All weather switch for railroads
    1.
    发明授权
    All weather switch for railroads 失效
    所有天气切换铁路

    公开(公告)号:US4534527A

    公开(公告)日:1985-08-13

    申请号:US575407

    申请日:1984-01-30

    IPC分类号: E01B7/00 E01B7/04 E01B7/02

    CPC分类号: E01B7/00 E01B7/04 E01B2202/08

    摘要: An improved railroad stub switch is described in which the axial rail tension or compression forces due to temperature fluctuations are transmitted through the switch by means of radius arms connected to both the switch and fixed rails, thereby eliminating the need for expensive expansion joints at the switch. In a preferred embodiment, interlocking point shoes are also employed so as to hold the butt ends in vertical and horizontal register and transmit a signal to the trailing side rail of the impending approach of a load from the approach side rail, thereby reducing batter on the trailing side rail.

    摘要翻译: 描述了一种改进的铁路短截线开关,其中由于温度波动引起的轴向轨道张力或压缩力通过连接到开关和固定轨道的半径臂传递通过开关,从而消除了在开关处需要昂贵的膨胀节 。 在优选实施例中,还采用互锁点滑块,以将对接端保持在垂直和水平对准中,并将信号传递到来自接近侧轨的即将到达的负载接近的后侧轨道,从而减少 后侧轨。

    Hydraulically driven railway car
    2.
    发明授权
    Hydraulically driven railway car 失效
    液压驱动的铁路车

    公开(公告)号:US4356773A

    公开(公告)日:1982-11-02

    申请号:US83216

    申请日:1979-10-09

    IPC分类号: B61C9/14 B61D15/12 B61C13/00

    CPC分类号: B61D15/12 B61C9/14

    摘要: A motorized track car with a wheeled lower portion for rolling along a railroad track, and a platform carried by the wheeled lower portion. The platform has seating accommodation for one or more persons with the propulsion means for the vehicle disposed below the platform. The propulsion means consists of an internal combustion engine drivingly connected to hydraulic pump means providing fluid pressure for hydraulic motors drivingly associated with wheels of the car. There is control valve means operable by a person seated on the platform to control flow of hydraulic fluid for the pump and motor to vary the speed of travel of the vehicle from zero to maximum in each of forward and backward directions of travel. There is brake means operatively associated with at least one wheel of the track car and operable from the platform and, preferably, by a single lever control which also operates the control valve means. The arrangement of the propulsion means and seating accommodation is such as to provide a compact vehicle with maximum accommodation for a pay load and a vehicle weight such that it can be manually removed from and placed on the track by no more than two persons.

    摘要翻译: 一种具有沿着铁路轨道滚动的轮下部的电动轨道车,以及由轮式下部承载的平台。 该平台具有用于一个或多个人的座位,其具有布置在平台下方的车辆的推进装置。 推进装置包括内燃机驱动地连接到液压泵装置,为与汽车车轮驱动相关联的液压马达提供流体压力。 存在可由坐在平台上的人员操作的控制阀装置,以控制用于泵和电动机的液压流体的流动,以使车辆的行进速度在行驶的前后方向中从零到最大。 存在与轨道车辆的至少一个车轮可操作地相关联的制动装置,并且可以从平台操作,并且优选地通过也操作控制阀装置的单个控制杆控制。 推进装置和座椅住宿的布置是提供一种紧凑的车辆,其具有用于工作负荷和车辆重量的最大容纳,使得其可以由不超过两个人手动地从轨道上移除并放置在轨道上。