LIFE-BOAT AND DAVITS ON THE TITANIC
This diagram shows very clearly the arrangement of the life-boats and the manner in which they were launched.
One who has looked into modern methods for safeguarding a vessel of the Titanic type can hardly imagine an accident that could cause her to founder. No collision such as has been the fate of any ship in recent years, it has been thought up to this time, could send her down, nor could running against an iceberg do it unless such an accident were coupled with the remotely possible blowing out of a boiler. She would sink at once, probably, if she were to run over a submerged rock or derelict in such manner that both her keel plates and her double bottom were torn away for more than half her length; but such a catastrophe was so remotely possible that it did not even enter the field of conjecture.
The reason for all this is found in the modern arrangement of water-tight steel compartments into which all ships now are divided and of which the Titanic had fifteen so disposed that half of them, including the largest, could be flooded without impairing the safety of the vessel. Probably it was the working of these bulkheads and the water-tight doors between them as they are supposed to work that saved the Titanic from foundering when she struck the iceberg.
These bulkheads were of heavy sheet steel and started at the very bottom of the ship and extended right up to the top side. The openings in the bulkheads were just about the size of the ordinary doorway, but the doors did not swing as in a house, but fitted into water-tight grooves above the opening. They could be released instantly in several ways, and once closed formed a barrier to the water as solid as the bulkhead itself.
In the Titanic, as in other great modern ships, these doors were held in place above the openings by friction clutches. On the bridge was a switch which connected with an electric magnet at the side of the bulkhead opening. The turning of this switch caused the magnet to draw down a heavy weight, which instantly released the friction clutch, and allowed the door to fall or slide down over the opening in a second. If, however, through accident the bridge switch was rendered useless the doors would close automatically in a few seconds. This was arranged by means of large metal floats at the side of the doorways, which rested just above the level of the double bottom, and as the water entered the compartments these floats would rise to it and directly release the clutch holding the door open. These clutches could also be released by hand.
Copyright by Underwood & Underwood, N. Y.
