VENTED HATCH COVER

摘要

A vented hatch cover assembly for a railroad hopper car including top and bottom members having substantially rigid and somewhat dome-shaped bodies which are divided into four quadrants wherein each quadrant includes coacting baffle members extending from the bodies of the top and bottom members which define a plurality of circuitous air passageways to allow air flow into and out of the ho pper car while restricting moisture and other contaminants from entering the car. An impr oved hatch cover lock mechanism for securing a vented or non-vented cover to the hatc h is easily adjustable to provide a tight seal between the cover and hatch, and provi des a safe controlled opening of a non-vented cover. An improved seal or gasket is arranged between the cover and hatch.