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    • 27. 发明公开
    • Hinge mechanisms
    • Gelenkvorrichtungen。
    • EP0073598A1
    • 1983-03-09
    • EP82304345.0
    • 1982-08-18
    • UNIVERSITY OF BRADFORD
    • Baker, Alan
    • F16C11/04E02F3/42B25J17/02B66F11/04
    • B25J17/02B25J9/046B25J17/0241B66F11/044E02F3/42F16C11/04F16C2350/26
    • A hinge mechanism for allowing relative pivotal movements between first and second members (5, 3), of the hinge mechanism comprising a third hinge element (13) pivotally attached to said first member (5) at a first point (15), a second hinge element (27) pivotally attached to the second member (3) at a second point (29), said second hinge element also being pivotally attached to said first hinge element at a third point (25), and there being provided means (21) for applying a force to a fourth point (17) lying on such first hinge element (13) said third point lying between said first and fourth points between one-third and two-thirds of the distance between the two. The hinge is capable of maintaining a substantially constant output torque over 180° of operation and is useful in artificial or prosthetic or robot limbs, elevated platforms, mechanical excavators, diggers or loaders.
    • 铰链机构,用于允许铰链机构的第一和第二构件(5,3)之间的相对枢转运动,包括在第一点(15)处枢转地附接到所述第一构件(5)的第三铰链元件(13) 铰链元件(27)在第二点(29)处枢转地附接到第二构件(3),所述第二铰链元件还在第三点(25)处枢转地附接到所述第一铰链元件,并且设置有装置 ),用于向位于所述第一铰链元件(13)上的第四点(17)施加力,所述第三点位于所述第一和第四点之间的距离的三分之一和三分之二之间。 铰链能够在180°以上的运行范围内保持基本恒定的输出扭矩,并且可用于人造或假肢或机器人肢体,高架平台,机械挖掘机,挖掘机或装载机。
    • 30. 发明公开
    • IMPROVED METHOD FOR METAL PRODUCTION
    • VERBESSERTES VERFAHREN ZUR METALLHERSTELLUNG
    • EP2909350A1
    • 2015-08-26
    • EP13783367.9
    • 2013-10-17
    • University of Bradford
    • KUMARI, JeyaPATEL, Raj
    • C22B5/04C22B34/00C22B34/12
    • C22B3/04C22B1/02C22B5/04C22B34/00C22B34/10C22B34/1236C22B34/1268C22B34/14C22B34/20C22B59/00
    • The invention provides a method for the production of a metal, the method comprising the steps of mixing an oxide of the metal with a reducing agent comprising a Group II metal or a hydride thereof in the presence of water and/or an organic solvent, heating the mixture of oxide and reducing agent, leaching the resulting material with water; and washing the leached material with a dilute aqueous acid. Typically, the metal is a transition or rare earth metal, the oxide of the metal is an oxide of a transition or rare earth metal, and the reducing agent is selected from calcium or magnesium or the hydrides of calcium and magnesium. The metal is generally obtained at a purity of around 98.5-99.1%, and the method is much quicker than the methods of the prior art and has a much lower carbon footprint, thereby providing an option which is more sustainable, environmentally friendly, and accommodative for industries. Particularly good results are observed in the production of transition metals such as titanium, tantalum and niobium.
    • 本发明提供一种制备金属的方法,该方法包括以下步骤:在水和/或有机溶剂的存在下,将金属的氧化物与包含第II族金属或其氢化物的还原剂混合,加热 氧化还原剂的混合物,用水浸出所得材料; 并用稀酸水溶液洗涤沥滤材料。 通常,金属是过渡金属或稀土金属,金属的氧化物是过渡金属或稀土金属的氧化物,并且还原剂选自钙或镁或钙和镁的氢化物。 该金属的纯度通常为约98.5-99.1%,该方法比现有技术方法快得多,并且具有低得多的碳足迹,从而提供了更可持续,环保和调节的选择 为行业。 在过渡金属如钛,钽和铌的生产中观察到特别好的结果。