| 摘要 |
A self levelling accessory for extension ladders to accommodate to uneven terrain includes a pair of sockets secured to a cross member and adapted to be mounted on the lower end of a ladder. Two independently adjustable legs are slidably received, each in a respective socket. When the legs are relieved of the weight of the ladder the legs will self adjust to the terrain and when the weight of the ladder is again imposed on the legs, the legs lock by friction within their respective sockets, in adjusted positions.
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