March 1856 - The hand-powered submarine

Today’s submarines boast some of the most advanced propulsion systems ever developed, but back in the early days of underwater travel the means of propulsion was somewhat more primitive.

In this article from 1856 – The Engineer’s first year of publication – the magazine wrote about the development of ‘Deschamps and Vilcocq’s free diving boat’ - a hand-powered submarine.

The article describes a vessel ‘which may be freely directed backwards and forward at the surface or at the bottom of the sea by the operator by means of a screw helix and a rudder, both set in motion by means of gear wheels arranged inside so as to be worked by the hand of the operator’. According to the article, the submarine operator would be able to breath freely and work underwater for several hours thanks to an on-board store of compressed air accessed by sucking on a pipe. Other frills included a glass floor for close analysis of the seabed and a built-in set of rubber gloves for the submariner to touch and palpate objects outside the submersible.

Employing the same principles of buoyancy seen in today’s underwater vehicles, the submarine could be made to rise and fall by filling and emptying two sets of hosing attached to the outside of the vessel with compressed air. Batteries contained within a watertight chamber powered on-board lights as well as a search lamp to ‘project light to a very great distance’.

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