New-York tribune. [volume] (New York [N.Y.]) 1866-1924, 1882-05-13
4 NEW WY or MIXING ZOE.

TESTING A CHEAP AND EFFECTIVE PLAN.
INTERESTING EXPERLMENTs IN GREENPoINT-PRo-
pUClNG INTENsE COLD By THE USE OF AM
MONA AND GLYCEHNE.
Some interesting and successful experiments
hay,, becn made recently ut the laboratory of the Inter
national fee Machine Company, III Greenp0nt on a new
method Of making ice This l. called the l0wpressure
buary syste and its novel feature is the iquefaction
OF ammonia employed at low pressure by gyceIine
The stem called binary because two liquids arc
employ instead OF one nile the leading principle OF
AL ice machines, with the exception OF the old machines
using compressed air the production Of intense cold
by the IN pid yoazatOn OF liquid In previous machines
only one liquid has been employed For this purpose
ether sulpnurOus oxide, suphide OF carbon, ammonia,
methy lie ether, chloride OF metIyl and chym0gen,
product " petroleum dstilatOn. have been USED Tie
most common methods have been the Of ether, sui
phurous oxide and ammonia me advantages OF the
use OF ether, when commonly employed IN England,
are pressure when the machine IS at rest Is zero
The disadvantages are the ready inflammahilty Of
ether necessity OF ubrlcating the piston which
by contact with the elmer PRODUCES soap.
When suphurOus oxide Is employ Ell the pressure when
machine is at work from hfy five 10 one hundred pounds
according TO the cimac Its advantages are that IL IN
coinbus;Dle and that ubricaton OF the piston rod
needed but these are coierpaaced by the deiects OF
excessive pressure ana the fact that contact with the
acid which corrodes the machinery When
ammonia used, las been generally the case in
machine rest il 100 pounds, and when the machine
is at work from 225 To 800 pounds Its advantages are
that IL is uncomfortable and Is the greatest cudprUducer
known, but serious drawbacks are encountered In the
excessive pressure ana consequent danger oil an expo-
and III the difficulties attendant upon running the
To- overcome the disadvantages Of these methods the
binary absorption system" was invented by c. NJ.
Tes-ie du MOtay the French chemist, and August J.
Rossi. This consist IN the substitution of chemical
affinity or absorption for mechanical compression by the
absorption of volatile liquid in another THIS mix
ture o volatile liquids. volatile
other Is separated by the action of vacuum pump, and
when vOaulized produces cold The first applica-
ton OF the to binary liquid etnylOsu phur
OusdeoIdc mixture VI ether ANA sulphurOus oxide.
The experiments recently made were with process in
vented by August j. lioss and Leonard f. Beckwin, In
which mixture OF elyccrine ana ammonia II enp Dyed
The machinery used is similar In both The nrst
application OF the binary system with inc use or ether
and uphurous oxide has been extensively and sasfac-
toriy employed in machines in this country in
Havana Sau Domingo, emma, japan ana elsewhere.
steam engine runs dOuDc-acting vacuum and force
pump which exhausts the volatile liquids by vaporizng
Them refrigerator immersed IN a bath OF brine.
The binary liquid ethyOsu phnrous deOXide, IN yOatii
zng in the refrigerator produces intense cold which IL
Transmitted the brine surrounding the refrigerator,
and the brine, circulating IN pipes transmits the cola TO
the which is intended to cool The gases. under
the slight compression of the pump return the
denser, which IA Immersed In bath Of cooling water.
The ether first quchcd and then the saphurOus oxide
IL absorbed into 1t ~ contact and the binary liquid
the serator to be revoatLed making the opera
ton continuous without any loss from consumption The
al rest pressure very small, and when the
is AT work the pressure Is essthan one anos
pbere. VARYING from 10 to 20 pounds, according 10
climate Mucn less water of condemnation is than
in other ystes, aud there is OF machinery
or danger fire necessity FOR lubucstion. II
stated mat the machines require less attention while
cost OF repairs is diminished, that this method
been found be economical than other systems.
But as been said, ammonia Ii the greatest cold
producer aud 1t desired to md way employing
il the time of overcoming the disadvantage
excessive pressure. This Is believed to have
been accomplished by Messrs. Rosei and Beck
with IN the use OF mixture OF
glycerne and ammonia, which is the second latest
Application OF the binary system. Into the non-volac
givcerine is absorbed the volatile ammonia. BY means
of IA vacuum produced by pump the ammonia is sepa-
rated from the gycerne by vaponzatiou, producing
intense cold In refrigerator, frou which before the
cold is transmitted by circulation OF brine the pro-
duction OF lee cold The ammonia then reab-
sorbed by contact In the gycerine by chemical affinity
and the operation continuous in the first The
chief advantage s the employment OF the great cold
producing power OF the ammonia In rehabilitation, and
The naturalization of Its enormous pressure
sorption in the gycerine When the machine IL
the pressure from to is pounds, against l25
pounds in the ordinary ammonia machine and when the
machine work the pressure is from 80 la 30 pounds
a. compared with pressure OF 225 10 800 pounds In the
ammonia machine. To test the process several machines
were made by the Deamater Iron Works the largest
ing capacity OF from half 10 three-quarters OF
Ton OF Ice day. The experiments Greenpoint were
by the Inventors Messrs Beckwth and Ross
by r. Cillet, yiccpresdent OF the company who mas
been chiefly In developing these
and bringing hem 10 practical application, and by
Professor Charles A. seeley. The latter made a report
which pronounced the system entirely successful a.