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公开(公告)号：US4723117A
公开(公告)日：1988-02-02
申请号：US26262
申请日：1987-03-16
申请人： Thomas W. Griffiths
发明人： Thomas W. Griffiths
CPC分类号： H01H85/2045 , H01H85/24 , H01H85/0026
摘要： A fuse assembly includes a housing having a base, side and end walls and a removable cover. Studs extend through the base and a current limiting fuse is connected between the studs. The cover, which has an edge gasket, is held against the side and end walls by fasteners which extend through the cover and threadedly engage the studs, the fasteners having enlarged heads to press against the outer surface of the cover and hold it firmly in place, forming a sealed interior chamber for the fuse. A locking filament inhibits unscrewing the fasteners.
摘要翻译： 保险丝组件包括具有底座，侧壁和端壁以及可拆卸盖的壳体。 螺柱延伸穿过基座，并且限流保险丝连接在螺柱之间。 具有边缘垫圈的盖通过延伸穿过盖并与螺栓螺纹接合的紧固件抵靠在侧壁和端壁上，紧固件具有扩大的头部以压靠盖的外表面并将其牢固地保持在适当位置 形成用于保险丝的密封内部室。 锁定灯丝禁止拧紧紧固件。
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公开(公告)号：US4634817A
公开(公告)日：1987-01-06
申请号：US792889
申请日：1985-10-30
CPC分类号： B60L5/16 , Y02T10/7258
摘要： A trolley pole is supported on a vertical shaft so as to be rotatable from side to side while in its elevated, operating position. The shaft is supported on a support structure which is tiltably mounted on a base plate on a vehicle. The base plate can be tilted by extending the arm of a linear actuator. When the base plate is tilted, the pole is lowered and centered and a gravity operated latch structure comes into effect to maintain the pole centered whenever it is not in its operating position. A control circuit coupled to the actuator extends and retracts the actuator arm to pivot the support structure between an upright and a stowed position.
摘要翻译： 手推车杆在垂直轴上支撑，以便在其升高的操作位置中可以从一侧到另一侧旋转。 轴支撑在可倾斜地安装在车辆的基板上的支撑结构上。 可以通过延伸线性致动器的臂来倾斜基板。 当基板倾斜时，极被降低并居中，并且重力操作的闩锁结构在其不处于其操作位置时将杆保持在中心。 耦合到致动器的控制电路延伸和缩回致动器臂，以将支撑结构枢转在直立位置和收起位置之间。
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公开(公告)号：US4567335A
公开(公告)日：1986-01-28
申请号：US626715
申请日：1984-07-02
申请人： Thomas W. Griffiths
发明人： Thomas W. Griffiths
IPC分类号： B60L5/08
CPC分类号： B60L5/08
摘要： A high speed trolley harp assembly includes a rotatable portion at the upper end of a trolley pole with a shoe assembly held on a support structure which is pivotally connected to a lower body at the upper end of the pole. Elastomeric, resilient support cushions are held in the lower body protruding therefrom and contact the support structure to provide a cushioning effect to absorb shock, vibration and noise occurring at high speeds when the shoe assembly rides along an overhead conductor.
摘要翻译： 高速手推车竖琴组件包括在滑车杆的上端的可旋转部分，其中鞋组件保持在支撑结构上，支撑结构在杆的上端枢转地连接到下身。 弹性的弹性支撑垫保持在从其突出的下部主体中并且与支撑结构接触以提供缓冲效果，以便当鞋组件沿着架空导体行驶时吸收在高速下发生的冲击，振动和噪音。
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