A COVER SLAB FOR ROOFTOP ENCLOSURE OF DOCK PUMP HOUSE

摘要

A cover slab for a rooftop enclosure of a dock pump house comprising a stationary slab (10) fixedly provided on an open portion of an enclosure (F), and a moveable slab (20) capable of sliding on the open portion of the enclosure (F). The moveable slab (20) is capable of moving relative to the stationary slab (10). When the moveable slab (20) is moved to a first position, the enclosure (F) is in an open state. When the moveable slab (20) is moved to a second position, the moveable slab (20) engages with the stationary slab (10) and cooperates therewith to close the open portion of the enclosure (F).