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From: "A.Appleyard" <A.APPLEYARD@fs*.mt*.um*.ac*.uk*>
To: techdiver@terra.net
Date: Mon, 16 Oct 1995 12:50:36 BST
Subject: aqualung precursors (PS)

  In a book about Hans Hass, it said that when wanting diving breathing sets
he went to Draeger's in Lubeck (this was during the 1939-1945 war) and he was
offered:-
    (1) the oxygen rebreathers which he habitually used after that,
    (2) a compressed-air demand-regulated set.
  He chose the rebreather. But it seems from this that there were wartime
German aqualungs! I don't know whether they were copied from captured French
Commeinhes sets, or a separate invention. Does anyone out there know about
these German wartime aqualungs? As to why he rejected them, perhaps:-
  (a) Transportable aqualung compressors were non-existent and he couldn't
carry enough big decanting cylinders for his diving plans in each expedition.
  (b) If they were Commeinhes copies or similar, the small size of the air
cylinders may have put him off.

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