1929-03-09 — Page 4

Why K "Plus" Fittings Fit

Instead of expecting your foot to conform to a stock. shaped shoe, the makers of K Shoes have provided a special range of fittings for feet of individual shape. They are called K "Plus" Fittings and they have heel parts one fitting narrower than the foreparts.

If your shoes seem too loose at the heel or too tight across the toes ask us to show you K "Plus" Fittings. There is a pair of K Shoes that will fit your feet to a nicety.

K Shoes

Black, Tan and

Patent Leather

•

819.50 $22.50 $25.00

Less 10% Discount for Cash

Mackintosh

MEN'S WEAR SPECIALISTS

ALEXANDRA BUILDING,

& C&LA

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King GeorgelV

OLD SCOTCH

HE WHISKY REL

OPENING AND CLOSING FACILITATED BY

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No corkscrew necessary

Possibility of leakage or contamination through faulty corks eliminated

THE DISTILLERS AGENCY. LTD.

SOLE AGENTS :

EDINBURGH

GANDE, PRICE & CO., LTD.

TIL (1, No. 185.

UNEQUALLED

TRADE Atos

MARK TERED.

RONG RONG

BOOT POLISH

SWATERPROOF FREE FRO

FOR GLACE KIA

One Touch of "NUGGET" Makes the whole Boot Shine

THE HONG KONG DAILY PRESS, SATURDAY, MARCH 9th,

COLD IN THE TROPICS.

LECTURE ON HARNESSING THE WEATHER.

FROF. C. A. MIDDLETON-SMITH AT ENGINEERS'

INSTITUTE.

H.E the Governor, Sir Cecil Clementi, K.C.M.G., LLP. (Hon. President), presided as a lecture entitled, "Cold in the Tropics; the Possibility of Manufactured Weather," delivered by Prof. C. A. Middleton Smith, MSc., MI. Mech. E., in the Institution of Ex- gineers and Shipbuilders of Hong Kong last evening.

Before is found for way back again to the cold factory through pipes, no longer a liquid but a gas, having been boiled off by the heat from our rooms, it would have done all that we asked of it. It would have abstracted the heat from our rooms and manufactured the weather we desire

It should be explained that except for leakages, the ammonia would be used over and over again. It would enter the house in pipes as a liquid, at atmospheric temperature and about 180 lbs, pressure; and leave it as a gas at a much lower pressure, and temperature. enterprising capitalist could use this

It is obvious that such a system would have a better chance where there" would be a fairly steady de- mand for about the same supply of liquid ammonia, in other words the The Speaker said that civilisation the sea and ice-shipa came along.

cold producer, each day of the was the use of efficient intellectual side to discharge great blocks of iceren. In Hong Kong there would methods for the reduction of the into godowns. The godowns have be no demand on many days of the forces of Nature to the service of been pulled down but it is said that

year Dan. "It is," he said, "the sub-people still occasionally shiver in stitution of intellectual and moral Ice House Street. (Laughter.) agencies for physical force in the

Fans not Scientific. struggle with the animate and in-

The only general method of cool animats in Nature.

Middleton Smith continueding people in Hong Kong is by iana. There are upwards of 40,000 The first requisite for efficient in electric fans in Hong Kong. Fans tellectual work is freedom from

are better than nothing, but they mental discomfort. When the dweller in the tropics bails the first a poor substitute for manufae

system in a block of flats. The cold hut that abeltered him from the glare of the sun, and kept out)

production machine could liquify the pestilent insects, be, secured for him. It was in 1552 that Kelvin sugarmonia in the basement. helf better conditions for intellectual ['gested a mechanical method of pro- Manufactured Weather. efforts. It is obvious that every|ducing cold and in 1862 Kirk made It would cost about $95,000 for device that reduces mental distress, the model of an air machine. One the requisite machinery to be pur- from the reinforced concrete house of Kirk's earliest machines worked chased and installed in Hong Kong. to the mosquito curtain, also im in an ice factory in Hong Kong and With electric power at five cents a proves human welfare in the tropics, produced 4 lbs. of ice for 1 lo. of unit it might cost as much as $1,500. The advantages of manufactured coal. It was very bulky,

a year to run the machinery, mak weather in Hong Kong to the in- tellectual worker once experienced, will never be willingly, surrender ed,

tured weather.

***Gold Producers.

An

we increase the best in it. If we and repairs. It might cost less. If we compress a gas in a machineing an allowance for depreciation expand a gas we decrease the heat Only experiments with local con in it. The air and other cooling ditions can decide the actual cost. « machines work that way..

of coal.

A

For a small drawing room in a house the cost would be less, es pecially if the house were designed to accommodate these ideas. bouse is more difficult affair bei cause of the sub-division into rooms and the many doors.

manufacture of more or less ideal We have considered the cost of weather, viz., air at seventy degrees F. temperature and humidity 40. We should benefit from any conditioning of the air; a drop in ten degrees temperature and less humidity helps

great deal: »

.

Artificial Lighting and Snow. Where there was ancient civilisa

It has been mentioned that the tion, life, in the main features, first ice machine in Hong Kong pro differed not a great deal for many duced 4 lbs. of ice per lb. of coal. many centuries, said the lecturer. There have been such improvements Men and women toiled, using in ice-making plants and in the pro- muscular energy to do the work of duction of power that for a plant the world. Now-a-days the heat for making ice under modern con- plied by coal and oil supplies theditions we can obtain better results energy needed for transport, manu- than 7 lbs. of ice for one pound facturing and other purposes. the last two or three centuriés man

Gold in the House. has acquired a wider knowledge of the world and of the larger universe, So far as the ordinary householder than in all the sixty of a hun-is concerned it is not so much the dred centuries preceding. The old progress in connection with the local civilisations were static. The civili. central coal production factory that In the following case a generous sation of to-day is dynamic,

has been noticed, although engin- allowance has been made for heat It is nearly ninety years ago that leers know of the cost reductions leakage from outside into the room. the first effort to make the barren in the ice and cold storage depôts. The walls are not reckoned to be island, known as Hong Kong, into It is the household cold production insulated. Calculations show that a trading centre was made. The machine, the Kelvinator, the Frigi-it should be possible to keep an problems associated with the task daire and the Electrolux plants, ordinary room at a temperature tea of making it more healthy, pro- that interest us. We have now degrees below the outside air tem .sperous, nad therefore more reached that stage where there areperature, and at humidity 20 below pleasant, were and are problems of in this Colony about 300 cold pro- the outside air humidity with the applied science. We can, of course, duction machines at work in houses following equipment. There would purchase machine-made ioe. That and clubs. And that is only the be two small freezing plants each is an advantage that dates back beginning,

using a horse power motor and only about fifty years. It is some thing, but no means all that satisfies the scientist. It is possible, to-day, to produce manufactured weather. Then why is it not done in Hong Kong!

Invantion and Expense.. The problem that always faces the practical engineer is that of expense but we may at lek be hopeful that the cost of manufactured weather will be greatly reduced in the not too distant future. If the cost worked out at say $700 a year, many people would be willing to pay that sum for such ̋a boon. "It will certainly come in time.

Let it be said at once that these suitable expansion coils, also a small machines cannot possibly pre-small fan for taking air out of the duce cold as economically as the room and passing some of it over large machines in the central cold the coils before sending it back to factory; but householders are well them. A certain amount of fresh pleased with them. It is certain air should be supplied from outside that at zo very distant date they and this would have to be cooled will become as common a fitting in and de-humidified before being well regulated household as a gas mixed with the air that has been cooker or fa eléctric fre. There withdraw from the room and cool- are

improvement which, ed. At the most only about ten per when they come about, will place cent, outside air has to be so treat- these machines within the reach of fed.

much greater number of house- The actual cost of installing such holders

three

One is a reduction in the price of electrical energy.

The second improvement will be a reduction in the initial cost of the cold production machine.

$8,000. During the summer months plant in Hong Kong is about

it would probably have to work ten hours a day; the cost for electric power on this assumption being $1 8200 year for electric power; prob Fa day. It would possibly cost about

ably less.

In order to obtain the air that is necessary for ideal weather con ditions we must. by mechanical

The third improvement is in con methods control four factors We must regulate (1) Humidity, (2) nection with the machine itself. Temperature, (3) Movement, or at Bome entirely new principle will be circulation, (<) Purity, Of these evolved to make is possible to pro- Such & plant is fitted with ther- factors by far the most important duce moru.cold for the same expen-mostat arrangements so that the from the point of view of personal diare of power or heat. There is machine stops when the tempera comfort and human efficiency in the demand and the supply will Hong Kong, is humidity. That is come.

the factor that makes our summer? As a mere speculation let us sag climate so trying, for the air com seat a tarbine type of compressor, tains a great deal of moisture in or heat pump, run at high speed by suspension. We have to get rid of an electric motor.

the air..

y

ture of the room falls below that fixed The machine automatically starts up when the temperature of the room is above that for which the thermostat is fixed.

renability.

Some of these auto- matic plants have been in operation for several years without being

touched

In these daya A very remarkable feature of this that excessive moisture in order to nobody is satisfied with reciprocat machinery is the reliability of ope make the atmosphere more pleasing engines and pumps. Many ex-ration. Motor-car engines are, now ant. We can only do that by pump. Deriments are being made with thedits, very reliable. They cannot ing heat out of the moist air; then turbine, type of heat pump and however, be compared with these the vapour condenses into water there is reason to believe that they automatic cold producing plants for and no longer remains suspended in will be successful.

Ice Without a Machine. There is a very great range of A most remarkable stage in cold temperature of the air on this production is the new Elec- planet Our bodies are sta tem-trolux plant. There is no moving these idchines are already being The proof of the statement that perature of about 98° F. Accord mechanism, whatever. An electric ing to the air temperature and the heater or a gas flame supplies the Appreciated in Hong Kong is the clothes we wear so do we feel hot heat needed to raise the tempera the very unhygienic ice bor. They number that have recently replaced and cold.

ture (and so the pressure) of the Experiments have shown that the heat carrier which, in this case, is have always given satisfaction.

If additional proof were needed human machine works at its best, ammonia. Ordinary tap-water, or is most efficient, when the tempera sea water, carries away the heat it is found in the sales record of ture of the air is 70° F. and the at that stage of the proceedings domestic electric refrigerators in humidity is forty. With humidity at when it is required to pump out America. In 1914 the number was forty ench cubic foot of air con-heat from the heat carrier (am 600; in. 1918 it was 1,400; in 1922 it tains 3.2 grains of moisture. Un-monia) after which the ammonia is was 10,000; in 1928-it was 250,000 fortunately in Hong Kong duting allowed to expand and cold is at and in 1828 it was 550,000! As the summer the air is usually at once produced.

many as 750,000 machines of one temperature of about 86 F. and This clever invention is very make have been sold in various each cubic foot of air may contain simple. At first sight it appears countries. There are now at least 44 much as 12 grains of moisture in that at last we have all that is re- twenty different types of such suspension (humidity 100)...

quired to produce cold in the houses machines. The only way that we can change so that we can always in summer that atmosphere into the ideal at have ideal atmosphere of air tem- mosphere of 70° F. and humidity | pérature 70° F. and humidity: 40.00 forty, is by pumping out a consider Unfortunately this apparatus uses able amount of heat from each cubio quite a lot of heat for the produc foot of air. Most of the work done | tion of cold. There is also the cost would be expended in pumping out of cooling water. The other house- heat from the water vapour, so that hold cold prodiiters, the Frigidaire about nine grains of water per cubic and the Kelvinator, use a current Sam Ka West and his Harmony foot of air would condense into of air to cool the heat carrier, so Trio open a abort season at the water

there is no expendo of water. Queen's Theatre to-morrow,

The Although the temperature of the We may be permitted to imagine young Hawaiian made his first body is about 08°F. the body owner 'a' supply of liquid ammonia pumped public appearance at Proctors likes best to be in air at about | through pipes to our houses from Theatre, New York early in 1928. 70: F. humidity 40. The body pro the cold factory. It is easier to The concert was followed by im- dices heat, and air at 70° F. and imagine than was the vision of a mediate booking all over America. humidity, carries the heat away; supply of coal-gas, electric power, Miss Aida Kawakami,, a clever from the body in comfort, and telephones to houses a hundred, Japarésé dancer, will also appear

Fifty or sixty years ago the only yests ago. We could collect the in a number of "classical dances method of obtaining coal in Hong money for the scheme to-morrow if The fasture film is Byf Chaplin's Kong was by importing ice from the we could get a sufficient number of latest comedy'

Start? Seats Far North Where Ice House Street people to guarantee a sufficient con, may be Eecked in advance at the now in there was a small inlet of sumption of cold from the ammonia. theatre.

QUEEN'S THEATRE.

DOUBLE ATTRACTION

TO-MORROW.

"BY APPOINTMENT.

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TEL. No. 1733,

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