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公开(公告)号：US4649375A
公开(公告)日：1987-03-10
申请号：US793394
申请日：1985-10-31
IPC分类号： B66C23/88 , B66C15/06 , G01R19/145 , G01V3/10 , G08B21/00
CPC分类号： G01R19/145 , B66C15/065
摘要： Apparatus for mounting on a crane or other construction equipment for detecting the presence of an electrical power line. A reference pickup coil mounted on an upper machinery works or other portion of the equipment generates a reference signal proportional to the strength of a magnetic field in a work area. Other pickup coils mounted on a crane boom or other portions of the equipment which may extend into closer proximity to power lines develop signals which are compared with the reference signal. When any of these signals exceed the reference signal by a predetermined amount a warning signal is developed. Coils having the proper ratio of core length to diameter and having coil winding which extend along approximately half the core length provide output signals which have a predictable amplitude.
摘要翻译： 用于安装在用于检测电力线路的存在的起重机或其他施工设备上的装置。 安装在上部机械工具或设备的其他部分上的参考拾取线圈产生与工作区域中的磁场强度成比例的参考信号。 安装在起重机吊杆上的其他拾取线圈或可延伸到更靠近电力线的设备的其他部分产生与参考信号相比较的信号。 当这些信号中的任何一个超过参考信号预定量时，产生警告信号。 具有芯长度与直径的适当比率的线圈和沿着芯长度的大约一半延伸的线圈绕组提供具有可预测幅度的输出信号。
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公开(公告)号：US4796029A
公开(公告)日：1989-01-03
申请号：US851762
申请日：1986-04-14
摘要： The turn tilt table is preferably mounted on a self propelled mobile vehicle for carrying a test article such as a military vehicle weighing up to 70 tons. The mobile vehicle is driven to a plurality of test sites at which radar beams or the like are directed against the test article for determining vehicle radar signatures or the like. During testing, the turn tilt table may be tilted anywhere between a horizontal position and 45.degree. from the horizontal; and may be pivoted 360.degree. about an axis normal to the plane of the turn tilt table to any of a plurality of positions within 360.degree.. If vehicles are being tested, a ramp is connectable to the table to allow the vehicle to be driven onto or off the table.
摘要翻译： 转倾斜台优选安装在自推进移动车辆上，用于承载诸如重达70吨的军用车辆的测试物品。 移动车辆被驱动到多个测试场所，雷达波束等被引导到测试物品上以确定车辆雷达签名等。 在测试期间，转动倾斜台可以在水平位置和水平位置45度之间的任何地方倾斜; 并且可以围绕垂直于转动倾斜台的平面的轴枢转360°到360度内的多个位置中的任何一个。 如果车辆正在被测试，斜坡可以连接到桌子上，以允许车辆被驱动到桌面上或从桌子上被打开。
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公开(公告)号：US4736633A
公开(公告)日：1988-04-12
申请号：US843541
申请日：1986-03-25
摘要： The multipurpose vehicle of the present invention is designed to operate in and around dry docks and wharfs and its capable of lifting and moving propellers from propeller shafts within areas confined by a ship's rudder and to carry the propeller to an area away from the ship to be lifted to the wharf by crane. The propellers may weigh as much as 75,000 pounds and be 23 feet in diameter. The vehicle may also be used to accurately position keel blocks and haul blocks weighing up to 25,000 pounds in positions to support a ship. The vehicle may be lifted by crane out of dry dock to test padeyes for safety and certification by applying up to a 50,000 pound pulling force to the payeyes. The vehicle's upper arm can be extended to about 40 feet high or can be lowered to a level permitting the vehicle to pull or carry articles into buildings on the wharf.
摘要翻译： 本发明的多用途车辆被设计成在干船码头和码头周围和周围运行，并且能够在由船舵限制的区域内的螺旋桨轴上提升和移动螺旋桨，并将螺旋桨运送到远离船舶的区域 用起重机提升到码头。 螺旋桨的重量可达75,000磅，直径为23英尺。 车辆也可用于准确定位重量高达25,000磅的龙骨块和牵引块，以支撑船舶。 车辆可以通过起重机从干船坞提升，以通过向支付者施加高达5万磅的拉力来测试安全和认证。 车辆的上臂可以延伸到大约40英尺高，或者可以降低到允许车辆将货物拉到或携带物品到码头上的建筑物中的水平。
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