1926-09-29 — Page 8

THE HONGKONG DAILY PRESS, WEDNESDAY, SEPTEMBER 29TH. 1926

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Motoring Notes:

A Weekly

Review dealing with matters of interest to all local motorists.

14

[BY AN OWNER-DRIVER.]

Many an owner of a car neglects the very important factor of changing the lubricating oil at fairly frequent intervals, How some of the local pirate" cars manage to function at all is a mystery By all the laws that experienced enginects write down in the text-books the engines of these pirate cars ought to revolt, after a month or two of the treat ment that they receive: They don't."

Of course, Nemesis arrives at last. An internal combusion engine is often patient. It will stand a good many insults. A last, however, it hits back at the owner who is negligent and penny wise and peund foolish

CONTAMINATION. Lubricating oil becomes contaminated in time. The three chief causes of con- Lamination are

The Life of Oll-Air-Filters-Trans

mission Systems-Petrol 'Buses.

FIGURES. CONVINCE. The Newcastle Corporation have been running petrol buses for rather less than

years. They are said to be able to perate them for two-pence a mile less than the cars formerly in use.

The modern vohicles have, usually, és seats, and are pneumatic tyred. The old flect had solid tyres-bad for the reads

ad bad for the passengers.

The working costs on the old vehicles came to about 13d a mile, but the modern and more comfortable 'buses run for about 10.d. a mile.

It is of interest to notice that of that total running costs--excluding tyres comes to 5.23 per mile. That includes fuel and lubricating oil

Tyres cost 123d. a miler Repairs 1d. a wile Administration expenses work out (a) Little particles of dust and dirt ure at less than a peuny a mile.

It would be of great interest to know drawn in with the air through the carburetter. It is worth noting that somehow much it costs to operate buses in of the more recent cars have an efficient Hongkong. Whatever the cost, the fact air filter. It is possible that there willemains that they are populus. It is -be considerable improvements in this strange that there are no big open sight matter, but for the present it must be seeing cars, for about 20 people, used Terri recorded that air does take in dirt and for circular tours round the dust very fine particles-as it goes tory. through the carburettor and the engine cylinder.

a)

New!

will be developed when the Peninsula That may be another enterprise that

It is fairly certain that if there were such trips on say, Mondays. Wednesdays, Fridays, Saturdays and Sundays many local residents would book. There are always visitors who would be glad of this form of transport.

(b) When oil is exposed to high tea-Hotel is opened. peratures and the temperature of the exploded gases in the cylinder of an internal combustion engine is in excess of that required to melt cast iron-then the pil partially decomposes Carbon and gammy deposits result. Soma of this soon gets into the lubricating oil and makes if dirty.

(e) Particles of water are condensed from the exhaust gases.

In this local hurried climate the air often is saturated-it contains so much water in suspension that it cannot absorb

any more.

Waen this air is drawn into the engine cylinder it is exploded with the petrol gns, at these high temperatures there is Do question of condensation. But if any of the exploded mixture gets a chance to cool and get near to the lubricating. oil it will leave water with the oil. And that is what is not wanted-quite the

reverse.

A STREAM-LINE FILTER. An invention by that versatile scientist, Dr. Hele-Shaw, is named the stream-line

filter.

Its purpose is to clean the lubricating oil.

The filter can be fitted to the engine. All of the oil does not pass through it on its passage through the engine oil

cirenit.

A small portion of the oil is shunted" through the filter, but the arrangement is made that the entire contents of the Lump is passed through the filter in un

hour.

OIL CONSUMPTION. This looks rather bad for the big oil companies who sell millions of gallons of lubricating oil each year to motorists. To give them their due, however, the big oil companies are broad-minded. They ncourage anything that will make their customers more contented..

Of course, other types of oil alters have been used. But this Hele-Shaw invention is using a new principle.

It may not be all that is claimed for it. Reliable experts have tested it and say that, after filteration, the oil is ug tually improved as a result of running.

Incidentally it may be mentioned that De Hele-Shaw was one of the early pioneers of motoring. He has had a romantic carcer." For the last twenty years or more he has had an office in Victoris Street, Westminster.

That office might almost be called an invention factory! This great scientist bas all his new ideas made into works drawings in that ofée.

•

HYDRAULIC TRANSMISSION. Perhaps he is best known because of "the Hele-Shaw clutch, but he has devoted a great deal of time to the problem of hydraulic transmission.

U course. & private party in an open touring car is very nice, but it is more expensive than the sort of thing that Cook's organise in many parts of the world for twenty or more people in one vehicle..

No doubt, in due course, gollers will hire such a vehicle, which has many ad- vantages over a train.

THE RULE OF THE ROAD.

:

An anxious motorist recently enquired whether he had the "right of the road" if he was going up hill and came to a one-way piece of road the passage of which brought him across to the wrong side of the road

STOPPING AND STARTING.

While it is standing idle the electric wagon consumes no power. Tho. Shefeld vehicles consumed, on an average, rather less than two units of electricity for every mile run.

The actual cost of collecting a ton of refuse averaged out at 10s, 23d. It was found that when the refuse was collected by horse vehicles the cost was 113, 400. per tou.

The electric wagons seem to have been reliable as the time lost by accidents, repairs, etc., worked out at ef per cent.

When collecting refuse the wagon is continually being stopped and remains stationary for a short period. It is not practicable to be continually stopping and starting a petrol engine so that, with such an engine, fuel is used when the wagon in got moving. That does not happen with the electric vehicle.

THE NEXT INVENTION. What we are waiting for is a very light and inexpensive storage battery. The batteries now or the market are too heavy for any place that has steep gradients.

The Bury Cleansing Departinent have published comparative figures which prove that the mechanically propelled vehicle is ess expensive to run than are curts drawn by horses.

The cost per ton of refuse collected in Bury with petrol motor wagons worked at 1. old. When horses were used the cost was S. B‡Ù...

The use of the motor wagon is rapidly extending in Hongkong. Last week the writer made two trips around the New Territory, It was a surprise to ste so many light motor-lorries on the roads.

On enquiry it transpired that a fair price for the hire of a two-ton lorry for a day is twenty-five dollars and for hali a day fifteen dollars. That indledes everything-driver and fuel.

QUALITY AND PRICE.

The use of motor wagons is certain to, become more and more popular. They should prove to be an important factor in developing market gardens in the New Territory

The essential need is to get the pro- duce in to the town before it becomes stale. The motor wogan is the only method of transport that makes it pos sible to do that.

One British firm of makers advertises refuse vehicles, cattle trucks, tipper and all lorry types of from one to Eve tone at prices from 5295 upwards. There are As they say in Parliament, she an-cheaper, vehicles. Ia purchasing machin, i swer is in the negative." The rule of the ery, however, it usually pays to get good After some road remain whatever may be the quality, in the first place. obstraction.

experience of the wear and tear caused

It is of course, an act of courtesy for by the work done it may sometimes pay a car coming down hill to give way to ato buy cheaper machines. But not often. car coming up. Remember it is an act of courtesy. The driver of the car coming up cannot be exonerated if he is on the wrong side of the road in the case of a collision.

The rule of the road is that you must keep to the left. When you go across to the right in order to pass a vehicle,-or to avoid an obstacle in the road. you must take all the consequences of being on the wrong side of the road.

Of course, the considerate driver who is coming down hill will put on his brakes and signal you to come through if you are climbing a hill and there is a one way passage on your right hand side.

You must not, however, assume that he will do so. It is an act of courtesy on his part. It deserves a Thank You" as you pass him.

THE WARNING.

It is always advisable to use the hooter when you are going over to the wrong side of the road. It is also a good plan to put out a hand as a warning.

Along congested roads such as in Wan- chai it is almost excuseable to have, a "cut out' on the exhaust pipe, which acts as a continuous warning. That is not allowed by law. Perhaps an automaa tie arrangement for making contact on the electric born is permissible. A wire connected with a contact on the screen wiper would do. As the wiper swings to an extreme position contact is made and the electric horn sounds.

It is worth noting that the Chief' Con- stable of Carmarthenshire bas recom-

The idea is to get away from the pre-mended penalties for negligent walk- sent form of mechanical transmission of ing."

He says "The absent-mindedness of power from the engine to the car-wheel. Other enthusiasts have made many, ex-people who suddenly step in front of is respon- periments with electrical methods of an approaching vehicle transmission. None of these inventions sible for many accidents. The magis has yet proved itself better than the trates in Bongkong would be kept busy methods that have been in use for thirty if there were penalties for "negligent

on the roads of this Colony. years. It is, however, almost certain walking that there will be some change because, reliable as is the present system, it is not mechanically perfect.

PETROL 'BUSSES.

ور

ELECTRIC WAGONS FOR COL- LECTING HOUSE REFUSE.

It is abundantly evident that motor- In the tropics it is essential to collect "buses are popular in Hongkong as a house refuse sa rapidly as is possible., method of transport.

Those of us who remember the slow."

It is also very much to the benefit of moving vehicles used in Hongkong a few the public that the local traffic authorities years ago believe that we did a public have insisted that good body work and service when we ceaselessly advocated the reliable vehicles shall be used, at any use of motor transport for collecting

refuse. rate in Hongkong and Kowloon.

It is probable that some of the old In Sheffield the Cleansing Department 'buses will do pioneer work in other operates no less than sixty-nine electric

Refuse places in South China. Meantime data vehicles.

collection ja done about running costs is being accumulat rapidly with this fleet. In many towns petrol driven. vehicles are used Electrio batteries at heavy.

ed;

It is any years ago since, the writer visited: Newcastle on Tyne and some "Geordie" may correct him if his memory is defcctive..

He thinks, however, that Newcastle is hilly, although not so bad s4 Son Francisco where there are streets that surely are much steeper than Garden

Road at its worst.

Hongkong, with its hills, is not an ideal place for electric motor wagons. Never- theless that type of refuse collector has its advantages.

If the house refuse is used in an, în. cinerating plant that generates electric power, the cost of charging the batteries is not great.

TEKNOX KIM JEST

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