The Washington herald. [volume] (Washington, D.C.) 1906-1939, 1909-07-31
INVENTS
COOLING APPARATUS
Effective Device Constructed
by DR.. w. j. Manning.
OPERATING EXPENSE LOW
Medical and Sanitary officer of the
Government Printing office Re
dEces Temperature Twelve Degrees
by Simple Method OF Water EyuDO-
ratiOn-AdmirabIe for office.

In these days when the mercury Is soar
ing into the nineties and above, tho dis
comforts Of hot weather are so numerous
and so universally felt, that most people
endeavor to think and speak Of them as
little as possible.
Workers In Office and factory find their
only relief in absorbing themselves IN
work. In an attempt 10 forget the tenn
perature and the extremely unpleasant
consequences of its existence.
There is one man IN Washington, how
ever. who has been thinking OF the dis
comforts attending upon the hot weather,
and thinking hard. Not once has he COM
planned for himself; he has been concern
ed with the suffering Of people who work,
or the agonies Of those who are confined
TO the siclroom, Of the father at his
toll, and the mother in the crowded tene-
ment. unable TO sleep and rest after the
exhaustion OF the day.
DR.. William J. Manning, medical and
sanitary officer Of the Government Print
ing Office. has devoted his spare hours
during the present hot season TO perfect
ing device TO reducing the high tenn
peratures prevailing in factory. Office.
and sick room. and finally his efforts
have been rewarded with success. His
device. simple and inexpensive, IN a prac-
teal test made in the emergency hos
pltal at the printing Office. lowered the
temperature twelve degrees in a few
minutes. which was a most convincing
proof OF its merits.
Evaporation Process.
The apparatus invented by DR. Man
ming rests upon the principle OF the cool
Ing effects OF the evaporation OF liquids.
Everybody knows that it takes heat TO
evaporate water. and that as the process
goes on the surrounding air is cooled,
heat being distracted from It By the
conversion Of the water into vapor.
In the emergency room DIT. Manning
has suspended from the ceiling IN the
vertical plane a strip OF cotton twill three
feet wide and forty feet IN length.
Through a hem in the upper edge he has
run a tube one inch IN diameter and
perforated on the bottom with holes one
inch apart and one-eighth OF an inch IN
diameter. At the lower edge OF this strip
% cloth is a metal trough. Connecting
the tube with the water faucet by means
OF a common rubber hose, water is passed
through. and, percolatng through the
holes. trickles down through the fbers
OF the cloth. thoroughly saturating Il IN
few moments. The trough Is inclined
slightly, and the flow from the cloth IS
run OF through an outlet at the lower
end. Thus a moist area OF great extent
IS produced, and all that IS necessary IS
TO induce rapid evaporation.
Mr.. Manning does this by means OF two
electric fans, one at each end OF the
strip. AS these are set IN motion the
cloth screen. saturated with water, rap
IDLY vibrates and ripples and waves in
the breeze created by the fans Thus the
water Is quickly evaporated. and as the
flow is continuous the process OF cooling
gees on without interruption.
In a demonstration made before a
Washington Herald reporter the tempera-
ture Of the room was reduced from 90
degrees to Sl1a degrees IN fifteen minutes
AS long as the water was kept in flow
the temperature remained the same, and
the pleasing results on a day such as
Friday can well be imagined.
Offers II TO Public.
DR.. Manning. who has already won
prominence through his methods and de-
vices for improving the health and COM
fort Of the 5000 employees OF the Gov
eminent Printing Office. is not seeking
commercial advantage from his inven-
ton, but generously and without restric-
ton offers the device 20 the public. and
10 all who care to take advantage OF H.
Having once been a printer, he sympa-
thizes 10 the fun extent with the discom-
forts endured by workers, and wishes to
do all he can TO alleviate their conditions
OF labor
His device can be installed at a very
small cost. the materials all being cheap
and the work OF construction very simple
II can be adapted TO any room, in hos
pital. Office. or factory. The operating
expenses are practically MI, including
only the motive power for one or two
fans and the water consumed.
The inventor wishes TO announce
through The Washington Herald the re-
suits obtained by his device. and viii
gladly welcome any inquiries as TO its
construction or operation. Any person IN
terested may call at his Office. and wit
ness the operation Of the cooling appa-
ratus, and DIT. Manning willingly offers
what assistance he can give to interested
persons
Public Printer Donnelly has Inspected
the invention. Now that il has been per-
fected, and attained definite results. il
will probably be brought officially TO his
attention, with a view 10 its installation
IN some OF the wash rooms Of the print
ing Office when the mercury reaches an
uncomfortable height