Good evening, I recently read an article from 1911 that talks about the ventilation on the titanic, we talk about portholes with automatic ventilation. Can anyone tell me more? In the porthole in the photo there are two "valves" above, does anyone know what they are for?
https://www.ggarchives.com/DigitalA...atingPortholes-500.jpg?ezimgfmt=ng:webp/ngcb1"The windows of the ship throughout are fitted with slide ventilators adjustable at the will of the occupants. In the case of the portholes, of which there are just x,000, those that light the lower decks are fitted with an ingenious ventilating device. When the ship heels so much that the porthole touches the water, the latter automatically closes the ventilating apertures of the former. But when the craft rights herself again, and the porthole emerges from the water, the apertures reopen; so that even in the stormiest weather, there is but slight interference with the ventilation that comes from the portholes."
https://www.ggarchives.com/DigitalA...atingPortholes-500.jpg?ezimgfmt=ng:webp/ngcb1"The windows of the ship throughout are fitted with slide ventilators adjustable at the will of the occupants. In the case of the portholes, of which there are just x,000, those that light the lower decks are fitted with an ingenious ventilating device. When the ship heels so much that the porthole touches the water, the latter automatically closes the ventilating apertures of the former. But when the craft rights herself again, and the porthole emerges from the water, the apertures reopen; so that even in the stormiest weather, there is but slight interference with the ventilation that comes from the portholes."
