Atlanta Georgian. [volume] (Atlanta, Ga.) 1912-1939, 1913-10-12
MAXIM 7 ]
HUSH NOISE
AND MAKE
DEAF He Ar
American Inventors Electric Ma
chine Sheds Silence Like Lamp
Casts ught-Price Within
Reach-First Test in Hospital.
His 'SOunder' Jars Rusty Mechan-
ism of Ear Into Activity-TeIls
How Bath Tub Furnished the
Inspiration for Gun Muffler.

IN less than one year Hiram Percy
Maxim, inventor OF the Maxim gun
glencer, is going to hush every un-
pleasant noise in Atlanta, Boston,
New York, Chicago. or any other
place The cars and trains will go on
numbering, the wheels will rattle.
whistles will Shrek cries of hawkers
and children will fill the streets; but
you, sitting at home, in your office, in
a railway train or the street cars,
will hear none of this. The cars will
neither rattle nor thunder. The
streets will bear only dead silence to
you.
It sounds Utopian-like one of the
dreams of a Wells. It is a reality.
Hiram Percy Maxim, son of Hiram
Maxim, the machine gun wizard, not
only promises all this, but in his
house No. $50 Prospect avenue, Hart
ford, Conn, he has the device with
which he has proved that it can be
done This little instrument is the
elimination of a lifelong dream in
which the inventor has sacrificed years
OF painstaking effort in investigative
research.
Silence Is Almost uncanny.
In operations effected by the mere
pressing of an electric button any
single room or section of a room can
be made absolutely proof against
noise With this simple yet marvel
Gus mechanism in operation, Mrs.
Maxim, waiting for her husband to
return from his laboratory for din
ner at night, fails to hear his auto
mobile when it is driven up the road
a window
where she Is sitting, to the garage at
the rear of the house.
She can not detect Mr.. Maxim
when he comes up the front steps or
the house No noise is audible to her
ears when he fits the key IN the lock
and noisily enters the wide English
hallway Only when the sixth sense
of intuition warns her is she aware
that her husband has entered the
room where she is sitting and is
crossing to greet her.
There is something almost uncanny
about this wonderful silencer which,
in less than ten months from now, the
inventor will demonstrate publicly by
first installing it in the ward of a
New York hospital. The moment 1t
is placed in this ward every outside
noise heard there will cease.
The secret of the wizards fnven-
ton, which is to bottle up the noise Of
the world, is simple. The human ear
receives sound vibrations and dis
tnguishes them as sound up to a
rate Of 10000 per second. Beyond
tina, rate of vibration there is no
sound to the human ear. The aver
ase vibrations of the street.-the
street hum or the street note-is low,
at about $50 vibrations. Mr.. Maxim
with his silencer will accelerate the
speed of these vibrations beyond the
ear vibration speed limit. That car
rles them beyond the range of the
ear drum. In other words, you don't
near them at all
Important as Fresh Air.
It is as important that we have
quiet as that we have fresh air." said
MI, Maxim, pulling up a chair in the
snug sun parlor, built on a front cor
ner of his house and running his
myers absuactedly through his thick
sray-black hair. "And I'm going to
make the world quiet"
Now let me cite an example to
bring you and your readers nearer to
what l am getting at. The eye is
sensitive to light vibrations within a
certain range. But light exists be-
yond that range. AT the foot of the
scale Of the prismatic colors is the
@@AN@As@4AAE uASlldblS IC0s DIT liA6
TOP is the ultra violet It is possible
% take photographs with the aid Of
Ehese ultra rays though they convey
40 suggestion of light to our eyes.
Ehe red Is too low; the violet too
high,
The universal silence is based
upon exactly the same principle ap-
phed to sound The car Is sensitive
10 certain sound vibrations within a
EArTQiY
range we hear no sound though
soend exists there.
WHAT THE MAXIM UNIVER-
SAL SILENCER DOES Is TO
MODIFY SOUND VIBRATIONS so
THAT THEY ARE NO LONGER
AUDIBLE TO THE EAR
This modification builds up, as Il
were, a screen of silence between the
ear and sound-that is the silencer
raises the vibrations of ordinary
noises above the range of hearing by
SO increasing the sound vibrations
from those noises that they become
0ndetectable to the ear.
Like Lamp-Sheds Silence.
IF you raise the vibrations of the
street hum from 450 per second to So
700 per second, then you can not hear
the noise of the street, for, as I have
said, the normal ear can not detect
sound that produces above 80, 600 vi
orations to the second. My universal
sllencer raises the vibrations in ex
ectly this way.
1T is little electric device not dis
similar to an electric lamp and like it,
attached by a cord to an electric plug.
instead of shedding light it sheds 81
!ence, Now, when you go home, you
press a button or turn a switch and
get light, heat or air with your
electric FAM.
Il am going to add to this list Of
utilities and give silence, secured by
the same process, that Of merely
pressing a button.
The silencer is perfectly practical.
As far as cost is concerned, it will be
within the reach of all. / wish }
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