Extension ladder with ladder leveler means

Claim 1

In an extension ladder having a bottom section and a top section wherein said sections are each formed of left and right spaced-apart siderails supporting a plurality of rungs there between and said sections are interlocked by slideable engagement of the siderails of the top section with flanges at the rear of the siderails of the bottom section, the improvement which consists of ladder leveler means to enable the ladder to be positioned upright or uneven or inclined surfaces which comprises: A. a pair of sleeve members each formed of metal comprising a G-shaped front portion, a central web portion, and a J-shaped rear portion, said portions being integral providing a channel form unit, B. one of said sleeve members slideably encompassing one of the siderails of said bottom section and the other sleeve member slideably encompassing the opposite bottom section siderail, C. a J-shaped guide member fixed upon each bottom section siderail at the outside rear thereof near the bottom end of the siderail, each said guide member comprising a leg by which the guide member is fixed to its respective siderail, a transverse web and a lip extending from the end of the transverse web parallel to said leg, D. a flange extending from the junction of said rear portion with said web portion of each said sleeve member into the gap between said leg and lip of said guide member whereby the rear of each sleeve member is retained by the respective guide member in slideable engagement with the respective siderail, E. a plurality of spaced-apart, longitudinally aligned holes extending transversely through the central web portion of each sleeve member, and F. spring-biased pin means carried by each lower portion siderail to extend through holes in the respective sleeve members and hold the sleeve members at selected positions along the lower portion siderails.