Going back as far as the Roman times, in ancient Rome Man has started using stone to protect drain covers.

Going back as far as the Roman times, in ancient Rome Man has started using stone to protect drain covers.

The layman term for drain cover (grate) is manhole cover. Say "manhole cover" and pictures of spies/heros making use of the underground sewage system popping out of manhole cover in Hollywood films appear.Historically ever since Man invented the sewage system since the Roman Times to drain water and urban waste away for sanitation purposes, manhole covers (drain covers or grates as we would prefer to call them) have been invented out from the necessity to prevent people from falling into underground sewage and also prevent large objects from entering the drains which cause choking which eventually may lead to flooding.Fast forward to the current day, the sewage system is still utilised under sump grating over the world. As opposed to crude stone manhole covers the Romans used in the ancient days, now we have special steel reinforced stone gratings that provide the thousand year old function of covering nds floor drain of our sewage system.More than simply a cover, check out Jonite's range of drain covers (drain gratings) here: http://www.jonite.us/products/creative-grates