至7个环成员的非芳族杂环结构， 杂环中没有双键或一个双键，含有来自硫和氧的1或2个杂原子，并且可以被不多于3个碳原子的烷基取代，X是H或COO-烷基， 或其植物耐受性盐之一。

    Gear rack for a mining machine
    39.
    发明授权
    Gear rack for a mining machine 失效
    采矿机齿轮架

    公开(公告)号：US4397199A

    公开(公告)日：1983-08-09

    申请号：US217540

    申请日：1980-12-17

    申请人： Dieter Jahn

    发明人： Dieter Jahn

    IPC分类号： E21C29/02 ,  F16H19/00 ,  F16H1/04

    CPC分类号： F16H19/04 ,  E21C29/02 ,  Y10T74/1967

    摘要： Rack segments are formed with teeth to mesh with drive gears of a mining machine to propel it along a conveyor. The drive gears are spaced apart and mounted on a drive shaft with a sleeve member therebetween to engage the top surface of a rack segment. The rack segment has a rectangular body with arch-shaped upper and lower surfaces. Opposite end portions have a vertical hole to receive a support member which is anchored in place by a pin passed through an opening transversely thereto and arranged along a horizontal plane of symmetry. Attachments forming gear teeth project at uniformly-spaced intervals from opposite lateral sides of the rack body. The attachments have involute-like flanks extending upwardly and downwardly from the horizontal plane of symmetry such that a worn rack segment can be continually used by inverting its position 180.degree..

    摘要翻译： 机架部分形成有齿，以与采矿机的驱动齿轮啮合，以沿输送机推进。 驱动齿轮间隔开并安装在驱动轴上，其间具有套筒构件以接合齿条段的顶表面。 齿条段具有矩形的上表面和下表面的矩形体。 相对的端部具有垂直孔，以接收支撑构件，该支撑构件通过穿过横向于其的开口并且沿着水平对称平面布置的销锚固在适当位置。 形成齿轮齿的附件与机架主体的相对侧面以均匀间隔的间隔突出。 附件具有从水平对称平面向上和向下延伸的渐开线状侧翼，使得磨损的齿条段可以通过倒转其位置180°而连续使用。

    Cutter drum support arm for longwall mining machine
    40.
    发明授权
    Cutter drum support arm for longwall mining machine 失效
    切割鼓支撑臂为长壁采矿机

    公开(公告)号：US4328996A

    公开(公告)日：1982-05-11

    申请号：US164441

    申请日：1980-06-30

    申请人： Dieter Jahn

    发明人： Dieter Jahn

    IPC分类号： E21C25/08 ,  E21C27/02 ,  E21C27/24

    CPC分类号： E21C25/08 ,  E21C27/02

    摘要： A support arm for a cutter drum carried on a longwall mining machine characterized in being formed from two telescoping parts, at least one of which is movable axially relative to the other to change the length of the arm. This enables the mining machine to cut material from a coal seam with one support arm length and roadways at opposite ends of the seam face with longer support arm lengths without the necessity for raising the mining machine on its support tracks in the roadway areas or otherwise adjusting the vertical heights of the support arms.

    摘要翻译： 一种用于在长壁采矿机上承载的切割滚筒的支撑臂，其特征在于由两个伸缩部分形成，其中至少一个可相对于另一个轴向移动以改变臂的长度。 这使得采矿机能够从具有一个支撑臂长度的煤层切割材料并且在接缝面的相对端处具有较长的支撑臂长度的道路，而不需要在巷道区域的其支撑轨道上升高采矿机，或以其他方式调节 支撑臂的垂直高度。