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公开(公告)号：US5398616A
公开(公告)日：1995-03-21
申请号：US103056
申请日：1993-08-06
CPC分类号： E01B29/28 , B23P19/06 , B25B21/002
摘要： An automatic fastener applicator for securing fasteners to track support members of a railroad track includes a retaining apparatus for receiving and orienting at least one of the fasteners for application to the track support members, and a drive apparatus for automatically engaging at least one of the oriented fasteners and for rotating the fastener axially for engagement upon the rail support members.
摘要翻译： 一种用于固定紧固件以跟踪铁路轨道的支撑构件的自动紧固件施加器，包括用于接收和定向至少一个紧固件以用于轨道支撑构件的保持装置，以及用于自动接合至少一个定向 紧固件并且用于轴向旋转以紧固在轨道支撑构件上。
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2.发明授权
公开(公告)号：US5191840A
公开(公告)日：1993-03-09
申请号：US758902
申请日：1991-09-11
申请人： Dennis J. Cotic , Jack K. Hosking
发明人： Dennis J. Cotic , Jack K. Hosking
IPC分类号： E01B29/26
CPC分类号： E01B29/26
摘要： A machine for driving spikes into the ties of a railroad track includes a spike driving assembly movably disposed relative to a frame for gripping spikes and driving gripped spikes into the ties, the spike driving assembly having a spike pushing function and a spike percussive function. In the pushing function the spike driving assembly pushes the spike a specified distance into the tie by the application of constant pressure, and in the percussive function the driving assembly percussively completes the driving of the spike into the tie. An operator may selectively alternate between the pushing and percussive functions.
摘要翻译： 用于将钉钉驱动到铁路轨道的连接件中的机器包括相对于框架可移动地设置的钉驱动组件，用于夹紧尖钉并且将夹紧的钉钉驱动到束带中，尖钉驱动组件具有尖峰推动功能和尖峰冲击功能。 在推动功能中，尖头驱动组件通过施加恒定的压力将钉子的特定距离推入扎带中，并且在打击乐功能中，驱动组件将打钉器的打入完成到扎带中。 操作者可以选择性地在推动和冲击功能之间交替。
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公开(公告)号：US4688247A
公开(公告)日：1987-08-18
申请号：US870866
申请日：1986-06-05
申请人： Mircho A. Davidov
发明人： Mircho A. Davidov
CPC分类号： H04N7/167 , H04N21/4341 , H04N21/439 , H04N7/1675 , H04N21/4345
摘要： A subscription television distribution system provides a plurality of sources of television program channels, each of which include a video signal and an encrypted audio signal with the encrypted audio signal including encrypted control and subscriber address data. There is a communication link connecting the plurality of sources with at least one receiving site such as a cable system head end which has means for receiving the plurality of television channels. At the receiving site, the encrypted audio signals are separated from the television channel and are multiplexed together on an non-television channel carrier. An identifying tag is added to each of the video signals for use in subsequently selecting the audio signal corresponding to its associated video signal when the encrypted audio signals are demultiplexed at subscriber locations. At each subscriber there is a TV audio decrypter which selects the tag from a video signal and uses that tag to demultiplex a particular audio signal. The audio signal is then decrypted and is combined with the video signal to provide program information for the subscriber.
摘要翻译： 订阅电视分配系统提供多个电视节目频道源，每个电视节目频道包括视频信号和加密音频信号，加密音频信号包括加密的控制和用户地址数据。 存在将多个源与至少一个接收站点（诸如具有用于接收多个电视频道的装置的电缆系统头端）连接的通信链路。 在接收站点，加密的音频信号与电视频道分离，并在非电视频道载体上被多路复用。 当每个视频信号被加到识别标签中时，当加密的音频信号在用户位置解复用时，随后选择对应于其相关视频信号的音频信号。 在每个用户处，有一个电视音频解密器，它从视频信号中选择标签，并使用该标签对特定音频信号进行解复用。 然后将音频信号解密，并与视频信号组合，为用户提供节目信息。
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公开(公告)号：US4633309A
公开(公告)日：1986-12-30
申请号：US731564
申请日：1985-05-06
申请人： Tony C. Li , Graham S. Stubbs
发明人： Tony C. Li , Graham S. Stubbs
IPC分类号： H04N7/167
CPC分类号： H04N7/1675 , H04N21/436 , H04N21/4623 , H04N21/4627
摘要： A method of controlling the operation of slave decoders in a cable television distribution system having a central control computer; in which each subscriber location having a slave decoder also has a master decoder; in which there is a control message connection between each master decoder and its associated slave decoder(s); and in which the central control computer can individually address each master decoder and each slave decoder. The method includes the steps of transmitting control messages for the slave decoders at the control message frequency for the master decoders. In response thereto, each master decoder will retransmit the control message to its associated slave decoders. Periodically, the central control computer sends deauthorize messages addressed to all slave decoders as a group; however, the deauthorization messages are preceded by an inhibit message addressed to all master decoders, thereby preventing the retransmission of the slave decoder deauthorization message to all slave decoders which are connected to a master decoder.
摘要翻译： 一种在具有中央控制计算机的有线电视分配系统中控制从属解码器的操作的方法; 其中具有从属解码器的每个用户位置还具有主解码器; 其中在每个主解码器及其相关联的从属解码器之间存在控制消息连接; 并且其中中央控制计算机可以单独地寻址每个主解码器和每个从属解码器。 该方法包括以主控解码器的控制消息频率发送从属解码器的控制消息的步骤。 响应于此，每个主解码器将重新发送控制消息到其相关的从属解码器。 定期地，中央控制计算机作为一组发送寻址到所有从属解码器的去授权消息; 然而，去授权消息之前是寻址到所有主解码器的禁止消息，从而防止从解码器去授权消息重新发送到连接到主解码器的所有从属解码器。
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公开(公告)号：US4574171A
公开(公告)日：1986-03-04
申请号：US637266
申请日：1984-08-03
申请人： Ronald S. Denley
发明人： Ronald S. Denley
IPC分类号： H01H3/12
CPC分类号： H01H3/122
摘要： An auxiliary bearing for use in a keyboard to prevent binding of keys having irregularly-shaped keycaps. The irregular keycap is mounted on a plunger which reciprocates in a main switch housing. The switch housing is attached to the keyboard. The keycap also has a coupler attached to its underside. The coupler engages a bearing in the form of a sleeve which supports the coupler along a portion of its length sufficient to preclude the coupler from tilting in the sleeve. The bearing member is mounted on an auxiliary housing which in turn is attached to the keyboard. The connection of the bearing to the auxiliary housing permits the bearing to shift laterally on the housing to permit alignment of the coupler and sleeve despite variations in the auxiliary housing location and the keycap location. But the bearing is prevented from tilting or skewing in the auxiliary housing by a set of cooperating hooks on the housing and bearing.
摘要翻译： 一种用于键盘的辅助轴承，用于防止具有不规则形状的键帽的键的结合。 不规则键帽安装在在主开关壳体中往复运动的柱塞上。 开关壳体连接到键盘。 键帽还具有连接到其下侧的耦合器。 联接器以套筒的形式接合轴承，该轴承沿其长度的一部分支撑联接器，足以防止联接器在套筒中倾斜。 轴承构件安装在辅助壳体上，辅助壳体又连接到键盘。 轴承与辅助壳体的连接允许轴承在壳体上横向移动，以允许联接器和套筒的对准，尽管辅助壳体位置和键帽位置的变化。 但是，通过壳体和轴承上的一组协作钩，防止轴承在辅助壳体中倾斜或倾斜。
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公开(公告)号：US4531020A
公开(公告)日：1985-07-23
申请号：US401258
申请日：1982-07-23
CPC分类号： H04N7/1675 , H04L9/0833 , H04L9/0891 , H04N21/2362 , H04N21/26613 , H04L2209/601
摘要： A method of controlling the simultaneous broadcast of enciphered digital information signals, for example in a radio or television broadcast environment, to a plurality of subscribers provides several levels of enciphering keys. The broadcast digital information signal is in a broadcast common service enciphering key and communication between the transmitter and subscribers may take place in a box key or in a group enciphering key common to a group of subscribers having a common interest in the reception of broadcast signals of a particular type. Each receiver will decipher the broadcast digital information in a specific service key which is common to that broadcast. The service key may be changed at one or more subscribers by communicating the change in the service key to the subscribers by means of the group enciphering key. Further, the group enciphering key may be changed at one or more subscribers or new groups may be formed among subscribers by communicating to the subscribers in one or more group enciphering keys.
摘要翻译： 一种控制多个用户的例如在无线电或电视广播环境中同时广播加密的数字信息信号的方法提供了几个级别的加密密钥。 广播数字信息信号处于广播公用业务加密密钥中，发送方与用户之间的通信可以以对于广播信号的广播信号的广播信号的共同感兴趣的一组用户共同的方框密钥或组加密密钥进行 一种特殊的类型 每个接收机将以该广播共同的特定服务密钥解密广播数字信息。 可以通过通过组加密密钥将服务密钥的改变传达给订户来在一个或多个订户处改变服务密钥。 此外，可以在一个或多个订户处改变组加密密钥，或者可以通过在一个或多个组加密密钥中向订户通信来在订户之间形成新组。
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公开(公告)号：US4438301A
公开(公告)日：1984-03-20
申请号：US478693
申请日：1983-03-25
摘要： Membrane switch technology is applied to the more conventional switch construction found in a rotary switch and a slide switch. Specifically, there may be a membrane and a substrate, each having electrical contacts or contact means formed thereon. A spacer having openings or opening means is positioned between the membrane and the substrate. In the slide switch embodiment, a slide or movable member moves in the spacer opening with the slide forming either the connection between spaced contacts on the substrate or spaced contacts on the membrane and substrate.
摘要翻译： 膜开关技术应用于旋转开关和滑动开关中更传统的开关结构。 具体地，可以存在膜和基板，每个具有形成在其上的电触点或接触装置。 具有开口或开口装置的间隔件位于膜和基底之间。 在滑动开关实施例中，滑动件或可移动部件在间隔开口中移动，滑动件形成基板上的间隔开的接触之间的连接或膜和基板上的间隔开的接触。
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公开(公告)号：US4417114A
公开(公告)日：1983-11-22
申请号：US348998
申请日：1982-02-16
申请人： Willis A. Larson
发明人： Willis A. Larson
CPC分类号： H01H13/83 , H05K3/326 , H05K1/118 , H05K2201/09063 , H05K2201/091 , H05K2201/096 , H05K2201/10106 , H05K2201/1059 , H05K2201/10651 , H05K3/306
摘要： This invention relates to an arrangement for attaching discrete electrical components to a generally flat layer of sheet material. Both mechanical and electrical connections are provided by the attachment elements of the present invention. One form of the invention is directed to a membrane switch keyboard wherein one of the layers of the membrane switch has a tail extending therefrom. The tail has a free end which is adhesively secured to some portion of the keyboard. Conductive traces are formed on the tail and extend to the free end where they contact the leads of an electrical component. The component is held between the tail and the keyboard. In another aspect, which may be applied to the membrane switch keyboard just described, the invention includes a sheet material having two or more slits cut therein for each of the component's leads. The slits are cut in a portion of the sheet having conductive traces formed thereon. The leads of the component are then interlaced through the tabs created by the slits to both mechanically and electrically connect the component to the sheet.
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公开(公告)号：US4403272A
公开(公告)日：1983-09-06
申请号：US155562
申请日：1980-06-02
IPC分类号： H01H13/702 , H05K3/36 , H05K3/40 , H05K1/00
CPC分类号： H05K3/4007 , H01H13/702 , H05K3/365 , H01H2207/004 , H01H2207/006 , H01H2207/008 , H01H2229/002 , H05K2201/0355 , H05K2201/0367 , H05K2201/0382 , H05K2201/091 , H05K2201/09881 , H05K2201/09909
摘要： A switching device, for example a membrane switch, having an interconnect tail for electrically connecting the switching device to a circuit board. The tail has conductive traces formed thereon, which are in circuit with the conductive elements of the switching device. The conductive traces on the tail are raised from the plane of the tail thus making the traces the most prominent part of the tail. This structure assures electrical contact with the circuit board.
摘要翻译： 具有用于将开关装置电连接到电路板的互连尾部的开关装置，例如薄膜开关。 尾部具有形成在其上的导电迹线，其与开关装置的导电元件电路连接。 尾部上的导电迹线从尾部的平面上升起，使轨迹成为尾部的最突出部分。 该结构确保与电路板的电接触。
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公开(公告)号：US4323922A
公开(公告)日：1982-04-06
申请号：US104147
申请日：1979-12-17
IPC分类号： H04N7/16
CPC分类号： H04N7/162
摘要： A converter/decoder for use in subscription television includes means for converting any input TV channel to a predetermined output channel. Decoding means are connected to the converter at its output for decoding the selected output channel. The decoder is enabled in response to data carried on the TV signal which describes the program level of the particular selected channel. The means for enabling the decoder includes a comparison circuit which compares the television signal program level data with authorization data and performs an enabling function when there is correspondence between the two data entries. The authorization data may be received by the converter/decoder simultaneously with the program level data, but at a frequency other than that of the television signal, for example, at a frequency in the FM band.
摘要翻译： 用于订阅电视的转换器/解码器包括用于将任何输入TV信道转换成预定输出信道的装置。 解码装置在其输出处连接到转换器，用于对所选择的输出通道进行解码。 解码器响应于描述特定所选频道的节目级别的TV信号上承载的数据被使能。 用于启用解码器的装置包括比较电路，其将电视信号节目级数据与授权数据进行比较，并且当两个数据条目之间存在对应关系时执行启用功能。 授权数据可以由转换器/解码器与节目级数据同时接收，但以与电视信号不同的频率，例如以FM频带中的频率接收。
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