1949-10-08 — Page 8

THE CHINA MAIL, SATURDAY, OCTOBER 1943.

The Standard-of-the-World-

Cadillac

1949

ENGINEERING LEADERSHIP

AMERICA'S NEWEST

FINEST

MOTOR CAR ENGINE

Effortless Driving with G.M. Hydra-Matic Drive."

CALL FOR A DEMONSTRATION:~~

FAR EAST MOTORS LIMITED.

26, Nathan Road.

KOWLOON. Tels. 56849 & 57250

Switch to

Auto-Lite

EVERY TIME I FIT Curds

marltiple seg-

!

ment Piston Ringa

know I'm well on the

way to winning an. other satisfied custom- er. The reason that Cords give thou sands of extra miles of service and here's why. Cords have special fitxible face which shapes to the cylinder wall. They

deal with bore wear and ovality. they eliminate blow-by, they improve compres sion and they control eil consumption. Whe- ther the engine is new.

rebored or warn you can make it a better engine with Cords.

Spark Plugs

For maximum petrol economy... Switch to Auto-Lite. Money cannot buy a better Spark Plug

Sole Agents:

JEBSEN & CO.,

12 Pedder St Tel 26661.

I get more

satisfied

customers

with CORDS

CORDS Piston Rings

For further information please apply

SOLE AGENTS: --

CHINA MOTOR AGENCIES & SALES CO.

Stock Exchange Building, Telephone: 25247.

SPECIAL OFFER

A LIMITED QUANTITY OF TRUCK & CAR TYRES

MANUFACTURED FROM NATURAL RUBBER BY: THE NORTH BRITISH RUBBER CO., LTD. At Greatly Reduced Prices, -Subject to sale of our present stock.

DAVIE, BOAG & CO., LTD.

-Chartered Bank Building,

MOTORING NEWS AND VIEWS

This stubby, tough looking little car was on show at a recent Trades - Fair

at Zapres Yugoslavia. It has a five horse power engine, and is capable of about 60 kilometres an hour. The car is strictly for summer ure since it is made without a hood. Buyers from many foreign countries attended the fair. There were, however, no representatives of the East Europe Com- inform countries-Associated Press Photo,

Modern Trends In Car Design

Modern trends in car fashion are aggravating the problems of the body engineer, and British designers have additional problems consequent upon the degree of economy which they must exercise in the use of expensive tools.

These are two of the points put forward in a paper

.

structure.

read before the Institution of Mechanical En-attacking part of the leased! gineers recently by Mr. E.S. White, Technical Welded Integration Engineer, British Light Steel Pressings, Ltd. Considering the question of the anderframe of the body or car, Dealing with the tread and cause it was a debatable point Mr. White said that the two effect of style, the author stated whether the stylist achieved any methods most likely to be used in that this probably had the greatest greater beauty of line the body the future were the complete and inluence on all subsequent con- draughtsman with his long exfication of the body and, chassis siderations and, to a large extent, perience of carve development, and frame by welding, or the use of governed the basic engineering in the future the stylists' activities Cooling and assembling problems might be confined to interior at two channel members, one on the tings and outside decorative work, body and the other on the chassis,

which could be bolted together.

+

TAS all- prospective

of a modern motor body.

Style or appearance important from the customer's point of view.

Before the advent of the stylist, body design was generally con- fined to that part of the sheet metalwork behind the dash.

Material Choice

The author dealt next with

materials, which he placed second only in importance to styling.

300 1b, assuming the steel weight size the saving in weight would be

You Should Know This!

HINTS ON FUEL ECONOMY

MILES PER GALLON

Much can be done by the driver to "stretch" his petrol, for it is not generally recognised that by driving technique alone fuel con- sumption for a 10 b.p. car can vary as much as, from 22 to 40 miles per gallon.

SPEED

*

Speed is one of the most im- portant factors. Generally steady 30 to 35 mph. is the most economical. Variations of speed are wasteful and should be as gradual as possible, particularly on deceleration, for on sudden release of the accelerator at high road speed an excessive quantity of rich mixture is drawn from the carburettor.

Sustained high speed, ie. 50 m.p.h. and over, rapidly increases while the rate of consumption, violent acceleration as, for ex. ample, to beat the "other fellow" from traffic lights-is even more wasteful.

HILLS

On moderate gradients it is better. to maintain a steady speed on top than to change into a low- ex gear-unless the engine labours. If a change is needed use the minimum throttle opening that enables the climb to be made comfortably with the engine un- der as light a load as possible. Avoid re-starting on severe gra- dients. Take advantage of de- scents by coasting in neutral, but remember you must then rely entirely on the brakes for re-

tardation or in an emergency and hence keep the speed well under contral Use the free wheel, when Etted, when the same warn- ing as to brakes applies. TYRE PRESSURES

Soft tyres cause considerable drag which absorbs engine power. Be meticulous in checking and correcting pressures. UPPER CYLINDER LUBRICANT This is beneficial in that it starting from cold and provides keeps

the engine free, facilitates lubrication for the valve guides, it also shows up leaks in the fuel system.

(From The Hong Kong Auto- mobile Association's Handbook

Istorists).

The former method gare maxi- "For arum rigidity, but here was likely to be amplification of the road and mechanical sounds in the body

shell.

а

To Be Continued

Grease. And Oil Stains

Clean the spot by rubbing with cloth moistened with good quality fabric cleaner.

a

The method of bolting two chan- There were, he said, four possi-net sections together was a happy ble choices, namely, deep-drawing compromise, particularly for the Furthermore, the design of this auto-body steel, work-hardening large car, where silence was of structure tended to be controlled aluminium alloys, commercial pure greater importance.

aluminium and aluminium alloy With the recent export drive it by the body engineering staf

had been found necessary to ship although as designs progressed amenable to heat treatment,

a greater percentage of body see there was undoubtedly a definite | In his opinion a three per cent tions in the semi-knocked-down or trend towards reducing wind

Never my petrol as a cleaning magnesium alloy was adopting

the most completely knocked-down form. resistance and

agent because it is inflammable. more satisfactory substitute for steel

Assembly, therefore, had to be when rubbed briskly over cloth flowing curves, thus giving safety and he estimated that by using it considered not only from home or fabric the, friction generated and easy cleaning.

in place of steel a 50 per cent plant considerations but also from will cause it to ignite. The stylist today had continued saving, in weight would resalt, the overseas angle, often in com-

Acids will eat through cloth in this trend, but the danger ? For a popular body of 10 hp,paratively ill-equipped plants.

short time. Treat upholstery introducing changes purely for

corrosion

Finally, the author dealt with immediately as soon as you notice fashion or wales reasons must-be

prevention, which the presence of acids on the car controlled if progress was to con-

hitherto has been completely seats Use household ammonia life by pouring it on the spot and let tinue in a practical manner.

This would, however, entail has to be extended to ten or even

satisfactory when the car's

it soak for a minute or two. Wash material cost increase "and s fifteen years.

it off with a clean wet cloth. Styling Must Compromise further increase would have to be

Carpet Cleaning Use Probably, he thought, the best brush to remove locse dirt. For 2 stiff faced, as a greater number of method was the dip-Bonderising mudspots use a damp cloth pressings would have to be pro- or phosphate coating of the com

plete body shell, but this entailed securing of effective strength, it was the author's opinion that a latively high.

Despite the difficulties, however, a large plant and the cost was re- economy in tooling, satisfactory

car could be successfully produced Assembly and welding conditions in this aluminium alloy at a cost for both hope and export, and figure very little higher than that advantage to the user in respect of steel, provided of reduced asset of the car being easy to clean and service.

was 600 10.

In the author's opinion body styling must always compromise i duced. between the dictates of fashion, the

The tendency to eliminate run- ning boards and wings was likely to endure.

This trend had probably given the engineers on the construction and fooling sides their greatest problem.

fa) that a considerably greater time allowance was given to the engineering and design sections to employ the alloy to the max- irmum efficiency:

(b) that with the decreased weight the power unit, gear box, back axle, wheels, tyres, suspension and other details could be made

The question of the "break-up"maller; and

of the main pressings and panels (c) that some sacrifice in ap

had had to be studied much more pearance would be allowed. closely in order to avoid extremely difficult pressings using the very limit of the ductility of the metal employed, with consequent exces- sive press shop scrap, in addition to difficult and costly assembly operations.

The final assembly, with the securing of satisfactory clearances between wings, bonnet, became a |difficult problems.

The fumre trend, Mr. White thought, would probably be to merge the wings into the body shell and to incorporate them as part of the body pressings.

There were, said the author. two basic forms of construction, stressed frame covered by panels. and a stressed skin with reinforce- meats. These two forms could be applied either to provide separate body frame independent of the chassis frame or to forma single unit with the chassis frame, thereby giving an underframe or what was commonly known as x unitary construction bas

The stressed frame method was favoured by some of the smaller quantity producers because it could be built up largely from standard the rolled type.

comply, this would greatly! sections of either the tubalar o

the damage and spares problem, but it would seem that, accidental damage would have to be treated as repair, and not as a replacement, as has been Pest practice.

With clever designing it was trulte possible that this merging of the wings into the body panels and structure might reduce the weight of the vehicle as these malts might be used to contribute to the overall strength of the structure.

In sich a ease the body engineer ing section would have to assume greater responsibility for the lines and general designing in order that the integral wings might provide added strength.

This should not have any detri- mental effect oneppearance be-

A further advantage was that be readily inspected. The draw- the completely welded frame could

backs of his type of construction and the overall weight was Ukely were that it would be more costly. to be greater,

The stressed skin or panel con- struction was more favourable for quantity-produced all-metal bodies, tillsation of outer panel surfaces, because it ensured the maximu

metal work which did not con thereby almost eliminating any

structure tribute to the strength of the

Probably the main drawback of this method was that where ex- posed panels became damaged or corrosion met in, the elements "were

Washing of car. Use clean water with sponge, rub lightly. For drying use soft damp chamois. It will remove all the dip or spray-Bonderise the more ber, hard rubbing will wear out A less expensive method was to dirt without creasing it. Remem- vulnerable units-The Autocar.

the polish surprisingly fast,

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B.E Goodrich

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Hongkong & Shapghai Bank Building.

Tel. 28021.

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