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公开(公告)号：US3712120A
公开(公告)日：1973-01-23
申请号：US3712120D
申请日：1971-12-28
Applicant: NASA
Inventor： FLETCHER J , SIMS C , TAYLOR R
CPC classification number: G01M7/06
Abstract: The apparatus includes a shaker platform fixture having a mounting face upon which is supported a movable specimen mounting fixture. The specimen mounting fixture is pivotally movable relative to an axis perpendicular to the plane of the mounting face of the platform fixture and holds a specimen to be vibrated along its orthogonal axes. The mounting face of the platform fixture is provided with the necessary angle of incline relative to the plane of vibration, and the specimen mounting fixture is provided with mounting faces having the necessary angle of incline relative to the mounting faces of the platform fixture, such that turning of the specimen mounting fixture about its pivotal axis will expose the mounted specimen to vibration along each of its major orthogonal axes. A shaker platform is provided of a configuration having a mounting face of such angular incline to the plane of vibration so that the specimen to be vibrated may be attached directly to this face, and, in turning of the specimen along an axis perpendicular to said mounting face, subject the same to vibration along a number of other orthogonal axes.
Abstract translation: 该装置包括具有安装面的摇动平台固定装置，在该安装面上支撑有可移动的试样安装夹具。 样品安装固定件可相对于垂直于平台固定装置的安装面的平面的轴线枢转运动，并保持沿其正交轴线振动的试样。 平台固定装置的安装面相对于振动平面设置有必要的倾斜角度，并且试样安装固定件具有相对于平台固定装置的安装面具有必要的倾斜角的安装面，使得 样品安装固定件围绕其枢转轴线的转动将使安装的样品沿其每个主要正交轴线发生振动。 振动台平台设置有具有这样的角度倾斜的安装面到振动平面的构造，使得要振动的样本可以直接附接到该面上，并且在垂直于所述安装件的轴线上转动样本 面对，沿许多其他正交轴振动。
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公开(公告)号：US3855873A
公开(公告)日：1974-12-24
申请号：US41207973
申请日：1973-11-02
Applicant: NASA
Inventor： KENNEY R , FLETCHER J , SUMMERS R
CPC classification number: F16H27/06 , Y10T74/1441 , Y10T74/19879
Abstract: An improved Geneva mechanism characterized by a driven starwheel having a segmented cam-follower surface and a star-wheel driver including a restraining cam having a segmented cam surface for engaging the cam-follower surface of the star-wheel and antifriction rollers pinned to the restraining cam for engaging the cam-follower surface of the star-wheel.
Abstract translation: 一种改进的日内瓦机构，其特征在于具有分段凸轮从动表面的从动星形轮和包括具有分段凸轮表面的限制凸轮的星轮驱动器，星形轮驱动器具有用于接合星轮和抗摩擦辊的凸轮从动表面 固定到用于接合星轮的凸轮从动表面的限制凸轮。
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公开(公告)号：US3854113A
公开(公告)日：1974-12-10
申请号：US34795273
申请日：1973-04-04
Applicant: NASA
Inventor： FLETCHER J , SMITH H
CPC classification number: H01C1/12
Abstract: A variable resistance device which includes a cylindrical housing having elongated resistance wires fixed thereto. A movable arm having a supporting block carried on the outer end thereof is rotatably carried by the cylindrical housing. An arcuate steel spring member is pivotally supported by the movable arm. A leather wiper member is carried adjacent one end of the spring steel member, and an electrically conductive surface is carried adjacent the other end. The supporting block maintains the spring steel member in compression so that a constant pressure is applied to the conductive end of the spring steel member and the leather wiper. The leather wiper is saturated with a lubricating oil for maintaining the resistance wire clean as the movable arm is manipulated.
Abstract translation: 一种可变电阻装置，其包括具有固定到其上的细长电阻丝线的圆柱形壳体。 具有承载在其外端上的支撑块的可动臂由圆柱形壳体可转动地支承。 弧形钢弹簧构件由可动臂可枢转地支撑。 皮革擦拭器构件靠近弹簧钢构件的一端运送，并且导电表面靠近另一端承载。 支撑块保持弹簧钢构件的压缩，使得恒定的压力施加到弹簧钢构件和皮革擦拭器的导电端。 皮革刮水器用润滑油饱和，以便在可操作臂被操纵时保持电阻丝清洁。
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公开(公告)号：US3847652A
公开(公告)日：1974-11-12
申请号：US31338972
申请日：1972-12-08
Applicant: NASA
Inventor： FLETCHER J , HOLLAHAN J , WYDEVEN T
IPC: C08F2/00 , B01D67/00 , B01J12/00 , B01J19/08 , C08F2/46 , C08F2/52 , C08F26/02 , C08F126/06 , C08J7/00 , H05H1/24 , C08F1/22 , C08F3/00 , C08F3/34
CPC classification number: B01D69/127 , B01J12/002 , B01J19/08 , C08F2/52
Abstract: Allyl amine and chemically related compounds are polymerized as thin films in the presence of a plasma discharge. The monomer compound can be polymerized by itself or in the presence of an additive gas to promote polymerization and act as a carrier. The polymerized films thus produced show outstanding advantages when used as reverse osmosis membranes.
Abstract translation: 在存在等离子体放电的情况下，烯丙基胺和化学相关化合物作为薄膜聚合。 单体化合物可以单独或在添加气体的存在下聚合以促进聚合并用作载体。 如此制备的聚合膜当用作反渗透膜时显示出显着的优点。
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公开(公告)号：US3832764A
公开(公告)日：1974-09-03
申请号：US37087273
申请日：1973-06-18
Applicant: NASA
Inventor： FLETCHER J , MARZEK R , READ W
CPC classification number: H05K13/0007 , Y10T29/53283 , Y10T29/53835 , Y10T29/539
Abstract: A tool for use in lifting a pin-supported, electronic package mounted in juxtaposition with the surface of an electronic circuit board. The tool is configured to be received beneath a pin-supported package and is characterized by a manually operable linkage, including an elongated body within which an elongated, rigid link is supported for axial reciprocation and a pivotal link pinned to the body and supported for oscillation induced in response to axial motion imparted to the rigid link. A lifting plate is pivotally coupled to the distal end of the pivotal link so that oscillatory motion imparted to the pivotal link serves to move the plate vertically for elevating the plate into lifting engagement with the electronic package positioned thereabove.
Abstract translation: 用于提升与电子电路板表面并置安装的引脚支撑的电子封装的工具。 该工具被配置为被接收在销支撑的包装下方，并且其特征在于可手动操作的联动装置，其包括细长主体，细长的刚性连杆支撑在该细长主体中用于轴向往复运动，以及枢转连杆固定到主体并被支撑用于振荡 响应于施加到刚性连杆的轴向运动而引起的。 提升板枢转地联接到枢转连杆的远端，使得施加到枢转连杆的摆动运动用于垂直移动板，以将板升高成与位于其上的电子包的升降接合。
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Patent Agency Ranking
公开(公告)号：US3825760A
公开(公告)日：1974-07-23
申请号：US34330873
申请日：1973-03-21
Applicant: NASA
Inventor： FLETCHER J , WALKER D , CORNISH S , TURNAGE J , LINFORD R
CPC classification number: G01T7/125
Abstract: A detector of ultraviolet radiation for operation in a space vehicle which orbits through high-intensity radiation areas. Two essentially identical ultraviolet sensor tubes are mounted within a shield which limits, to acceptable levels, the amount of proton radiation reaching the sensor tubes. The shield has an opening which permits ultraviolet radiation to reach one of the sensor tubes, hereafter referred to the sensing tube. However, the shield keeps ultraviolet radiation from reaching the other sensor tube, hereafter referred to as the reference tube. Both sensor tubes receive approximately the same amount of proton radiation, but the sensing tube also is able to receive ultraviolet radiation. The circuitry of the detector subtracts the output of the reference tube from the output of the sensing tube. Therefore, any portion of the output of the sensing tube which is due to proton radiation is offset by the output of the reference tube. Consequently, the output of the circuitry of the detector is proportional to the amount of ultraviolet radiation reaching the sensing tube. A delay circuit in the detector prevents false alarms by keeping statistical variations in the proton radiation sensed by the two sensor tubes from developing an output signal.
Abstract translation: 用于在高强度辐射区域上运行的太空车辆中的紫外线辐射检测器。 两个基本上相同的紫外线传感器管安装在屏蔽内，限制达到传感器管的质子辐射量的可接受水平。 屏蔽件具有允许紫外线辐射到达传感器管之一的开口，此后称为传感管。 然而，屏蔽层可以防止紫外线辐射到达另一传感器管，以下称为参考管。 两个传感器管都接收到大致相同数量的质子辐射，但感测管也能够接收紫外线辐射。 检测器的电路从传感管的输出中减去参考管的输出。 因此，由于质子辐射导致的感测管的输出的任何部分被参考管的输出偏移。 因此，检测器的电路的输出与到达传感管的紫外线辐射量成比例。 检测器中的延迟电路通过保持由两个传感器管感测到的质子辐射的统计变化而不产生输出信号来防止误报警。
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87.发明授权
公开(公告)号：US3817082A
公开(公告)日：1974-06-18
申请号：US31504872
申请日：1972-12-14
Applicant: NASA
Inventor： FLETCHER J , BATE E , JONES R , PRICE P , VEIKINS O
IPC: G01F25/00
CPC classification number: G01F25/0007
Abstract: An apparatus for establishing a flow of fluid mass, such as a gas, having a known velocity, characterized by an hermetically sealed chamber conforming to a closed-loop configuration and including a throat and a plurality of axially displaceable pistons for sweeping through the throat a stream of gas including a core and an unsheared boundary layer. Within the throat there is provided a cylindrical coring body concentrically related to the throat for receiving the core, and a chamber surrounding the cylindrical body for drawing off the boundary layer, whereby the velocity of the core is liberated from the effects of the velocity of the boundary layer.
Abstract translation: 一种用于建立具有已知速度的诸如气体的流体质量流的装置，其特征在于一个符合闭环构造的气密密封室，其包括喉部和多个可轴向移动的活塞，用于扫过喉部 包括核心和未加工的边界层的气体流。 在喉部内设置有与用于接收芯部的喉部同心相关的圆柱形取芯体，以及围绕圆柱体的腔室，用于从边界层中抽出，由此芯体的速度从 边界层。
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公开(公告)号：US3815969A
公开(公告)日：1974-06-11
申请号：US36564473
申请日：1973-05-31
Applicant: NASA
Inventor： FLETCHER J , COWAN J
CPC classification number: G03H1/0256 , G03H1/04 , G03H2001/0413 , G03H2260/16
Abstract: A holographic recording medium employing a substrate having a diffraction grating composed of a plurality of spaced line ridges on a surface thereof together with a first layer consisting of a metal having a plasma wavelength shorter than that of a selected light source and a second layer, or coating, on top of the first layer, consisting of a thin film of photo-sensitive emulsion.
Abstract translation: 一种全息记录介质，其采用具有由其表面上的多个间隔的线脊组成的衍射光栅的基板以及由等离子体波长比选择的光源和第二层的等离子体波长短的金属构成的第一层，或 涂覆在第一层的顶部，由感光乳剂的薄膜组成。
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公开(公告)号：US3814645A
公开(公告)日：1974-06-04
申请号：US25175272
申请日：1972-05-09
Applicant: NASA
Inventor： FLETCHER J , GELB L , HELBERT W , ENIE R , MULLIKEN R
CPC classification number: B29C73/00 , Y10T156/1028 , Y10T156/103 , Y10T428/31511
Abstract: DAMAGE FIBERGLASS STRUCTURES ARE REPAIRED BY SUBSTANTIALLY FILLING THE IRREGULAR SURFACED DAMAGED AREA WITH A LIQUID, SELF-CURING RESIN, PREFERABLY AN EPOXY RESIN MIXED WITH CHOPED FIBERGLASS, AND THEN APPLYING TO THE RESIN SURFACE THE FIRST OF SEVERAL WOVEN FIBERGLASS SWATCHES WHICH HAS STITCHING IN A ZIG-ZAG PATTERN PARALLEL TO EACH OF ITS EDGES AND A FRINGE OF WARP AND FILL GLASS FIBERS ABOUT THE EDGES OUTWARD OF THE STITCHING, COATING THE APPLIED SWATCH WITH THE LIQUID, SELF-CURING RESIN, AND APPLYING ADDITIONAL SWATCHES IN A SIMILAR MANNER, EACH OF A LARGER DIMENSION THAN THE PRECEDING SWATCH IN A MANNER TO OVERLAP A PORTION OF THE FRINGE OF ADJACENT, SWATCHES, UNTIL THE FIBERGLASS SWATCH AND RESIN COMPOSITE THAT IS FORMED COVERS THE AREA TO BE REPAIRED, AND ALLOWING THE RESIN TO CURE. THE METHOD IS ESPECIALLY APPLICABLE TO REPAIR OF FIBERGLASS ROCKET ENGINE CASINGS AND IS PARTICULARLY ADVANTAGEOUS SINCE IT TESTORES THE REPAIRED FIBERGLASS STRUCTURE TO SUBSTANTIALLY ITS ORIGINAL STRENGTH WITHOUT ANY SIGNIFICANT CHANGES IN THE GEOMETRY OR MASS OF THE STRUCTURE.
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公开(公告)号：US3809800A
公开(公告)日：1974-05-07
申请号：US35440773
申请日：1973-04-25
Applicant: NASA
Inventor： DRISCOLL K , FLETCHER J , RUMBLE C
CPC classification number: H01B7/06 , H01B5/02 , H02G11/02 , Y10S174/08
Abstract: An electrical wire along whose length loops are formed at intervals and retained in a plastic capsule that allows unfolding of the loop when tension is exerted on the opposite ends of the wire. The capsule is formed by encompassing each loop with a sleeve of heat shrinkable synthetic plastic material which overlaps the loop and heat shrinking the overlapping portions. Thus, a length of electrical wire is formed which stores extra lengths of wire in the quantity needed to match the expected stretching of materials or elements such as ropes, cords and the like of high elongation to which the electrical wire may be attached.
Abstract translation: 电线沿其长度环形成间隔并且保持在塑料胶囊中，当塑料膜上的张力施加在电线的相对端上时，允许环路展开。 胶囊通过将每个环包围与套筒重叠的热收缩合成塑料材料并热收缩重叠部分而形成。
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