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1. 发明授权

US4406699A High-temperature electrically conductive ceramic composite and method for making same 失效
标题翻译：高温导电陶瓷复合材料及其制造方法
公开(公告)号：US4406699A
公开(公告)日：1983-09-27
申请号：US271889
申请日：1981-06-09
申请人： David E. Beck , Jack G. Gooch , Cressie E. Holcombe, Jr. , David R. Masters
发明人： David E. Beck , Jack G. Gooch , Cressie E. Holcombe, Jr. , David R. Masters
IPC分类号： C04B35/486 , C22C29/12 , C22C30/00 , C04B35/48
CPC分类号： C22C29/12 , C04B35/486
摘要： The present invention relates to a metal-oxide ceramic composition useful in induction heating applications for treating uranium and uranium alloys. The ceramic composition is electrically conductive at room temperature and is nonreactive with molten uranium. The composition is prepared from a particulate admixture of 20 to 50 vol. % niobium and zirconium oxide which may be stabilized with an addition of a further oxide such as magnesium oxide, calcium oxide, or yttria. The composition is prepared by blending the powders, pressing or casting the blend into the desired product configuration, and then sintering the casting or compact in an inert atmosphere. In the casting operation, calcium aluminate is preferably added to the admixture in place of a like quantity of zirconia for providing a cement to help maintain the integrity of the sintered product.
摘要翻译：本发明涉及用于处理铀和铀合金的感应加热应用中的金属氧化物陶瓷组合物。陶瓷组合物在室温下是导电的，并且与熔融铀无反应。该组合物由20至50体积％的颗粒混合物制备。％铌和氧化锆，其可以通过添加另外的氧化物如氧化镁，氧化钙或氧化钇来稳定。通过将粉末混合，将共混物压制或浇铸成所需的产品构型，然后在惰性气氛中烧结铸件或压块来制备组合物。在铸造操作中，优选在混合物中加入铝酸钙代替类似量的氧化锆，以提供水泥以帮助保持烧结产品的完整性。

2. 发明授权

US4305551A Automatic doffing and donning of bobbins on thread winding machines 失效
标题翻译：绕线机上的线轴自动落纱和穿线
公开(公告)号：US4305551A
公开(公告)日：1981-12-15
申请号：US114350
申请日：1980-01-22
申请人： Peter N. Cockshott , Robert J. Cope , David E. Beck
发明人： Peter N. Cockshott , Robert J. Cope , David E. Beck
IPC分类号： B65H67/04 , B65H67/044 , B65H67/06 , B65H54/20
CPC分类号： B65H67/0405 , B65H67/064 , B65H2701/31
摘要： An improved arrangement of thread winders comprising forward facing horizontal cantilevered bobbin winding spindles with automatic bobbin push off means and bobbin supports on rotors arranged for automatic bobbin exchange between the spindles and the supports, one rotor being dedicated to each winder, characterized by, in combination, a hoist for each winder providing an upper and a lower operating position, a rotor for each winder comprising at least two horizontal bobbin supports and rotatable about a vertical axis to align either support with the winder spindle in its lower position for bobbin exchange therewith, and a platform above the rotors providing operator access to the winders in their upper position.
摘要翻译：一种改进的线缠绕机的布置，其包括前置水平悬臂式绕线轴与自动线轴推出装置和绕线架支架，转子上布置有用于主轴和支架之间的自动线轴交换的转子，一个转子专用于每个络纱机，其特征在于组合，用于每个络纱机提供上下操作位置的转子，用于每个络纱机的转子，其包括至少两个水平筒管支架，并且可围绕垂直轴线旋转，以使任一支撑件与卷绕机主轴对准在其下部位置以与其进行纱管交换，并且转子上方的平台提供操作者访问其上部位置的卷绕器。

3. 发明授权

US4252564A Method for cleaning bomb-reduced uranium derbies 失效
标题翻译：清除减少铀的方法
公开(公告)号：US4252564A
公开(公告)日：1981-02-24
申请号：US68358
申请日：1979-08-21
申请人： John G. Banker , Hubert L. Wigginton , David E. Beck , Cressie E. Holcombe
发明人： John G. Banker , Hubert L. Wigginton , David E. Beck , Cressie E. Holcombe
IPC分类号： C22B60/02
CPC分类号： C22B60/0286
摘要： The concentration of carbon in uranium metal ingots induction cast from derbies prepared by the bomb-reduction of uranium tetrafluoride in the presence of magnesium is effectively reduced to less than 100 ppm by removing residual magnesium fluoride from the surface of the derbies prior to casting. This magnesium fluoride is removed from the derbies by immersing them in an alkali metal salt bath which reacts with and decomposes the magnesium fluoride. A water quenching operation followed by a warm nitric acid bath and a water rinse removes the residual salt and reaction products from the derbies.
摘要翻译：通过在镁的存在下通过四氟化铀的还原而制备的铀金属锭中的碳的浓度通过在铸造之前从脱模表面除去残留的氟化镁而有效地降低到小于100ppm。将该氟化镁浸渍在与氟化镁反应并分解氟化镁的碱金属盐浴中，从该脱蜡中除去。然后进行水淬操作，随后进行暖硝酸浴和水冲洗，除去残留的盐和反应产物。

4. 发明授权

US4114338A Reinforcing plate for overlapped joints 失效
标题翻译：重叠接头加强板
公开(公告)号：US4114338A
公开(公告)日：1978-09-19
申请号：US795083
申请日：1977-05-09
申请人： David E. Beck
发明人： David E. Beck
IPC分类号： E04D3/365 , E04B7/00
CPC分类号： E04D3/365
摘要： A reinforcing plate for use underneath two or more lapped thin gauge sheets to stiffen the lapped joint for prevention of damage to the seal from loading and to provide uniform compressant of sealant between the lapped sheets. The plate comprises an elongated planar member having pairs of parallel cuts evenly spaced along its length extending transversely from one edge thereof for substantially one half its width, the material between each of the pairs of cuts being bent into a down turned mounting flange of L-shaped cross section.
摘要翻译：一种加强板，用于两个或多个重叠的薄规格片下面，用于加固搭接的接头，以防止密封件受到损坏，并且在重叠的片材之间提供均匀的密封剂压缩物。板包括细长的平面构件，其具有沿着其长度方向间隔开的一对平行切口，其长度从其一个边缘横向延伸大致一半的宽度，每对切口之间的材料弯曲成L形的向下弯曲的安装凸缘，形截面。

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