HONGKONG TELEGRAPH MOTORING SUPPLEMENT.
HOW TO GET GOOD SERVICE FROM
MICHELIN TYRES
Keep tyres pumped up to correct pressure for the load they have to carry. We can tell you
what this should be.
When tyres are under. inflated there is con- tinual internal friction between the foundation cord and the rubber," causing overheating of the tyre and consequent rapid deterioration.
Water can also enter causing rust, resulting eventually in the rims having sharp edges which cut the walls of the tyre near the bead.
Most cars in Hongkong run on under inflated
tyres with the above disastrous results.
Have your wheels examined front and rear for trueness and tracking alignment. If they are at fault in this respect the trend of the cover is subject to a grinding action which quickly destroys the cover.
Keep tyres free from oil and grease.
Start and stop gently and take corners slowly.
Lastly-buy MICHELIN tyres from us and follow the
above advice and tyre satisfaction is assured.
EUROPE-ASIA TRADING CO.
Telephone 3438.
China Building, Ist Floor.
"Yessir, We Take A Personal Interest In Every One of Them!"
"Whether it's your car, Mr. Smith's or Mr. Brown's, it gets the same good care and expert attention at our new concrete Main Garage and Service Station (Wong Nei Chung Road-Upper end of Race Course) that every car should have.
"We know from experience that it pays to overhaúl a machine regulary. Owners save money through our efficient garage service; and their cars are always bright-looking and full'er pep !
THE DRAGON MOTOR CAR CO., LTD.
Export and Constant European Supervision.
Telephone Central 8950.
ANTI-KNOCK GAS.
A. J. Allison, Service Manager.
J
increased mileage from its use, one liter of ethyl gas to 200 gal its distributors remark the gas,lons of gasoline.
SATURDAY, JUNE
1924.
INCREASING THE POWER.
THE "SUPER CHARGER ** EXPLAINED.
Several times during the past year or two I have pointed out the value of motor-car racing for improving the brood, sape Capt. E. de Normativille, in the, Daily! Chronicle. A visit to the famous Sunbeam works at Wolverlia mp- ton olloits another very good oxample of this not-by any-means- yet-finished utility,
You 800 the ongines which this company' aró building for their Grand Prix cars are fitted with Super Cliargors-and. I' hazard a Kuons you don't quito know the why and the wherefore thereof. So lot's consider the subject.
To start with, It is quile pose aible-I go no further-that this apparatus may later on bo fitted. to touring cars; though for that Виграва Wo havo Bill 80me inoro to learn. But if so, it will be one more example of Car Improvement directly traceable to such enterpiso in the motor racing field.
HIGH SPEED DIFFICULTIES, A super-chargor-is
& super charger! Not too bad as a special) brain effort that, is it? But you Interpret it thus. If your ongine connot take in enough charge by its existing means, you Can "Awitch on the super-charger-:
| and supor chargo,
As you know," the power output of your ongine is largely depon- dent on its spoed: up to point, anyhow. For maximum power (again up to a point) you want maximum speed.
Wo're having rather a lot of "up
NITRO WAS IN BATTERY.
A charge of nitroglycerine, oraftily connected into the ignition system of this automobile, sont wight persons to hospitals in Cleveland. Two of them, William O'Brien, vice president of the International Sheet Metal Workora' Union, and Joseph 'Noster, business agent for the Cleveland local, were expected to die. The explosion occurred in front of the Cleveland Labour Temple as O'Brion and his party were leaving a union meeting. Labour warfare is blamed by the police.
THE HORN SWITCH.
--that all-vital second or fraction ling in tone. But being a Daily of a second which we have re- Chronicle typo driver, there is a contly soon is the equivalent to second horn of quieter and more 44 "Of course, this chap's gone It hinges round the
foot in distanco at 30 m.p.li. pollte tone, not quite so-im. nood-in mediately accessible, but ready
IT MUST BE HANDY,
for all warning sounds which aro
mands. But in omorgency I can
to a point," aren't we? It's impotty! Fancy writing an article to portant, you sed. And it is the tell us how to press the button of any emergency of being able to limit mark at which the Speed is an electric horn!" Guess you'll save a fraction of a second and a extraneous to omergency do- such that the cylinders are unable probably think something like portion of that distance.
You see how I have it turn the thought of the need of a to fill themselves with a full that, says a Home writer, when I
in my car. That's warning sound into physical charge of gas-merely because of announce that we are going to hore the Spood.
study that vory simple little pro-; whore my right hand is on result-in 1-15th of a second.
the steering whool when I'm Can you It's a Daily Chronicle. With a highspood engine, there-blem. But let's get on with it.
Really, I've pulled your leg a driving, and there, you soo, is the to a Chronic Daily you can't. fore, you can reach a point in thebit, because my most important button of the electric horn--just Yet every one-fifth of a second Search for Speed whore the said| spoed not only gives no further point is rather the position of the half an inch from my hand. I you lose moans 9 feet of road advantage, but begins to cause a
button in relation to your hand 'can't miss "the button, and the | travol at only 39 m.p.h. Got me, falling off in power.
than the actual pressing of the time taken to translate thought Stove? It's rather important the said button.
into the actual pressing of the position of the button, isn't it? button is about 1-15th of a second. Just that, and that alone, may Naturally, that is the Safoty make all the difference between First horn, strident and compel an Incident and an Accident.
FORGED FEED NECESSARY. -
Let me give you an iden of how the charge has to "got a move
་ on" when an engine is running. at high spood. If the motor is turning at 5,000 r.p.m. (not alınar. mal for racing engines) the gap would have to attain a mean spead of about 250ft. par encond.
*
Do you "savvy" what "moan" spood is Put it thuswise. When the inlet valve is closed, you can rogard the gas for that particular cylinder as boing at rost. And from rest it has to acoelorato- when the valve opens-to its maximuin. The cross between the two is the moan.
Tho time available for the gas to accolerate from rost to maxi. mum to make' this average is ona quartor of the stroke of the piaton; so that the gas has to: get a move on "in one six hun- dredth part of a second; unless” my 'rithmatic's gone groggy.
But hoping for the best regard. ing the figures in this brief re- vlow (7 or any other rovue it is now seen why at such epooda the full charge of gas cannot get in useless it is forced in. And that is what the supor abarger doos.
WHAT IT IS AND HOW IT 'DOES IT.
There can bo different types of supercharging apparatus, and, of course, the basto ides is not now, though the Sunbeam Company have attained some improved results-especially at slow speeds
with her own design.
It in a mochanical biowor which, by a simple clutch, can be coupled up to the engine, and so forco a charge in under prassure when desired. In this way you can be sŭro of having a full charge of gas at any speed, or, is not intended to produco For protective purpose the alternatively, more gas than thore this result directly. Its purpose othyl gas is dyed rod, and is kept would be otherwise, if we assu WIDER AREA OF SALE.
is to mako up-bill driving and in plain view of the motorist. a normal epped already gives us other forms of matoring under · An early objection to this fuel à "full" chargo, " Successful use of ethyl gas, the difficulties easier, to eliminato was that it attacked the spark But it is at ordinary speeds that anti-knock fuel tried out in Ohio the knock in engines that result plug torminals and that the lead those experiments have proved by the General Motors Chemical from carbonization and pre-in the compound was poisonous. 80 amazing. At 2,000 r.p.m. the Corporation, has resulted in the ignition.
The first objection has hoon supor-chargor increases the power decision to. distribute this "on- Due to its use a driver is ablo, oliminated by adding what are of the engine by nearly 200 per orgisor" throughout the United to carry his spark advanced in called "halogen boaring com cont. States east of the Rocky Moun-hill climbing even with a badly pounds," which neutralize the It does not need abnormal tondoncy of the load oxides to powers of perspicacity to see a attack, the spark plug terminals, possible future for such apparatus They are ethylene bromide and on ordinary touring ears, does it? richlor-ethylone.
tains.
joarhozod ongina.
To the objection that the gas
In addition, the same corpora Bofors the war, the compound tion is soon to bring out a chomi-forming othyl gas used to be eal carbon remover which will quoted by the. German chemical cost the motorist only, 5 cents arms handling it at $580 a pound. cylinder and is said to produce Now its cost has boon reduced to is poisonous, the chemists of the
When driving in confusing distributing company produce traffia when the use of the car's $2. a pound. botter results than burning.
The new gas is distributed in results of experiments they con entire braking power may bo The carbon remover is being special oro and five liter came to ducted in which they found the nooded in an emergency bull up used now by taxicabs in Chicago. be placed into special mumps offect of inhaling the lead fumes the emergendy brako laver a _The_ethyl gas, or anti-knock connected with the gasoline to be negligible. Land deposits notch or two. In his position (t compound, has been under test in pump and sold at a differendo of wore found after the teste, but will be mors within your bar op. Ohio cities for several months. 3 cents more for a gallon of they wore only slight and The first notch or two Bixho Although three-fourths of Its fuel,. The mixture with the practically barmless, the eng average emergency brake marti Usofa are said to "have'onjoyed gasoline is made in proportion of Insare reports.
takes up alsok,
The importance of the point and it is of very rea! importance -all hangs on the value of Time
Comfort, Safety And Long Mileage
NE. reason why more and more motorists
is the comfort which the live, buoyant body of the tyre provides.
Another is the sense of security which comes. from the staunch resistance of the cross and square tread against skidding.
Comfort and security are definite Firestone advantages, added, always, to the economy of
Most Miles per Dollar
Firestone
The DRAGON MOTOR CAR CO., LTD.
26 Nathan Road, Kowloon
24 Bes Voeux Road, Hongkong
Show Room and Service Station (Happy Valley),
Kowloon 226 Central *482 Central 3950.
(A full range of Motor Car and Motor Cycle Tyres and Tuber carried-at-each of the shove addresse