| 摘要 |
<p>The support assembly is for a hoist, allowing it to be installed and removed without have to thread the free rope end back and forth. It has one or more pulleys rotating on a fixed member. The pulley can be mounted directly on a supporting member, in turn mounted on both sides of the pulley on a main support. One of the member ends can be temporarily freed from the main support to allow passage of the rope in the radial direction.</p> |
