Abstract: A plurality of identical panel sections are pivotally interconnected by a pin received in aligned sleeves. The sections may pivot in one direction until adjacent corners abut and in the opposite direction until the sections abut against a horizontally extending pin end portion thereby limiting further the angle of pivotal movement.

Abstract: A first open frame member has a U-shape frame member and a gate pivotally connected thereto with the gate movable between the frame members for sorting animals in either of two directions through the open frame members. A three-way sorting gate is possible by utilizing two of the first frame members with gates in parallel relation. A four-way sorting gate is provided by adding a two-way sorting gate and a five-way sorting gate is provided by combining two three-way sorting gates. In each instance the second frame member has top and bottom elements which pivot to the inner vertical element of the first frame member and the gate has a tube through which the vertical element of the first frame member extends. Each of the gates may be compactly folded for storage and transport.