首页>
外国专利>
Devices And Methods For Lifting Precast Concrete Domes
Devices And Methods For Lifting Precast Concrete Domes
展开▼
机译:提升预制混凝土圆顶的装置和方法
展开▼
页面导航
摘要
著录项
相似文献
摘要
Devices and methods utilize a lifting beam comprising at least two connectors with a first connector substantially centered on the beam and a second connector disposed closer to an end of the beam which permit a heavy equipment operator to selectively change the vertical orientation of the lifting beam from a substantially horizontal position to a substantially vertical position. The lifting beam is selectively positionable by the equipment operator downwardly through the top opening of a precast, concrete dome without requiring the operator to leave the protection of the equipment cab. When positioned inside the concrete dome, the lifting beam is oriented substantially horizontally and the concrete dome can be lifted and repositioned by lifting the beam.
展开▼