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TUESDAY, MAY 23, 1939
DAILY NEDRASKAN
THREE
Forrester invents device
to clear air of dust, smoke
Joy Forrester designs
model of air filter
A working model of a new type
of air fitter has been designed and
built by Jay W. Forrester of An
eelmo, senior in the University of
Nebraska department of electrical
engineering. The device, known as
9ji electrostatic dust precipitator,
cleans the air of every particle of
dust or tobacco smoke.
The operating principle is to
Charge dust particles with elec
tricity as the air passes thru the
cleaner and. with oppositely
charged plates, to draw the parti
cles out of the air in the same
way that filings are attracted to
a magnet. The air cleaner is pat
terned after the latest type of
electric filters now in commercial
use.
Efficiency unusual.
Efficiency of the new filter is
unusual, Forrester says. Tested in
comparison with a good mechani
cal air cleaner, the ability to re
move soot was markedly superior
New Hovland-Swanson
store to have auditorium
in the electrostatic filter. Lower
operating cost of the new filter
is exemplified bv the unit which
air conditions the first four floors
of the Marshall Field office build
ing in Chicago. There, 272,000
cubic feet of air per minute is
filtered with approximate power
consumption of 5 kilowatts.
Forrester's model consists of
two units. The first electrically
charges each dust particle in the
air passing thru it. The second
contains oppositely charged plates
which attract and hold the dust
particles.
"The air stream passes first
thru the ionizing unit which con
sists of fine wires stretched paral
lel to grounded rods," Forrester
explained. "Each wire is main
tained at a potential of about
10,000 volts above ground. In the
second step, the air stream con
taining the charged particles
passes between parallel plates
about three-eighths of an inch
apart and charged from a 5,000
volt supply. Here a charged dust
particle is attracted toward one
plate and repelled from the other.
The new Hovland-Swanson store
which will open this fall in the
location formerly occupied by
Walts and the Town Talk bakery,
will boast an auditorium on the
third floor. Here the store will
stage fashion shows, according to
John Wylie, advertising manager.
The first and second floors will
be open before the fall school term
begins and the third snoruy aner-
ward. The first floor will show
cosmetics, shoes, millinery, acces
sories, sportswear and lingerie.
The furnishings will be of the
classic type. All of the store's
ready-to-wcar will be on the sec
ond floor.
During the 288-day run of the
Golden Gate International Expo
sition, over S00 conventions will
meet in San Francisco. All have
planned trips to the World's Fair
in San Francisco Bay.
BULLETIN
Pershing Rifles will march as V
unit in the parade following com-
pet tomorrow. The company will
form on the walk in front of the
stadium after inter-company competition.
Tassel meeting tonight at 7:00
at the Student Union, room 31&.
Motion pictures of Ivy Day will
be shown at 7:30.
Barb,
(Continued from Page 1.)
Barb Council, an office which car
ries with it the position of Barb
Union vice president, livened the
Closing session of the Barb Coun
cfl Monday afternoon.
Erie Oonstable emerged as the
new president of the Bart Cuon
Cil when the ballots were counted.
Harriet Lewis, past president of
the Towne club, was voted vice
president, Vernon Wiebusch, secretary-treasurer,
and Jeanet Swen
Bon, historian.
A plan proposed by Art Hen
drickson, president of the Barb
Union, to sell membership tickets
entitling the Barb buyers to ad
mission to the weekly dances, the
winter formal, and the spring pic
nic was relegated to a committee
with power to proceed and carry
the plan into operation if arrange
ments could be maae.
Compet ,
(rvvriiiniifd from Pace 1.)
rifle team will be presented with
white "N" sweaters and the R.
O. T. C. rifle team members, wan
ah awards and honors will oe
T,T.A.pntfd bv the sponsors of the
r i t p. battalions, except for
the Pershing medal, which will be
awarded by Miss Pershing, me
American Auxiliary and L). A. rw
awards, which will be given by
members of their organization,
and the Battery trophy, whicn LOi.
Leo J. Crosby will present
SUMMER 40DS
FOR GIRLS
INTERSTATE
EMPLOYMENT SERVICE
503 See. Mutual Bid.
I
What's What on Style?
I A One Minute Quiz for Men
0- the watch fob at dead
a number as the cloth -top
shoe 7-
A. Believe !t or icm trot
fnta like those flaunted in the
"Nlnetim" are good style
again. Well-drcsMid men are
now wearing thatn with
formal clothe.
Q. Are collar point getting
longer or shorter f
A. The trend Ii toward
longer points, but good
dreeaert Still pick whatever
length they please. Speaking
Of collars, the best looking
ones on earth are Arrows,
and you'll find them only on
Arrow shirts. $2 upr
IP!!
Q. How Wg should the knot
on your necktie bef
A. Medium size. The feuoy
In the center Yht Lis rlfftL
Arrow ties, thanks to thalr
well-chosen fabrics and specially-cut
lining, tie a Lab
some knot $1 and fl-W.
0. Ii the seamleii -crotch
short the most fiomfortabUt
A. No seam mean no
Ing, no chafing, no underwear
mlHery. Arrow short not only
Lave a patented seamleM
crotch, hut alno are sanforised
fabric shrinkage lens than
, guaranteed against
shrinkage, 66c up. Undcrildrts,
60c up.
If it Utn't 'mm 'Jrrt Vb4
it Um't Arrom
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