The “aquatic kettle” was doubtless the embryo of the diving-bell.
The diving-bell is used mostly for laying submarine masonry.
Evidently men could not work in a diving-bell which is invaded thus by water.
This experiment, though so very simple will illustrate the nature of the diving-bell.
The diving-bell was not mentioned before the sixteenth century.
There used to be a strange machine in use called the "diving-bell."
Do you work with the diving-bell in your business or with armor?
The submarine hydrostat, as it is called, is one of the most ingenious and recent applications of the diving-bell principle.
The sound of driving a nail on the ship above, or a sharp tap on the diving-bell below, can be heard.
For hundreds of years men have used a contrivance called a diving-bell for working under water.