Compressed Air Work And Diving 1909
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COMPRESSED AIR WORK AND DIVING.
CHAPTER I.
Stage Decompression.
^“^-The tables in this b00k have been
resul, rdUt aC“ 8' t0 the meth0d as the
Adn ' °I le °f 3 C°mmittee aPP0inted by the British
dm.ralty in August ,905. to report upon the conditions
S MPJate7 ,g’ and Of the -vestigations of Dr
R N Ha d‘lne; Dr A- E- B°ycott. and Lieutenant Damant,
■IV, at the Lister Institute of Preventive Medicine
Ihe pnnciple of this method is, that the diver, or
halfZ 't C?mpreSSed air’ is br°^ht rapidly to about
the absolute pressure, stopped there for a time, then
ZZi7sseiia ’t16 further after a sufficient time
inrt of h 7 e maX,'mUm nitro?en Passare in any
f his body to become not more than about twice
nitrogen pressure of the air at the lower stage. He
untJe’2r0Ught °n further st^s on the same principle
usuallv ' reaCh“. atmosPheræ pressure. The name
sionV0 meth°d " that °f “ St^e decomP—
decomn t.‘nCtIVe featUre- however, is not that the
is rapid T StageS’ bW Aat the dec°-P^ssion
are ,,r e first part and slow afterwards. Stages
usually adopted because they are found to be the