Ship stabilization apparatus
    41.
    发明授权
    Ship stabilization apparatus 失效
    船舶稳定装置

    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

    Guiding apparatus for a stitching machine
    42.
    发明授权
    Guiding apparatus for a stitching machine 失效
    用于缝纫机的导向装置

    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

    CPC classification number: D05B23/00 D05B33/00

    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。

    Insecticides
    43.
    发明授权
    Insecticides 失效
    杀虫剂

    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

    Inventor: ELLIOTT M JANES N

    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 formula

    Abstract 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。

    Magnetic lenses
    45.
    发明授权
    Magnetic lenses 失效
    磁性镜片

    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

    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。

    Three-phase induction-motor, speed-changing method and control circuit
    46.
    发明授权
    Three-phase induction-motor, speed-changing method and control circuit 失效
    三相感应电机,变速方式和控制电路

    公开(公告)号:US3703672A

    公开(公告)日:1972-11-21

    申请号:US3703672D

    申请日:1971-04-26

    Applicant: NAT RES DEV

    CPC classification number: H02P27/06

    Abstract: A method of changing the speed of a three-phase induction motor by deriving from the A.C. supply a modulating wave of submultiple frequency, deriving therefrom a corresponding rectangular wave, modulating each phase of the supply by three such modulating waves, with the same sequence or opposite sequence to the supply phases. Modulation of the supply is effected by gating thyristors from the modulating waves. By varying the modulation frequency, the motor speed is varied stepwise over a speed range.

    Abstract translation: 通过从交流电源提供三相感应电动机的速度的方法,通过三相这样的调制波调制每个相位的相应的矩形波,从而产生一个次多频的调制波 序列或与供应阶段相反的序列。 电源的调制通过从调制波中选通晶闸管来实现。 通过改变调制频率,电机速度在速度范围内逐步变化。

    Applicator for liquids
    47.
    发明授权
    Applicator for liquids 失效
    液体申请人

    公开(公告)号:US3701604A

    公开(公告)日:1972-10-31

    申请号:US3701604D

    申请日:1970-05-26

    Applicant: NAT RES DEV

    Inventor: HOLROYD JOHN

    CPC classification number: A41D19/0079

    Abstract: A DEVICE FOR THE MANUAL APPLICATION OF A LIQUID OVER A SURFACE COMPRISING A GLOVE HAVING ABSORBENT MATERIAL ON THE OUTSIDE AND FRONT THEREOF AND ADAPTED FOR CONNECTION TO PASSAGE MEANS FOR SUPPLYING A CONTROLLED FLOW OF LIQUID FROM A RESERVOIR TO THE ABSORBENT MATERIAL BENEATH THE

    OUTER SURFACE THEREOF, THE ABSORBENT MATERIAL BEING SUCH THAT THE LIQUID IS EXPRESIBLE THROUGH THE MATERIAL ON TO ITS OUTER SURFACE BY MANUAL PRESSURE.

    Hydrofoils for ships and like vessels
    48.
    发明授权
    Hydrofoils for ships and like vessels 失效
    用于船舶和类似船只的水力发电机

    公开(公告)号:US3680511A

    公开(公告)日:1972-08-01

    申请号:US3680511D

    申请日:1970-09-22

    Applicant: NAT RES DEV

    CPC classification number: B63H25/46 B63B39/06 B63H25/38

    Abstract: A control-surface device for use as a rudder or stabilizer fin. The devices described are of hydrofoil shape with jet discharge slots to either side of the device adjacent its distal portion. When used as a jet flap rudder, a jet of fluid is discharged from the advanced face of the rudder to assist steering. When used to provide a pair of stabilizer fins, jets of fluid are discharged from the leading faces of the fins as these are moved through the supporting fluid by a rolling motion of the ship.

    Abstract translation: 用作方向舵或稳定翼的控制面装置。 所描述的装置具有水翼形,其中喷射排放槽相邻于其远端部分的装置的任一侧。 当用作喷气襟翼方向舵时,流体喷射从舵的前进面排出以辅助转向。 当用于提供一对稳定器翅片时,流体的喷射流体通过船的滚动运动而被移动通过支撑流体从翅片的前表面排出。

    Thermal cutting apparatus
    49.
    发明授权
    Thermal cutting apparatus 失效
    热切割设备

    公开(公告)号:US3679863A

    公开(公告)日:1972-07-25

    申请号:US3679863D

    申请日:1969-11-10

    Applicant: NAT RES DEV

    CPC classification number: B23K26/146 B23K26/364

    Abstract: To cut paper, timber, fabric etc., with a laser beam, a jet of air (or other gas which is inert in the process) carrying an atomized stream of a liquid coolant is directed on to the moving region of the workpiece at which the laser beam is concentrated. This reduces the spread of charring or tar deposit from the cut along the surfaces of the workpiece.

    Abstract translation: 为了用激光束切割纸,木材,织物等,携带雾化的液体冷却剂流的空气射流(或在该过程中是惰性的其它气体)被引导到工件的移动区域, 激光束集中。 这可以减少炭化或焦油沉积物沿着工件表面的切割。

    Gripping
    50.
    发明授权
    Gripping 失效
    传送

    公开(公告)号:US3675962A

    公开(公告)日:1972-07-11

    申请号:US3675962D

    申请日:1970-06-04

    Applicant: NAT RES DEV

    Abstract: Use of an object-engaging device in the form of a deformable non-stretch container enclosing a sealed volume of fluent granular material is proposed for at least one of a plurality of force applying members in a gripping apparatus. The container is preferably of a double-walled construction with two flexible walls of which one is elastic, and the inner part is preferably sub-divided. Incorporation of a pressure transducer to indicate applied force conveniently involves the use of electrically conductive granular material to act as a variable resistor.

    Abstract translation: 对于夹持装置中的多个施力部件中的至少一个,提出了以包含密封体积的流动颗粒材料的可变形非拉伸容器的形式使用物体接合装置。 容器优选为具有两个柔性壁的双壁结构,其中一个是弹性的,并且内部部分优选地被细分。 结合压力传感器以指示施加的力方便地涉及使用导电颗粒材料作为可变电阻器。

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