THURSDAY, DECEMBER 12, 1929.
THE
USE OF HYDROMETER 6-CYLINDER ENGINE ACROSS THE VELDT
史
Benefit Of Testing Car Product of Guy Motors, Test Of Transportation
Battery
Sulphuric acid is much heavier than water, and so a solution of sulphuric acid and water (as the
electrode) will be heavier than water, and the greater the propor tion of acid to water the heavier
will be the solution.
side valves.
Ltd.
Tyres
Gay Motors, Ltd. of Wolverhamp Matched against the aure-footed- ton, have now produced a six-ton four- wheeler incorporating their latest typeness of African lions and elephants of six-cylinder engine. They have also Fisk transportation tyres have won produced a six-cylinder ten-tonner with a marathon contest staged by the
lasting the better part of two and Martin Johnson African expedition
a half years, The race was run over the roadless wilderness of British East Africa and southern Abyssinia, where Mr. and
have been much improved. All are now In addition their passenger model equipped with a new and Imposing
radiator, and all the six-cylinder-en- When the electrolyte is first pour.hich allows the compression ratio to gines have a patent cylinder head ed into the battery much of the he raised considerably, and increases sulphuric acid will be absorbed by the power output. The head is of completely is very the plates, and so the electrolyte aluminium and
water jacketed.. Alumiinium pistons becomes lighter in weight, the pro-are also used. portion of acid to water becoming The new FC type six tonner has a lesa. As the battery is charged, straight, frame
The six-cylinder engine produces over however, the sulphuric neid is 105 brake-horse power, and the thrown out of the plates and into auxiliaries are gear driven. The en the electrolyte again, thus making | eine single plate clutch and the four the electrolyte heavier. AB the apced gear-box are carried in the Guy battery is discharged the acld will patent sub-frame which is itself mount again be absorbed and the electro-d at three points in the main frame. lyte becomes lighter.
Here then, is a way in which to see how well charged the battery fs-namely, by weighing the clac- trolyte.
and forward control,
Drive and torque are taken by the springs, while the rear axle is of fully drive. Houting type with overhead
}
WOTI
The two new six-wheelera introduced by this firm are also on show at Olym pia. These are a six-ton six-cylinder
Weighing the Electrolyte The best way to weigh the elec-|er-developing 106 h-p. trolyte is by means of a hydro- ineter. This is a glass tube made air-tight, having some lend shot as weight in the bottom and having a scule of numbers in the top.
trulley and a 56-70 seater double deck-
The advantages claimed for the six wheeler vehicle are the halving of the rear xle weight, the reduction of tractive resistance, elimination of wheel spin and the material reduction of skidding.
Also it is possible to introduce lower centre of gravity.
#
The hydrometer is so weighted and proportioned that when placed in pure water it will sink to such The whole point about the engine in a depth ns to have the top of the bath models is their extreme accessi. water come to the 1,000-mark on the hility. The carburetter and magneta scale. The very top is the 1,000- are placed in a particularly handy mark of many hydrometers. If position. and apart from this the placed in a liquid heavier than cylinder heads can be taken off in o water it will not sink so far, and few minutes without interfering with the number to which the top of the the valve gear,
The outstanding mechanical
tea-
and
Alm
CHINA MAIL,
13
MOTOR COACHES
Great Advance At Olympia
London, Nov. 7.
The Commercial Motor Show at Olympia, which opens this week, that has ever been held. 18 certainly the most Important
don once
This show is only held in Lon- every two years, Its place being taken in the inter- mediate year by the commercial section of the Scottish Motor Show, which is held in Glasgow.
Those who visited Olympia two Mrs. Johnson successfully sought | years ago cannot fall to be greatly miles of motion picture
impressed by the great advance that has been made in the last thousands of photographs two years, not only in the design to add to their already vast collec- of motor-coaches, but also in the tions in the American Museum of construction of lorries. Natural History, New York City.
"The two Knight-motored trucks which we used to pursue African wild animals were equipped with Fisk transportation tyres,” said Mr. Johnson. "We started out of Nairobi, in British East Africa, and for eleven months our expedition followed the trails of animals; through Tanganyika, to Lake Para- dise, along the Abyssinian border, back to Nairobi, over to Uganda, down to Tanganyika again, and once more into Nairobi. In all this time we did not have a puncture."
"We started out again from Nairobi on the same eight tyres that had carried us through our preceding expedition. For nine months more we hunted new game pockets in Tanganyika, shooting lions, elephants, giraffes, and many other animals with
our
cameras.
In
are
the case of coaches, real efforts have been made to incor- porate pleasure car requirementa and to make the vehicle as com- fortable sa possible, and there la no doubt that they have succeeded. In two cases the coaches. actually leading the pleasure cars. The ideal that has been sought is to produce a vehicle on a large scale which will be a replica of the most comfortable and luxurious private pleasure car.
reasonable limits
Size within
does not limit vehicle.
controllability of a road and there is no reason why the ac celeration of the coach and its steering and braking should not be as good as any ordinary private
CRr.
No More Nolay Lorries In addition the day of the ugly Be- rumbling nolay lorry is over. heavy load there is no real reason cause a vehicle has to carry a
for it to have an ugly high chassis, and to thunder about the roads making a thorough nuisance of
liquid comes will give the weight hures include a seven bearing crank
itself. Still the Fisk tyres held up. Final of the liquid as compared to the shaft, the Guy patent valve systemy near the conclusion of this weight of water. Thus, the liquid with inclined valves and cylinder second expedition, one of the eight weighs 1.3 as much as water does, heads, and four-speed gear box, while tyres went flat and was replaced by
So, then, to test a battery to see another Guy patent is represented in how the charge la, draw out some the flexible sub-frame.
a spare." of the electrolyte and place it in
The controls are also interesting in
a hydrometer. When the readingo far as the steering is of the cam
18:
1275 to 1.380 battery is fully
charged.
1.260 battery is 34 charged.
1.210 battery is charged.
1.160 battery is charged.
1.120 battery is discharged.
A special hydrometer syringe
and roller type, and the foot and hand brakes operate on the rear wheels and vacuum-zervo motor assists the foot
brake.
I
BRITISH RECORD
with which the electrolyte can be Largest Contract Ever
have.
Made
Longevity
Mr. Johnson smilingly confessed to every known crime against the longevity of pneumatic tyres.
In many lorries at Olympla this year the fashionable high radiator on private adopted.
саг lines has been Four-wheel brakes power assisted, are just as im- portant a fitment for the lorry as for the private car, while light steering and a flexible engine make for transport efficiency.
Even in the very largest classes
The one-ton American trucks usuai-refinements have been introduced. ly carried a two-ton load, with half particularly studied.
Safety and reliability have been This can be a dozen African, portera piled on seen even in the design of the top. The drivers of the trucks wero chassis frame.
native blacks, who had never join-
In the case of the lorry this la
ed any societies for the prevention still generally straight from front
to back with cross members of
The New
"Be sure to see it”
BUICK
with New Steering Shock Eliminator
114" Wheelbase Marquette Models 118" Wheelbase Buick Models 121" Wheelbase Buick Models
132" Wheelbase Buick Models
.......G$1,470 to G$1,600
.G$1,800 to G$1,940
∙G$2,240 to G$2,275
G$2,195 to G$2,890
LTD.
THE DRAGON MOTOR CAR CO.,
Telephone Central 1246 or 1247.
33 WONG NEI CHUNG ROAD, HAPPY VALLEY.
PUBLIC SAFETY
drawn out of the battery, and also! containing the hydrometer, can be
of cruelty to tyres. If the expedi-pressed steel, but in the case of purchased at any accessory store The motoring correspondent of the tion had ever owned a tyre gauge, the passenger chaseis real at- and will prove a handy device to "Daily Mail" wrote on November 7-it was loat. The rubber side walls tempts have been made to keep the Enforcing A Reasonable
centre of gravity low and the frame is generally upswept over
Pace one or both axles, while tubular cross members are used in a num- ber of cases.
Filling With Water
tremely important if the battery is
CAR BRAKES
Make Travel Safer To-day
/H
Lere's the TYRE you've
Opening the Commercial Motor been looking for
Transport Exhibition at Olympla, Mr. Morrison said he hoped that
manufacturers were not spending new records for too much money on securing speeds of sixty to seventy miles an hour for motor-coaches, because. If so, he was afraid that the money wae being wasted. It was obviously un- thinkable that these speeds could
In spite of higher road speeds, motor car travel la safer to-day than a few be allowed on ordinary roads, and years ago, according to automobile whilst he was not temperamentally traffic authorities, because the daiver of a stick-in-the-mud in these matters, the modern has more powerful everybody had better appreciate trakes at his command.
that steps would be taken to en-
I am able to reveal that on the ava
were torn off by chains and were While you can test a battery of of Commercial Motor Exhibition, dry cells with an ammeter you can-which opens at Olympla, Kensington, not vulcanized. As for checking up not do this in the case of a storage, to-day, a British firm has com the wheel alignments, even the battery. In the first case the am- pleted the largest contract ever made
for the supply of commercial vehicles. terms of "camber," "caster," and pernge ja seldom over 22, while in the second, case it will be so high contracted to supply commercial vehi tion's vocabulary.
Morris Commercial Cars, Ltd., has "gather" were outside the expedi- as to burn out the instrument,cles of its lighter types to the value of there not being enough resistance. 3,641,750 to dealers. All these
Pig Holes" vehicles will be for the home market "Any road in America is a boule- only. The water of the electrolyte con- Exclusive details the new Morrisvard by comparison with the routes stantly decomposes and disappears commercial models were given in "The we followed in Africa," said Mr. in the form of a gas. For this Daily Mall" on October 26. They have Johnson. "Across the veldt, bump reason, about once a week, you created a sensation owing to their should fill the battery with distill-novel lines. To simplify maintenance,ing over and into rock, strewn ed (not filtered) water. The hydro- the engine, radiator, and front axle and gullies or "dongas," up the 14,000 meter syringe referred to above is wheels can be removed as one anit, and foot Ndoto mountains where no an excellent device for doing this new unit run in so that the old one
motor car had ever been before, can be overhauled at leisure. Filling with distilled water is ex- The show contains the most remark through rivers, into "pig holes" and ful and speediest cars on the market, vehicles consistent with the public For example, one of the most powerforce reasonable speeds on such oble array of goods and passenger vehi-out again, we travelled. Exactly Pierce-Arrow's now Straight Eight, safety and the rights of other road Do not attempt to test the bat-There are cars ranging from tiny de how many miles we covered cannot mides an hour to a stop within a dis-]
cles ever gathered under one roof.
can be brought from a speed of 40 users. livery vans to huge omnibases and even be estimated, but for twenty tance of 54 feet. In former years Never put acid into the battery. conchos capable of carrying 60 passen-months out of the two and a half more than twice that distance would A storage battery can only be gera.
years these eight tyres have been have been required. charged by a direct current and Some of the heavier lorries can carry on our trucks, we travelled between when charging the positive wire of enormous weights and are designed 35 and 160 miles daily, practically the charging current must be con-for special leads, which can only be all across the country" nected to the positive of the bat night.
taken along specified roads and at
After a few months in the States, tery and the negative to the
Some of the coach bodies are most Mr. and Mrs. Johnson returned to models.. Three shoes, operated mechani- negative. The voltage of the charg-taxurious. They have been designed Africa, where for ten years they cally, expand Internally against 03 ing current should be somewhat specially to appen to women and are
have spent most of their time. A per cent. of the drum surface which is greater than that of the battery, fitted with hand mirrors to each seat. native of Independence, Kan., Mr.60 per cent. more than most cars. The while the amperage should not be Each passenger has plenty of room, Johnson has virtually dedicated his design of the shoo is such that the
One of the outstanding economic above one-tenth of the capacity, and many coaches have folding tables life to studying, and photographing braking, effort automatically multiples facts of the trade depression period, When a battery is charged or dis-and a kitchen.
the rapidly vanishing wild animals itself; the pedal required is so might be proceeded, was that when indus- charged very quickly it will over-have private-car requirements. Shock have achieved international recogthumb. The brake shoes are complete continuous development in the Nearly all the vehicles in the show of Africa. Mr. and Mrs. Johnson that the full strength of the brakes can try as a whole was having a thin heat, and this overheating may re-absorbers are fitted to most, while ena nition for their African explora ly enclosed and protected from dirt and manufacture and use of Britisk be applied by the pressure of a man's time thers had been a rapid and sult in the plates warping. When make standardises a "twin top" rear- tions, and are equally well known
to have a long and efficient life.
tery after filling with water.
the plates warp the paste will fall box with a silent third speed.
out of the grids. Not only will this prevent the battery from taking a charge, but it will shert circuft the plates at the bottom. For this reason the battery must be charged slowly.
Using the starting motor för a considerable time at a stretch means a quick discharging of the battery and a possible overheating and warping. Therefore, if the engine does not start quickly, do not use the starter for a long time, but get out and find out why the en gino dosa not start.
Keep your battery clean. If the smallest quantity of iron or copper, etc, gets into the battery, an Iron or copper sulphate will form on the plates, and so make them Inactive. Do not leave a battery standing in a discharged state for any longth of time,
It is a good practice to wipe the "terminals with a cloth- on which there is little viseline.ANADA deld must never be put into the ery If the electrolyte in spill
Occident the battery must lled with a solution of acid
be"
and
battery
as authors and lecturers.
The four-wheel brakes on the now
Pierce-Arrow Straight Eight have brake drums of record sixe. They have an area of 356 square inches, 57 'per cent greater than those of previous
water.
He said that, not because he wished to discourage progress and enterprise, but because he' was very anxious that nobody should waste money in achieving things which would not be allow. ed to be effective on ordinary roads.
Growth of Motoring
commercial goodë; vehicles, and the larger types of public service pas. Booger carrying vehicles. Britain had led the world in transport by sea and by rail; and we were now making strides towards" predemin. ance in the air and on the road. British commercial vehicles were jaecond to nono, according to cal. culations based upon actual ex- perience and cald fact.
It would be a bad day for British transport when it was assumed that there was inevitable and permanent Leonflict between rail and road, as means of transport. What we had got to do was to secure the use of the best means of transport for the purpose in hand. Any Government who stood by rud allowed the reck less building up of an excess pro- vision of transport facilities would be making trouble for, labour, "in- dustry, and the taxpayer in the future.
PONTIAC
WFORD, LTD.
Dept. CL1791
·
.. it's setting
MILEAGE
FISK
RUGGED ALL - CORD
The finest TYPE ever made by
FISK, giving the utmost in
safe traction, good looks, long
life and remarkable value.
OBTAINABLE AT ALL GARAGES UPON REQUEST.
GILMAN & CO.
Sole Distributors: GILMAN
Tel. C.290.
HONG KONG BANK BUILDING.
ADT
4A, Des Voeur Road C.
ACCESSORIES
THE REPUBLIC MOTOR CO. OF CHINA:
30-32 Des Voeux Rd, C.