The Penn's Grove record., 1882-08-05
A Triumphant Demonstration.

- AA
The paradox that the hotter the city
the easier 1t may be cooled, insisted
upon 10y Prof Gsmgee for some time
past, stands explained The uniform
success of every attempt made with the
eirclair in New Orleans, since the
middle Of May, induced thc gs-:c:
Democrat to risk q bold and somewhat
costly experiment. As is usual. In
newspaper offices, the upper stories are
devoted to c~ompositors, aud the passer-
by often pities the semi nude e in
midsummer, sweltering to prepare the
wet sheet Of fresh news for the break
fast table. Bloodhest, viz. : 90 degrees,
with . s~uffocating odor due to organic
refuse thrown off by the perspiring
compositors are matters of nightly OBJ
servation. The men crave for relief.
and who would deny it them II within
the means of employers?
The ablest engin GERS and sanitarians
have pronounced against tine posi-
tility Of cooling and ventilating dwell
ings economically. Mr.. Gamgee has
successfully labored to obviate this
difficulty, and fortunately decided to
test his powers where there could be
no doubt rs to long continued high
temperatures and an urgent demand
for perfect systems of ventilation.
The principle Of his system is the
movement and cooling of immense
volumes of air by resorting only TO the
use OF water pumps and tubes. The
Blake pump, capable of blowing the
Times Democrat building full of air
inc .ssantly, I'VE about 40 gallons of
water per minute, and the duty it per
formed yesterday for the comfort of
WI compositors was calculated by
Mr.. Burchard Thoens rs not exceed
ing o. indicated horse power. This
and the evaporation Of q few gallons
of water Is the sum total OF our rum
ming expenses, and what Is the result?
A scanty water supply fortunately
compelled Mr.. Gamgee to use a COM
non barrel a q reservoir and with
the contents of the various water
pipes, about so gallons of water are
now in constant circuit, moving about
$50 600 cubic feet Of air per hour.
This water, lifted in q tube OF one and
q half inches diameter, returns to the
barrel by one somewhat larger, and
there is . perceptihle hourly diminu-
tion in Its volume, for IL Is raised to a
sprinkler in the top of "a foot tube,
about 2 feet 8 inches In diameter, and
spch il the impetus communicated t..
the air 10 this tube that q mean
velocity Of nearly six miles an hour is
shown In the opening which dischaT-
ges air into one Of the composing
rooms. In the roof of this chamber
are IS openings, six inches by six
inches square, and 8 % carefully have
the calculations been made that there
Ii an uniform upper current of cold
air at the rate of two miles an hour, or
q little over, forcing the foul air and
smoke from the lamps up through the
skylights and windo ws. The distri-
button and the cooling Is absolutely
uniform.
Starting with Mississippi water
from the hydrant at "a degrees Fab
renbeit, In Is minutes the whole
circuit was down to rs degrees in
Is more to rs degrees, In another Is to
"A degrees, and two hours after start
ing to 70 degrees, or about the indica-
ticn Of q we'll bulb thermometer hang
ing In the rooms of the Auxiliary
anitary Association.
The lower composing room stood at
SO degrees Fahrenheit at s p. m. 1t is
lot much occupied, but was not closed
for An hour. II then fell to 80 degrees,
and receding from the aperture of five
feet square area, through which the
cold air entered at rs degrees, the
agreeable and uniform dispersion OF
the impelled pure atmosphere was
most strikingly perceptible. A verita-
BILE plenum of distention of the room
by air is evidenced by the uniform
discharge through the roof openings.
Resistance by friction has been studi-
ously avoided. The area of the VENT
lated space is progressively enlarged,
and every printer acknowledged with
gratitude last night that while pro-
tected from any dangerous and un'
pleasant draught, each man felt him
self In q column Of fresh sir.
Doubters have not been few, and sc
novel an experiment, attended o.
once by 80 much success, cannot fai
to attract the widest attention Their,
Is nothing of the reeondite nature anC
mystery In this important invention
which led the public to stArtle at ths
phonograph, the telephone or the cleo
trie hight. Nevertheless the exquisit,
simplicity of Prot. Gamgee's System o
hydraulic ventilation, while remindin,
us OF Columbus and the egg, undoubt
eddy the prompt and widesi
adoption offs means Of relief whict
implies comfort and prolonged life t.
millions In hot cities and warm eli
mates.
Mr.. Gamgss has coined an Englisi