公开(公告)号：US4773808A

公开(公告)日：1988-09-27

申请号：US15715

申请日：1987-02-17

申请人： Gerhard Fischer ,  Gunter Strocker

发明人： Gerhard Fischer ,  Gunter Strocker

IPC分类号： A01F25/20 ,  B65G11/14 ,  B65G65/36 ,  B65G65/38 ,  B65G65/42

CPC分类号： B65G65/365 ,  A01F25/2009

摘要： In the device according to the invention for emptying bulk material from silos (1), a telescopic fall pipe (24) is used as a delivery shaft for the bulk material to be emptied, which telescopic fall pipe (24) has at least one sliding pipe (27) which is arranged between an upper coupling pipe (25), arranged with the clearing device (4) which can be lifted, and a lower stand pipe (30) or bellows. In order to prevent the sliding pipe (27) from falling down or suddenly slipping through, a fall-prevention feature in the form of a retaining or automatic-retraction device or the like is allocated to the sliding pipe (27), which retaining or automatic-retraction device preferably consists of hydraulic lifting cylinders (36) which control the lifting movements of the sliding pipe. The telescopic fall pipe (24) expediently has only a few pipe sections, preferably only a single sliding pipe (27).

摘要翻译： 在根据本发明的用于从筒仓（1）排空大量材料的装置中，使用伸缩式落管（24）作为要排空的散装材料的输送轴，该伸缩式下降管（24）具有至少一个滑动 布置在布置有可以提升的清理装置（4）的上部联接管（25）和下部立管（30）或波纹管之间的管道（27）。 为了防止滑动管27落下或突然滑动，将保持或自动缩回装置等形式的防坠落特征分配给滑动管（27），滑动管（27）保持或 自动回缩装置优选地由控制滑动管的提升运动的液压提升缸（36）组成。 伸缩式落管（24）有利地只有几个管段，最好只有一个滑动管（27）。

公开(公告)号：US4485397A

公开(公告)日：1984-11-27

申请号：US413216

申请日：1982-08-30

申请人： Karl Scheuter ,  Gerhard Fischer

发明人： Karl Scheuter ,  Gerhard Fischer

IPC分类号： B41C1/00 ,  G03F5/00 ,  H04N1/405 ,  H04N1/40

CPC分类号： H04N1/4051

摘要： A method for producing printing forms by way of irregularly-distributed printing points provides that an image original be opto-electrically scanned across individual surface elements with a desired detail resolution. A gray scale corresponding to the scanning signal is assigned to each surface element and surface elements of the same or approximately the same gradation are combined into sub-surfaces and the individual sub-surfaces are reproduced in accordance with their gradation value by way of a plurality of statistically-distributed printing points whose overall surface coverage within the sub-surface corresponds to the gradation of the sub-surface, whereby the combination of the sub-surfaces is undertaken in accordance with the actual boundaries of the same or approximately the same gradation within the original image.

摘要翻译： 通过不规则分布的印刷点制造印刷形式的方法提供了一种图像原件以期望的细节分辨率在各个表面元件之间光电扫描。 将与扫描信号相对应的灰度分配给每个表面元素，并且将相同或近似相同灰度的表面元素组合成子表面，并且根据它们的灰度值再次通过多个 统计分布的印刷点，其表面覆盖在子表面内的整个表面对应于子表面的灰度，由此根据相同或大致相同灰度的实际边界进行子表面的组合 原始图像。

公开(公告)号：US4482923A

公开(公告)日：1984-11-13

申请号：US245643

申请日：1981-03-31

申请人： Gerhard Fischer ,  Karl Scheuter

发明人： Gerhard Fischer ,  Karl Scheuter

IPC分类号： G03F5/00 ,  H04N1/405 ,  H04N1/40

CPC分类号： H04N1/4051

摘要： Method for producing a printing form by means of scanning a master and the recording surfaces in accord with a scanning raster or, respectively, a conforming recording raster upon employment of a random generator for the distribution of smallest points which are still printable to each raster field of the recording surface, whereby the plurality of said points which are still printable determines the respective tonal value and each raster field at the original side is resolved by means of fine-scanning into surface elements and the elements of approximately identical tonal value are combined to form sub-surfaces. Each raster field at the recording side is composed of surface elements and sub-surfaces, whereby the surface elements of the sub-surfaces at the recording side receive tonal values corresponding in terms of statistical mean, in that the sub-surfaces on the recording side, statistically distributed, are filled with a corresponding plurality of smallest points still printable.

摘要翻译： PCT No.PCT / DE80 / 00110 Sec。 371日期1981年3月31日 102（e）1981年3月24日PCT PCT 1980年7月29日PCT公布。 公开号WO81 / 00466 日期：1981年2月19日。根据使用随机发生器分配最小点的随机发生器，通过扫描主机和记录表面来根据扫描光栅或相应的记录光栅来产生打印形式的方法， 仍然可以打印到记录表面的每个光栅区域，由此仍然可打印的多个所述点确定相应的色调值，并且通过对原始侧面的每个光栅场进行精细扫描来分辨表面元素和 大致相同的音调值被组合以形成子表面。 记录侧的每个光栅场由表面元件和子表面组成，由此记录侧的子表面的表面元件接收与统计平均值相对应的色调值，因为记录侧的子表面 统计分布的，填充有可以打印的对应的多个最小点。

公开(公告)号：US4224287A

公开(公告)日：1980-09-23

申请号：US32904

申请日：1979-04-24

申请人： Siegfried Ziegenbalg ,  Gerhard Fischer ,  Gerhard Haake ,  Rudolf Siebert

发明人： Siegfried Ziegenbalg ,  Gerhard Fischer ,  Gerhard Haake ,  Rudolf Siebert

IPC分类号： C01F7/20 ,  C01F7/22 ,  C01F7/30 ,  C22B3/28 ,  C22B3/38

CPC分类号： C01F7/306 ,  C01F7/22 ,  C22B3/0012 ,  C22B3/0068 ,  C01P2006/11 ,  C01P2006/12 ,  Y02P10/234

摘要： In the process for the preparation of pure aluminum oxide by the steps of hydrochloric acid decomposition of mechanically or thermally activated clay or alumina containing minerals, separating the insoluble residue, removing the iron from the solution, crystallizing the aluminum chloride in the iron-free solution, thermally decomposing the crystallizate to aluminum oxide and recovering the hydrochloric acid from the decomposition gases, the improvement comprising effecting the process by the steps of mechanically pretreating the clay, drying the pretreated clay, thermally or mechanically activating the clay, subjecting the activated clay to circulating leaching, separating the leached material into an SiO.sub.2 containing residue and an AlCl.sub.3 solution, extracting the AlCl.sub.3 solution to an evaporating crystallization and thermally decomposing the crystals to produce .alpha.-Al.sub.2 O.sub.3. All of the stages are interrelated one to the other for maximum recovery of byproducts, heat, acid and the like. The .alpha.-Al.sub.2 O.sub.3 is directly produced in a form of high purity suitable for most applications.

摘要翻译： 在通过盐酸分解机械或热活化的粘土或含氧化铝的矿物质的步骤制备纯氧化铝的过程中，分离不溶残余物，从溶液中除去铁，使无铁溶液中的氯化铝结晶 将结晶物热分解成氧化铝并从分解气中回收盐酸，其改进包括通过机械预处理粘土，干燥预处理的粘土，热或机械活化粘土，将活化的粘土 循环浸出，将浸出的材料分离成含SiO 2的残渣和AlCl 3溶液，将AlCl 3溶液萃取至蒸发结晶并热分解晶体以产生α-Al2O3。 所有的阶段都是相互关联的，用于副产物，热，酸等的最大回收。 直接以大多数应用的高纯度形式生产α-Al2O3。