*
DUNLOP.
Wherever you travel you can get the tyre by which all other tyres are judged. Remember DUNLOP
is more than a name-it's a reputation - It stands for perfection in Tyre manufacture".
Be Sure It Says
MADE IN ENGLAND
Од Your Tyres.
Local Distributors:
HONGKONG HOTEL
113]
GARAGE.
Tel. C. 4753.
THE HONGKONG DAILY PRESS, WEDNESDAY, MAY 19TH, 1926
Local Branch Office:
16a, Des Vœux Road C.
Tel. C. 4554.
What happens to your Car when it's in the Garage ?
The Garage for your Car or Motor Bicycle. THE DURO MOTOR Co.
The only garage
Give your
132,
[A.P.D.]
CARS
-in Kowloon
under constant
. European
Supervision.
Car the Best Accomodation
Nathan
Road.
SINCER 10/26 H.P.
Tel. K226
CARS
BRITISH THROUGHOUT.
AGENTS:-
GILMAN & Co., Ltd.
44. Des Vox Road.
GASHIT
SPECIAL OFFER AT AR EDUCED PRICE.
3 HP. MOTOR CYCLE
$350.00
STOCK AND SPARE PARTS ON HAND. EASY TERMS CAN BE ARKANGED. LEYSECO CHINA CO., LTD.
PHONE: C. 1221.
1143
4TH FLOOR, BAsk or Castor BUILDING,
. Drs Vaux ROAD CENTRAL."
SOCONY
MOTOR OILS -
AND
GASOLINE
[...]
Motoring Notes:
ין
A Weekly
Review dealing with matters of interest to all® local motorists.
[BY AN OWNER DRIVER.1
It is difficult for the amateur motorist to understand why,, in the advertise.) ments of some fears, there appear two figures, of very different value, for the horse-power.
Thus one well-known English munker advertises the 18/00 hip, ear and änother
توا
The Horse Power Problem,
The 16/60 HP. Car.
THE TWO FIGURES.
To return to a consideration of the advertisement of the 18/60 hp, car. The figure 18 represents the tax hip. dr., you must pay £16 a year tax.
'The figure 260 is the hp that the makers guaranter. They say We have tested engines of this iype at the works! The American ears, as n general rule, and we guarantee to show you records seem to be more powerful than British; thin such engines will develop 40 hp." curs, if you compare the advertised; Then why do the Treasury se horse-powers,
Are they really more formula that gives 16 p. when the powerful?
actual text proves that the engine can develop 60 h.p. ?
the 14:45 h.. car.
The difficulty commenced with the British Treasury officials. They decided that the simplest and the fairest method of taxing motor-cars was by grading the tax according to the horse-power of the car. The existing rule is that the car owner pay £1 per h.p. per annum.
Thus a car that is rated at 11.4 kp, pays a tax of Ere per annum, while a 13.5 hp. car pays £14 per annum.
Before the introduction of this method of taxation a tax was levied on petrol. The theory was that the petrol consump tion was a fair indication of the amount
First of all the Treasury wanted simplicity. The great art of taxation is to collect the money with as little cost of collection' as possible.
If the Treasury had to send a revenue
ROAD IMPROVEMENTS. ·
+
It is most disappointing to notice that the local Government has practically held up the various schemes for road impror: ments in this Colony which have been suggestre.
[
The portion of Garden Road near. In the Helena May and all of the upper part of the road ean he easily widened. There are no buildings to be removed. Six or eten ten feet off the Botanical Gardens would make a great deal of difference to the anxieties, of, motorists. It would make practically un difference to the area of the gardens or to the comfort of these who use the gardens.
Let s urge our good friends in the Government service to use their intence
on behalf of road improvements.
THE HOUR RECORD.
The racing enthusiasts are never con tras to rest. They are always out to elip figures off the records.
Su doubt the excase that would be The latest new record to be established given it any member of the Legislative gorse to the eredit of the straight-right Council made enquiries would be that "in | Panhard Ortinans, 22 French driver, these hard times the money must be drove the ear, which "has
(
saved.
It is, however, a pennywise and a pound foolish policy.
It is a policy that the local Automóbil Association should attack, It is a dan- gerous polies,
Every month the number of motor, vehicles licensed for use in this Colony increases. The traffle most certainly does not diminish in volun.
There are places on the island where it
engine.
*
sleevis valve
He covered the hundred miles in just About 4 minutes 30 spevnds, giving a Average spend of 1945 miles per hour.
In the hour he, covered a distance of 120.21 milése compared with his own pre- vious record of 113.44 miles.
The car used was a standard 40-30 horse- ower Panhard-Levassor. The cylinder capacity is given as 6,335 cubic centi
metres.
יו
The Americans have a record of 125
Biver to test each particular type of is almost impossible for two cars to pass miles an hour, but that was obtained on
engine the cost would be considerante.
It will be noticed that the only two variables in the tax formula are the number of eyelinders and the diameter of the cylinder.
| WHAT IS HORSEPOWER?
The tern:
hors-power was first
of wear and tear caused to the roads by used by James Watt when he began to
manfaetare steam engines.
the car.
His engines replaced horsCH. The engines were used in the Carnish Mines to operate pumps for clearing water out of the mines. Previously horses had worked the pumps.
."
and in many cases the rond could be widened at very little trouble and ex
pense
GOOD WORK. Incidentally a word of praise is due to the Public Works Department engineers for the common sense manner in which
they have tackled the problem, of road
gutters.
The chl type of gutter caused many a! nasty jar.
14
What is now being, dune is to get a good camber on the road, with a gutter on the road level. These are much better arrangements for carrying away the sur- fare Water.
VARIOUS OBJECTIONS, "There was sufficient opposition to the petrol tax to cause the British, Treasury to abandon it. We can imagine that the doctors, for example, felt that the tax
Watt. being cautions, gave a conser- Was unfair. A Country practitioner might have to moter several miles to vative' figuer. It is certain that no
GARDEN ROAD. visit one patient. It was obviously un-horse could 'deveing une horsepower for
several hours,
The worst place in the Colony, In fair to tax hini at so much a anile.
Walt said that horse-power was motor traffic, is Garden Hoad. developed when a weight of 1,000 lbs. was policeman on his island at the botton In other does his best, but the junction is bad raised & feet in one minute. words, a horse-power is the rate of doing it could be improved at a little sacrifice work." It is 23,000 ft. lbs. of works per of the military land,, . minute.
There were also complications about commercial vehicles,
The only argument that appealed to | the average owner driver was this. If he "tuned up." his car and so obtained the maximum fuel economy he paid less tox than the careless man who inḥ with diggy sparking. plugs or a badly adjusted. carburetter.
If the car did not leave the garage for months the owner paid no tax over that period. for he used no petrol.
THE RA.C.
There were arguments for and against the petrol tax. Many motorists favoured the system of tusation by weight of the That is the method adopted in this Colony. it seems to be very suitable to local conditions.
citr
THE REVOLUTIONS. The horse-power that AD engine developes depends, not only on the square of the diameter, of the cylinder, but on the number of revolutions per minute, the length of the stroke and the pressure in the engine cylinder..
lu reent years the rate of rotation of the engine has increased a great deal. run as 4,600 revolutions ngisnow per minute..or nearly 70 revolutions in _*>,
It is quite impossible for any of us to Seventy re realise what that means. valutions a second is 140 strokes a
It must be acknowledged that the widen ing of the lower part of the road inst resulted in a great improvement. It häs. however, emphasised, the desperate states! of affairs at the Peak Tramway Station.
It is amazing that there are not seriņus accidents outside that station each werk.: Sonicday there may be a calamity and in that case the jury would be able to very definite opinion. It is express 'z much better to have the road improve- ment before there is a calamity.
:
THE PUBLIC INTEREST.
The property opposite the Peak Trap- In Britain, however, it was decided
way Station is no doult very valuable. to introduce the h.p. tax. The revente which the tax brings in each year has second. The pixton of the engine is at But the Government of this Colony, it is exceeded the wildest hopes of the tax-rest, is started on its moving paths land in the public interest and whatever travels down the cyclinder and comes to the value of the land it is certainly in
collectors and it is increasing..
believed, have the power to resinne any
When the tax was first introduced it rest, all in the fraction of time which the public interest to resume it for the l
is the one hundred and fortieth part of
was promised, that all of this revenue should go to the improvement, repair one second.
If the same engine runs first of all at and maintenance of roads. The money Came in so fast that the Government 2,000 revolutions per minute and then ollicials said that they could not spend at 4,900 revolutions per minute, then it it all. It accumulated and now some of developes twice as much horse-power at
the higher speed. it is to be diverted to other purposes.
The Royal Automobile Club officials were consulted by the tax collectors con- cerning the best method of rating the horse power of cars,
They finally suggested a formula. which has since been adopted for the calcula tion of the h.p. rating. It is a rough and ready method.
THE TAX FORMULA. The Act of Parliament that defines the method of calculating the horum power for tax purposes reads as follows:-
The horse power attributable to any cylinder of an internal combustion engine shall be deemed to be equal to the square of the internal dinineter of such cylinder measured in inches divided by a numeral."
We are then informed that the numeral
is 2.5.
Of course, if there are four cylinders the total horse power of the engine is four times the horse-power of one. cylinder.
So that the omitting of any considera tion of the number of revolutions per minute is bound to make any calcula tions for horse-power pedantic.
Similarly with regard to the length of the stroke.
Therefore, we see that the real horse- power of the 16/80 car is 60 and that' the figure 16 is simply a pedantic figure obtained by the use of a formula which has no scientific justification. its only excuse is its simplicity.
IMPROVEMENTS.
It has, however, icd to a great deal of confusion, and an English 10/60 h.p. car is as powerful as the C0 h.p. Continental or American, ear.
-For racing purposes the cars are often graded according to the volume swept out by the piston. That includes the square of the diametry, and the length of stroke it takes no account of the number of revolutions per minute. "
Nor does it include any consideration of the pressures in the cylinders." Thus, suppose that we have "a four. The whole tendency of design in cylinder car with cylinders three inches motor-car engines has been to increase in diameter. Then the square of the the pressures in the cylinders and" the diameter is sine. If we multiply nine revolutions per minuțe,
by the number of cylinders-four-we In other words we now have greater obtain thirty-six. Now divide that by lines powers for the same weight of 2.6 and we have 144 hp. or tax rating material than was the case a few years £15 per annum.
ja agób
In all probability the actual horse- That has been 'roade possible becauan power of the engine, when tested on the of the great improvement in the quality test bed at the works, would be nearer 50 b.p.
of the Aaterials used in motorcar con- struction...
purposes of widening the road.
There is a rather foolish little island of shrubs and rocks just near the Volunteer Headquarters which occupies space that is badly needed for parking cars. Why not remove it?
SHE
a board track. It would be of interest to know what the same car would do on un ordinary track for it is, of course, well known that a board track gives better results than the usual type of truck.
Simonds'
Milk
Stout
You want a nice, smooth delicious drink. And you want building up-You feel run down. Well, drink SIMOND MILK STOUT. It is nourishing and in- vigorating.
Each Pint contains the en- ergising carbohydrates of 10 ozs. pure Dairy Milk.
Sole Agent: CALDBECK MACorzobr & Co., LTD. HONGKONG Phone Central 75
Brewer
H. & G. SIMONDS LTD., READING, ENGLAND Established over 120 posts.
MARTIN'S
APIOL & STEEL ·
Sure and certain for all Female complaints. Every lady should keep a box in the house.
Chemists and Stores sell them throughout the world. Proprietor "MARTIE, Chemist, Southampton, England,
SHELL
SHELL
DELIVERED BY OUR OWN. LORRIES Direct into CERTIFIED
SHELL PUMPS
IS ALWAYS THE SAME
PERFECT QUALITY AND
CORRECT MEASUTE
The Asiatic Petroleums Co. (8.C.) 1.28
(Elacorporated in England)