1948-11-25 — Page 8

Page 0 13.

THE CHINA MAIL, THURSDAY, NOVEMBER 25, 1948.

TH

WHEREVER

WATER

MEETS

CONCRETE

USE

SIKA

WATERPROOFING

COMPOUND

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pare- filler, Siko increases adhesion, prevents sweating. corrosion, etc., and helps control selling time!

SIKA-PROOF YOUR CEMENT!

Sole Agent:-

GILMAN & COMPANY LIMITED

ENGINEERING DEPARTMENT

da Des Varux Rd. C.

Telephone 31140

BRC

FABRIC

ELECTRICALLY CROSS-WELDED

STEEL WIRE MESH

IN ROLLS OR SHEETS

FOR CONCRETE REINFORCEMENT

Stock Avaliable

DAVIE, BOAG & CO., LTD.

Chartered Bank Bldg.

Agents for:-

Tel. 20117

BRITISH REINFORCED CONCRETE ENG. CO.,LTD.

How

ENGINEERING PAGE THESE STUDENTS WORK IN A SUPERSONIC ATMOSPHERE

By WILLIAM HOLT

The first school of gas turbine technology. to

be established in Britain—and it is believed to be the first in the world—stands on an his- toric site at Lutterworth, near Rugby, England: It is where Air Commodore Sir Frank Whittle made his first jet engine. It has grown out of Whittle's experimental work and the teaching of the technical knowledge when the experience was passed on to the aero-engine industry during World War 11.

sco

The school was opened for Service personnel. You can still

machine-gun the mounting on the roof, and the tripwires and barbed wire en- tanglements that were put up, in 1940 when Britain's Home Guard stood ready to defend the birthplace of the first jel engine. The teachers A1 the schoul worked with Whittle while he

was developing his engines.

this fee is 16 gulness

week. Accomodation and all mbals are provided In the school'e hostel for an Inclusive charge of thres pounds ten shillings per week. The catering is ok- cellent but there is an almost Spartan simplicity In the life at the school,

The dormitory is the old draw- Ing-office. There is room only for |troin 20 to 30 students at a time at the school present. While plans are now being made to ex- and the school, the Chief In- does not want to lose the Intimate Mr. W. R. Thomson, atmosphere which fostera free building where the first jet discussion and personal contact.

Among the school buildings is what was formerly an old iron the actual

foundry. That

$1

gine was made and tested, New bricks, bullt in, aliow where the engine exhausts reut

structor,

The acro-engine and the Indus- out their irial .courses

both cover basic jela. Nearby is a new brick building which was the first ever of gas turbines and they include theory and the practical testing bail for the manufacture of gas lectures by specialists on a wide turbines.

Open To All

variety

of correlated subjects such as fuel technology, combus- tion components and metallurgy. Engines of various manufacturers The school has been organised are there complete and in parts, by Power Jetz

(Research and such as the Rolls-Royce Nene and development) Ltd.. to promote the Derwent 1. and the Derwent fundumental knowledge in de V., the de Havilland Goblin and | sign and operation of gas turbing the Rolls-Royce Trent,

engines and to stimulate demand for gas turbine technology among potential users.

It is open to them and take them to pieces. The Some of the engines have been students from any country. courses last from Two to three sectioned so that they can be weeks.

studied more easily. There charts on the walls and turbine dises against them.

Students

examine and

lest

Supersonic Sound

are

At present they are designed for graduate engineers, but it is proposed to arrange practical courses for testers, engineers and operators. Some of the students

In the eating cell I watched how at the school will manufac-students stort up a Rolls-Royce ture these engines. Many of the Trent engine. It is an engine students who attend the school that has actually flown. In one are themselves teachers, so this chamber is the jet engine with touching of gas turbine techno- its exhaust passing through one logy is having a snowball effect of the outside walls, and in the and is helping to speed up the other chamber a battery of con- growth of the new gas turbine frol panels with dials. industry.

Two pupile at the School of Gay Turbine Technology at Lutterworth, near Rugby, Warwick, study a skeleton oiling dystem on a real gas turbine engine. This school, the only one of its kind in the world, senka to foster the growth of a gas turbine industry in Britain, by providing engineers with an opportunity to study the gas turbine and Its Industrial ap. plications.

Land installation Marine in- stallation. Locomotive install- tions. Centrifugal compressors. Axial flow compressora.

Tur- bines. Combustion. General review of mechanical desini. Materials used in gas turbine manufacture. Vixits are made to the manufacturing depart- ments and the experimental departments of the National Gas Turbine Establishments at Whetstone, Middlesex,

Special Knowledge

Mechanised

Rubber

Production

By Michael Grant

Many

In addition to its own expert teachers, the school receives the support of outside lecturers with special knowledge and experi- ence. I attended a lecture given there by R.H.H. Barr, of Centrax think that mechanisation in rubber technologists

Power Units Ltd., who lectured the production and treatment on Gas Turbines for Road Trans- of natural rubber has not kept Race with that in other. in- dustries and suggest that the

part

His tem designed and built the gas turbine engine for road preparation of rubber should transport that was shown at be completely reorganised. the British industries Fair

or

prepared

with simple

platonless engine without clutch Today, amoled sheets of rub-

gear box. He had

come ber, are from straight

ble workshop equipment and in consequence. whera he is developing this the rubber growing Industry has engine for use in automobiles, ended to develop as a multitude

of small units. motor trucks and buses, Ha

Liquid rubber Intex, tapped from the trees, is demit with such problems coagulated, passed through rolls the mass-production of diaca which press, and turbine blades of '■

out most of the small enough for an automabllo (and sent to the smoke house.

moisture and then cut to length engine.

size

The engine he is working en

This rather primitive process

is only 17 inches in diameter requires a good deal of labour-

Students ean observe the en- The school Im non-profit-gine through a glass panel In the making, but also non-loss sound-proot room and read the contracting. The students pay dials; they can go into the engine' a small tuition fee to cover the chamber while the engine is run cost of running it. At present ning, but they are advised to and three feet long to the end and labour bas become less wear ear protectors inside there of the driving rod. He said that plentiful land more expensive. as the noise sounds like the high the bearings on this read engine

Moreover, synthetic rubber is pitched, shrill whistle In the had been tested as long as 800 works, in active competition with produced in large, mechanised. teeth of a typhoon and you ex-hours at 40,000 revolutions per natural rubber. perience a strange sensation In minute. They were then taken the middle of it that strikes deep out, examined, and put back into the brain and heart. It is again as they were all right. the supersonic sound that is felt They had also been up to 80,000 rather than heard.

revolutions per minute without any apparent defect.

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YU TUNG TAI LTD.,

Engineering Dept.

218, Queon's Building, Telophone: 33145 Distributors for Hong Kong and China.

The instructors tail how In the early days while they were

_

Problem Solution

A process which seeks to solve problema of mechanisation by continuous production of thin In that quiet spot far out in rubber Alms directly from the testing jet engines the noise the English countryside, the latex, is described in Rubber caused them to have "auper technology of these new engines Developments, September, 1946,

anic sickness." feel miserable and depressed being laid for industrial develop-Ruildings, Mark Lane, London, it made them is being taught and the basis is published by the British Rubber Development Board, of Market for periods of as long as three ments which may change our EC. 3.

days on end.

Outside the testing cell, the blast of the jet has torn a long trench in the earth and blown off the leaves of the neighbouring trees. What was most surpris- ing to me was the absence of vibration with the engine roing at full blast with the turbine. making 14,000 revolutions per minute. 1 balanced a penny on

lives.

A rubber belt passes Arst through a bath of coagulant, then through a bath of latex and picks: up a thin film of it. The coagu- iant partially solidifies the Intex: film picked up by the belt. Be- fore the belt re-enters the bath, of coagulant, to repeat the series of operations, the partially soll- com-died rubber latex is ended off

Shops That Come To You

Many new types, of

the engine casing. Even when merical vehicle were displayed the belt, the engine was revved up to 16, at an exhibition recently, held 000 revolutions per minute the in penny did not fall off,

Course Syllabus:

London. Among the 450 types on view some equipped; as mobilo green-grocers' shops with shutters, sunblinds, potato) hoppers and fruit baskets.

Hero Is an outline of the There was a mobile butcher's syllabus of a three weeks Indus- shop with meat rails, counter trial Gas Turbine Course:

and chopping block.

ESC

SHEFFIELD

Steel Tools,

Drills, Taps,

Dies.

Flies, Hacksaw Blades, Lathe Tools.

Stocks held in Hong Kong.

ENGLISH STEEL CORPORATION LTD.

SOLE AGENTS:

SWIRE & MACLAINE LTD.

ENGINEERING DEPARTMENT

1.CONNAUGHT RD. C. TEL. 30331,

A.P.B.14.

Chubb & Sons Lock & Safe Co., Ltd.

|

Available cz stock or illustrated.

Sole 'Agents:

THE JARDINE ENGINEERING CORPORATION LTD.

14-16 PEDDER STREET, HONG KONG. TELEPHONE 30311.

HEATING

· VENTILATION

AIR-CONDITIONING

CARTER & SUTTON)

It then passes over a roller. into a washing tank, whence 238-A, It passes into a drying cham. bar. This is maintained at 4 temperatura of some 70 degrees | Centigrade by hot air and smoke from smouldering wood. The film, one-fiftieth of an inch thick, requires about ten, mla- utes to try.

THEORY, Symbols and units. Basic thermodynamics leading Another vehicle contained a to cycle performance and basic mobile conteen with klichen design. Temperature entropy (complete with hot and cold diagrams for calculation of on-water, gas stove and sink), din-tight eylinder, or is folded fat

gine performance. Specific and fuel calculations.

a

The dry film, after it emerges fro the drying chamber, It wrapped automatically into ting room seating 10; hat andrer.

for pressing into a cubical Dry rubber films, requisites of a fully equipped one-fiftieth of an Inch thick and 20 Inches wido, can be produced at the rate of 600 pounds

Theory

coat racks, hand bosiri and other

canteon.

Other novelties

Included

Da

mobile ainamas, and a trolley-made.

hour. Wider sheets can also be

bus with a special compart ment for perambulators. There

·was alıb a single deck trolley», bus seating_286

of flow applied to Norales, blades, jets and pipes. Th of centrifugal and axlol dow compressors and turbines. Aç- tual performance calculations from; the test of an engine. Cycle calculations with Inter-| coolers, rebent, and heat ex- changers. Consideration of well- known industrial cycles. Part load performance.

Technical Improvements ut PRACTICAL Test procedure value to vehicle end. Instrumentation. Testing drivers were shown on many operators and of an engine in the school that stands, notably the ing house Workshop processes double-deck bus used in gas turbine manufac

Daimler chassis with

steering, gest- power-assisted

TUBE MAKES EGGS PENCILS EXPLODE

·ture. The precision method of change, brakes, and doors; a two-/netron, radiatos at a billion cycles

blade manufanture, men

stroke diesel engine, and. SPECIALIST.

SUBJECTS.

hydraulically, operated tallboard Fuel technolog,Eliquid fuels), which also acts as a leading lift, Pulverised fuels. Burners and moving up and down vertically combustion equipment. Bears from ground level to the floor] ings and lubrication.-Gearing of the forry. Bpk.

A new vacuum tube, the mag- per recond, as much energy the biggest broadcasting stations.

Hong Kong & Shanghai

Bank Building.

Tel. 28904,

FOR

H. W. SUTTON,

Manager.

QUALITY-DURABILITY-DESIGN

INSTALL

"Standard"

PLUMBING FIXTURES

WRITE FOR OUN HOME BOOKLET

AGENTS

landing nearby fever and heat

Waves from it give people ANDERSEN, MEYER & COMPANY LTD. eggs and lead pencils so fast that they explode with 'à loud report."^"

DAVID HOUSE ·

TELI 28091.