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The
invisible lifejacket
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In the late
sixties, Jost
Bernhardt tested what was then his latest invention,
the BS 8, an inconspicuous lifejacket designed for inland waterway
sailing. In preparing its introduction to the market, he could
not have expected the extent of opportunity, which would be later
presented. Success was based primarily on the BS 8's discreet
quality. Everyone from the population of hobby sailors desired
comfort and convenience, a quality that a clumsy, obstructive
lifejacket could not provide.
At this point,
however, Bernhardt was not thinking of the still relatively small
population of hobby skippers. His concern was directed toward
those who only took to the water involuntarily, in other words,
those who earned their daily wages through hard work as sailors.
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The deflated life jacket:
flat and unobtrusive.
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The Insurance
Association for Domestic Shipping was alarmed by high accident
figures and fatalities amongst sailors in inland waters. One reason
for these poor statistics was a lack of understanding in lifejacket
safety. Most types, until then, were impractical to say the least,
often getting in the way while one was working. When the working
day was over, seamen never wore a lifejacket on land. The awkwardness
of a clumsy lifejacket presented too much room for ridicule. However,
misfortune never sleeps, and the consequence was that each year
the Insurance Association had an increasing number of widows to
look after
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This
situation prompted Jost
Bernhardt to produce the BS 8. An inflatable lifejacket,
the heart of its design was the SECUMATIC 8, an automatic inflator.
This device was a miracle produced by a team of fine mechanics from
the Wedel Precision Engineering Company of Georg Hase & Son.
The safety mechanism can best be described by its water-sensitive
element. Without water contact, a pill composed from cellulose holds
the lever-spring system cocked. Upon contact with water, the water-sensitive
pill quickly disintegrates. This prompts the system to discharge
a pin, which pierces a carbon dioxide cartridge. The gas in the
chamber is then released to inflate a buoyancy chamber.
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As long as
this pill remains dry, in other words, as long as the wearer of
the lifejacket holding the automatic inflator does not fall into
water, the buoyancy chamber remains empty and flat. The jacket
can then be folded into a small shape. In this deflated condition,
it has an olive colored top. However, when the lifejacket is inflated,
the olive side folds down and a radiant orange color over takes
the jacket.
Thanks to
the revolutionary element of the BS 8, a person who is unconscious
and falls into the water will not drown.
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The
inflated life jacket:
pure safety around the neck.
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The buoyancy
chamber is inflated upon water contact and turns a person onto
his back, in accordance with the laws of flotation physics. Most
importantly, the person's head is above water at all times.
The news of
this safety element, coupled with the ease of use and the comfort
of wearing a virtually unnoticeable personal flotation device
quickly spread. The still small sailing community became enthusiastic
about this new offer. The new design provided an alternative to
the average bulky life vests. This enthusiasm has not diminished
today, even amongst the generations of lifejackets that have followed.
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