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1. 发明授权

US3794833A Train speed control system 失效
标题翻译：火车速度控制系统
公开(公告)号：US3794833A
公开(公告)日：1974-02-26
申请号：US3794833D
申请日：1972-05-25
申请人： WESTINGHOUSE AIR BRAKE CO
发明人： BLAZEK F , DUFER W , FRANKE R , SCHATZEL P
IPC分类号： B61L3/22 , B61L3/10
CPC分类号： B61L3/221
摘要： High frequency detector track circuits are coupled to the rails at crossbonds which divide the track stretch into sections without insulated joints. The HF transmitters supply track energy both directions from alternate bonds into each track section of the adjoining pair. Correspondingly tuned receivers at the other end of each section control track relays which indicate the track occupancy condition. Successive pairs of track sections have different frequencies selected on a random basis from a predetermined plurality. Train control energy of a different, single frequency is supplied to the rails at the exit end of each section and is modulated by one of a plurality of low frequency code rates selected in accordance with the track occupancy condition of advance sections as determined by the track circuits. Each train is equipped with train control apparatus including at least cab signals and overspeed protection. Receivers inductively coupled to the rails pick up and supply the speed signals through a demodulator and active filters to register an allowed speed indication in accordance with the detected code rate. Train speed sensing apparatus registers the actual train speed. Overspeed detection apparatus then compares allowable and actual speeds, detects an overspeed condition, and actuates an automatic braking action if the train operator does not initiate a speed reduction within a preset time limit.
摘要翻译：高频探测器轨道电路在横截面处连接到轨道，其将轨道拉伸分成没有绝缘接头的部分。 HF发射机向邻接对的每个轨道部分提供从交替键到达两个方向的轨道能量。在每个部分的另一端相应调谐的接收器控制指示轨道占用条件的轨道继电器。连续的轨道段对具有从预定的多个随机选择的不同频率。将不同的单个频率的列车控制能量提供给每个部分的出口处的轨道，并且由根据由轨道确定的提前部分的轨道占用条件选择的多个低频码率之一调制电路。每列火车配备有至少包括驾驶室信号和超速保护的列车控制装置。感应耦合到轨道的接收器通过解调器和有源滤波器拾取并提供速度信号，以根据检测到的码率来注册允许的速度指示。列车速度检测装置记录实际列车速度。超速检测装置然后比较允许速度和实际速度，检测超速状况，并且如果列车操作者在预设时限内没有启动速度降低，则启动自动制动动作。

2. 发明授权

US3736420A Switch control arrangement for railroad classification yards 失效
标题翻译：铁路分类赛的开关控制装置
公开(公告)号：US3736420A
公开(公告)日：1973-05-29
申请号：US3736420D
申请日：1971-09-13
申请人： WESTINGHOUSE AIR BRAKE CO
发明人： ELDER J , DUFER W
IPC分类号： B61L17/00 , B61L19/14
CPC分类号： B61L17/00
摘要： The central data processor controlling the automatic switching system also compares the initial axle count, registered when a car enters the yard, with the axle count for that car from a wheel detector in the approach to each switch along the selected route. As long as the compared counts are not equal, the data processor holds energized an added detector relay. Back contacts of this relay interrupt the switch control circuit network to inhibit switch operation to the position selected for the next car, in the same manner as switch detector track circuit relay contacts are used. Thus the switch is locked against movement, not only when the associated track circuit is occupied but by lack of comparison between the axle counts if the track circuit is spanned, and full operating safety is maintained even with long cars. Blocking jacks for each storage track are provided in the track diagram on the yard control console. Insertion of a plug into a jack, to block further entry of cars in that track, activates a circuit network which bypasses and thus inhibits control of the key switch for that track by the data processor. Rather the key switch is positioned and held, overriding all other controls, to route all approaching cars away from the route to the blocked track or tracks.
摘要翻译：控制自动切换系统的中央数据处理器还将比较当车辆进入码头时注册的初始车轴数，以及沿着所选择的路线接近每个开关的来自车轮检测器的该车辆的车轴数。只要比较的计数不相等，数据处理器就会保持加电的检测器继电器。该继电器的后触点中断开关控制电路网络，以与开关检测器轨道电路继电器触点相同的方式禁止开关操作到下一个轿厢所选择的位置。因此，不仅当相关联的轨道电路被占用，而且如果轨道电路跨越时，通过缺乏轴计数之间的比较，则开关被锁定以防止移动，并且即使使用长的车辆也能保持全面的操作安全性。每个存储轨道的阻塞插孔在院子控制台的轨迹图中提供。将插头插入千斤顶，以阻止汽车在该轨道中的进一步进入，激活绕过并因此阻止由数据处理器对该轨道的键开关的控制的电路网络。相反，钥匙开关被定位和保持，覆盖所有其他控制器，以将所有接近的车辆从路线路由到阻塞的轨道或轨道。

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