The Savannah morning news. (Savannah, Ga.) 1900-current, 1900-12-09
E6KST6|N & 60.

tho drills hauls che dirt out Of the exca-
vations. freezes tho quicksan1. Furnish
rs fresh air 20 the workmcn aud pumpA
the water out Of the tunnels The men
working IN the tunnels use pneumatic
tools pneumatic hammer. miniature
rockdrill, as Il werc-can do the work OF
six men. armed with ordinary tools
Pneumatic chiscls and augcrs are also
used.
Varied Uses Of Air Force.
Another remarkable use for compressed
DIR is 10 paint houses The great APP
praisers' Stores in New York city and
the main buildings AZ the Chicago World s.
Fair. were painted hv means Of lquii
paint forced through the nozzle Of a tube.
by means OF air pressure. In this manner
enc man can do the work Of "a dozen old
fashioned painters A variation Of this
is to polish the surface OF weather beaten
walls. In place OF the paint. very fine,
hard sand Is used. The tremendous force
Of the air blows the sand against the
walls with such power that the friction
produces a high polish. What will prob
ably interest the housewife most. Sc thu
pneumatic carpet sweeper ana duster
Instead OF scraping along the carpet.
missing two-thirds Of the dust and dirt.
the pneumatic sweeper blows the refuse
into convenient receptacle, whence 10
can be removed at leisure.
An those who have travelled on rail.
roads have been saved discomfort and
danger by the airbrake, which is now
Ia almost universal use This same prin-
ciple that can stop an express train with
In few hundred feet can also play the
chimes OF ST. patricks Cathedral The
chimes weigh ESQ pounds and when nrst
installed were played BY electricity. Ow-
l inn ~. ha al ~ Hf
the proclivity of the apparatus FOR get-
/ ting out Of orier some other motive power
was sought Finally compre- air was
selected Electricity IS st.il used as the
communicating agent between the kcy'
| board In the church and thc belfry. The
afr is compressed Ia the two towers AMI
is released by the electricity. whcreupon
the hammers drop upon tho bells ana
the chimes send their melodies into the
world The air Is also used 10 produce
sound IN che great organ.
In Australia compressed air has been
employed in dcpriwng sheep 81 their
woody covering. The shearing machine
IS somewhat similar 90 the clipper used
IN every barber shop. The difference is
In the manipulation. Instead OF being
operated az a dignifed speed by tho hand
Of the operator. compressed air causes
the knives 90 move 20 and fro with re-
mnrk0hlc rapihty, At beinlchHn, PENN
air pressure has been uscd 20 cause a
Gown fountain 20 spout The water is
forced through "a pipe by means % the
compressed air and rises 20 o height OF
more than two hundred feet The use %
the air obviates the necessity OF "a great
water supply and, according 20 com
pctens authorities. air will be used 90
raise water 10 great attitudes FOR the
purpose OF extinguishing fires.
Another use 20 which compressed air
has been put with much success o. IN tho
projecting OF high explosives out OF guns
The dynamite cruiser Nesuv.us whose
guns did such good service in tho Span
ish-American War Is an example % uhls
compressed air can DO applied 90 war.
fare. From the bomhurdmcEt ~ massive
fortresses 90 the gentle arts OF the dairy
Is a long step but here again We tina
compressed air. this time usurpirE the
milking stool. Mr. y, II Norbev Of
Cooleyviile. MINI. has invented a pneu.
matte COW mixer, and the milSua d seems
fated to take her place Ia history beside
Neros nddie. Cleopatra's asp aud the
man who struck Billy Patterson
Edgar Mels