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公开(公告)号：US3810113A
公开(公告)日：1974-05-07
申请号：US28127372
申请日：1972-08-17
Applicant: NAT RES DEV
Inventor： JORDAN J
CPC classification number: G06F17/15
Abstract: A computing apparatus comprises a set of counters corresponding to different stages of a shift register having a serial input. A binary signal is applied to this input, and the inputs of the counters are gated so that each counts only when the state of the corresponding stage satisfies a particular condition, for example coincidence with the current state of another binary signal. Once the count for any counter has reached a given value a signal is generated indicating for which of the counters this has occurred. A principal use is for identifying the time delay between two related noise signals.
Abstract translation: 计算装置包括与具有串行输入的移位寄存器的不同级相对应的一组计数器。 二进制信号被施加到该输入，并且计数器的输入被选通，使得每个计数器只有当相应级的状态满足特定条件时才计数，例如与另一个二进制信号的当前状态一致。 一旦任何计数器的计数达到给定值，就产生一个信号，指示哪个计数器已经发生。 主要用途是识别两个相关噪声信号之间的时间延迟。
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82.发明授权
公开(公告)号：US3810000A
公开(公告)日：1974-05-07
申请号：US22688572
申请日：1972-02-16
Applicant: NAT RES DEV
Inventor： ASPINALL A , SPRUCE D , LYNAM J
IPC: G01V3/04
CPC classification number: G01V3/04
Abstract: This invention concerns a meter for measuring polarisation induced in the earth and in particular for measuring transient voltages that follow the termination of direct current flow through the ground. In this device automatic normalisation of the data is achieved by correllating the voltage source producing the transient voltages with the potential measured across measurement electrodes in such a manner that the voltage source and measurement circuits are not otherwise electrically linked.
Abstract translation: 本发明涉及一种用于测量在地球中感应的极化的仪表，特别是用于测量直流电流流过地面的瞬态电压。 在该装置中，数据的自动归一化是通过校正产生瞬态电压的电压源与测量电极之间测量的电位，使得电压源和测量电路不以其它方式电连接。
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公开(公告)号：US3797527A
公开(公告)日：1974-03-19
申请号：US3797527D
申请日：1972-02-07
Applicant: NAT RES DEV
Inventor： BAIN D
CPC classification number: B63H25/46 , Y10T137/2218 , Y10T137/2224
Abstract: A digital rapid response lateral thrust unit in which the deliberately unstable nature of the design is overcome by bleeding off relatively large proportions of the incoming liquid flow for reintroduction as control jets. These jets are effective to divert the liquid flow to one or other of two tapering outlet ducts, the split flow zero thrust condition being achieved by cutting off the supply of control fluid and connecting together the discharge slots for the control jets. Use of the unit as a simple flow diverter in a liquid transfer assembly is also described.
Abstract translation: 一种数字快速反应横向推力单元，其中设计的故意不稳定的性质通过将相当大比例的进入液体流引流作为控制喷射而被重新引入来克服。 这些喷射器有效地将液体流转移到两个锥形出口管道中的一个或另一个，通过切断控制流体的供应并将控制喷嘴的排放槽连接在一起来实现分流流量零推力条件。 还描述了在液体转移组件中使用该单元作为简单的流动分流器。
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公开(公告)号：US3794870A
公开(公告)日：1974-02-26
申请号：US3794870D
申请日：1972-07-17
Applicant: NAT RES DEV
Inventor： BROADWAY A , FONG W , RAWCLIFFE G
CPC classification number: H02K3/28
Abstract: A three-phase, alternating current, speed-changing electric motor, or generator, suitable for six-terminal, series/parallel switching and with pole-changing effected by pole-amplitide modulation, having a composite three-phase stator winding comprising two component windings with corresponding phasewinding parts connected in the same phase of the composite winding and spaced apart from each other around the winding periphery. Most commonly the spacing is uniform.
Abstract translation: 适用于六端子，串联/并联开关和由极点放大器调制实现的极点变化的三相，交流，变速电动机或发电机，具有复合三相定子绕组，其包括两个部件 绕组，其中相应的相绕组部分连接在复合绕组的相同相中并且围绕绕组周边彼此间隔开。 最通常的间距是均匀的。
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公开(公告)号：US3773899A
公开(公告)日：1973-11-20
申请号：US3773899D
申请日：1971-06-14
Applicant: NAT RES DEV
Inventor： LEWIS T
CPC classification number: C30B11/12 , C30B25/005 , C30B29/36
Abstract: A PROCESS FOR THE PRODUCTION OF SILICON CARBIDE WHISKERS COMPRISING MAINTAINING A SILICON-CONTAINING VAPOUR AND A CARBON-CONTAINING VAPOUR AT A TEMPERATURE OF AT LEAST 1,100*C. IN A REACTION ZONE IN THE PRESENCE OF A SUBSTRATE WHEREBY SILICON CARBIDE WHISKERS ARE DEPOSITED UPON THE SUBSTRATE, AND IS CHARACTERISED BY PROVIDING A SUPER-SATURATED CONCENTRATION OF AN IRON-CONTAINING VAPOUR IN THE REACTION ZONE SO THAT WHISKER GROWTH MAY CONTINUE EVEN WHEN THE SUBSTRATE IS SUBSTANTIALLY ENTIRELY COATED WITH WHISKERS GIVING CONSEQUENT INCREASE IN YIELD AND PROCESS EFFICIENCY.
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Patent Agency Ranking86.发明授权
公开(公告)号：US3767611A
公开(公告)日：1973-10-23
申请号：US3767611D
申请日：1972-02-10
Applicant: NAT RES DEV
Inventor： PARKER B
CPC classification number: C08J5/24 , C08J2365/00 , Y10T428/2918 , Y10T442/2984
Abstract: A PROCESS OF PRODUCTING A SOLUBLE FUSIBLE PRE-POLYMER IS DESCRIBED IN WHICH AT LEAST ONE OF TOLUENE AND XYLENE IS REACTED WITH P-XYLYLENEGLYCOL DIMETHYL ETHER IN THE PRESENCE OF A MILD FRIEDEL-CRAFTS TYPE CATALYST SO THAT THE TOLUENE AND/OR XYLENE REACT WITH THE P-XYLYLENEGLYCOL DIMETHYL ETHER WITH THE ELIMINATION OF METHANOL, THE REACTION BEING ALLOWED TO PROCEED ALMOST TO THE GELATION POINT. THE PRE-POLYMERS PRODUCED ARE PARTICULARLY SUITABLE FOR MAKING CARBON FIBRE REINFORCED PLASTICS MATERIALS.
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公开(公告)号：US3764009A
公开(公告)日：1973-10-09
申请号：US3764009D
申请日：1973-01-31
Applicant: NAT RES DEV
Inventor： WATT J
IPC: G01N33/487 , B03D3/02
CPC classification number: G01N33/487
Abstract: In the fractionation of liquid proteins, an increased rate of producton without denaturing is obtained by use of apparatus including (A) A HEAT-EXCHANGER FOR THROUGHFLOW OF A COOLING FLUID WHEREBY THE HEAT-EXCHANGER PRESENTS COOLING SURFACING FOR CONTACT BY A THROUGHFLOWING LIQUID; AND (B) A PAIR OF NOZZLES FOR DISCHARGING RESPECTIVELY JETS OF PROTEINACEOUS SOLUTION AND LIQUID PRECIPITANT, THE NOZZLES BEING SO DISPOSED THAT THE JET LIQUIDS CONVERGINGLY MERGE TO FORM A COMPOSITE STREAM WHICH IMPINGES ON THE COOLING SURFACING OF THE HEAT EXCHANGER AND INSTANTLY ON IMPINGEMENT BECOMES A REACTION MIXTURE CONTAINING THE PRECIPITATED PROTEIN FRACTION WHICH REACTION MIXTURE THEN FLOWS OVER THE COOLING SURFACING AND FROM THE HEAT EXCHANGER.
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公开(公告)号：US3763983A
公开(公告)日：1973-10-09
申请号：US3763983D
申请日：1972-03-21
Applicant: NAT RES DEV
Inventor： JAMES A
CPC classification number: G07F17/145 , G07F11/66 , Y10T83/2209 , Y10T83/4443 , Y10T83/4544 , Y10T83/461 , Y10T83/5833
Abstract: A ticket system for public transport vehicles based on the use of tickets which require to be of a predetermined length when presented for checking as the passenger leaves the vehicle, this length being determined on issue of the ticket by mechanism which allows for the issue point in relation to the complete journey and also in accordance with the fare paid: thus all tickets checked at any particular point should be of the same length irrespective of their several issue points, and any short ticket indicates short payment.
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公开(公告)号：US3762371A
公开(公告)日：1973-10-02
申请号：US3762371D
申请日：1972-06-23
Applicant: NAT RES DEV
Inventor： JOSHUA CREER QUAYLE , GREATRIX G
CPC classification number: A01J7/00 , A01J5/0133 , A01J5/041
Abstract: Apparatus and methods for comparing the conductivities of liquid streams by induction are described. Such apparatus and methods have particular application in detecting mastitis in milk animals where differences in the conductivities of milk streams from different teats of the same animal may indicate the presence of mastitis. The apparatus described is specially suited for use with milking machinery in that it is economical to manufacture and is easy to keep clean. In one embodiment four coils are provided one for each of four conductivity measuring cells in a hemispherical chamber in the claw piece of milking apparatus.
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公开(公告)号：US3757394A
公开(公告)日：1973-09-11
申请号：US3757394D
申请日：1970-12-09
Applicant: NAT RES DEV
Inventor： TURNER D
CPC classification number: F16L33/08 , Y10T24/1427 , Y10T24/1445
Abstract: A band clip includes a rotatably mounted screw which meshes wormwise with a threaded portion of the band. The screw is provided with a frusto-conical portion and the mounting for the screw presents an inclined surface which co-operates with the frusto-conical portion in such a way that, when the band is in an operative condition, co-action between the frusto-conical portion and the inclined surface biases the screw into engagement with the threaded portion of the band.
Abstract translation: 带夹包括可旋转地安装的螺钉，其与带的螺纹部分蠕动地啮合。 螺钉设置有截头圆锥形部分，并且用于螺钉的安装件呈现出与截头圆锥形部分配合的倾斜表面，使得当带处于操作状态时， 截头圆锥形部分和倾斜表面将螺钉偏压成与带的螺纹部分接合。
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