The morning news. [volume] (Savannah, Ga.) 1887-1900, 1891-10-14
ABOUT COMPRESSED AIR.
- g ALREADY A RIVAL OF ELEC-
TRICKY.

a,d hallway Cars Run by It and
clocks ReEulated-othsr Wonders
oft3e New Science.
from The Pittsbur1 Dispatch.
vsw YORK Sept. 3O.-If Engineer Rob
-. C1lham of Aldrich Court be correct il
Nc oAservations compressed air will shortly
=, in the field In opposition to electricity
ore of the revolutionizing forces of this
o.ntnry. He has just returned from or
ovtsnded sojourn in Paris, where he made {
+borouqh study of the compressed air sys
fem OF that metropolis.
m'Toe stories that Mr.. Gillian brings bacl
border uoon the marvellous. The new
dvnauic agent, according to his report, ha!
,ritbin an almost Incredibly short time
,.irlv revolutionizsd many lines OF industry
:, the CAV French capital Ii is at this
IN ,ment propelllng surface cars with I'M
eoualel ease, furnishing motive power for
emaltiplicity of uses, running 10000 clocks
with absolute simultaneity and preserving
meats Of all kinds
nj the multiplied uses to which the inge.
riors and inventive Freuchmen have ap-
nliai compressed air, aud of the develop
man thew have made in means of creating
and distributing it, Mr.. Gillian speaks as
an enthusiast.
WONDERS OF THE SCIENCE.
81 was simply amazed, said he in talking
If his work, ''at the progress made in the
anDIcaton OF the comparatively new
science. Why. in q refrigerator about
fftseu feet square I found the bodies of a
man and woman who had lain there thir-
teen non his, and in both the flesh of the
bodV and face we're in as good condition as
al,ra altar Iaarh ( inf
that the bodies were being kept for the
medical university"
One fact OF Importance noted by Mr.. Gill
ham on his visit was the preparation Paris
engineers are making by means Of COM
pressed air with view to averting the ter
rors Of another seige such as was expert
enced in 1871. Refrigerator stations can in
al emergency be made to contain enough
food to last Paris for over a year.
Before accepting the invitation of Vic
tor Popp to visit the great central station
said the engineer. "ny time was occupied
by personal visits to numerous consumers,
with the view of discovering the various
uses Of c impressed Air in Paris, it's advan-
tages and Disadvantages, and especially to
learn how the consumers felt regarding its
use after having much experience with it.
ENGINES RUN BY AIR.
TAT a very large cafe on Avenue de
Iopera | saw some interesting applications.
% horse-po werEengIne, which was for
nelly operated by steam, is now run by air.
The pressure in the street main at this point
registered Six atmospheres. Near the ca
CINE In the pipe is arranged a pressure-re-
duclng valve, which can be adjusted to any
pressure. In this case the air was reduced
from SIX atmospheres to four atmospheric
From the reduction valve the cir is cons
Quoted TO a small coke radiating device
made from cast iron, eighteen iuches in
diameter.
The heater is hollow cvlirder, having
vertical divisions, the central hollow space
being twelve inches in diameter, with
small cover on top Around and outside
this space, in which the coke is burnt, is ar
ranged series of vertical spaces between
tie fire space and the outside shell.
The air is introduced into this space at
normal temperature of air in the street
mains, is carried upward through the first
VERTICAL division or chamber to the top of
the heater, where it passes into a second
chamber or division, then downward
where, it passes into the third chamber Cr
division, and thus the process of leading the
air up and down through the various verti-
cal divisions of the heater, numbering ten
divisions in this case, is continued until the
air has secured a greatly increased tempers.
ture, due to contact with the interior heated
surface Of the divisions or chambers of the
heater, the degree of temperature depend
ing upon the character of the fire main
taiaed in the heater.
THE MODE OF OPERATION.
"The air is then conducted to the engine,
where it operates exactly as s. cam. The
enCneis connected with dynamo, which
generates all the electricity used in lighting
the premises Of one or two neighbors. Eec-
trio accumulators are arranged in al ad-
joining room next to the engine room of
capacity Sufficient TO furnish light for two
days In case any failure occurs in the
engine, dynamo or air light can be pro-
Ndod.
The exhaust air is taken from the engine
and conducted co u refrigerator of consid-
eraole size, in which are arranged meats Of
sI kinds, game and vegetables. The tenn
peFsture in the refrigerator is never above
~, Is. however, arranged in two com
psFtmonts. In one the temperature is
maintained at or near the freezing point and
theother above it.
l was informed that by increasing tho
az pressure and using the same pressure in
Tue engine as that maintained in the street
ASlu-s!x atmoSpheres -he mad with the
oAaauSt ar manufactured $50 pounds of ice
Per cay. Table bottles filed with water
"ele arranged in order in the refrigerator
any the water frozen solid, and when ice
water ls needed il the cafe they are placed
ou the table. Here is list of the various
agPllcatlons OF compressed air in the city
APPLICATIONS OF THE AIR.
rofce-4Ol motors, representing 1897
horsepower and L. los kllogrameters
power. O'-A A'o0AAA' A0' No''
Eiec:ricity-17,5 $50 incandescent lamps
ana 96O arc lamp.
LOCK SerVice-About 10, 600 CLOCKS.
Canalized public roads Tor distribution of
compressed air, July l, 1890: Total length
u pipes, l25 miles. Up to April l. 1881,
tnere IS total length of nine ciistributing
compressed air for power PURPOSES of sixty
uliies ana Tor clock service sixrv.6ye miles
Mo1lVe Power-Medicel applications air
9atns; medical electricity. electric light
son!al apparatus, elevators, grinders. pipes.
.asins OF nquids, manipulation of wines
Sua drawing OF beer, wringing machines,
"lng machines, embroidery machines
rScnines for hashing meats etc. ice
r n-'Il saws, grindstones, printing aad
% rsS machines, circular saws for ivory.
fa..IlieC making, Joining, cardboard maui
ISsSnI packing, moulding, mar BILE, etc.
lsSues-Saw, polishing lathe, repulsin9
wss e, q ystal lathe, cork lathe, meerschaum
0. actarlng and billiard balls, etc.
d,aner Apphcations-Dynamo, feather
bsrlss machine, tapping machines, card
cSsas happening machines, clipping ma
st,ss;,I COMMISSIONING pump, paper waters.
thS,ng machine. graveling machines, cof-
~Ournlog machines, lace making ma