公开(公告)号：US3654480A

公开(公告)日：1972-04-04

申请号：US3654480D

申请日：1970-10-08

Applicant: NAT RES DEV

Inventor： STEPHENSON JOHN MICHAEL

IPC: G01P3/48 ,  G01P3/486 ,  G01P15/16 ,  G01D5/36

CPC classification number: G01P15/165 ,  G01P3/4802 ,  G01P3/486

Abstract: A tachogenerator for measuring the speed of a rotating shaft is described. The tachogenerator has two discs each with spaced peripheral slots; one disc is rotated at a constant speed and the other at the speed to be measured. A light beam is projected through the slots to a light sensitive device coupled to an electrical filter and a signal indicative of speed is obtained from the filter. Electrical noise in the signal from the light sensitive device is reduced by the filter. A further reduction in noise is obtained by using one or more pairs of light beams, with the beams diametrically opposed with respect to the discs. A light sensitive device is provided for each beam and these devices are coupled to the filter input. Instead the devices may be coupled to means for combining the pulse trains generated, to provide the output signal.

Abstract translation: 描述了用于测量旋转轴的速度的测速发电机。 测速发电机具有两个盘，每个盘具有间隔开的外围槽; 一个盘以恒定速度旋转，另一个以待测速度旋转。 光束通过狭槽投射到耦合到电过滤器的光敏设备，并且从过滤器获得指示速度的信号。 来自光敏装置的信号中的电噪声被滤波器减小。 通过使用一对或多对光束获得噪声的进一步降低，其中光束相对于盘径向相对。 为每个光束提供光敏装置，并且这些装置耦合到滤光器输入端。 相反，器件可以耦合到用于组合产生的脉冲串的装置，以提供输出信号。

公开(公告)号：US3652850A

公开(公告)日：1972-03-28

申请号：US3652850D

申请日：1970-03-06

Applicant: NAT RES DEV

Inventor： BRIGGS RONALD

IPC: G01J1/16 ,  G01N21/05 ,  G01N21/53 ,  G01N21/26

CPC classification number: G01J1/16 ,  G01N21/05 ,  G01N21/53 ,  G01N21/534 ,  G01N2201/066

Abstract: Method and apparatus for determining the optical density for radiation within a predetermined range of wavelengths in which a first signal is produced related to the attenuation of radiation over a known path length in the fluid, a second signal is produced related to the attenuation of the radiation over the same path length by solid matter suspended in the fluid and the second signal is utilized to correct the first signal for the presence of the suspended solid matter in the fluid.

Abstract translation: 用于确定在其中产生第一信号的预定波长范围内的辐射的光密度的方法和装置涉及在流体中已知路径长度上的辐射的衰减，产生与辐射的衰减相关的第二信号 通过悬浮在流体中的固体物质在相同的路径长度上，并且使用第二信号来校正第一信号以确定流体中悬浮固体物质的存在。

公开(公告)号：US3651521A

公开(公告)日：1972-03-28

申请号：US3651521D

申请日：1970-02-05

Applicant: NAT RES DEV

Inventor： DEVAS MICHAEL BERTRAND

IPC: A61F2/30 ,  A61F2/38 ,  A61F2/42 ,  A61F1/24

CPC classification number: A61F2/4241 ,  A61F2/3804 ,  A61F2002/30626 ,  A61F2002/30632 ,  Y10T403/32631

Abstract: A prosthetic device comprising mutually engageable male and female components to afford pivotal rotation in a plane, the female component including a socket member having a concave bearing surface with a cross section in said plane substantially in the form of a first circular segment subtending an angle greater than 180*, and a first shaft projecting from the rear of said socket member, and the male component including a head member having a convex bearing surface with a cross section in said plane substantially in the form of a second circular segment of equal radius to said first segment, subtending an angle significantly greater than said first segment, and relieved towards one end over a segmental angle of at least similar order to that by which said first segment exceeds 180*, and a second shaft projecting from the rear of said head member.

Abstract translation: 一种假体装置，其包括相互接合的阳部件和阴部件，以在平面中提​​供枢转旋转，所述阴部件包括插座部件，所述插座部件具有凹入的支承表面，所述凹入的支承表面在所述平面中具有大致呈第一圆形部分的形式， 180°以及从所述插座构件的后部突出的第一轴，并且所述阳部件包括头部构件，所述头构件具有凸起的支承表面，所述凸起的支承表面在所述平面中具有大致为第二圆形段的形式， 所述第一段对着明显大于所述第一段的角度，并且朝向与所述第一段超过180°的至少相似顺序的节段角度的一端释放，并且从所述头部的后部突出的第二轴 会员。

公开(公告)号：US3649531A

公开(公告)日：1972-03-14

申请号：US3649531D

申请日：1970-04-15

Applicant: NAT RES DEV

Inventor： BROWN BASIL REGINALD ,  WOOD LESLIE BALLENTYNE

IPC: C02F11/12 ,  C10L1/14 ,  C10L1/22 ,  C10L1/26 ,  C02C1/14

CPC classification number: C02F11/12 ,  C10L1/14 ,  C10L1/2222 ,  C10L1/224 ,  C10L1/2658

Abstract: THE DEWATERING TIME OF A SLUDGE OBTAINED BY ANAEROBIC DIGESTION OF A PRIMARY SEWAGE SLUDGE IS REDUCED SUBSTANTIALLY BY SUBJECTING THE DIGESTED SLUDGE TO AERATION WITH AIR OR OTHER SUITABLE OXYGEN CONTAINING GAS. TYPICALLY, AERATION IS CARRIED OUT FOR AT LEAST 4 HOURS, THE SLUDGE IS ALLOWED TO SETTLE, AND THEN DEWATERED WITHIN TWO DAYS. AERATION MAY BE CARRIED OUT BY MEANS OF DIFFUSED AIR OR, PREFERABLY, BY MECHANICAL MEANS USING A SURFACE AERATOR.

公开(公告)号：US3647824A

公开(公告)日：1972-03-07

申请号：US3647824D

申请日：1969-09-17

Applicant: NAT RES DEV

Inventor： ELLIOTT MICHAEL

IPC: C07D5/28 ,  C07D5/16

CPC classification number: C07D307/45

Abstract: INSECTICIDAL COMPOSITIONS ARE PRODUCED WHEREIN THE ACTIVE INGREDIENT IS AT LEAST ONE COMPOUND OF THE FORMULA

R1,R2,(Y-CH2-),(Z-(1,1-DI(CH3-)CYCLOPROP-2,3-YLENE)-

COO-CH2-)-2,3-DIHYDROFURAN

IN WHICH Z REPRESENTS AN ARYL, ALKENYL OR CARBOALKOXYALKENYL GROUP, Y REPRESENTS A HYDROGEN ATOM OR AN ALKYL, ALKENYL OR ALKADIENYL GROUP OR AN ARYL GROUP OR A HETEROCYCLIC GROUP WHICH THEMSELVES MAY BE SUBSTITUTED BY ALKYL, ALKENYL, ALKADIENYL OR ALKOXY GROUPS OR HALOGEN ATOMS, AND R1 AND R2 WHICH MAY BE THE SAME OR DIFFEENT, EACH REPRESENT A HYDROGEN ATOM OR AN ALKYL, ALKENYL OR ALKADIENYL GROUP. FURROIC ACIDS AND FURONIC ACID LOWER ALKYL ESTERS ARE ALSO DISCLOSED.

公开(公告)号：US3646929A

公开(公告)日：1972-03-07

申请号：US3646929D

申请日：1969-12-09

Applicant: NAT RES DEV

Inventor： BONNAR JOHN

IPC: A61F2/00 ,  A61B19/00

CPC classification number: A61F2/005 ,  Y10S128/25

Abstract: A female incontinence device comprising a support adapted for insertion into and stable retention in the vagina, a flexible diaphragm engaged at its periphery with the support, and remotely operable means carried by the support to elevate the diaphragm relative to the support and thereby upwardly displace both the urethra and bladder neck, while slightly elongating the urethra.

Abstract translation: 一种女性失禁装置，包括适于插入并稳定地保留在阴道中的支撑件，与其支撑件在其周边处接合的柔性隔膜以及由支撑件承载的可远程操作的装置，以相对于支撑件升高隔膜，从而向上移动两者 尿道和膀胱颈部，同时轻微延长尿道。

公开(公告)号：US3645968A

公开(公告)日：1972-02-29

申请号：US3278270

申请日：1970-04-28

Applicant: NAT RES DEV

Inventor： PHILLIPS LESLIE NATHAN ,  THOMAS DAVID KENNETH

IPC: C08K3/16 ,  C08K5/00 ,  C08F45/62

CPC classification number: C08K3/16 ,  C08K5/0091 ,  C08L83/04

Abstract: SILICONE ELASTOMERS ARE DESCRIBED WHICH CONTAIN A HYDROLYTIC DEGARDATIN RESISTANT ADDITIVE WHICH IS AN ADDUCT OR FERRIC CHLORIDE AND AN ORGANIC COMPOUND HAVING THREE AROMTAIC NUCLEI ATTACHED TO ONE ATOM. PREFERRED ADDUCTS ARE THOSE OF FERRIC CHLORIDE WITH TRIPHENYLAMINE OR WITH TRIPHENYL CARBINOL AND A CONVENIENT METHOD OF PREPARING THE FERRIC CHLORIDE/TRIPHENYLAMINE ADDUCT IN SOLUTION IS DESCRIBED. THE ADDUCTS OF THE PRESENT INVENTION INTERFERE WITH THE CROSS-LINKING REACTION OF MOST CURING AGENTS BUT A CLASS OF CURING AGENTS, OF WHICH 2,5-DIMETHYL-2,5-DITERTIARYBUTYL PEROXYHEXANE IS THE BEST MEMBER, WHICH ARE NOT INTERFERED WITH ARE DISCLOSED.

公开(公告)号：US3641345A

公开(公告)日：1972-02-08

申请号：US3641345D

申请日：1970-03-05

Applicant: NAT RES DEV

Inventor： COACKLEY ROBERT ,  REYNOLDS MICHAEL LESLIE ,  RODGERS CLIVE DOUGLAS

IPC: G01J5/00 ,  G01J5/62 ,  G01J5/06

CPC classification number: G01J5/62 ,  G01J5/0014

Abstract: A radiometer apparatus suitable for use on a supersonic aircraft for clear-air turbulence detection includes means for operating at four selected wavelengths within an atmospheric absorption band, for example the 15 Mu band of carbon dioxide. At any particular height of the aircraft each of a set of filters used to select the four selected wavelengths has a weighting function which depends on the effective absorption coefficient of the atmosphere at that wavelength and each indicates which part of the atmosphere ahead provides a significant contribution to the radiation measured by the apparatus. At longer wavelengths the atmosphere is opaque and the radiometer apparatus receives radiation from immediately in front of the aircraft. By generating suitable functions from the outputs of radiation passed by two or more of the filters it is possible to detect turbulence of the type looked for.

Abstract translation: 适用于超音速飞行器用于清澈湍流检测的辐射计装置包括用于在大气吸收带内例如15微米二氧化碳带内的四个选定波长下操作的装置。 在飞机的任何特定高度处，用于选择四个所选波长的一组滤波器中的每一个具有取决于该波长处的大气的有效吸收系数的加权函数，并且每个指示前面的大气哪一部分提供显着贡献 对于由该装置测量的辐射。 在更长的波长下，大气是不透明的，辐射计装置从飞机前面立即接收辐射。 通过由两个或更多个过滤器通过的辐射的输出产生适当的功能，可以检测所寻找类型的湍流。

公开(公告)号：US3640625A

公开(公告)日：1972-02-08

申请号：US3640625D

申请日：1968-06-07

Applicant: NAT RES DEV

Inventor： IBBETT ROLAND NORMAN ,  ASPINALL DAVID

IPC: G01J3/28 ,  G01J3/00 ,  G01J3/02

CPC classification number: G01J3/2846

Abstract: A multiplex spectrometer has its spectral line information encoded by transmitting the line through rows of apertures presented in sequence. The apertures occur in a pattern derived from a matrix of binary numbers. Decoding is achieved by adding or subtracting the output in a store containing addresses equal to the number of columns in the matrix.

Abstract translation: 复用光谱仪具有通过按顺序呈现的孔的数列传输线来编码其谱线信息。 孔以从二进制数矩阵得到的图案发生。 通过在包含等于矩阵中的列数的地址的存储中添加或减去输出来实现解码。

公开(公告)号：US3639741A

公开(公告)日：1972-02-01

申请号：US3639741D

申请日：1969-07-25

Applicant: NAT RES DEV

Inventor： CARRICK ALAN

IPC: G06F17/00 ,  H01J49/02 ,  H03K5/1532 ,  H03K13/02

CPC classification number: H03K5/1532 ,  H01J49/022

Abstract: A hybrid analogue-digital analyzer for the online digitization of electrically recorded mass spectra. The device, which does not incorporate a digital computer, accurately selects peak maxima to provide triggering pulses for timing circuitry, and uses directly controlled buffer storage to reduce the effective rate of data acquisition to that of the average speed of the associated output channel. The analyzer is primarily intended to provide records of complete high resolution mass spectra suitable for off-line computer processing. For real time production of reduced and annotated spectra the analyzer may be used as an active interface directly coupled to a computer.

Abstract translation: 用于电子记录质谱的在线数字化的混合模拟数字分析仪。 不包含数字计算机的设备精确地选择峰值最大值以提供定时电路的触发脉冲，并且使用直接受控的缓冲存储器将数据采集的有效速率降低到相关输出通道的平均速度。 分析仪主要用于提供适合离线计算机处理的完整高分辨率质谱的记录。 为了实时缩小和注释光谱的生产，分析仪可以用作直接耦合到计算机的有源接口。