Abstract: A bracket is attachable to a ladder to form a convenience support or other attachment that attaches to the rails or rungs of a ladder, and is readily reconfigured, moved or adjusted as to angular orientation, without substantial assembly steps or tools. The bracket has at least two and preferably three mounting members, each folded at a right angle to define two flat plates, e.g., with one of the plates longer than the other. Each plate has a least one array of spaced openings for fasteners. The fasteners and some of the openings are dimensioned so that the fastener heads or nuts fit through such openings of the plates and the shanks of the fasteners engage in a slot, which can require turning non-round fastener heads for alignment with the slot before insertion, and turning the non-round heads of the fastener back after insertion, or alternatively passing the head through a larger hole joined to the slot.

Abstract: A ventilator for a beehive having a longitudinally extending vent passage therein open at at least one end, a base adapted to be mounted on the cover of the beehive and having at least one vent opening communicating with the interior of the beehive and a control for opening and adjusting the vent opening.