| 摘要 |
A lifting device comprises a rotatable pawl with arm held in a pawl sleeve. The pawl has an open position in which a rope may be freely adjusted in tightening or loosening direction, and a close position in which the rope is lockably engaged between the pawl and the pawl sleeve. The pawl has a pawl arm against which the locked rope may be directed to rotate the pawl into an open position. The lifting device also includes a pulley for mechanical advantage, and a base for mounting to a surface. |
