| 摘要 |
An apparatus for supporting a ladder in inclined position without the necessity for engaging a separate support surface comprises an X-shaped support frame defined by a pair of posts crossing at a junction and interconnected by a beam at a position below the junction to hold the posts in the X-shape. At the top of each post is provided a U bracket which engages underneath a rung of the ladder. A cable passes between the beam and a selected rung of the ladder to hold the triangle against spreading. A second cable extends from the junction of the X frame to the rung carried in the U brackets at the top of the posts.
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