Amphibian Mark I

 

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DATASHEET OXYGEN REBREATHER

 Siebe Gormanís Amphibian Mark I

Date: 12 January 2003

 

JW. Bech

Manufacturer

Siebe Gorman and Co. Ltd

~1915

Model

Amphibian Mark I

 

Land of origin

U.K

 

Special Note: 

 

 

User group

Military

 

Part no:

 

 

Working principle

Auto-Add (CMF)

 

Gas type

Oxygen

 

Cylinder volume

?

 

Max. cylinder pressure

120 bar

 

Material of cylinder

Steel

 

Counterlung inspire

On the back

 

Counterlung exhale

-

 

Dive time duration

-

 

Operating temperature

-

 

Magnetic signature

-

 

Weight ready to use in Air

-

 

Weight ready to use in water

-

 

MOD

30 feet

 

Scrubber material

Tow, impregnated with a solution of caustic potash

 

Colour

?

 

Price

?

 

Worn

Scrubber+ Bottle on the chest

 

Mouthpiece

Single hose with shut off valve

 

Backpack

Counterlung

 

Extra

 

 

Extra

 

 

 

 

 

 

 

 

If you have any information to add this sheet please mail it to jw.bech@quicknet.nl References to source and names will always be added!  

 

Info found: R.H. Davis, Deep Diving and Submarine operations

 

Origin: http://www.therebreathersite.nl

 

Info:

 

  The original Amphibian triple purpose apparatus, i.e. for use in poison gas or under water, consist of a steel cylinder, charged with pure oxygen for depths not exceeding 30 feet; CO2 absorbent chamber, mouthpiece, noseclip, goggles, a streamlined bag, with excess air escape valve; and- for the use under water only- a lead balance-weight at back, jock strap, etc. For use at greater depths, a mixture of oxygen and air, or of oxygen and helium is used in certain proportions according to the depth at which the diver has to work. (note: first trimix dives?) In some cases the gases are in separate cylinders, each with its own reducing valve  set to deliver the gases in correct proportion. In the modified Amphibian apparatus the excess air of exhaust valve is fitted in front of the wearer, over his shoulder, so as to be more readily accessible. While still of the automatic type, like the more remotely placed valve, the new arrangement also enables the valve to be controlled by hand.

 

 

 

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