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31. 发明授权

US4175448A Electromechanical switching system 失效
标题翻译：机电开关系统
公开(公告)号：US4175448A
公开(公告)日：1979-11-27
申请号：US844468
申请日：1977-10-21
申请人： Peter Loew , Wolfgang Hummel
发明人： Peter Loew , Wolfgang Hummel
IPC分类号： G03G21/00 , G03G15/041 , F16H3/08 , B60K20/10 , B60L5/10 , F16H5/06
CPC分类号： G03G15/041 , Y10T74/19251 , Y10T74/19279 , Y10T74/19437
摘要： An electromechanical switching system which includes a multi-stage gearbox which has a plurality of manually selectable gear ratios corresponding to a plurality of positions of components which are movable between these positions, apparatus for automatically locating the components in the position corresponding to the selected gear ratio, and a device for locking the gearbox in a selected gear ratio while the operation is running. The position of the components is monitored and an indication provided the operator to prevent the start before the components are correctly positioned.
摘要翻译：一种机电开关系统，其包括多级齿轮箱，该多级齿轮箱具有多个可手动选择的齿轮比，其对应于可在这些位置之间移动的部件的多个位置，用于将部件自动定位在与所选齿轮比对应的位置以及用于在操作运行时将齿轮箱锁定在选定的传动比中的装置。监控组件的位置，并指示操作员在组件正确定位之前防止启动。

32. 发明授权

US4146712A Process for the manufacture of coumarin dyes 失效
标题翻译：欧马林染色体制造工艺
公开(公告)号：US4146712A
公开(公告)日：1979-03-27
申请号：US770493
申请日：1977-02-22
申请人： Peter Loew
发明人： Peter Loew
IPC分类号： C09B57/02 , C07D277/62
CPC分类号： C09B57/02
摘要： A process for the manufacture of coumarin dyes of the formula ##STR1## wherein Y represents a sulphur or an oxygen atom and the ring B can carry non-ionogenic substituents or substituted or unsubstituted fused rings, and A represents a hydrogen atom, a hydroxyl, alkoxy or phenoxy group, a nitrogen-containing heterocyclic ring system which is fused to two carbon atoms or represents a group --NR.sub.1 R.sub.2, in which R.sub.1 represents a substituted or unsubstituted alkyl or phenyl group, R.sub.2 represents a hydrogen atom or has one of the meanings assigned to R.sub.1, or R.sub.1 and R.sub.2 together with the nitrogen atom to which they are attached represent a 5- or 6-membered ring system, which process comprises condensing heterocyclic products of the formula ##STR2## wherein R represents a --CN--, --COOR' or ##STR3## group, in which R' represents a substituted or unsubstituted alkyl or aryl group and each of R" and R'" independently can be the same as R' or a hydrogen atom, or together with the nitrogen atom to which they are attached form a heterocyclic 5- or 6-membered ring, and Y and B are as defined above, with the proviso that, if Y represents a sulphur atom, the reaction mixture consisting of malodinitrile and o-aminothiophenols is used as starting material, in the presence of an organic solvent and a catalytic amount of a strong acid, with an aldehyde of the formula ##STR4## wherein A is as defined above.

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