Page. D
THE CHINA MAIL, THURSDAY, FEBRUARY 3,~ 1945.
Inulux Glass Block flanel brings efficient lighting to this workmanlike office.
ENGINEERING PAGE
TENSILE STRENGTH OF CAST IRON TREBLED
The new nodúlaṛ cast iron, | in aluminium and other alloy die- produced in the laboratories of enstings.
Change to daylighting like this!ered brenny
INSULUX
GLASS BLOCK
CHANGE-OVER to Insulux Glam
A Block daylighting brings new
elliciency to nearly any type of business.
Insulux transmits light, distributes it, and spreads it evenly deep into ons for maximum benefits, Light can be channeled where it is needed
nint.
Your present windows and sash can enlly be replaced with lolux Glasy, Block pauchs. Check with us for details.
STOCKS AVAILABLE
Distributors:
Gourlie & Co. (H.K.) Ltd.
Union Bldg.
Tel. 31341
廠機電偉茂國英 METROPOLITAŃ-VICKERS ELECTRICAL
EXPORT CO., LTD.
ONE OF THE WORLD'S LEADING MANUFACTURERS OF
POWER GENERATING PLANT
HAVING SUPPLIED TO CHINA & HONG KONG
MORE THAN
250,000. K.V.A.
OF
TURBO-ALTERNATOR EQUIPMENT
THEIR TECHNICAL OFFICES AT HOLLAND HOUSE, HONG KONG
*?
SASSOON HOUSE, SHANGHAI
ARE PREPARED TO UNDERTAKE AND ADVISE
UPON ANY ELECTRICAL POWER SCHEMES
LARGE OR SMALL
Sole Distributors:
iron in a number of engineering applications. The new cast iron Is made by adding to the molten metal a small amount of corium, (Most lighter flints are 50 per cent, cerium).
the Britola Cast Iron Research "Vapour hunting" is another Association after long research; | process developed by this firm. has so many advantages that ex- in it fine abrasives in water or
It will,
creatu-choleston are discharged |
motifier to bo treated. This reduces time spent in polishing and eliminates it for rtain articles. In certain in- statices it is possible to plate di- rect on to a vapour-honed article, a technical achievement of con- The new process has increased siderable importance. Vapour the tensile strength of "east iron honing is used to remove burrs Three-fold. In Worki War-I ten-] from the eyes of needles, machine sile strengths of about 15 tons marks before polishing) on the square inets were achieve. By rotors of jet engipes--and in fact, World War II these had been im- muuchine marks from a variety of proved to about 25 tous a square | articles.
inch, Iron treated with eerium Prototype machines applying now gives up to 80 tormʼn square the new processes are being lest- ich and the process requires; ad by the Manchester firm of 1. materini charge in faundry R. J. Mchardson and Sons. In
stipement.
All the raw materials required for making cast iron are available in Hettain. The advantages of Increased tensile strength and the fuel that variable sections can be mare in une plece, and Jess machining
Recessary. Linesie
world.
will bertz-fit the whote
Moreover, where a quick ex- pansion of production is requir
view of the advances that seem likely In the technique custing the new processes seem to have grent possibilities.
New British
Publication
A Now British
publication,
Ed, foundries can provide it with- ¦ designed to meet the needs out the danger of bottlenecks at overseas buyers requiring in- which may arise when materials formation on new British farma have to be subjected to longerį trnelivery, is now being pre- prucesser such 49 extrusion, pared.
Called "British Form Me- pressing and forring
chanisati chanisation," it
link will be a for making engine crankshafts. If between engineers and farmers has been found necessary
throughout the world. It has mrve only three to ten per cent the approval
of of the Board
Cast Iron is now being used
-13
of the cast weight in faishing Trade, who have granted licence processes, whereas
mony for the paper which will allow forged steel shafts twa-thirds to
world wide distribution. Jorged
The first issue, which lo ex-
three-quarters of
the riginal
edi-
It
It le
A new development almed at reducing casultles on the road was demonstrated at Hayes, Middlesex, recently, a speaking device incorporated with traffic lights to address Instructions and warnings to pedestrians using the oroming. Expressions are recorded on a strip and mutmatically "played" when the red, amber and green tights change. Ministry of Transport officials, police and engineers today saw Inventor, A. Trayner, demonstrate the "talite-lights, which he has de- veloped in conjunction with the H.M.V. Gramophone Company. Photo shows Mr. A. Traynor, the inventor of the "talkie. lights", making an adjustment to the recording.
"New" Metals To Be
Developed In Australia
By CHARLES LYNCH
forgings have to be removed. The pected to be ready in the spring, Plans for the production of "new" metals in Aus- qualities of ordinary cast Iron will total คง pages on good will be further Improved by the quality paper including 16 use of the new nodular east iron.torial pages in two colours. Noditlar east iron is also easier will be the only paper especially to machine, strength for strength, designed for overseas in this so that saving short be possible field. It will be the companion in cutting tools, Urne, Inboue and journal to "Farm Mechanisation," overhends.
which has a wide circulation among farmers in Britain.
Toughening Metal Surface
Experimental work carried out by Tilghman's Palent Sand Blast Company, Manchester, Bagiand, may result in increasing the lite of machine parts tenfold. "Shot peening" the name of the process
which research is being carri- ed out, improves fatigue life by pelting and so toughening metal- Ile surfaces. The life of many working parts of cars can be ex- tened more than tenfald by the new process. Several manufac- turers are already shot peching such things as torsion bars,
ARNHOLD & COMPANY, LIMITED dynamo shufts, clutch springs and
Tel: 31957 & 30100,
For All...
erankshafts. has
that shot peening also saves time In polishing, and even dispenses: with it. One more recent appli- cation is in eliminating porosity
PAINTS, ENAMELS, VARNISHES
AND
HALL'S DISTEMPER
See the Syndicate
HALL'S DISTEMPER
THE PEKIN SYNDICATE LTD.
AB, Chater Boad
(The publication is to be pub- lished by Temple Press Ltd. Bowling Green Lane, London, E.C. 1).
tralia are beginning to take shape, particularly in the West of the continent, where a £A500,000 company will treat and export tantalite, beryl and other rare minerals.
take The new company will Plant for the treatment will] cost CAB0,000 and will be over leases held by Tantalite obtained in Australia and over-
Ltd. on the Pilbara feld, 80 gens countries by New Metals the West coast of Western miles Inland from Port Herland,
Pty. Ltd.
.Australia, and at Greenbushes, in the South of Western Australia.
·Plans
have Биел
ared for a prepared Western
Australion port yet to be selected for the treatment plant, and stocks of installte and beryl have been accumulated In the mines in readiness for the pro- cesting.
UNDER CONSTRUCTION.
A determined effort is being made by British .nir- craft manufacturers to supply the Forces and elvil com- panies with the finest possible aircraft they can produco, In this picture sircraft, of military and civil types are under construction at the De Havilland Aircraft works at Hatfield, Hertfordshire.
Suspension Bridge Test Models
Rosterito
It is reported that about 70 dif- ferent minerals are to be found on the Pilbarra fleld. Some of these tre not important commercially. The company's main interest is in tantalite and the caesium-bearing variety of beryl, which is known as rosterito, The dontalite is min-
ed from a pegmatite dyke, and
FELCO
CHAIN BLOCKS & HOISTS
1
STRENGTH
! combined with
LIGHTNESS & DURABILITY.
TRIPLE GEAR CHAIN BLOCKS
& TRAVELLING BLOCKS
ALSO
ROPE & PULLEY HOISTS
Sole Agents
SWIRE & MACLAINE LTD.
ENGINEERING DEPARTMENT ICONNAUGHT RD. C. TEL. 30331.
316 sizes.c
ENDLESS V-BELTS -
CAN 18
Replaced with only 4 sizes of Veelink
APB21
As many as 316 sixes of industrial and fractional endless V- bella can be replaced with only four reels of VeeLink, the link V-belt. From these handy reels required belt lengths are uncoupled, 'made endless and Installed. Belt re- quickly placements for any type drive are always on hand. Rapid turnover of VeeLink on reala eliminates #pare belt deterior- cords are simplified Standard reels Fold 100 feet, save stor- ation.. Complex, costly belt inventories are ended. Stock ro
150 SURCO.
Veelink goes on quickly and easily...lowers machine down- time. On drives with outboard bearings. It is installed with- out moving the motor or dismantling the machine. Savings 9/10 the cost of installing any other V-belt. on drives of this type have been estimated to run as high as
VeoLink--known
States has
VEELINK SCE
V-BELT
throughout the United
proven Itself In service on thousands upon thou- '- sands of drives. Wherever it is used higher levels of power trans-. [rmission, efficiency are attained..
Tested Proved * Adopted
by Industry
Augustable a 295 Length.
Adaplakte ih ane Daise
Stocks Of All Sizes Available
་
the beryl in the past has been Sole Agents - KIU FOONG TRADING CO.
regarded as a by product of the operation,
In
Tantalita is now being used
Industry to an Inoramming degree. It is valued for resist- ance to corrosion. Radar and electronic industries generally are big Lissra. Two tone of tantallte worth about 2A1,400 are required to produce one ton of tantalum, the price of which is often as high as 2A36,000. Beryllium alloys possers hard- nesa and strength, and beryllla is used for fuorescent lighting, and for television equipment. Ches- fum enters into the manufacture of photo electric material, and Im salis are used in analytical chemistry. It commands a fabu- |lquly high price.
Research workers of Britain's model began to "gallop." (The National Physical Laboratory are Tacoma. Bridge collapsed in a 42 investigating the reaction of gus- miles-an-hour wind in 1940). pension bridges when exposed to The suspension bridge to be sales by using a 52-feet model of built over the Bovern will be bridge in a wind tunel. These ablo to withetand galus up to experiments are to determine the 140 miles an hour, though winds design for the proposed bridges of such speeds have never been over the River Severn, which recorded in Britain. flows through Wnies and England Experiments have already prov- which will be the largest suspen-od that one of the causes of dis- sion, bridge in Europe, and the aster to suspension bridges. in the third largest in the world. practice of stiffening the roadway with solid girders running the The model is mounted on a whole length. The bridge is much turntable so that it can be sub-stronger when the solld girders jected to winds of 140 miles an are replaced by open latticed ones hour from ull quarters. It has Experiments have also shown been found that the construction that the effect of wind on a sus of the bridge decks, platform has pension bridge dock is analogous a great effect on stability.". A form) to its affect on an aircraft wing,« of deck similar to the one used for The result of the final tests with the Tacoma Bridge in the United the model is awaited with consi- States proved unstable in a 40 derable interest by engineers | miles-an-hour wind, in which the throughout the world.
K-E
KEUFFEL & ESSER CO.
AVAILABLE STOCKS
Telephone: 32460.
LEVELS
FORESTRY COMPASS'
DRAWING SETS
SLIDE RULES ⠀
SOLE AGENTS FOR HONG KONG AND SOUTH CHÍNA
for
SISSONS BROTHERS & CO., LTD.
FULL, ENGLAND
TRANSITS
STEEL TAPES TRACING PAPER
· AGENTS & DISTRIBUTORS.
Cheyne Bay Sands Exploitation of zircon-ratile- ilmenite bearing beach sands at Cheyne Bay, about 60 miles East of Albany, Western Australia, is another, new project.
?
The fact that the Chayne Day sands are reported to be chrome free will facilitate re- Govery of the ilmenite content.
· Ilmenite, used in, the manufao- ture of titanium, oxide, da an Important cănstituent of paints, and la Imported by Australis
•In large quantities from. Trá- Vandora, India,
Ilmenite is also found in the Pacifir beach sands of Eastern Queensland, and is exploited by
producing company.
20, Connaught Road, C.
If It's to be..
ARC WELDED
Tol. 28403
Sex that it's Imas Are WELDED!
Quasi-Arc A.C.
Welding Electrodes and Equipment
are available now Hong Kong⠀
BAKING BY · INFRA-RED RAYS · The possibility of baking bread by means of infra-red radiation, and by high frequency, heating, Is being investigated by the baking Industry in Sydney (Australia), where bakers have approached the Sydeny County Council oa da Dès Voeux Ed. C. the subject. Experimental "work carried out Ini The United
Blatar
of America; shows that there are yet many d dimetities to be over
come.
Some of the problems are lated to the rise of the lost during heating, and unaven bulgor which often lead to burning Samples produced show that there are no
ANDERSEN, MEYER & COMPANY, LTD.crust on the loaves: Infra-red
DAVID HOUSE
can be described simply as radie TEL: 280917ant heating which is governed by.
wave-length.
Sole Agents
GILMAN & COMPANY LTD.
ENGINEERING DEPARTMENT
2
Telephone 31140
HARRIMAN REALTY CO., LTD.
REAL ESTATE, DHOKERS AND VALUERS
OZTATCOME TOʻUB FOR ADVICE?
ALL TYPES INDUSTRIAL & DOMESTIC PROPERTIES
CARNEATHER ARE AVAILABIHASNAN
301 – Victory” House Wyalkan Kiryat," "Tel. 29002,
•