Eastern Utah advocate. [volume] (Price, Utah) 1895-1915, 1913-03-20

tlght helmets somewhat resembling
In appearance those used by deep sea
divers. This Ingenious device. which
enables n man "a exist under such con.
diti0nr and ~ conduct investigations
fou a period ~ two hours. consists Of
steel hcndpicce completely covering
the fore part ~ the hcnd and leaving
the ear exposed made alright by
means Of pneumatic washer which
passes IN clrcle around the top % the
head and down each side ~ the face
IN front ~ the ears. connecting under
the chin THIS washer II lnnnted M
soon m the helmet IL adjusted and
pressing out closely against the steel
shell ~ the tslmct on one side. COZ.
forms closely 10 tho contours OF the
head on the other. leaving the ears ex
posed In the front Of each helmet /.
round bullseye OF heavy mica. pro
tected by steel rods. aud below the
bullseye. an inch below the mouth, Il
tho main valve. which Is closed lmme
diately before the man enters the Dol
soned atmosphere.
From the helmet IN front hangs a
pair OF false lungs. or large rubber
sacks. protected 10y a leather apron.
aud on the back. held by straps over
the shoulders aud supported by plates
hitting closely 10 the small OF the hack.
hangs heavy knapsack weighing
about forty pounds. This knapsack
gOualafa NJ two afa.I ..ll.N... -
one containing pure oxygen compress.
ed TO 100 atmosphereH. sufficient 20
support life for one hour. the two To-
gether being sufficient Tor two hours
Above the oxygen cylinders are two
cartridges. or cans. containing loose
crystals Of hydrate OF potassium sum
Client TO absorb two hours eIhalation
or earbonic acid gas With the helmet
these cartridges aud the oxygen cyIln.
ders are connected Ia continuous cir.
cult. and ns soon as the oxygen IL
turned on there Is n flow up from the
oxygen cylinders by "A tube under IN.
right arm 10 the helmet and down un.
der the left arm to the cartridges ana
through them again 10 the tube al the
oxygen valve
upon adjusting the helmet the wear.
or takes several large breaths OF pure
air which he exhales into the false
lungs on his chest and Immediately
shuts the mouth valve. AZ the same
Instant with his right hand behind his
back, he turns ON the oxygen. ana
this regulated by valves 10 an even
feed 60 last for exactly two hours
forces itself up the tube into the bel.
met and by its pressure and reverse
suction draws down through the other
tube and through the cans OF potas
Stun hydrate the exhaled breath. Air
being n mixture of pure nitrogen ana
pure oxygen, the oxygen cylinders fur.
nish one necessary element The sec
ond-the nitrogen-already exists An
the several breaths that the man has
taken into the false lungs. for the nj
Uogen atoms are indestructible ana
mixed with oxygen. can be used IN.
DEFINITELY Passing through the DO
mssium hydfate cylinders, the carbonlc
acid gas Is entirely absorbed. leaving
tue free nitrogen atoms 10 unite with
the oxygen below, ana so Tor two
hours a steady stream Of air passes up
through H. right hand tube, ana for
two hours the cans OF potassium nv.
drate absorb the impurities exhaled
and pass on the nitrogen atoms 10
unite with { fresh oxygen ever fiow.
Ing up from the cylinders.
In order that the helmet men might