Abstract: An apparatus that fits onto a ladder for securing the ladder safely to a circular pole. The apparatus has a pair of curved arms that are each rotatable about a pivot so that they will close onto a pole. The arms are caused to rotate by a lever portion that contacts the pole as the ladder is forced toward the pole such as when it is set up and when a climber begins to climb the ladder. As the lever portion is forced against the pole the curved arm rotates to enclose the pole. The arms have a symmetrical control element in the form of meshed gears so that they act symmetrically as they are set up initially and as they rotated into the enclosing position.

Abstract: Described is a ladder safety device for use with non supported ladders and methods of using such a device. The device has a cross bar and hooks extending from it. The hooks will engage the rails or a rung of the ladder and hold the cross bar tightly against the ladder rails. Legs extend in the opposite direction with feet that will sit on the structure which is commonly a roof, but could also be any structure in which a ladder extends beyond a support line.