| 摘要 |
A lifting apparatus for extending upwardly out of a commercial building roof hatch, including a ladder docking device surrounding the roof hatch and optionally including roof hatch grab bars for ease of emergence through the roof hatch. The roof hatch ladder docking device is rapidly and removably attached to a permanent vertical ladder attached to the interior of the building. The lifting apparatus includes a winch post, a pulley mounted on the winch post and the ladder attachment device includes a fixed lower ladder attachment bracket along with a sliding upper ladder attachment sleeved over the winch post.
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