Arrangement in a gate

A combination of (a) a swingable gate which has a normally closed or rest position and an open position and (b) a supporting post on which the gate is operably mounted for both pivoting and vertical displacement which is characterized by:

• a roller attached to the gate and supported by a stationary cam track on the post;
• the cam track having a slope from a lowermost point, which determines and thus coincides with a rest position of the gate corresponding to the closed position, to continuously higher points on at least one side of the lowermost point and along a path which the roller follows when the gate is moved from the open position to the closed or rest position;
• the slope being of sufficient magnitude so that the roller rolls down the cam track by gravity to return the gate from the open position to the closed position;
• an abutment which is movable from a normal position in the path which the roller follows along the cam track to another position in which it is sufficiently removed from said path to allow the roller to return by gravity to the rest position, the normal position permitting movement of the roller in a direction away from the rest position to the open position of the gate but preventing the roller from returning under gravity from the open position of the gate to the rest position and;
• damper means actuated by pressure of the roller on the abutment to move the abutment against a spring bias from the normal position to the other position, the spring bias being sufficient to return the abutment rapidly to the normal position after the roller passes thereover to the rest position.