Ladder extension device

Claim 1

A ladder accessory for releasably securing a wooden extension to a leg of a ladder, comprising: (a) receiving means for receiving said ladder extension in such a manner as to permit longitudinal sliding adjustment of said extension relative to said receiving means; (b) securing means for releasably securing said receiving means to said ladder leg with said extension extending parallel to said ladder leg; and (c) retaining means for releasably retaining said extension against longitudinal movement thereof relative to said receiving means, said retaining means comprising manually operable means for operating said retaining means, penetration means for penetrating into said wooden extension thereby engaging said extension in response to actuation of said manually operable means, and a rotatable shaft supporting said penetration means for rotation into an engaged position in which said penetration means penetrates into and thereby engages said wooden extension, said manually operable means comprising a handle which abuts against said extension below said penetration means and thereby prevents further rotation of said penetration means by the weight of said ladder when said penetration means is in its engaged position.