1924-05-17 — Page 7

CON MTAD ECOD UTZI VEN

MOTORING

SUPPLEMENT

OF

THE HONGKONG TELEGRAPH. SATURDAY, the 17th, May, 1924

(Being the Official Orgun of the Hongkong Aufűmöbile Association),

LOCAL MOTOR NOTES & NEWS

The past week' kaa boon an publication of the complote now extromely interesting one for Regulations, of which the now! Incal motorists.. First and registration foos are only a part,` foremost thore has boon the in being eagerly looked forward discussion regarding the restric- to. They havo yot to be tians in jamuing learners' submitted to the Governor-in- liconcos,, this question having Council for approval, but it is boon raised by what appeared in hoped that, they will be passed in this column last week. The time to permit of the proposed police authorities have since registration focs, duo to be ronow- Kivon figures showing howed in Juno, coming into force at great LL Bumber of learnors' once. liconces bas boon insuod

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since the beginning of the We uro in receipt of informa- your-figures which would be tion from a correspondent at impressive wore it also known Pakhoi, to the effect that the how many of such licences are motor road between Pakhoi and Cutill in forea to-day. It must be Limchew City, mentioned a short enfo to assume that out of the time ago, has now been complet- 900 odd Hiconcas issued only a ad, and that passonger traffic comparatively small proportion between the two places com- of holders are actually learning menced on the 7th, of May. Our to drive. It is misleading to think correspondert adds:Four that over 800 mon ara to-day motor vehicles of a well known posнossed of the facilities to make have arrived from Hong- learn. The truth of the mat kung, and others are to follow. ter is that -E groat many Should the poinoers of this under- Chinoso have taken out taking, which is a purely native learners' licences and have never concern, manage it rightly, there used them, which makos us is a bright future for rond motor think that it would be no harm to vehicles in this part of the coun- inguo learners' Heoncos to try. The surrounding country for all applicants because only those over fifty milos inland is almost possossing learning facilities, io, perfectly flat. All inland water-1 the use of a car in which to learn, ways are too shallow for boat. would be able to ho on the roads traffic, except for boats of the at any one time. Thero is only a very smallest type. The com. limited number of motor vehicles potition this new motor vehicle in the Colony from to bo used for traffic will encounter is the slow. Touraing purposos and to refuse s moving chair, wheelbarrow, learners' licence to any applicant bullock waggon, and small boat. muight result in dopriving The advertised fares on the cars the very man who is forlaro not higher than manpower unate enough_to_bava_learning charges. Any_kind_of_motor- facilities, Wo aro convinced vehicle will not suit that the Traffic Dapartment is traffic, owing to tho sooking to act in the very best struction of the roads. A interests of motoring, but in this special, light pussonger bus is case caution has, perhaps, been what is wanted, and there] allowed to outweigh other and are of the type that have been more desirable considerations.

imported. The Chinese are looking forward to extend theso opera tiens far into the interior, in various directions, but there developments will depend on the prosperity and management of the present undertaking."

Whilst on the subject of the Traffic Department, a word of ap- preciation is due to its officers for the great amount of work they quietly perform on behalf of motorists. It is uasy to criticise

bat oven when bona fide criticism News, such

to

this

con-

S the above,

is called for, one should not inevitably loads one to think of forgat that motoring in this the time when China's ronda Colony owas a great deal to the will be such, as to open up the Department in charge of it. As country to automobile transport, enormous amount of routine work and it takes but very little im- is, dono daily and that work agination

pietura tho aver growing, whilst motorista tremendous business that would know of the courtesy with which bo open in this part of the world the Department is ready to listen to manufacturers of motor cars.: to complaints or suggestions. It As yot, the importation of cars would be a pity, if haenuse of into China te but a tithe of what, public discussion, the Department it will ons day be, but how long over had the impression that motorists were unmindful of what they owe

"

LAST SUNDAY'S ACCIDENT.

This picture shows how one of the now Buicks, bolng driven round the Island last Sunday afternoon, came to grief at Doap Water Bay bridge. The front of car is soon hanging over a 15 ft. drop.

À PERILOUS TRIP.

Two Harley-Davidson enthusiasts ride their machine and 'sido ear right up to the brink of Kilauea, 'the world-famous volcano of Hawaii:

WHAT CARS SHOULD DO.

ABOUT SKIDDING.

INTERESTING DISCUSSION OF SOME FACTS.

and brako band. If the cor It seems reasonable, therefore has attained a high speed to say that when this type and tho brakes aro applied equipment comes into. wider m so hard that the wheels look, the danger of ekidding will the energy of motion can no reduced many fold, and the mar longor bo dissipated through the ber of accidents due to skiddo We have received from the kinotia friction botwoon the will be even smaller than durin Standard Oll Company an extra-brake band and the drum. At the past. moly interesting article, propurod this point wo have tho force

This same question has be by the Company's Road Materials which tends to onuso sliding pre-approached from a different and Laboratory, discussing the causes sont in large amount and by the automobile manufactur of skidding and how it may bothe onorgy of motion will who equipa his cars with the ge provented. The article is too havo to ba dissipated by balloon tyres.

lengthy for us to reproduce in the friction betwoon tyro and one issue. The first part will be pavement as the car slidus. I

The balloon tyra has agrest

found holow, next Saturday's appears therefore that the ability enlarged diameter and is design Motoring Supplement containing of a car's brakes to dissipate the and constructed so as to he the romaining portion --- • energy' of motion through kinetic great strength under low

The sensation experienced by friction between brake band and Inflation. the occupants of a skidding auto-drum, has a very important rola- The balloon tyres have me mobile is so unusual and the lion to skidding,

surfaco in contact with the ro rosult of a skid are very often Recent developments in auto: than the ordinary tyre, and th so spectacular, that the impres. motive practice indicato that this aro inflated to very low pr elon prevails in some quarters particular point has been given sures. This increased aro that skidding is the cause of a very wareful consideration. A contact gives more traction great number of automobile ac number of the new models of consequently reduces the darts cidents. As a matter of fact, a cars have been equipped with of skidding. Almost wery.drf careful tabulation of the causes brakes on all four wheels, instead is familiar with the expedien of automobile accidents in various of brakes on the two rear wheels partially deflating his tyres localities in California shows that only. It is very avident that order to give incronso dtracti

ato a very small number, about 2.5 with brakes on four wheels, the before climbing a per cent during 1922, were due to energy of motion can be dissipator

- anif in traversing skidding. Statistics compiled by cd twice as rapidly as with brakes roads. This same idea t the National Bureau of Casualty on two wheels, if the samo pres- into practice in balloon tyres aI and Surety Underwriters of Now sure is applied in both cases. careful exporiments made York show about 3.4 per sent. of follows that with this increased automobile manufacturers accidents due to skidding, and an ability to dissipate the energy of dicate that the balloon tyrs Im analysis of auto accidentsin Town motion through kinetic friction great value in the prevention during 1922 made by the High- the danger of skidding is corres-skidding, way Commission shows that 3,9 pondingly reduced.

Another refinement in, auton per cent of the accidents were. Practical demonstrations of the obile doeign which tends to r duo to kidding.

following naturo have been duce the danger of skidding Skidding occurs when an au-made-

the attention paid to the baland tomobile loses its grip upon the A section of street was made ing of the weight of the car nos surface with which its wheels are slippery by application of some to prevent the building up in contact. This grip is obtained foreign substance, and a car complicated forces undor drivi ly the friction between the tyro equipped with four wheel brakes conditions. There has been of the automobile and the road was driven toward this section at noticeable improvement in th suaface, or between the tyre and a spord of about 30 miles per feature of automobile constras any coating which may be on the hour. When the car reached the tion in the past and the carefu road surface.

lippery street the gears were attention given to the design a

A caroful consideration of

The study of the causes of throw cut and tho brakes autos today indicates that furthe skidding is cssentially a study of applied. The car stopped within improvements in stability wi forces. The force which tends to ehort distance with no appreci- increased realetunce to skiddin cause on auto wheel to slide along able sideways motion and with will be achieved in the future a road surface is opposed by tho no sliding of the wheels, force of friction between the tyre The brakes on the front wheels foregoing facts shows that recèm and the suface. As long as the were then disconnected and the improvemonis in automobile de sliding forco does not exceed this car was again driven toward the sign and construction have frictional force, the wheel will slippery street at the same speed duced the danger of skiddin not slide. As soon as the sliding us before. The gears were thrown many fold, and as these features force becomes greater than the out and the brakes applied as in are improved and refined Bla The car future years, the dangor will force of friction, however, the the preceding caso. whool will slide and we bave the kidded completely around in the undoubtedly be even more great- effect of skidding. If the surface street before stopping.

ly reduced. on which the whoal moves is a clean section of highway. 'thon tho frictional force opposing slid- ing is the friction between tyro and payoment, but if the surfaco is a highway section on which some force is the material such as dirt, oil or grease is present thon the frictional force is the friction between the tyre and the thin layer of foreign material on the pavement.

to

It follows therefor that in order prevent skidding, we must regulate these two forces so that the force which tends to cause sliding never exceeds the forca of friction betwoon the tyre and pavomment. This can be accom- plished practically in two general ways,fret, by using cara in driving and various mechanical | m.p.gappliances, thus reducing to a

room, in which to oporate the car. It has been suggested that when the now registrations are being, that day is distant is a problem in

Inguod, as they will be noxt forecasting we would rather not attempt. If a motor road can be

month, owners must specify the

Going on a basis of horse-power built from Pakhoi to Linchow

number of seats alongside" the

it has hoon found that an average there is not, the slightest reason.

driver and that it be made an Regarding the proposed now why one could not be built from

offence for any driver to allow open touring car should give u}- motor registration fees, published Hongkong to Canton, provided

more than the proper number of fair roads the following potrai der average touring conditions on in the Hongkong Telegraph on the neighbouring province wero

people to sit besido him. In some Monday, there appears to be

consumptions:- such way 4, vory roal danger | posoofully governed and the very gonoral satisfaction at freedom of the road assured. It the discrimination proposed to be in lack of that assurance that is made in favour of vehicles fitted hindering China's road develop- with pneumatic lyros. That

mont as a wholo and thore will heavy vehicles with solid tyres be needed the axorcise of much should boar a more proportionate patience before the day comes 'oost"of road up-koop than now is freely admitted and welcomed.when communications in China

would be overcome.

7 h.p. car should do 50 10 h.p. 12 h.p. 15 h.p.

It is pleasing to notice that good progress is being made 20 h.p. " with the work of improving the 30 h.p surface of main roads in the Colony, especially in the case of

the Pokfulum -Road and Stubbs are in any way comparable to

2

The suggested seale for private those of clvilised countries. cars spoms reasonable, enough, but an anomaly has boor pointed

Our attention has been drawa out in the case of motor cycloa fitted with sidecars, inasmuch as during the past wook to the fact It was proposed that they should that lorrios, using Stubbs' Road pay $24 por annum as against to the Peak, are often over $16 by a light car. We understand orowded with workmen riding that a suggestion has been put a passengers, who not only sit forward that cyplos with sidecars on whatever cargo the truck is should be asked to pay 816-carrying at the time but who crowd which is only 84 more than solo into the deivor's seat Our in- motor oylas, and if that suggoa. formant states that he has soon tion is adopted wo think that manyas four and five workmon owners of sidecare, would have sitting up along side the driver, little cause for complaint. The giving the latter much too little

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35:

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38-40 m-p«g* m.p.g. 25-28 m.p.g• 20-22 m.p.g

17-19 m.p.g".

40 h.p.

,, 15-16.m.p.g Those figures are taken as a Road. In the latter case the general average over a largo num- spood with which the work is bor of different types and makes being carried out is particularly of cars. Much of course doponds gratifying, having regard to on the individual car, the skill of tho longthy poriod during the driver, the condition of the which the road has boon engine and transmission units, other than in first class and similar factors, but on the condition. Between the sports average the above, will be found field of the Hongkong University not far removed from what, a car and the Dairy Farm,, on the should do. Generally speaking Pokfulam Road. A good deal of an ingresne of shout 15. par cont work has been done during the would result if the car had to do past few weeks and thoro le now a fair amount of town work, and good mad, all the way to about a 10 par dent. Increase 1216 Repulse Bay.

had a closed body:type

minimum the force which tends to cause sliding, and, second,—by providing tyres and pavements which show a high co-efficient of friction between their surfaces- of contact

In this connection it is interest- ing to consider the origin of the forco which tends to causo slid ing.Power in applied to the wheels of a machinos through tho drive shaft and the axles. This power tends to cause the wheels to revolve and move the dar for ward. In stopping the car, the power is shut off and the brakes. are applied. The brakes are ap- plied in order to dissipato, the energy of motion, which the car has gained while moving his la accomplished by tho kinatio the brake drum

GARGOYLE

Mobiloil

Make the chart your guide

Is being used exclusively

by Lieut. D'Oisy on his

flight to the Far East.

Also exclusively used on

the American and Portu-

guese flights.

mg và Na Mg 14 apareguntas TNTUK

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