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THE CHINA, MAIL, THURSDÀY. NOVEMBER 24, 1949.
ENGINEERING PAGE
A New Way New British Building Machines Sound Waves
To Salvage Coal Stocks
Mining engineers are taking a tip these days from the old-time gold prospector in the 'art of res- euing valuablo ores or coal from worthless material
The modern technique is known as the "sink-nost method, John T. Sherman, mining engineer of the Anterican Cydnamic Co, told the American Society of Mechani- |cal EnginZVIK,
It utilises the force of gravity to separate valuable from worth- ices taterials and is sinifhr to the method used by the gold min- er's pan, the nítico box, jog and subartte the shalting table to heavy constituents of an ore or raw coal from the light.
Developed Kapidly
"Sink-fioni
processen, highly coarsely- emcient in separating crushed solids on the basi specie gravity differences have developed rapidly during the past few years and today are treating nillions of tons of dres and1 conÍ the Shermat totá each year," meeting.
"The two largest coal cleaning plants in the world, now under
employ eunstruction, will
and the
of float inethods these processes will continue to expand sharply in the future.”
1130
New British ucffines and have materials for the builder were shown retently at Tunbridge Wejf, Kom, during in Building Week organised' by the Ministry of Work This picture shown the "Skiptozer", a multi-purpose machine, da- #igned to receive, transport, and place concrete ettner Kranckey or ter at line on the ground. It le fitted with gỗ #kigt at dife and wild sight dozer blade at sito athuga. The “Skip dozer" is manufactured by Tutz Trokbra. SAU..., High; Roady- Oniewick, London, W.4, England.
New Technical University Aids Aussie Industry
By ANGUS BRAMMALE
sink-The new University of Technology at Sydney, Now South Wales, first of its kind in the Southern Homisphora, has bear sot ap to meet the needs of Australia's. rapid industrial expon, sfom and defɑnco requirements.
Through the process, the Amer- will have mora jean people abundant fuel supply that mil- lions of tons of coat may be sufr vnged from apparently worthless painted ground, scientists Harve cut.
Do Washing Boil Coffee
Los Angeles. Now you can sft blick and let qound waves boll the coffee and
wash the diÓLITON, MA
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in now being built America's most advanced ultrasonie-labora- fories The University of Call RIGGS MOTORS
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Dr. Isadore Atintok, a pho-|
4
High: Conductivity Copper Instrument Wites.
Electrib Motor 'andi Mstor Generatore
siciat; sale bis experimädig show INAPF-MONARCH APPLIANCES.
that super-sound waves are about
Electrical Household, Appliances.
80 tlines atore efficient at wa=|| CUMAKANIPAN & BRFIÐSH LUMA
ing clothes than some washing machines, and are also handy to light your pipe, kill mica and roactios And even help fight"
mog
"I don't know why it does SOTIE' of these things," He said. " only know, for example, that i you put some dirty laundry in Buds bid 10 the intense" sorması Beld the laundry comes But amazingly clean. But it's much tot moom to sư~ thas, this techni- quer is practical.
"However, I do feel that sound waves are desiined to play more important role in die. Home! and Industry."
The sound "burns up" miet and insects By raising their dy tem- peratures rapiaty when the southa energy is charged into Hobt effergy.
Budnick's first "auper whistle” boiled coffee it seven minaten arid 10 a pipeful of tobacco when the open end of the bowt: Wer ex-
sbund for posed to the minate.
RELA
The scientist also used sound. to make a row of pennies turn, sommersaults, nip in the air and 'do other tricks. He bura his Hands frequently in the expert ounts and has to, wear our pro- tectors, even though some of the sounds are so high as to be inau- dible.
The siron is also useful in re- ducing factory. smoke arid experimenting to see how much
Bound punishment from
waves at
supersonic fot tho, pilots planes can stand.
Kudrnick, scoffs ut. the idea of a
Only six other countries (the United States, Ger-
mony, Norway, Sweden, Holland and Portu
Australian- gall have similar instutions. graduates will be trained to world standrads, "Although many ores cannot be
Men prominent abroad in 10-1 going on, building plans will be treated by sink-float methods, dustry, selence and technology completed
avery practically
cual can be mavé sccepted
Speed of development will be appointments cleaned by one or more of these professore. Their names, and determined by what building sound "death ray." He says: ita that sound OVET Sherman sold is thoir of other prospective processes,
ap-materials, equipment and beach-inconceivable
available.
will' molto an important offensivo fact becomes increasingly impor tant as the better seams of costointers, have not yet been un-
Branches, later to become tun weapon of war. United Press. re exhausted and it becomes In charge of tha. University's universities, will be founded at First- big thair of the develope ecessary to use lower grade coals planning are some of Australia's the New South Wales provincialment council was to draw up a mure cult to clean.
biggest ichistrialiste and many cities of Newcastle, Broken Hillylabus for each of the four
One of and Wollongong high-ranking scientiate
initial degree courses, This was America's greatest atomic Ck+
Main Force
done by committens, on ench of perts, Dr. Carl Compton, president
University was Massachusetts
The main force behind the as-wHICH Sydney of
•Institute of
A band in the present New South Won courses for Technical College al- Technology, bad
tablishment of the University is represented by a panel of six.
It was agreed to introditen avolution.
Minister for Education, the Hon.
Use Specific Gravity
In a sink-float plant; the cool containing other untiersible ores z run througly a series of troughs
or vats containing aliquid having specific gravity the, and is the
sired.
nounced.
Cre Arc
Courses will Invade Welde R
R. J. Heffron. His early plans ploma holders, which would on scarcely touched before, such as were evolved shortly after he be able them to obtalfi degrees: By plastics and textiles. They will gravity at which separatah is ap rected towards securing the determination and persistonay he coursed, will' start in-Morth; 1970, come Minister, in 1844, and by year of additional study. These greatest possible application of puslied the scheme through. ||Arrangements wers "When are or coal particles are technology to Industry and com-
The Arst pubille säříburicément courses to obtbirt doc
degree holders to do post- introduced into such a liquid, merce,
of the project came in 1944, Use having a specilie," gravily
when Mr, Heffron, sald at the torates
mastership in higher than that of the liquid will
Technical College, that he professor sink, walis those that are lighter But the University's graduates Dan": institution that would Control of the University! than the liquid will fonty Sher-will not merely be technical ex-make it possible for students in
ints in be in
hands of a governing mon explained.
perts. They will be experts with
or the elected
Brood Field
نہیں
04
any branch of technplogs.. to, 99* Council, eight will be ap-
a Broad understanding of human tain degrees, instead of merely a 10 One of the obstacion to the fairs. For the University will diploma After Mr. Heffron technique, he said, is the lack of be the first in the British. Com-
anecifie gravity. However, the Xin
facullen, compulsory Mr. splenusts have overcome the ob
courses stacle to a certain degree by
Poconomics and psychology. d fine, heavy solid with There
chepp, linotas Having the desired monwealth where there, will be M
had
pointed directly by the NEW
the proposal with the Minister for Education Twenty- hier of New South Wales, twa will be selected by the Min-
(now Governor-Ister from a panel, sub
submitted: by
in language, History, Gengthorised
crament
of Australia), his Gov- both Rouses of the NSW Parlia
him to goment technical education admin- Istrators, trade unions and em- from the Boyers organisation, the Sydney
University, Sen
Senate and
be .no narrow: nhed with the scheme.
the graduates The arrival
While the Brie particles are; insation, and
be
fitted to
suspension, the mixture; khown place in cold, #lendita
Bomb tests of Dr.
Was timely event of similar bodies.
題
other
the University The functions of the new Uni-
of the now this Dr. Compton, who varsity and
1804
of
an tolllum; Hats of gravity higher Although Than water and can be used to University of Technology...
the University mike gravity separation in the not yet been started, Classes 1 with other U.S. scientists, paid a Sydney Will not conflict, because sodio way sa, dan be accomplish began in March, 1940, in four on-short "courtesy" vinit tp. Australió) the University of Technology will ed by the use of heaty liquids" gineering
ovide chifferent course
- mechanical, gave yoluable adviço, and pro- prov
Lypes of profes Sherman at--Unitedi Fréss.
electrical, civil and mining
sional courses from, those avail- The University wa able to More lks, with Mr. Mokoll able at the University of Sydney. utilise the resources of the Syd and the then Vice-Chancellor of It will award it own degrees. ney Technical College for these basic courses. Lectures started
followed add, the Unian faith of technology which with, 40 men, all sponsored
A leaving Cer- versity of Technology, was allott-needs their employers. Now there are a tentative: site: A develop achter Including: an Eriglish and 150. The deputy director. Mr Wental counplly equivalent to Mathematics pass will be the
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