Patent ID: 8127492

Claim:
A barrier mechanism for providing selective access to a passageway on one of the floor of a lobby, room or pavilion, said barrier mechanism comprising in combination: a) a frame having mounting supports for securement to the floor, b) said frame including a rail support substantially parallel to the passageway, c) a carriage assembly slidably movable in opposite directions along the rail support, d) a panel pivotally mounted to said carriage assembly, and being movable between positions selectively blocking said passageway or providing access to said passageway, e) a reversible, motor on the frame, f) means connected between said motor and said carriage assembly, to initiate and complete the sliding movement of the carriage assembly and panel along the rail support, as the motor is energized, g) a bracket rigidly fixed to the panel, and projecting laterally therefrom, h) a turn link attached to the bracket on said panel, and i) multi-part linkage means connecting said turn link to said frame, to produce the pivotal movement of the panel with respect to the carriage assembly as the carriage assembly is slid along the rail support by the motor.