Abstract: A sliding gate latch device having concentric mutually slideable tubular members, an inner one mounted to the sliding gate and the other sliding thereover, the inner tubular member carrying an articulated jaw which engages a pin or bolt on a fixed structure to which the gate is closed. A combination lock is adapted to lock the tubular members together. A rotatable tongue also positions itself within the outer tubular member when the jaw is in the locked position to prevent opening when the tubular members are locked together.

Abstract: A gate latch device shown for swinging and sliding gates. In the swinging gate embodiment, a latch bar rides over a strike plate until a notch in the latch bar is engaged. A pin is simultaneously depressed by contact with the strike plate which releases a latching pin or bolt to immobilize the latch bar until a manual release is effected from a visually non-obvious location. For a sliding gate, concentric mutually slideable tubular members are provided, one mounted to the sliding gate and the other carrying an articulated jaw which engages a pin or bolt on a fixed structure on a fixed structure to which the gate is closed. A combination lock is adapted to lock the tubular members together.