Fecha de publicación: 20/07/1977 Fuente: WIPO "hive" 1480651 Beehive entrance E H WEST L J WEST A A WEST L B WEST and K H WEST 10 July 1974 [11 July 1973] 30549/74 Heading AIM A baseboard for a beehive has a floor, below which are elements, at least one of which supports the floor, spaced such that a container for receiving falling pollen may be positioned below a passage which forms part of the space between the elements, and which has an opening through the floor, across which a planar bee activity control element can be removably supported on guide elements. In the embodiment of Fig. 2, the space 34 between elements 26. 28 supporting a base board 12, has a passage 34a with an opening 52 into supers 18 in the hive body. A pair of guide elements 56 support a control element 60, which is removable by grasping it at access cut-outs 77 in a side wall 16b of the hive and in element 26. A receptacle having openings 71a, and positioned on a plate 69 between elements. 26 and 28, collects pollen scraped from bees passing through circular perforations 66 in the element 60, Fig. 3, after entering-passage 34a via an opening 50 between a wall 16b of the hive and the element 26. Projections 80 on the base board frame serve to improve hive ventilation during transport, by separating the base boards of adjacent hives. Another form of control element, Fig. 4, has an array of elongate openings which, when in position, allows hive ventilation, whilst preventing bee migration. Positioning of an imperfroate sheet metal control element 64, Fig. 5, allows restricted access to the hive, Fig. 6 (not shown), and facilitates "policing" of the hive entrance by the bee colony so that intrusion may be prevented.