公开(公告)号：US4320820A

公开(公告)日：1982-03-23

申请号：US172689

申请日：1980-07-28

申请人： Charles F. Elbert

发明人： Charles F. Elbert

IPC分类号： B60M1/18

CPC分类号： B60M1/18

摘要： An improved trolley system section insulator having a main support insulator, end support insulators attached to trolley wires and an intermediate runner member. The runner member is formed of two spaced conductive portions which are attached to the main support insulator by studs extending upwardly through the main support insulator, the studs being electrically connected together at their uppermost ends, thereby forming 90.degree. changes in direction of the current paths which exist when arcs are formed. The path changes produce magnetic fields which tend to blow the arcs downwardly, protecting the insulator portions from arc damage.

摘要翻译： 一种改进的推车系统部分绝缘体，其具有主支撑绝缘体，附接到电车线的端部支撑绝缘体和中间流道构件。 流道构件由两个间隔开的导电部分形成，该导电部分通过向上延伸穿过主支撑绝缘体的螺柱附接到主支撑绝缘体，螺柱在其最上端电连接在一起，从而在电流路径的方向上形成90度变化 当弧形成时存在。 路径变化产生的磁场往往会向下吹弧，保护绝缘体部分免受电弧损伤。

公开(公告)号：US4193660A

公开(公告)日：1980-03-18

申请号：US969730

申请日：1978-12-15

申请人： Frank C. Jaconette

发明人： Frank C. Jaconette

IPC分类号： H01R13/11 ,  H01R13/115 ,  H01R13/64 ,  H01R13/12

CPC分类号： H01R13/112 ,  H01R13/64

摘要： A female contact has at least one contact arm with an outwardly diverging tip end for guiding the tip of a male blade inserted into the contact. A contact arm abutment is mounted on a contact chamber sidewall and projects inwardly into the chamber. The abutment is aligned with an elongated contact arm of the female contact and is spaced outwardly from that arm to set the limit of acceptable outward contact arm deflection. A portion of the contact arm extending rearwardly from the diverging tip end is channeled to allow this end to clear the abutment when the contact is inserted longitudinally into the chamber from the rearward end thereof. The abutment limits outward displacement of the contact arm to prevent the overstressing of the arm by an engaging male blade and in a preferred embodiment, is formed as a unitary part of the pocket sidewall.

摘要翻译： 阴接触件具有至少一个具有向外扩张的末端的接触臂，用于引导插入接触件中的阳片的尖端。 接触臂邻接件安装在接触室侧壁上并向内突出到室中。 支座与母接触件的细长接触臂对准，并与该臂向外间隔设置可接受的向外接触臂偏转的极限。 引导从扩张的顶端向后延伸的接触臂的一部分被引导以当接触件从其后端纵向插入腔室时允许该端部清除邻接部。 邻接件限制接触臂的向外移动，以防止由接合的外螺纹刀片对臂的过度应力，并且在优选实施例中，形成为凹口侧壁的整体部分。

公开(公告)号：US4187934A

公开(公告)日：1980-02-12

申请号：US869036

申请日：1978-01-13

申请人： John W. Senften

发明人： John W. Senften

IPC分类号： B60M1/18 ,  B60M1/22 ,  B60M1/225

CPC分类号： B60M1/18

摘要： A section insulator for insulating adjacent sections of contact wire of overhead power supply systems for electrified railway lines and the like is disclosed. The section insulator is interposed between separated ends of adjacent sections of contact wire. Strain plates are secured to the opposed ends of the sections and a strain insulator is secured to the strain plates above the level of the contact wires to maintain the tension in the contact wires. Spaced runners supported by the strain insulator extend between the contact wires, there being air gaps between the ends of the contact wires and the runners. A pair of diverging glider arms is secured to each contact wire section adjacent its end. The glider arms extend toward each other beyond the ends of the contact wire sections and overlap the ends of the runners, there being transverse air gaps between the diverging glider arms and the runners. The system thus provides a smooth under run from one section of contact wire along the diverging glider arms to the runners, then to the other pair of diverging glider arms and to the other section of contact wire. The insulator is supported by members extending vertically from the strain plates to a messenger wire, bridle, or other appropriate support. The section insulators can be adapted to use in ordinary catenary systems, compound catenary systems, ordinary direct suspension trolley systems, and as phase breaks for alternating current systems.

摘要翻译： 公开了一种绝缘子，用于绝缘用于电气化铁路线等的架空供电系统的接触线的相邻部分。 截面绝缘体介于接触线的相邻部分的分离端之间。 应变板被固定到部分的相对端部，并且应变绝缘体固定到接触线的高度以上的应变板以保持接触线中的张力。 由应变绝缘体支撑的间隔的延伸器在接触导线之间延伸，在接触线的端部和流道之间存在气隙。 一对分叉的滑翔机臂固定在靠近其端部的每个接触线部分。 滑翔机臂彼此相对延伸超过接触线段的端部并且与跑道的端部重叠，在分支的滑翔机臂和跑道之间存在横向气隙。 因此，该系统从接触线的一部分沿着分叉滑翔机臂到达跑道，然后提供到另一对分叉的滑翔机臂和接触线的另一部分。 绝缘体由从应变板垂直延伸到消息线，匝或其他适当支撑件的构件支撑。 剖面绝缘子可适用于普通悬链系统，复合悬链系统，普通直接悬架手推车系统以及交流系统的断相。

公开(公告)号：US4115668A

公开(公告)日：1978-09-19

申请号：US792096

申请日：1977-04-29

申请人： Ambroz K. Skrovanek ,  Fred E. Clark, Jr.

发明人： Ambroz K. Skrovanek ,  Fred E. Clark, Jr.

IPC分类号： H04B3/20

CPC分类号： H04B3/20

摘要： An interface unit for a four wire telephone circuit includes an echo suppressor. A filter circuit is connected to the transmit line drop side to detect voice and SF signals and to selectively couple a regenerated SF signal and the voice signal to the line side of the transmit line. A passive filter is selectively coupled to the receive side to attentuate voice echo but bypass SF signals.

摘要翻译： 用于四线电话电路的接口单元包括回波抑制器。 滤波器电路连接到发射线路降侧，以检测语音和SF信号，并将再生的SF信号和语音信号选择性地耦合到发射线的线路侧。 无源滤波器选择性地耦合到接收侧以注意声音回声但是旁路SF信号。

公开(公告)号：US4110711A

公开(公告)日：1978-08-29

申请号：US766588

申请日：1977-02-08

申请人： Maur L. Gaetano ,  Ambroz K. Skrovanek

发明人： Maur L. Gaetano ,  Ambroz K. Skrovanek

IPC分类号： H03H7/38

CPC分类号： H03H7/38

摘要： A transmission line having a fixed characteristic impedance, e.g., 600 ohms, is coupled to a receiver through an input transformer working into a very small impedance, e.g., 10 ohms or less. As compared to a conventional arrangement, where an input transformer works into a load nearly as high as the characteristic impedance of the line, the new arrangement has considerably better low frequency response and delay distortion characteristics. The new arrangement permits a much smaller transformer to be used if desired while retaining favorable low frequency response and delay distortion characteristics.

摘要翻译： 具有固定特性阻抗（例如600欧姆）的传输线通过工作在非常小的阻抗（例如10欧姆或更小）的输入变压器耦合到接收器。 与传统布置相比，其中输入变压器工作在几乎与线的特性阻抗一样高的负载中，新布置具有相当好的低频响应和延迟失真特性。 如果需要，新的布置允许使用小得多的变压器，同时保持有利的低频响应和延迟失真特性。

公开(公告)号：US4067634A

公开(公告)日：1978-01-10

申请号：US772672

申请日：1977-02-28

申请人： Ernest Gerhard Hoffman

发明人： Ernest Gerhard Hoffman

IPC分类号： H01R13/46 ,  H01R13/50 ,  H01R13/504 ,  H01R13/52 ,  H01R13/595 ,  H01R13/58

CPC分类号： H01R13/501 ,  H01R13/504 ,  H01R13/52 ,  H01R13/595 ,  H01R2103/00 ,  H01R24/28 ,  Y10S439/936

摘要： A one-piece housing for electrical terminals is disclosed, the housing being of the dead-front type and the enclosed terminals being connectable to external electrical circuits through apertures in the dead-front. The housing is generally formed of a dead-front or base member and two side casings, with web hinges joining these members as integral parts and allowing the side casings to pivot into opened and closed positions on the base member. Screw fasteners, located adjacent the ends of the casings remote from the web hinges, secure the casings together and clamp an electrical cord that is wired to the electrical terminals. Access to the enclosed electrical terminals is obtained, for wiring purposes, by opening one or both of the side casings. Locking lugs are formed integral with the side casings and base member to secure the casings to said base member, when the casings are closed, and provide a locking action in directions both longitudinal and lateral of the housing. These locking lugs thus remove both longitudinal and lateral stresses from the web hinges, and even permit continued use of the housing if the web hinges should fracture after repeated flexing.

公开(公告)号：US3958856A

公开(公告)日：1976-05-25

申请号：US604906

申请日：1975-08-15

申请人： Jerry Mayronne Presson

发明人： Jerry Mayronne Presson

IPC分类号： H01R4/30 ,  H01R13/46 ,  H01R3/00

CPC分类号： H01R4/304 ,  H01R13/465

摘要： Disclosed is a method for "fingerprinting" electrical conductors connected to an electrical wiring device. Also disclosed is an electrical wiring device which allows one to reconstruct the connection of a conductor to at least one device terminal after the conductor is removed from such terminal.

摘要翻译： 公开了一种“指纹”连接到电线设备的电导体的方法。 还公开了一种电接线装置，其允许在导体从这种端子移除之后重建导体与至少一个器件端子的连接。

公开(公告)号：US4695803A

公开(公告)日：1987-09-22

申请号：US825772

申请日：1986-02-03

申请人： Robert H. Rue

发明人： Robert H. Rue

IPC分类号： G01R15/18 ,  G01R31/02 ,  G01R31/06 ,  H05B41/04 ,  G01R31/00 ,  G01R1/22

CPC分类号： H05B41/04 ,  G01R15/186 ,  G01R31/02 ,  G01R31/06

摘要： A ballast tester for HPS lamp circuits includes a body of insulating material, a base which fits the lamp socket, a single wire connected to the base and extending through the body forming a loop, and a hole in the body within the loop to receive a clamp-on ammeter. The ammeter measures short-circuit current, giving an indication of ballast condition.

摘要翻译： 用于HPS灯电路的镇流器测试器包括绝缘材料体，与灯座配合的基座，连接到基座并延伸通过主体的单根线形成环，以及在该环内的主体中的孔以接收 夹紧电流表。 电流表测量短路电流，显示镇流器状况。

公开(公告)号：US4686424A

公开(公告)日：1987-08-11

申请号：US820723

申请日：1986-01-21

申请人： Joe A. Nuckolls ,  Kerry G. Evans

发明人： Joe A. Nuckolls ,  Kerry G. Evans

IPC分类号： H02J9/06 ,  H05B41/285 ,  H05B37/00

CPC分类号： H02J9/065 ,  H05B41/2853

摘要： An emergency lighting circuit includes a lamp which can be energized by a battery-inverter circuit upon power failure. The battery is connected to the inverter circuit and the lamp by operation of a relay which is connected to the rectifier supplying charging current to the battery. The rectifier is connected across the line in series with a ballast reactor. The circuit can be used as emergency lighting only or the lamp can be employed for normal lighting purposes and switched to the inverter power when line voltage is interrupted.

摘要翻译： 应急照​​明电路包括在停电时可由电池 - 逆变器电路通电的灯。 电池通过连接到整流器的继电器通​​过向蓄电池提供充电电流而连接到逆变器电路和灯。 整流器与镇流器反应器串联连接。 该电路只能用作应急照明灯，或者灯具可以用于正常的照明目的，并在线路电压中断时切换到变频器电源。

公开(公告)号：US4644094A

公开(公告)日：1987-02-17

申请号：US714272

申请日：1985-03-21

申请人： Ernest G. Hoffman

发明人： Ernest G. Hoffman

IPC分类号： H01B7/18 ,  H01B7/00 ,  H01B7/04 ,  H01B7/08 ,  H01B7/22 ,  H01B7/24

CPC分类号： H01B7/0072 ,  H01B7/046 ,  H01B7/0869 ,  H01B7/22

摘要： A reinforced cable having hauling, electrical and hydraulic lines. The cable has a substantially rectangular cross section and includes at least one internal support to protect these lines by resisting external compressive forces, and yet is bendable about one of its transverse axes for easy storage on and deployment from a drum. The internal support also protects the hauling lines from compressive forces applied longitudinally thereof by resisting radial displacement of the hauling lines. In one embodiment, the cable comprises an armor layer, a pair of engaged channels inside the armor layer, and a pair of corrugated supports inside the channels and fixedly spaced apart. The hauling lines, in the form of wire ropes, are located inside the corrugated supports, while the electrical lines are located inside the channels between the corrugated supports. The hydraulic lines can alternatively be located inside the channels between the corrugated supports, or inside the wire ropes. Any spaces inside the channels are filled by elastomeric material. In another embodiment, the cable comprises a rigid tubular support located between and engaging the wire ropes, and an armor layer engaging and enclosing the tubular support and the wire ropes. In this embodiment, the electrical conductor is located inside the tubular support.

摘要翻译： 带有牵引，电气和液压管路的增强电缆。 电缆具有基本上矩形的横截面并且包括至少一个内部支撑件，以通过抵抗外部压缩力来保护这些线路，并且还可围绕其一个横向轴线弯曲，以便容易地从滚筒上存储和展开。 内部支撑件还通过抵抗运输线的径向位移来保护牵引线免受其纵向施加的压缩力。 在一个实施例中，电缆包括铠装层，铠装层内的一对接合通道，以及通道内的一对波纹状支撑件，并且固定间隔开。 钢丝绳形式的牵引线位于波纹状支架的内部，而电线位于波纹支架之间的通道内。 液压管线可替代地位于波纹支撑件之间或钢丝绳内部的通道内。 通道内的任何空间均由弹性材料填充。 在另一个实施例中，电缆包括位于电线绳之间并与之接合的刚性管状支撑件，以及接合和封闭管状支撑件和电线绳的铠装层。 在该实施例中，电导体位于管状支撑件内。