1928-03-03 — Page 10

THE HONGKONG TELEGRAPH.

WHEN BETTER automobiles ARD BUILT, BUICK WILL BUILD THEM

From roof to basement" that's the way to buy a car

Buick welcomes this searching test

The man who buys a home goca over it thoroughly, from roof to basement, to make certain that it has the sound construction that means long and enduring service. That's the way to buy a home-- or a motor car. And that's the way to prove the fundamental su- periority of Buick for 1928. ----

terial used every nut and cotter pin-of the highest quality.

Go into every hidden detail. There you'll discover the secret of Buick's famous dependability and long life-sound, sturdy construction throughout.

Buick welcomes this searching test-and invites, critical com. Examine Buick carefully, part by parison. And Buick is willing to

bit of ma part. You'll find every

leave the decision to you! SEDANS G$1615 to $2000, COUPES GII010 to 082390.

DELIVERED.

り

SPORT MODELS G$1525 to G$2070.

BUICK 1928

THE DRAGON MOTOR CAR CO., LTD.

Tolephono Central 1246 or 1247.

33, WONG NI CHUNG ROAD............... HAPPY VALLEY.

LEAD THE WAY

ON A

B. S. A.

THE MACHINES THAT HAVE SCORED IN MANY

MOTOR CYCLE RELIABILITY TRIALS ALL OVER THE WORLD

New Models in Stock

For Particulars Apply to Sole Agents

THE SINCERE Co., Ltd.

MOTORING SUPPLEMENT. SATURDAY, MARCH 3, 1928.

WHY MEN LEAVE HOME!

A taxicab company in Chicago has engaged girl drivers for all its cabs. Here is one of the fair drivers putting on a new tyre. It should be noted that the front seat of a taxi, will accommodate only one person!

POWER LOSS BY

WASTED FUELS.

THAT FIRST

MILES.

500

"In the first place, lifting the old ban on Immediate, speed has In- |creased ten-fold the plenauro. of driving a new car. When a row owner gots into his Studebaker or Erskine ho can experience at onco the thrill of flashing performance without fear that he is injuring the motor. Ordinarily the owner of a new car has to plod through® 500 tedious miles at 20 or 25 miles an hour before he can really enjoy the! performance he has bought.

}

But there le a deeper signi- Acance to Studebaker's new policy

There are no better in

Hongkong for the money.

than just the pleasure of stepping FRANCIS AND BARNETT

on the accelerator and feeling the car jump ahead. The fact that Studebakers and Erskines can be called on to 'do their stuff' Immedi- ately on delivery is a high tribute to Studebaker manufacturing,

"Chock through the list of motor car manufacturers and you will act that the only makers who do not insist on a thorough breaking In period at low speed are manufḥetur: ers of the most expensive ^^cars, Rolls-Royce heads the list,you can diyo & Rolls at high speed the minate it leaves the factory:

"This is possible in Studebaker and Erskino cars as a result of precision workmanship, inspections, quality of materials and 'scasoning operations to which the motors are subjected.

"Seven hundred inspectors make

Cycles

From £38:0:0 up.

•

DOUGLAS E. W. From £59:0:0 up.

TRIUMPH MOTOR-

CYCLES

From £80:0:0 up.

19,000 inspections on Studebaker INDIAN MOTORCYCLES

cars before they are passed on to the purchaser. Sixteen hundred and ten mechanical operations are not allowed to vary more than one

one-thousandth of an inch, and 415 | operations are held to a tolérance of

one-half thousandth of an inch.

"Proving Ground and laboratory tests set up these standards, and in- spections at every turn ace that they! are rigidly upheld. But high engi-[ neering standards are not the whole story-the material must be of the very highest grade before it is evon accepted for Stude- baker manufacture. Studebaker pays a bonus to get extra high

"Finally the cars are given a thorough test and preliminary, Few announcements made by before

breaking in on dynamometers Roughly, only a quarter of the

being released for actual fuel value is used to drive motor car manufacturers within re-

delivery. This last test, with

the

Modern Engine Efficiency.

car.

No Need for Slow Speed on Studebakers:

quality in certain steels.

11

From G$245.00 up.

A.J.S. MOTORCYCLES From £61:0:0 ̧ up. ·

ACCESSORIES John Bull Line of Rubber goods, Complete

line of Accessories for

Cycles and Cars.

no less than three-cent years have mare significance the preceding inspections and ALEX. ROSS & CO. quarters, approximately, being to the motor car owner than the skilled workmanship, make cer lost in various ways. The actunt Studebaker's statement that all in that

every car leaving

percentage of useful and wasted Studebaker and Erskine models the factory can be driven 40 miles fuel varics with different designs, may be driven 40 miles an hour an hour immediately without in- but the 25 per cent. turned into the day, they are delivered. The

work may be taken as applying to situation is explained as follows: jury to the motor or chassis." the normal touring model car.

Before dealing with the why and wherefore of power losses, it is. necessary to understand where the waste occurs. Only about 30 per cent, of the heat value of the! fuel netually is used in the cylin-1 ders to force the platons down- warda. Of this 30 per cent., a further 5 per cent. is lost in bearing friction, In the inlet and exhaust systems, and in trans- mission. Thus the result is three. quarters waste, and one-quarter: of the fuel used.

The thormal effetency of an engine is the ratio of heat convert- ed into work to the heat supplied. Assuming that a gallon of petroil has a heat value of 144,300 British| thermal units, an engine which makes use of 43,290 Britiah thermal units out of every gallon; has a thermal efficiency of 30 per cent Up to date the maximum) thermal efficiency obtained រឹទ barely 40 per cent.; 30 per cent., however, is nearer the mark for ordinary production engines. Steam engines are even worse off in this respect, as their thermal jeffeleney may be set down at about 25 per cent.

Where does the 70 per cent. of the heat value of the fuel go? The water-jackets, and radiator absorb some 20 per cent, and 41 per cent. passes out In the exhaust gases. At first sight it would! appear that the cooling system is an expensive and unnecessary part of the engine if it causes such wastage, but, as in the case of the majority of engineering problems, it is a necessary compromise.

In the absence of direct air or water cooling, the heat generated in the cylinders would grow until the oil temperature rose to such a pitch that its lubricating value was destroyed; this, of course, would mean seizure and distor tion.

Mechanical efficiency is the ratio of energy given out to energy supplied. The average percentage hero is much greater than in the caso of thermal efficiency, being about 90 per cent, to 94 per cent. The 10 per cent, loss is caused by the friction of the pistons in the cylinders, the friction In the engine bearings, in the auxiliaries, In the gearbox, and in the rear axle. Friction increases with the engine speed: therefore a.study of mechanical efficiency is of great importance in connexion with light car engines, which run at com. paratively high rates of revolu tion.

Foremost, by reason of its re- lative size, is platon friction. This loss represents a quantity: aome four times greater than that of the friction of the engine bear. Ings; between 40 per cent, and 60 per cent of the entire friction In the engine takes place in tho cylindera. A large amount of the area of piston skirts is unneces- sary for taking wear, but heat conduction and the strength of the pleton 'demand the presence of an' | adequate' amount of metal.

(CHINA), LTD.

Prince's Building. 2nd Floor. Ice House Street Entrance. Showroom No. 1 Chater Room.

STOCKS CARRIED.-

The working efficiency of any Ford Van or Lorry is doubled whenever the Goodyear 30 x 3 Demountable Cushion Tyre is used, for it is

Puncture Proof Easy to Apply Long wearing Resilient.

GOOD YEAR

DISTRIBUTORS.

ALEX. ROSS & Co. (China), Ltd.

PRINCE'S BUILDING, HONGKONG.

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