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    • 2. 发明授权
    • 1,2,4-Oxadiazole derivatives and herbicide composition containing same
    • 含有1,2,4-恶二唑衍生物和除草剂组合物
    • US4243409A
    • 1981-01-06
    • US1157
    • 1979-01-04
    • Erich SchmidtFriedrich Arndt
    • Erich SchmidtFriedrich Arndt
    • A01N43/82A01N43/836A01N47/20A01N47/30C07D271/06
    • C07D271/06A01N43/82A01N47/20A01N47/30
    • A 1,2,4-oxadiazole derivative of the formula ##STR1## in which R.sub.1 and R.sub.2 are the same or different and are C.sub.1 -C.sub.8 -alkyl, C.sub.3 -C.sub.8 -cycloalkyl, halogeno-C.sub.1 -C.sub.3 -alkyl, phenyl, or phenyl substituted in one or several places by C.sub.1 -C.sub.4 alkyl, and/or C.sub.1 -C.sub.4 -alkoxy and/or trihalogenomethyl and/or halogen and/or cyano or are phenyl-C.sub.1 -C.sub.3 -alkyl, provided that at least one of R.sub.1 or R.sub.2 is constituted by the group ##STR2## in which R.sub.3 is C.sub.1 -C.sub.8 -alkyl, C.sub.3 -C.sub.8 -cycloalkyl, halogeno-C.sub.1 -C.sub.3 -alkyl, C.sub.1 -C.sub.6 -alkoxy, C.sub.1 -C.sub.4 -alkamino or di-C.sub.1 -C.sub.4 -alkamino. The compounds of the invention have a high activity against both mono- and di-cotyl weeds together with a high selectivity for agricultural plants such as rice, winter cereals, maize, cotton, sunflower, peanuts, soybeans, peas, alfalfa, clover and other leguminous plants. They may be applied in preemergence or postemergence application.
    • R 1和R 2相同或不同并且是C 1 -C 8 - 烷基,C 3 -C 8 - 环烷基,卤代-C 1 -C 3烷基,苯基或 在一个或多个位置被C 1 -C 4烷基取代的苯基,和/或C 1 -C 4 - 烷氧基和/或三卤代甲基和/或卤素和/或氰基或苯基-C 1 -C 3 - 烷基,条件是R 1 或R 2由其中R 3为C 1 -C 8 - 烷基,C 3 -C 8 - 环烷基,卤代-C 1 -C 3 - 烷基,C 1 -C 6 - 烷氧基,C 1 -C 4 - 烷基氨基或二-C 1 - C4-烷氨基。 本发明的化合物对单和二叶杂草具有高活性,对农业植物如水稻,冬季谷物,玉米,棉花,向日葵,花生,大豆,豌豆,苜蓿,三叶草等的选择性高 豆科植物。 它们可以在出生前或出苗后应用中应用。
    • 3. 发明授权
    • Apparatus for shaping a wooden workpiece according to a template
configuration
    • 根据模板配置对木制工件进行成型的装置
    • US3942566A
    • 1976-03-09
    • US498370
    • 1974-08-19
    • Erich Schmidt
    • Erich Schmidt
    • B23Q35/10B27C5/00B27C5/06
    • B23Q35/105B27C5/003Y10T409/303024Y10T83/6564Y10T83/875
    • An apparatus for shaping a wooden workpiece according to a template configuration has a carriage displaceable on a track parallel to a guide edge of a template clamped on a table to one side of the track. A workpiece is clamped to a table to the opposite side of the track. A slide is displaceable on the carriage transverse to the track and carries on one end a roller engaging the guide edge of the template and on its other end a driven tool for cutting the shape of the template into the workpiece. The slide is urged toward the workpiece so that virtually no lateral force is exerted against the workpiece, the guide edge acting as a stop positively determining the transverse position of the slide. Another template can support a second feeler roller which is connected via a chain or the like to the tool to raise and lower this tool according to the guide edge on the second template for two-sided cutting of the workpiece.
    • 用于根据模板构造成形木制工件的装置具有可在平行于夹在工作台上的模板的引导边缘的轨道上移动的滑架,该轨道的一侧。 工件被夹紧到轨道的相对侧的工作台。 滑架可在支架上横向于轨道移动,并且在一端上承载与模板的引导边缘接合的辊,并且在另一端上具有用于将模板的形状切割到工件中的从动工具。 滑动件被推向工件,使得实际上没有侧向力施加在工件上,引导边缘用作止挡件,以肯定地确定滑块的横向位置。 另一个模板可以支撑通过链条或类似物连接到工具上的第二探测辊,以根据第二模板上的引导边缘升高和降低该工具,以便对工件进行双面切割。
    • 4. 发明授权
    • Duplicating grinding machine
    • 复印机
    • US4112628A
    • 1978-09-12
    • US784725
    • 1977-04-05
    • Erich Schmidt
    • Erich Schmidt
    • B23Q35/10B24B17/02B24B21/16B24B21/04
    • B24B17/025B23Q35/109
    • This invention relates to a duplicating grinding machine for grinding workpieces of irregular three-dimensional shape, wherein a model and at least one workpiece are mounted side by side in spaced parallel relation to one another between clamping devices so as to be synchronously rotatable about their longitudinal axes, said model and each of said workpieces having associated therewith two carrier arms each, one carrier arm associated with said model and at least one carrier arm associated with said workpiece being interconnected to form a unit and adapted to be brought into pressing engagement with said model and said associated workpiece, respectively, with one carrier arm of a first interconnected unit carrying a scanning roller for scanning said model and adapted to be translated along the length of said model and each other carrier arm of said first unit carrying a motor-driven belt grinding assembly having an endless grinding belt looped around a return roller and a contact roller, and with one carrier arm of a second interconnected unit carrying a second scanning roller for scanning said model opposite said first scanning roller, and each other carrier arm of said second unit carrying a second motor-driven belt grinding assembly disposed opposite said first belt grinding assembly and having a grinding belt provided with a different grinding layer and also looped around a return roller and a contact roller.BACKGROUND OF THE INVENTIONA duplicating grinding machine of the above described type is known from DT-OS No. 2,311,011. In this machine there is provided a model adapted to be scanned by two scanning rollers. Each of the two scanning rollers is connected to a separate belt grinding assembly through an individual carrier arm unit. For rational working of the workpiece, one belt grinding assembly is provided with a coarse grinding belt, and the other, with a fine grinding belt.This arrangement permits the workpiece to be shaped to its final form in a single cycle of operations from a wooden block without any preshaping, or to be coarse- and fine-ground subsequent to preshaping.In various technical fields, use is made of shaped objects not consisting of a homogenous material, such as wood, but comprising two or more materials. Shaping of such objects is conventionally performed in such a manner that individual parts thereof are separately shaped to matching forms and are then assembled, or that the individual parts are separately preshaped to a certain degree of accuracy, whereupon they are assembled and finished manually, such as by hand-grinding.The reason for this separate shaping or preshaping resides in the fact that different materials require different working technologies. It is generally known that the milling tools required for milling metals are different from those required for milling plastics or wood. The same applies to grinding or different materials. Depending on hardness and other properties of such materials, the grinding material employed is required to have different properties with respect to grain size, grain embedding, material of grains, elasticity of the grinding belt etc.. Employ of the wrong type of grinding belt for a specific material may result in rapid wear of the grinding belt. Thus a wood grinding belt employed for grinding metal will be blunted very rapidly.Workpieces consisting of several materials are encountered rather often in practice, examples being rifle stocks, golf club heads etc. These workpieces frequently comprise a material combination of wood and metal, or wood and plastics, respectively. A golf club head usually comprises all three of these materials.Accordingly, there has for considerable time existed a demand, for instance in the weapons industry, for a solution permitting a more rational working of workpieces consisting of different materials.It is therefore an object of the invention to provide an improved duplicating grinding machine of the type described above, permitting to finish workpieces consisting of different materials in a single cycle of operations and preferably on all sides.In order to attain this object, the invention provides that for grinding on all sides and in a single cycle of operations a workpiece consisting of at least two materials having different grinding properties, such as of wood and metal, the model is divided into at least two partial models complementing one another with respect to accurate working of the workpiece on all sides in such a manner that at least one working shape surface for engaging the belt grinding assembly with the workpiece under the control of the scanning roll of one partial model is offset with respect to at least one such working shape surface of the other partial model, and that in the remaining shaping region each partial model comprises raised portions, wherein one partial model for grinding one of said materials is associated with the scanning roller of the first carrier arm unit, which is provided with a belt grinding assembly suitable for working the first material, while the other partial model for grinding the second material is associated with the scanning roller of the second carrier arm unit, itself provided with a belt grinding assembly suitable for working said second material.In the duplicating grinding machine according to the invention there are as many partial models as there are materials having different grinding properties in the workpiece. In such cases, in which a plastics material is employed having the same grinding properties as wood, it is not required to provide a separate partial model for working said plastics material.The partial models have a configuration resulting in the operative engagement of the associated belt grinding assembly being positively restricted to that portion of the workpiece for the working of which the respective belt grinding assembly is provided. In those portions not to be worked by a particular belt grinding assembly, the scanning roller guides the belt grinding assembly past the workpiece.The duplicating grinding machine according to the invention offers the great advantage that it is now possible to finish a ready-assembled workpiece consisting of different materials without any hand-finishing, a feat which was hitherto not possible. This results in a considerable rationalization and corresponding economies in the production. Further the duplicating grinding machine according to the invention permits to achieve a very high degree of accuracy in shaping a workpiece in a very simple manner.In an advantageous embodiment the invention provides that the partial models are located side by side in a single plane and that the two carrier arm units are disposed opposite one another with respect to the partial models. If two carrier arm units are employed, this constitutes the most efficient arrangement, since the carrier arm units may then be translatably mounted laterally of the clamping devices for the workpieces and models without interfering with one another.Certain workpieces may require overlapping working by two or more belt grinding assemblies. This may specifically be the case in interface areas where a smooth transition is required. In this case it is advantageous if the working shape surfaces of the partial model controlling working of the harder material are disposed in overlapping relation with the working shape surfaces of the other partial model.In this manner it is ensured that only the belt grinding assembly provided for working the harder material grinds over the softer material. This does not result in the harder grinding belt being damaged, although the finish achieved on the softer material will then not be as smooth as that achieved with the grinding belt provided for this particular material.In another advantageous embodiment the invention provides that the grinding belt employed for the harder material is longer than the other one. This results in the durability of the two belts being substantially equal, since the wear per length unit of the grinding belt provided for the harder material will then be reduced due to its increased length.
    • 本发明涉及一种用于研磨不规则三维形状的工件的复制研磨机,其中模型和至少一个工件在夹持装置之间彼此间隔开地并排安装,以便能够围绕其纵向 所述模型和每个所述工件具有与其相关联的两个承载臂,每个承载臂与所述模型相关联的一个承载臂和与所述工件相关联的至少一个承载臂互连以形成单元并适于与所述 模型和所述相关联的工件,分别具有携带用于扫描所述模型的扫描辊的第一互连单元的一个承载臂,并且适于沿着所述模型的长度平移并且所述第一单元的每个其他承载臂承载电动驱动 带式研磨组件具有围绕返回辊和接触滚筒环绕的环形研磨带 r,并且具有第二互连单元的一个承载臂,其承载用于扫描与所述第一扫描辊相对的所述模型的第二扫描辊,并且所述第二单元的每个其他承载臂承载第二电动机驱动带磨削组件,
    • 5. 发明授权
    • Programmed contour copying machine
    • 编程轮廓复印机
    • US3960188A
    • 1976-06-01
    • US534276
    • 1974-12-19
    • Erich Schmidt
    • Erich Schmidt
    • B23Q35/10B27C5/00B23B3/28
    • B23Q35/109B27C5/003Y10T409/300896Y10T409/30112
    • A contour-copying machine in which a plurality or workpieces are spanned between headstocks and tailstocks and rotatable synchronously about respective parallel axes parallel to the rotation axis of a pattern with a feeler roller engaging the pattern and a plurality of tools linked to the feeler roller cutting the contour of the pattern into the workpieces is programmed so as separately to cut longitudinally extending planar surfaces in the workpieces and to form rounded contours along these workpieces. To this end the machine is indexed through a plurality of angular positions each corresponding to one of the planar surfaces and the pattern and workpieces are restrained from rotating as these longitudinally extending planar surfaces cut into them. Once all of the longitudinally extending planar surfaces are formed, the workpiece is rotated continuously and the tools cut the remaining rounded surfaces in these workpieces. Thus it is possible in one single device accurately to form a workpiece with perfectly planar flat surfaces and accurately contoured rounded surfaces.
    • 一种轮廓复制机,其中多个或工件跨越头架和尾座之间,并且可绕平行于图案的旋转轴线的相应平行轴线同步旋转,其中接触图案的触角滚子和连接到测头滚轮切割的多个工具 将工件的图案的轮廓分开编程以切割工件中的纵向延伸的平坦表面并且沿着这些工件形成圆形轮廓。 为此,机器通过多个角位置进行索引,每个角位置对应于一个平面表面,并且当这些纵向延伸的平面被切入时,图案和工件被限制旋转。 一旦形成了所有纵向延伸的平坦表面,工件就会连续旋转,并且工具切割这些工件中剩余的圆形表面。 因此,可以在一个单一设备中精确地形成具有完全平坦的平坦表面和精确成型的圆形表面的工件。
    • 9. 发明授权
    • System for shaping and finishing wood chair seats
    • 木椅座椅成型和整理系统
    • US3942288A
    • 1976-03-09
    • US373873
    • 1973-06-26
    • Erich Schmidt
    • Erich Schmidt
    • B23Q7/03B24B17/00B24B19/26B24B21/16B24B7/28B24B17/02
    • B24B17/00B23Q7/035B24B19/26B24B21/16
    • A succession of wood workpieces is displaced by a conveyor past a plurality of finishing stations with the grain of the workpieces extending perpendicular to the transport direction. An abrasive surface of a finishing tool is displaced over the workpiece parallel to the grain direction at a peripheral speed equal to about 150 times the advance speed of the workpieces. These workpieces are wood chair seats formed with a surface depression and the abrasive surface is a sanding belt spanned over a vertically displaceable soft drum or cushion. The soft support for the sanding belt is displaced vertically by a cam arrangement to conform the path of travel of the sanding surface to the workpiece. The sanding region of one station is staggered transversely to the transport direction with respect to the other stations.
    • 随着工件的颗粒垂直于运输方向延伸,一系列木工件被输送机移动通过多个精加工站。 精加工工具的研磨表面以等于工件的提前速度的150倍的圆周速度在工件上平行于晶粒方向移位。 这些工件是形成有表面凹陷的木椅座,研磨表面是穿过可垂直移位的软鼓或垫子的砂带。 砂带的软支撑件通过凸轮装置垂直移位,以使磨砂表面的行进路径符合工件。 一个站的砂磨区相对于其他站横向于运输方向交错。