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公开(公告)号：US3753102A
公开(公告)日：1973-08-14
申请号：US3753102D
申请日：1970-12-11
Applicant: NAT RES DEV
Inventor： BECK M
Abstract: Electrostatic charge is detected in a turbulently flowing material by arranging an electrode so that there is induced on it a potential dependent on the charge concentration in the material, and sensing the magnitude of the alternating component of the induced potential due to the turbulence.
Abstract translation: 在湍流材料中通过布置电极来检测静电荷，使得在其上感应到取决于材料中的电荷浓度的电位，并且感测由于湍流引起的感应电位的交替分量的大小。
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92.发明授权Determination of the mean size of solid particles contained in a fluid by scattering of x-radiation 失效通过X射线散射测定流体中含有的固体颗粒的平均尺寸
公开(公告)号：US3749910A
公开(公告)日：1973-07-31
申请号：US3749910D
申请日：1970-09-28
Applicant: NAT RES DEV
Inventor： CARR BRION K , BRAMWELL S
IPC: G01N23/201 , G01N23/12
CPC classification number: G01N23/201
Abstract: When electromagnetic radiation is passed through a heterogeneous material such as a slurry or suspension, part of the radiation will be scattered by the suspending medium and part by the solid particles contained in said medium. If, for example, the radiation used is X-radiation, and if the suspending medium consists of a relatively low atomic number material while the particles consist of a relatively high atomic number material, then due to the fundamental properties of scattered X-rays the bulk of the Compton or modified scattered X-rays will come from the suspending medium, and the Rayleigh or unmodified scattering will come both from the particles and the suspending medium. If the X-ray energy is suitable, the Rayleigh scattering will be independent of the size of the particles, but the Compton scattering will be markedly dependent on the size of the particles. Comparison of the Compton scattering or of the Rayleigh and Compton scattering provides a measure of the size of the solid particles.
Abstract translation: 当电磁辐射通过诸如浆料或悬浮液的不均匀材料时，部分辐射将被悬浮介质和部分被包含在所述介质中的固体颗粒散射。 例如，如果使用的辐射是X射线，并且如果悬浮介质由相对低的原子序数材料组成，而颗粒由相对高的原子序数材料组成，则由于散射X射线的基本特性， 康普顿或修饰的散射X射线的大部分将来自悬浮介质，并且瑞利或未改性的散射将来自颗粒和悬浮介质。 如果X射线能量是合适的，瑞利散射将不依赖于粒子的大小，但康普顿散射将明显取决于粒子的大小。 康普顿散射或瑞利和康普顿散射的比较提供了固体颗粒尺寸的量度。
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公开(公告)号：US3744632A
公开(公告)日：1973-07-10
申请号：US3744632D
申请日：1970-12-03
Applicant: NAT RES DEV
Inventor： MOZLEY R
CPC classification number: D04H1/655 , A01G31/001 , A01G2031/005 , B03B5/08 , D04H1/64 , D06M15/41
Abstract: Apparatus for the treatment of ores and other solid materials containing fractions of different density comprises a conveyor surface for conveying a suspension of the material upwardly against a downward flow of wash liquid, and shaking means for imparting a shaking motion to the surface to facilitate separation of the fractions contained in the material. In different embodiments, the apparatus comprises (a) washing means for supplying wash liquid to the surface in a dropwise fashion from above the surface at a series of positions spaced across the surface transversely to the direction in which the material is conveyed by the surface, (b) means for feeding the material on to the surface along each of those two sides thereof which are disposed in the general direction in which the material is conveyed by the surface (c) means for imparting a first orbital shaking motion to the surface to facilitate the initial separation of the fractions contained in the material and means for imparting a second orbital shaking motion to the surface of higher amplitude and/or lower frequency than the first to facilitate discharge of the lighter fractions from the surface.
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公开(公告)号：US3742263A
公开(公告)日：1973-06-26
申请号：US3742263D
申请日：1971-04-19
Applicant: NAT RES DEV
Abstract: A device for injecting electric charge into fluids consists of a p-n junction diode having the junctions so positioned that an active region of the semi-conductor is in contact with the fluid. A reverse electric field of a magnitude sufficient to release charge carriers having energies greater than the potential barrier at the surface of the semi-conductor is applied to the junction so that charge carriers are emitted from the active region. An electrode is also immersed in the fluid to enable a drift field to be established to attract charge carriers in the fluid away from the surface of the semi-conductor.
Abstract translation: 用于将电荷注入流体的装置由p-n结二极管组成，该p-n结二极管具有如此定位使得半导体的有源区与流体接触的结。 足以释放具有大于半导体表面处的势垒的能量的电荷载流子的反向电场被施加到结，使得电荷载流子从有源区发射。 电极也浸没在流体中以使得能够建立漂移场以吸引流体中的电荷载体远离半导体的表面。
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公开(公告)号：US3742146A
公开(公告)日：1973-06-26
申请号：US3742146D
申请日：1970-10-20
Applicant: NAT RES DEV
Abstract: The recognition of signals having specific periods is described particularly in relation to recognising vowels. Characteristic frequencies in vowels are recognised by circuits which delay the input signals for an interval related to a frequency to be recognised, correlate the delayed signals with undelayed input signals and integrate the resultant over a short period comparable with the duration of the vowel sound. The magnitude and sign of the integrated signal indicates whether the required signal is present. In order to deal with speech an incoming signal is first passed to a special form of AGC circuit and then divided into low and high frequency components. The presence of characteristic frequencies in these components is determined by the technique described above, and logic circuits indicate what combinations of frequencies and thus what vowels are present.
Abstract translation: 关于具有特定周期的信号的识别特别涉及识别元音。 元音中的特征频率由延迟输入信号与待识别频率相关的间隔的电路识别，将延迟的信号与未延迟的输入信号相关，并将结果与元音的持续时间相比较。 积分信号的幅度和符号表示是否存在所需的信号。 为了处理语音，输入信号首先传递到AGC电路的特殊形式，然后分为低频和高频分量。 这些分量中的特征频率的存在由上述技术确定，并且逻辑电路指示频率的组合以及因此存在什么元音。
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Patent Agency Ranking
公开(公告)号：US3738304A
公开(公告)日：1973-06-12
申请号：US3738304D
申请日：1970-10-26
Applicant: NAT RES DEV
Inventor： DUBERLEY A
CPC classification number: B63B39/06 , G05D1/0875
Abstract: The invention is concerned with an anti-roll stabilization system for ships of the kind in which a fin, in operation, protrudes from the ship below the water-line and is angularly displaced about its axis by power means in response to a fin control signal, wherein a primary signal produced by a sensing device responsive to rolling motion of the ship is processed by a configuration of operational amplifiers programmed to produce a fin control signal having the required phase advance, gain/frequency characteristic to position the fin to reduce the rolling moment of the ship.
Abstract translation: 本发明涉及一种用于船舶的防倾斜稳定系统，其中操作中的鳍片从水下的船舶突出并且响应于翅片控制信号而通过动力装置围绕其轴线成角度地移位 ，其中响应于船舶的滚动运动的感测装置产生的主信号由被编程为产生具有所需相位提前，增益/频率特性的翅片控制信号的配置来处理，以定位翅片以减少滚动 船的时刻
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公开(公告)号：US3736895A
公开(公告)日：1973-06-05
申请号：US3736895D
申请日：1971-06-17
Applicant: NAT RES DEV
Abstract: Apparatus for guiding an edge portion of an article through a stitching machine has supports for supporting the article and sensor means such as a fluid jet and sensor interrupted by the edge of the cloth. The sensor means provides a sewing guidance signal indicative of the position of the edge of the article to be stitched and means responsive to the sewing guidance signal move one or more of the supports to guide the said edge towards the said predetermined position. Preferably the supports support a tubular article in tubular form. In cases where the edge of a tubular article after the stitching operation is displaced relative to the position the edge had before the stitching operation, there may be included seam detector means arranged to detect the beginning of the stitched edge of the tubular article and to discontinue guidance of the edge.
Abstract translation: 用于通过缝合机引导制品的边缘部分的装置具有用于支撑制品和传感器装置的支撑件，例如由布的边缘中断的流体射流和传感器。 传感器装置提供指示要被缝制的物品的边缘的位置的缝纫引导信号，并且响应于缝纫引导信号的装置移动一个或多个支撑件以将所述边缘引向所述预定位置。 优选地，支撑件支撑管状形式的管状物品。 在缝合操作之后管状物品的边缘相对于边缘在缝合操作之前的位置移位的情况下，可以包括接缝检测器装置，其布置成检测管状物品的缝合边缘的开始并停止 引导边缘。
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公开(公告)号：US3720703A
公开(公告)日：1973-03-13
申请号：US3720703D
申请日：1970-07-02
Applicant: NAT RES DEV
IPC: C07C69/747 , A01N53/00 , A01N53/02 , A01N53/10 , C07C45/67 , C07C45/74 , C07C49/657 , C07C49/683 , C07C49/697 , C07C69/74 , C07C69/76
CPC classification number: C07C49/697 , C07C45/67 , C07C45/74 , C07C49/657 , C07C49/683 , Y10S514/937
Abstract: WHERE X1 is halogen, alkyl, alkenyl or aryl, X2, X3 and X4 are hydrogen, halogen or alkyl, R1 and R2 and hydrogen or alkyl and R3 is a group having carbon-carbon unsaturation Alpha to the CH2 group to which R3 is bonded, e.g., R3 phenyl, are prepared by esterification.
Synthetic pyrethroid insecticides, having no methyl substituent in the 3 position on the cyclopentenone ring, and of formulaAbstract translation: 合成的拟除虫菊酯类杀虫剂，在环戊烯酮环上3位没有甲基取代基，式WHERE X1是卤素，烷基，烯基或芳基，X 2，X 3和X 4是氢，卤素或烷基，R 1和R 2以及氢或烷基 R3是与R3键合的CH2基的碳 - 碳不饱和度α，例如R3 =苯基的基团，通过酯化制备。
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公开(公告)号：US3713946A
公开(公告)日：1973-01-30
申请号：US3713946D
申请日：1970-04-23
Applicant: NAT RES DEV
Inventor： MOLYNEUX W
CPC classification number: B29D99/0003 , A63B49/10 , A63B2209/023 , A63B2209/026 , B29C70/04 , B29C70/20 , B29C70/46 , B29C70/542 , B29D22/00 , B29K2105/06 , B29K2307/00 , B29L2031/003 , B29L2031/5245
Abstract: A process for producing a composite material article comprising inserting an inner member together with a mixture of fibrous reinforcement impregnated with partially cured resin, the mixture at least partially enveloping the inner member, into a hollow sheath wherein the mixture fills the space between the inner member and the hollow sheath.
Abstract translation: 一种制备复合材料制品的方法，包括将内部构件与浸渍有部分固化的树脂的纤维增强剂的混合物一起插入，该混合物至少部分地包封内部构件，其中混合物填充内部构件之间的空间 和中空护套。
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公开(公告)号：US3707628A
公开(公告)日：1972-12-26
申请号：US3707628D
申请日：1971-03-22
Applicant: NAT RES DEV
Inventor： BASSETT RICHARD , MULVEY THOMAS
IPC: H01J37/141 , H01J37/26 , G01N23/22
CPC classification number: H01J37/141
Abstract: A magnetic lens, for focusing a beam of charged particles, includes a coil at least part of which, at an end thereof, tapers conically with a half-angle between 20* and 85*. The coil may comprise a plurality of conductors laid concurrently, and cooling means may be provided in contact with the inner surface. Desirably, the coil is shrouded, at least in part, with material of high magnetic permeability. Radiation such as X-rays, from a target in focus beyond the tapering end of the coil, may be detected over a large solid angle.
Abstract translation: 用于聚焦带电粒子束的磁性透镜包括线圈，其至少一部分在其端部以20度和85度之间的半角锥形锥形地成锥形。 线圈可以包括同时放置的多个导体，并且冷却装置可以设置成与内表面接触。 理想地，线圈至少部分地用高导磁率的材料覆盖。 可以在大的立体角上检测来自聚焦超过线圈的锥形端的目标的X射线的辐射。
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