In the late 1920's, two men, William Beebe and Otis Barton had a
yearning to go deeper into the oceans than any man had ever gone
before. At that time, none had been deeper than 350 feet. Otis Barton
had invented a diving tank that would survive a depth of 5000 feet.
This steel ball was built by a man named John Butler. Willian Beebe, a
naturalist/adventurer/scientist/writer named this tank the Bathysphere.
William Beebe was a very influential man with the New York Zoological
Society (The Bronx Zoo) and secured funds to do these deep dives. Otis
Barton accompanied Beebe on these dives but he felt he never got enough
credit for his role.
The Bathysphere was cast from a single piece of steel and had an inside
diameter of 4 1/2 feet. It carried it's own oxygen supply and they used
trays of Soda Lime to control the carbon dioxide and sodium chloride to
remove moisture from the air. They were in communication to the surface
via a telephone, supplied by Alexander Graham Bell and they had
electricity to power a searchlight. Originally the shere was to have 3
windows. 1 for the searchlight and 2 for viewing, but one of the quartz
glass windows cracked during installation. The large wingnut on the
back of the sphere was a 4 inch plug that could be opened quickly upon
surfacing, just in case their oxygen was running low or any other
emergency. Beebe and Barton made many trips into the abbys near
Bermuda, the deepest being 3028 feet on August 15, 1935..
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