1948-07-01 — Page 8

THE CHINA 'MAIL, THU RSDAY, JULY 1, 1048.

HENLEY CABLES

FAMOUS FOR OVER A CENTURY

Sole Agents:

THE JARDINE ENGINEERING

CORPORATION LTD.

14-14 PERDER STREET, HONG KONG.

TELEPHONE 30311.

The SINCERE Co Ltd.

ENGINEERING PAGE

ALUMINIUM ALLOYS FOR STRENGTH AND LIGHTNESS

THE LINCOLN` · SHIELD ARC WELDER'S

WELDING EQUIPMENT

FLEETWELD ELECTRODES

STOCKS CARRIED

BY.

ed during World War I proved By D. COURTNEY EMBLEY vantages of both wood and steel J. P. INGLIS & SONS LTD.

are for

Alumi-d the nurserous disposal

Aluminium niloy produced by an alloys now taken so much gh Duty Alloys Ltd., Slough, foy granted. Towards the close

are

Many of the light niloya evolv-

developed, combining all the adi

while themselves time and again in the

eliminating their diand- by

High-eflelency vantages.

pro- vigorous conditions imposed

or more brittle ma-conditions and their high natural, duction methods and the fine aircraft requirements, and, as de-corrosive

92*terial, could be better made in corrosion resistance and pleas- dimensional tolerances achieved veloped and improved in moro light alloy. Loss of weight with- ing appearance makes painting ensure trcent years, have established for out material loss of strength is, unnecessary

almost complete unts in normal athoformity of balance, making pos- themselves w place umong the

sheer goin to most manufacturers spheres. best known matèrinis for en- and non-corrosive

aible much higher running specris light alloys Accurate production control gineering and general utilitarian

for spinning, ereplug and doubl are as useful for inrge com- ensures complete uniformity of applications,

ing. This balance combined with plicated machine parts as they shape and size and each item is tightness also reduces operating When the world began to re- RAU

the simplest tools and therefore an exact fit. Because arm in 1935, the attention of the accessories of everyday life.

CORIS and vibration, Increases they are so light and strong, payload and generally Improves Aluminiums industry was focused

Prominent among present-day light alloy fittings are easy 10 On aircraft

performance. Such bobbins can pauction, which

of transport,

One larry can carry readily he dyed in a wide range would not have progressed with materials, but with a history

research ex- development and

suflelent rainwater Roods for of attractive colours which such strides if its engineers and leading over twenty years, is the 170 six-roomed houses withoật

For the determination of desipurrs had not had at their "Kiduminium” NR. series of being overloaded. Scaffolding denier by co-ordination of

100, in now being made in gauge with colour. Aluminium alloys and this 13

Many utensils and appliances of the war came the switch frain Bucks, one of the largest British another feld where the lightness previously manufactured in steel,

Fain concerns in the feid, manufae and resistance to corrosion gives cast-iron, internal combustion to jet-pro-turing light alleys in all cast and it a great advantage over steel. metals us brass, nickel-silver, etc. pulsion

engines, which was wrought forms. Each of the Many

manufacturers of pre-are now being made in quantity materially aided by the avail-Hiturinlum"-"nlloys has been cast concreta products have now from Aluminium ability of the R. R. series of al-

alloys. Exam- ley, designed in operate under developed to yield specifie quail-switched to the use of Aluminium

moulds, which are fast ples are components for pressure conkers, electric fres, washing great stress at elevated tempera- ties under conditions which vary alloy

according to applicution, but all superseding the types previously machines, and foed-manufactur- Such

retor are the common characteristics manufactured in timber or stealing accessories. Numerous Items componenta

of lightness combined with high While timber has the advantage of furniture are also being made drums, stator casings, impellers

strength and corrosion resistance, that with very little equipment in light alloy anti include both and turbine blading, are all speci- case of machining and fabrication, in the way of machinery, moulds upright and arm chairs in cust fied in these alloys, which are

can be made sultable to

chical wrought matecals, requirements, the life of a timber desks, tables, caseis, tea wagons, mouli seldom exceeds a hundred

etc, uses with ordinary conercle and In addition to the establ-berl fewer than ten uses can be ex-mechanical applications such as

where fondu 12 used. Today there is a wide and con- pected

or com-Maintenance charges on timber fons and connecting rods for cars {eylinder blocks, crankcases, pis- stuntly growing field applleations..

moulds are

are also very high wor-the merciul

necessitate employing

turra

15

also used for structural members and a bright, pleusunt.appearance, such 4 under-carriages. struts, control levers, ele.

Enormous Field

HONGKONG'S GREAT DEPARTMENT STORE contrnets

SOLE AGENTS

FOR

Farnsworth

RADIOS

KNOWN FOR TONE

Light Alloy House

some of

most

wand

And

such non-ferrous

Once released from and manufacturers of Alumiinium review. alloys In Britnin looked around them, studied the blue-prints of

cupboards many possible pence-time pro- ducts and wondered what to do and ingenious use of space and

Course, Is, of next. Their hesitation was due materials

well known. In addition, and of par- largely to the enormous fleld now ticular interest to bullders, is the open la them, for it would be

recent

of outside water- range of largely true to any that almost everything which has until now pipes, gutters and similar filings been made in heavier, more now being made in Aluminium

constraints, the which it may be worth whBe to niners who are today difficult to structural Items as door furniture, skilled motorcycles, light alloys are finding Increusing uses in such

alloys,

These cifer many ad- vontokes over, other materials. Their-low-weight, only one-third-

Bobbins And -Accessories-

The light alloy house with its set. Here again, the main ad-control levers, cyrie nuud motor- vantages of Aluminium alloys cycle frames. Jandlebars and planned kitchen unit, its modern built-in bathroom.

are their lightness and ability to wheel rims, and the present-day stand up to hard use over a long treads demanding lighters com- period, Such moulds are being bined with strength have been widely used in the manufacture well met by the cange of ma- of slabs, pillors and pre-stressed avellable.

terials concrete structures, piping, lump

While he alleys are in good standards, ele.

supply, particularly by compari- son with other materials, those instances where they are used) only on account of their_avall- ability are greatly outnumbered by those where the cholce has cusy to handle and simple to fit, For many years there has been been dietated by reason of the

for bobbing and acces-kumplex combination of with consequent savings in la- need G. and J. Weir Limited, of hour und transport overheads.sories with ₤1 lightness com- acteristics which they offer and} Catheart, Glasgow, Scotland, have This lightness is achieved with- parable to woot and the strength which are unclilainable in any received from the Netherlands out loss of girength, and risks of and wearing qualities of steel. other equivalent materials. Government a £300,000 order, to breakage okher in transit or on After exhaustive lests with the bu paid in United States dollars. site are reduced to a minimum: foremost rayon textile-and-wire- for the largest individual contract ever placed with the firm. One The auings are not subject to drawing interests, special high- freezing tensile light alloy reels have been bo fracture by section of the plant is to erected in Curaçao, and the other

ELECTRIC PLANT that of cast-iron, makes them

at Aruba, both Island siles of vast oll refineries off the north-west coast of Venezuela,

In the past 25 yours, Weirs have delivered and erected many plants in these islands and this important new contract 19 1 valuable tribute to Scottish en- gineering.

Practically all the work will bel earried out in the west of Ecot-[ lond. The bollers will be made by Babcock & Wilcox at Renfew and the structural engineering carried out by A. & J, Main & Company Limited at Possilpark.

The Ideal Light-Weight,

Lowest-priced & Reliable Projector

for use in.

HOME

• SCHOOLS

CHURCHES

OFFICES

• FACTORIES

• CLUBS

Dual Speed

for both silent

and sound

16 mm Filmy.

16 m.m. SOUND-ON-FILM

MOVIE - MITE PROJECTOR

Portable... Weighs only 27 lbs.. complete. Single case contains everything needed for operation. projector, speaker, table top screen, cords, take-up reel, and has extra space for lamp and Incidentals.

Movie-Mite is made of best quality dlo-cast and precision machined parts, &Implicity is the outstanding feature. In threading, only moving part need be operated. Show can be on screen in 3 minutes.

Sole

one

Reel capacity 2000 fl Fast power rewind...

adjustable tile... quickly adjusted framing device... utilizes a single, Inexpensive standard pro- Jestion lamp - for both picture, and sound projection, no separate exciter lamp necessary. Dorable ply- wood case, leatherette covered."

INSPECTION WELCOMED

STARLITE FILMS

Date STARLITE

...

Rm, 336, Wang Hing Bldg, 3rd Fl 10, Queen's R4, C. (Tel. 33035)

16 MM SOUND/SILENT FILMS ♣ BALE, RENTAL & EXCHANGE » CINE SERVÍCE

blows or

Laundering With Pressure Waves

Selentists

By MICHAEL GRANT-

in Britnin

char-

BIG CONTRACTS Two contracts for heavy ma. chinery valued ut approximately £300,000 have been placed by the USSR with un cagineering firm of Wolverhampton, England.

These contracts comprise the biggest singlo order ever received by the Company and it is bolicy- fed that each contract is the big-. gest over placed for this particu- lar. type, of. machinery.

The first contract 18-for--the 'supply of 50 plate binding ma- have finto pressure waves-in this case chines and the second is for 24 found a way of cleaning fabrics water waves. The transducer is so levellers. The total wolght of without soap or detergent. The small that it can be put in one's the 74 machines Involved is 1,220 | new process is also better than pocket. The experiments which tons.

ordinary washing since it elimin-led to the discovery of this sys-

grit.

CORNER CHATHAM and MATAUWEI RD, KOWLOON.

TEL NO. 58954. Representative For South, China and Hong Kong THE LINCOLN Electric Co.

AUSTRALIA. PTY. LTD.

GOODYEAR TRANSMISSION

RUBBER BELTING

VARIOUS SIZES

STOCK AVAILABLE

FOR PARTICULARS:

Apply to:

Messrs. D. ESSES,

4A Des Voeux Rd., C., 2nd f., Room No. 1.

or phone: 20090

GENERAL MOtors Corp.

DIESEL DIVISION

"71" SERIES

GENERATING SET..

INDUSTRIAL POWER

MARINE PROPULSION

GM

SGENERAL MOTORE

DIESEL

POWER

UNIT.

ENGINE.

Sole Distributore For- BOUTH CHIna, hong kONG & MACAD

JANAN DEVELOPMENT CORP.

Room 511, China Building, Queen's Road, C.

THE NEW ELECTRIC

ates the heavy wear In Inunder-tem were canled out at the WARDRO ing caused by abrasion by

Mullard Electric Research L♫- The new process uses faster-boratories, Salford, near Redhill, than-sound waves to de the Surrey, England. Two pieces of laundering. Very high-frequency a dirty laboratory overall were pressure waves are generated by used, one soaped and the other a transducer, an Instrument not. They were immersed In which converts clectrical energy separate tanks of water

transducer put into each tank. Both were clean after treatment, the only difference being that the soaped material was whiter than the unsoaped.

Fluorescent Lighting

and

The exact frequency of waves which must be used to ensure 100 per cent, dirt extraction

from materials without damaging the The excellent colour render-fabric has yet to be determined, ing of Mazda

fluorescent lamps It has been found by experiment is Anding new applications. In that if the power used is too particular, printing, photographic great, or the frequency too high, and milk testing processes have the fabrics themselves begin to benefited from the "daylight" break; but once this factor is Illumination 'provided by these known cleaning ef materials can Jemps. The Mazda mercury be undertaken with complete vapour electric discharge lamp confidence. The discovery is still has proved useful in photo-in the research slage, and no up- graphic printing and the produe- paratus has yet been made for tion of blue-printa, while another the market. When perfected, type of the sumo lamp is now the system will be first used only being used in colour photography, Jin laundries; pparatus for home fwashing will come at a Jaler The mokers, THE BYILIB! | stage, Thomson Houston Company Limited, have now developed in- dustrial and commercial fittings. so that any part of, a factory or offee can be suitably lighted. As a precautionary measure the latest fittings which provide under- "daylight" illumination

New Polish And Air Safety

*After investigation into the ground, have safety switches in the circuit. These switches are causes

air of raverat serious spring-loaded. Immediately the crashes it has been found that the lamp is fractured they open and aluminium structure of the air- isolate the fiting from the muins craft had corroded under an op-

supply. The recently developed parently intact layer of point. coal-face lightiny fitting may be As a result it was decided that moved forward as work at the all aircraft of the metal-clad coal-face progresses.

type had to be polished instead Fluorescent street lighting has of

painted. A new aluminium been installed by the British polish, developed by J. Goddard Thomson Houston Company and Sons Limited, Leicester, Eng- finlab Limited in many towns and cities land, produces a bright In Britain and there is an ever with almost negligible wear; it is increasing demand for such light-free from electrolytes (which ing overseas. N

polished

contribute to corrosion), and li The new Mazda 250 watt intra- also a ̈ degreasing agent, remov- red lamp is, the latest develop-| ing point and exhaust trails from ment in the application of in- the aluminium. „A fra-red radiation to industrial aluminium aircraft, too, is faster processes. As an innovation half than a painted one, and lighter of the bulb is conted with in a York aircraft, for example, aluminium. This obviates the by, the weight of two, passengers. need for an external reflector and A closer. Inspection of the stric- ensures the maximum concaii»¦ turn" is possible, and defects can tration of radiant energy, from be more easily detected before. the filament.

they, lead to plantes

COOLERATOR

Tel: 21003

Kitchen-Saver!

MORE SPACE INSIDE.

TAKES LESS OUTSIDE

14

cu. ft.

Impossible? Not at all! It's the result of this Coolerator model's compact, streamlined design. (Note its dimensions.) And thes has been accomplished without reducing the thickness of the insus Lasion.

More food storage space is what woman

wint más fa a new pliigerator,

But they run into the problem of frag the average seven or eight cu.ft. model into an slready crowded kitchen. It's too mide or too high.

To answer this, Coolernor engineere have developed a 74 cu. ft. electric refrige eraton the WILL be into amsall kitchens: and spartments. Complete in every despest, It has 291, builufa frozen food locker with a separate shelf for three ice cube stay, two special túli borile shelves, a big fruit and vegetabis crisp-o-liter, defrosting, try and an interior light. Opened by i hermetically sealed "Econ-O-Miner" frits-, ing whit, it has these nones Of Cold,

Truly, you'll get the MUST for your money when you buy Coolerator DR.778-

Spond less time shopping ..

MODEL DK-77

STOCKS AVAILABLE

THE PRICE NO HIGHER THAN AN ORDINARY REFRIGERATOR.

E. OTT

CO.,

LTD.

FRENCH DANK Building