Pare B
"THE CHINA MAIL, THURSDAY, MAY 6,-1948.
*-
GE.C.
THE GENERAL ELECTRIC CO. LTD., OF ENGLAND
ELECTRIC FANS
MADE IN ENGLAND
"LECTRIC fans to meet every requirement will be found in this E
comprehensive range of G.E.G. British-made quality units. Table, wall, ceiling and exhaust models in a wide variety of designs are included, available for D.C. or A.C. supplies, all designed and manufactured to the high standard of reliability always associated with G.E.C. products. "
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THE BRITISH GENERAL ELECTRIC CO. LTD. Queen's Building. Chater Road, Hong Kong REPRESENTING THE GENERAL "ELECTRIC CO. LTD., OF ENGLAND
L
QUALITY FITTING,
by
GIBBONS
GILMAN & COMPANY LTD.
-ENGINEERING DEPARTMENT-
Telephone 31146.
ENGINEERING PAGE Potentialities Of The British Gas Turbine Engine
by
which
bus
atomle gas turbine occupying less than but high-powered lorry to
withhi may be just made available for n quarter of her present boiler | engines
and engine room space.
grasp. There are some signs in this direction. "With the advent of the gus There is scarcely any phase, of the industry which will not In turbine," said Mr. Johnson, we time be affected by the neware within sight of a prime mover engine. And as the standard of applicable from high speed air- life depends largely un thecraft to electrical generation and
blast furnaces to cheapness of primary energy the from
So great are the "putentlalities lastrument of the British gas turbine en-energy gine that developments now un-humun use." der way may herald minor
a world industrial revolution.
This
significant forecast Vas made by Mr. George Strauss, British Minister of Supply, on Friday night at a London con-
Fas
ference organized by the Minis- whole population will benefit. For liquefaction."ontol gas turbine
or-
mines steel-
Two try of Supply in association with the gas turbine, it was explained, Power
are already on Jels (Research and Dela going to be the cheapest forin locomotives
wder for British railways. Other velopment) Limited.
power yet known. of industrial Power Jets, a wholly Govern- | Cheapness of operation can be ways in which the engine can ment-owned Company, is fcs- pensule for British gas turbine aged from the fact that a coal- be employed are; milfs, factories,
locomotive pumping plants, min burning gas turbine research and
and the extent of Its should be able to run at an works, warships, waterworks and heavy motor vehicles, of approximately possibly for operating cost
half that of the present sicam Gas turbine motorcars of the 10 Queen to 15 horsepower class arc not engine. Again, the liner Elizabeth could be driven by ayet in sight at a suitable price
achievements was described the first time at this conference. Britain has established a world lead in gas turbine research and 11s scientists are already on, the verge of producing designs for will bridge the units which
to atomic propulsion, Please of
atomic
energy
will be preceded by an age which the gas turbine will play a leading role," said Mr.-W. E. P. Johnson, Executive Director Power Jets.
#
When the gas turbine ts over- taken by the age of atomie en- ergy," he added; "there is very mints little doubt in technical
that the gas turbine will be the
Gunpowder As Machine Fuel
New, important developments
in the use of gunpowder x ma-
chipe fuel, were
demonstrated
recently by Imperial Chemical Industries at their Ardeer works
in
For more t Scotland.
e.than seven centuries since Genghis Khan in
Chinu First used gunpowder in
was generally agreed cannon, it
was an entirely that
Runpowder unsuitable substance for employ- ment in any internal combustion Recent experiments by engine. British scientists have proved that
Gunpowder his is not SD. this is
which produces volumes charge
of gus but does not get very het. The combustion is of a catalytic type and does not produce flame. The gasses from these power car- tridges may be produced in fraction of a second or over a period of several minutes. They -con--be-led-into-the-cylinder of
engine or
the
are
N
A dock built by Britain in Bombay intended for the use of the Royal Navy In Malta, was recently towed there by Admiralty tuge. It was so large (It can accommodate a 50,000 passage through ton ship) that it had to be cut in two for the Suez Canal. This plature shows the first half of the dock being warped through the Ei Firdan Swing bridge while a R.A.F. potter aircraft files over the top. The second half of the dock can be seen approaching in the distance.
New Electronic Developments
Of interest to technicians in in-
201
Its. Greatest Value The greatest value of the gas turbine engine, however, is the helds of freight and passen- ger shipping and the big nation- al and muntcipal undertakings.
One model will be shown at (the the British Industries Fair Dirmingham section) which cle- monstrates the appileation of the
to the Rax turbine
important manufacture of nliric acid with a possible cheapening of fertilisers
a great many other This exhibit was selected tis
example of the AP- typical plicability of this type of chine in process.
and
uses.
{L
mi
is not too visionary. to pre- diet that the production of cheap oxygen, from which a whole re- volution of industry may spring. ap-
will turn largely on the plication of Britain's current gus turbine research and develop- ment. Cheaper steel, cheaper avail- coke, cheaper and more able fertilisers, better transport are all targets, saith Mr. Johnson, which are within range of th gus turbine.
Infra-Red Lamp Development
the
the
A new Muzla infra-red lamp, now being produced by the Bri- tish Thomson-Houston Co., Ltd. is considered to be a major ad- vance in the science of infra-red drying and baking for industrial. purposes. The new inmp, which is rated at 250 W has a parabolle shaped bulb with a satin frosted Crown. The lower half of inside surface of the bulb is si- vered to form an internal reflec the Infri tor which concentrates the Infra- A me- red rays from the lamp. chanically attached (non-cernent) with- enables the lamp stand the severe heating condi- tions in an infra-red oven.. The new lamp is a self-contained unit which enables any form of external reflector to be dispensed with. The contour of the internak reffector is such that the beam has
cap
to
a narrow spread ot-not-more
than 120 and, by suitable spa! ing, it is easy to arrange a
of fittings so that the resultant energy field is evenly spread with- In narrow limits. Lamps can also ther be mounted much closer together The switch can be supplied in since there are no external re-
on to of a turbine or used direct- ly as
as a jet. Slow burning explosives, de- monstrated in Scotland recently, safety used by children can be for driving model aircraft, toy cars and speed boats. The gasses
dustry are a number of new inn- two forms either mounted on flectors to be accommodated and emitted from the cartridges eines which the firm Cinema-standard 19 Inch post office panel this,
higher through jets as in jet propulsion. Television
permits a turn, laboratory degree of concentration lamp Limited, of Lower for inclusion in the
where it small port-
Is London, S. E, 20, are oscilloscope or in a other patientions of slow burning]
desirable. The new
than the them are used for starting agri- tries Fair (London and Birming with any standard type-of-oseft-conthination of lamp and external cultural tractor engines which ham, May 3 to May 14). This loscope. may be obstinate after being ke detector for the detection_of left firm's industrial electronic meta! ferrous and
There
however, numerous
Is
In
explosives.. Cartridges filled with seller at the British Indus-able case, when it can be used considerably lighter
vul on cold"nights. The cartridge
driven rivet driver
can be used tramp metal, both
of non-ferrous, now includes auto-
by divers on the steel plates matic stabilising units. Not only TICATE
ships' bottoms. The diver holds
late does this dispense with the need the rivel-gun against the
plate for skilled operators but it also which may be up to one inch
that the apparatus is thick, and, on pulling the trigger, ensures
knocks the rivet through almost maintained at maximum operat-
Thus the needing sensitivity.
Instantaneously.
docking for repairs is eliminated. The power
for dry aften
The firm's demonstration oscil- loscope has been specially design-
cartridge can also lower under-ed for lecture purposes and In- carriages of aircraft, activate de-
misc.
for-extinguishing-tires-and cludes many novel features in-
üsseas
Concrete Flats
reflector and this makes eminently suitable for portable or banks. in such pin- transportable. ces as garages and repair shops
necessary where it may be bake relatively small ar
areas of maintain paintwork. In order to
to
Its initial efficiency, £1 -refector which is exposed to the atmos- phere must be given constant at- tention to prevent the tarnishing of its polished surface. flector. In the new lamp
is protected by the glass bulb which
TC
Dats on
the
to very little blackening and it maintains its initial degree of effi- ciency almost to the end of lamp: life.
The pre-fabrication of multi-is very easy to keep clean. Owing
to of for repairing users and cluding a 15 inch cathode ray storeyed buildings in concrete has the low temperature subject
In England. A bright range of application is wide, and tube, controls at rear, and side begun
Fat rear: block of 12 counell windows to show trace while it is too early to their full economic significance,
double beam switch, permitting Thames-side in London is several, clearly, have great pro-display of one trace, two traces first to be built of pre-cast.con- or the sum of the two traces erele framed, flats. For the time and-glare-removing filter.
being the new construction is only used for houses not higher of a single line building eight feat high and 18 feet wide; a roofed- The Industrial electronle batch-than three doors. Ing unit counts individuals arti- The London County Counell, in space of 100 feet by 100 feet, cies and makes them*up into however, is already considering or an L-shaped or U-shaped batches of pre-determined quan- Its use for blocks of flats equip-building, with a covered yard in
centre. Extensions lity. Capable of counting at a ped with lifts, and rising to Lon- the speed in excess of 1,000 per don's maximum allowable height readily be added when needed. second the instrument will have for buildings.
TURNER MANufacturing CO., LTD.
WOLVERHAMPTON
STATIONARY AND MARINE
: DIESEL ENGINES
— 15—30 H.P.
DIESEL POWER UNITS
DIESEL IRRIGATION PUMPING SETS
-Stocks Carried,
YU TUNG TAI LTD.
ENGINEERING-DEPT Exclusive Agents,
210, Queen's Building,t
Hong Kong
33145.
can
shows. be de-
Το clothe the skeleton, "materials an instant appeal wherever it is Mass production of pre-fabri- such as bricks, asbestos sheets,
farm buildings also or concrete can be used.Speci required to undertake the high caled farm speed packing of liems such as been arranged by Britain's Minis- men bulldings will be exhibited
nt- Britain's | tablets or pins.
Try of Agriculture. They are due during the summer... to make their first appearance on principal agricultural The channel electronle witch farms in May. Production will Later the scheme may made by Cinema Television be based largely on-the-so-of-veloped to provide further stan Limited comparos two separate salvaged steel from air-raid shel- dard components for row-houses wave forms on any standard ters. The standard components and other farm buildings, which single beam oscilloscope. Two can be used for the 'construction can be cheaply produced in' mass. amplifiers 'are electronically
switched to operate alternatively. In such a manner that two input signals appear to bo displayed simultaneously upon the cathode ray tube screen.
Every care has been taken to between prevent direct coupling the signals under investigation and intermodulation between the beams has been eliminated by channel of one the suppression While the other is in operation. Individual shift and gain controls are provided for each channel.
Three switching frequencies are provided so that any signal fr quency within the range 25 cycles to two megacycles can be clearly. presented.
Enlighten Your Night With
nionile..
UNION METAL WORKS LTD
17 Hayamally Building Tela. 20895, 20308.
"YORK"
REFRIGERATION AND
AIR CONDITIONING EQUIPMENT
THE JARDINE ENGINEERING
CORPORATION LTD.
1.
14-16 PEDDER STREET, HONG KONG,
Telephone 30311.
Farnsworth
ALL WAVE BAND SPREAD RADIOS Į 】
MODEL GT-669-WAZ
Thoroughly engineered to provide lasting satisfaction, this advanced receiver offers the exclusive new Farnsworth Band-O-Lite tuning dial. Taking all the guesswork out of station determination, the Band-O-Lite Dial completely illuminates the respective wave band selected, enabling the operator to arrive at the definite frequency shown at the intersection of the lighted band indicator and the station selectür. Five wave bands including standard, tropical and Cabinet styling has short wave reception. Band spread.
B
been patterned to complement the advanced chassiv design. FIVE WAVE BANDS FROM 535 to 1605 K.C. nud 3,0 to 23.0 M.C.
"EQUIPPED WITII - MULTI-TAT UNIVERSAL POWER - TRANSFORMER. FOR OPERATION ON A.C. 50 OR 60 CYCLES WITH, LINE VOLTAGE SELECTOR FOR CHOICE FROM 105-TO 250 VOLTAGES.
FARNS WORTH— KNOWN FOR TONE
THE SINCERE CO., LTD.
SOLE DISTRIBUTORS.
NEW Dictograph INTERCOM
MADE FOR
PRICED FOR
SMALL BUSINESS
NOW! A genuine Dictograph system for small busi nosa...a new electronic system designed and priced ⚫by DICTOGRAPHL to meet the specific needs of small
firms, stores, institutions, professional men! -
-Gives. yðu....voice-to-voice contact with amazing clarity on the new "VOICE-MIRROR" System. Provides aplit-second access to any one in your organization. Keeps people at their desks, helps everyone get more done in less time. Eaves' time; energy, money for you! Ask for a demonstration today to see how science and Dictograph can help your business at a modest cost!
Dictograph Electronic INTERCOM
The "VOICE-MIRROR!!" Syafam”, Everco
"HOLES AGENTS:+
E. OTT & CO LTD
French ́Bank Didas
Tel 12580.