Copper helmet with rubberised canvas diving suit and weighted boots
Standard diving dress
Diver in standard diving dress, Ožbalt, Slovenia (1958)
Other names
Heavy diving gear, deep sea diving suit
Uses
Personal protective equipment with surface supplied breathing air for underwater diving
Inventor
Deane brothers and Augustus Siebe
Manufacturer
Various, see Manufacturers
Standard diving dress, also known as hard-hat or copper hat equipment, deep sea diving suit or heavy gear, is a type of diving suit that was formerly used for all relatively deep underwater work that required more than breath-hold duration, which included marine salvage, civil engineering, pearl shell diving and other commercial diving work, and similar naval diving applications. Standard diving dress has largely been superseded by lighter and more comfortable equipment.[1]
Standard diving dress consists of a diving helmet made from copper and brass or bronze, clamped over a watertight gasket to a waterproofed canvas suit, an air hose from a surface-supplied manually operated pump or low pressure breathing air compressor, a diving knife, and weights to counteract buoyancy, generally on the chest, back and shoes.[2] Later models were equipped with a diver's telephone for voice communications with the surface. The term deep sea diving was used to distinguish diving with this equipment from shallow water diving using a shallow water helmet, which was not sealed to the suit.
Some variants used rebreather systems to extend the use of gas supplies carried by the diver, and were effectively self-contained underwater breathing apparatus, and others were suitable for use with helium based breathing gases for deeper work. Divers could be deployed directly by lowering or raising them using the lifeline, or could be transported on a diving stage. Most diving work using standard dress was done heavy, with the diver sufficiently negatively buoyant to walk on the bottom, and the suits were not capable of the fine buoyancy control needed for mid-water swimming.
^Cite error: The named reference USN 1963a was invoked but never defined (see the help page).
^Cite error: The named reference Stillson was invoked but never defined (see the help page).
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