THE HONGKONG TELEGRAPH,

GUM-DIPPED

TYRES

For Commerce and Industry

Firestone Gum-Dipped Pneumatics for buses and lorries have established a world-wide reputation for sustained speed, easy riding, all-weather-dependabili.. ty and long mileage. They are built extrn size; for heavy loads of pasaengers or freight. 1, the Gum-Dipping process, the cords of the carcass are dipped in a rubber solution, Insulating every strand of cord with rubber; minimizing friction and giving protection from heat, strain and fatigue. The powerful sidewalls and shoulders have exceptional strength and toughness. The wide semi-flat tread gives greater riding surface," with Improved load distribution and consequent slower wear. Backed by our personal service, this tyre is a great money-saver and money-maker. Let us tell you more about it,

MOST MILES PER DOLLAR!

Firestone

THE DRAGON MOTOR CAR CO., LTD.

Telephone Centrál 1240 Telephone Central 3500

Tough Stuff

Miller goes to the ends of the earth to find the finest rubber grown for America's First Scientif ically Correct Balloon Tires. Then by the most modern methods known to the industry, combines finest rubber, finest cotton, finest of everything. Tough stuff-in these Miller Tires. You'll' find none better-none easier on your pocketbook.

A. LUNG & COMPANY. Sole Agents: 19, Queen's Road, O

Phone 0.1219,

33. Wong Nei Chung Road. 33, Des Voeux Road Central.

ORANGE TAIL LIGHTS.

A New Law in

Germany..

MOTORING SUPPLEMENT.

SATURDAY, JULY 7, 1928

WHY TYRES WEAR. BETTER BRAKES. THE MORRIS MINOR, with two wide doors, separato

Hints Issued by Dunlop What Studebaker is More About the New level of the frame, so that there fo

Doing.

Model,

adjustable tip-up front seats, and rear seats which have the floor- boards sunk considerably below the

plenty of leg room without making : the body too long. All four win:

Coy. All motorists are, interested in Higher road speeds, more con- The announcement recently made dows slide to opon, and at the front the subject of tyre wear and ita gosted highways, and greater traf- by Mr. W. R. Morris that he in-is a single-pane windscreen, which causes; few, however, realise the fic density in cities make it impera- tended to put into production a new also can be opened vital affect that speed, road sur-tive that automobile brakes junc-four-seator small car of 7 h.p., to One of the fistures of the design faces, starting and stopping has tion with a wide margin of safety. bo cold at a competitive price, is a is the low build of the chassis, the on the wear of tyres. The follow- One of the most important im- matter of great interest to motor-frame being dropped between the ing instructive data has been provements in four-wheel brake ists and prospective motorists arches over the front and rear ax- issued by the Dunlop Co., and is design is the development of the alike. We may be sure any les. The whaalbaar is. 6ft 6in, and the first of a series of articles amplified action four wheel brake now car bearing the

the track ft. Gin. name touching on the important subject.now standard equipment on all of Morris will br entirely In appearance the car is decided- The present era of improved Studebaker and Erskine cars. sound in Ita conception, for ly attractive, from the normal Mor roads, increased automobile ac- This type brake has unusually the current types have reached ris shape radiator to the back of the tivity, and intensive automobile effective braking power, and res their immense degree of popularity well proportioned fabric body. All performance has brought on new ponds to light braking pressure. not merely because they are rela- the up-to-date features of modern operating conditions which cause Tests made at Studebaker's 800- tively less costly than most, but becar design are incorporated in the mechanism; the four-cylinder a wide variation in the amount of Acre proving Ground show that cause they are satisfactory, reliable, wear that is possible from tyres Studebaker and Ersking brakes and practical from every point of water-cooled engine has overhead **valves, an overhead camshaft, and of the same make or the same will stop the cars in less than half view. quality. In this study there are the distance set up as standard The underlying idea of this now coll Ignition Three spoeds are a great number of major factors, by official safety codes.

small "Morris Minor," as it is of provided by the gear box, which has each of which covers a lot of At ten miles per hour the safety ficially named, is to provide the the change-speed lever placed cen- smaller ones; some interlock with code of the American Automobile public with the most economical trally. Finally drivo is by spiral others, yet each has its distinctive Association indicates 12.5 foot aasible by means of low first cost, are fitted, and are operated through form of motoring at present pas-bevel gearing. Four wheel brakes effect on the performance. These a satisfactory stopping distance. small tax, small petrol, wil, and cables. The detachable wire wheels factors are as follows:--

Studebaker and Erskine brakes (1) Speed-High-speed driving being these cars to a stop in 4.5 tyre bills, and small cost for hous-are shod with 26X8. 5in. tyres.

The steering gear is epicyclle. is a 'natural thing to-day. Cars feet. At 15 m.p.h. the A.A.A, code ing accommodation.

Lucas electric lighting and start- are capable of higher speeds than indicates 28.1 ́ feet;

Plans are in train already for ing are used, and the five lamps in- before roads permit it, and even and Erskine test cara stop in 10 production, and it is hoped that the clude separate head lamps. The the ballon tyre itself, with its feet. At 25 m.p.h. the recommend. first limited batch will be turned car is definitely intended to carry extra cushioning quality, makes ed stopping distance is 78.2 feet. ford during August. In ita experi- not yet definitely fixed but it will out from the Cowley factory in Oxfour grown-up people. The price is sustained high speed over rough Studebaker brakes hold at 28 feet. mental stages the now roads possible: People have be-The A.A.A. stopping distance at proved

car has be highly competitive.-The Auto- exceedingly promising. car. come accustomed to driving to such 25, 40, and 45 m.p.h. are 153.1, 200 particularly with regard to com an extent that the average speed and 253 feet respectively. Stude fort, due to the low centre of on the open road is at least 10 to buker and Erskine brakes bring gravity and the half-elliptic 15 miles higher than it was five the cars to a slop at 54.8, 71.6. springs, which combine to render years ago. Compare this with the and 90.6 feet respectively.

the auspension" free from rond fact that tyres which wear 12,000 The self energizing feature of shock and at the same time devoid

"The manufacturer supplica milos at 35 m.p.h. will, give only Studebaker and Erskine three shoe of undue pitching. Other features 6000 miles at 45 m.ph. under the brake design is largely responsible have proved to bo caso of control what the public demands," is an old same road conditions and tem for this exceptional stopping and a lively performance on the saying, says. The Autocar. "But it le not always true. For example, Increase perature. An

of 10 ability. Light pedal pressure road,

the car maker is still too prone to m.p.h, in speed doubles the rate turns a cam which throws the 'pri- Much detail of the design' cannot

supply the owner-driver. with of wear between 30 and 50 m.p.h. mury and auxillary brake shoes yet be given, for, like all new brightly plated parts and fittings, Below 30 miles per hour the in- against the brake drum. The things, it is not fully settled in all which are agreeable to behold when crease is lower, but above 50 miles method of holding these brake respects, though the general scheme polished and unpleasing when sub- per hour the rate of wear Increases shoes to the brake housing is such is crystallised. The following ject to the degree of neglect that is very rapidly. There is probably that the rotation of the brake particulars, however, may safe usually their fate. The heads of no one factor that is causing such dram forces the secondary

be given. The shoe ly

Initial factories Dre slowly learning

Studebaker

|

.

PLATED PARTS.

a wide rango in tyre wear as speed, against the drum. Thus the ac.form of body will be a wisdom in this matter, but they because there is such a wido tual motion of the car is utilized full four-seater fabric saloon, have still some way to go." range in the amount of speed to increase braking, effectiveness, engaged in. The car owner of to-for the movement of the wheels. day may use his car for many forces the brake shoes tighter and months without giving it much tighter against the brake drum. hard usage, then suddenly he will This feature is termed by Stude. take a short vocation trip, during baker as 'amplified-action since which he unconsciously drives at the light pedal action of the driver

ļa very high rate of speed on an amplified into a powerful brak-

average, and in a comparatively ng force by the motion of ear. short mileage will wear away sufficient tread rubber to cut his

mileage in half.

Road Surfaces,

on tyres,

ROAD WIDENING AT DURHAM,

Durham County Council ін

Starting and Stopping.

The kind of roads over which negotiating for the purchase of tyres are run has a large bearing land in connexion with the scheme on the rate of wear. The dirt for widening and raising the level froads, which are fairly soft, do of the Norton-Billingham road.

not cause much wear, but improv- ed roads with various gritty Bur-| faces for traction purposes are sometimes quite hard

In recent tests a car was driven Some improved roads provide long at 5 m.p.h., stopped every quarter wear, but others that look just of a mile without sliding the about as good will wear a tyre wheels, and then accelerated to German police have decided to five or six times as fast. The same 35 m.ph, ngain, wore onthalf the enforce a law passed a year ago types of roads show a difference in tread design away in 108 miles, requiring automobiles to use orange abrasiveness. For example, some The same car, driven at the same coloured tail lamps instead of red,tarbound macadams are covered rate of speed, but stopped every German railroads are responsible with sharp-deged gravel, which is mile, wore one-half the tread away for the passage of this law. Of held in place by the tar. With this in 3100 miles. This indicates con- recent years so many automobiles wide variation in roads it is hard clusively the serious effect of were parked close to the railroad to classify which type of pave starting and stopping. Added to tracks in cities mul towns that the ment is better than another. As this is the possibility of the pre- red glow of their tail lamps at rule paved roads are less sent day automobile to jump from night confused locomotive en abrasive than gravel roads. standing start to 30 miles per gineers who were watching for Gravel roads made from crushed hour in a few seconds, and of their signals.

bringing the The railroads considered the mat. rock are more abrasive than those four-wheel brakes ter so serious that they demanded from washed river gravel, because car to a dead stop in half the dis- passage of a law prohibiting auto one typo presents sharp edges and Lance that it formerly took, Even mobiles from having red lights, corners, and the other round, two-wheel brakes are more power- claiming priority in the use of this deney to "roll" types to one side. case to stop the car in a short dis- Highly crowned roads have a ten-ful than ever before, and in this The car shows a tendency to run tance like four-wheel brakes it is

to necessary

Blide the toward the kerb ar ditek-more often

do Naturally the rate of war is in-not cause sliding. constant steering is required. wheels. Four-wheel brakes

as frequently, creased more so if the "crowned" and distribute the wear more even- The rule of the road in Portugal road is rough. There is merely because of quick stops the has been changed, and in futuro abrasiveness, more pull on the tread rubber is worn away rapidly vehicles must keep to the right.

in either case, types, and more wear.

eolour.

KEEP RIGHT IN PORTUGAL

THIS KIND OF FISHING HELPS MOTORISTS.

MONET-GOYON MOTOR CYCLES

Our first shipment is due here on the 9th, July,

The following is the Proof of Quality of the above famous Motor Cycles:

RECENT VICTORIES (May 13th, 1028.) FRENCH TOURIST TROPHY 2,964.800 Kilom. The race was held at MONTLERY TRACK

with several competing machines.

174 cmo: 2 Entries, 2 First Places (SOURDOT and HOMMAIRE) without loss of one point, and performance superior than 250 cme machine.

Handicap, for all Categories, won by SOUR- DOT, on M.-G. machine, without loss of points.

PRICE from H.K. $320 up.

For particulars apply:-

46; Nathan Road, Kowloon.

Fishing with a giant electro-magnet under this truck, South Dakota highway amployees. picked up 300 pounds of steel and iron scraps along only 20 miles of road. The collection in- cluded a stove.leg, an old skate, a monkey wrench, pieces of broken springs, fishhooka, a safety razor blade, atyre. chain, pieces of barbed wire, railroad spikes and countless screws, bolts, nails and tacks. The magnet gets its power from the generator and engine in the truck.

D

Gyre Makers

in Victoria's Reign

UNLOP experience of tyre making and tyre performance under every conceiv- able condition is longer and more varied than that of any other maker-even than the collective experience of all other makers. This is a plain statement of fact, and incontrovertible. Dunlop experience com- menced forty years ago when they made pneumatic tyres for the old high bicycles. Since then it has embraced tyre performance on every variety of vehicle on every possible (and impossible) road surface, in every part of the world. Dunlop have had more experience of road and track racing than any other maker. Dunlop can claim the supreme achievement in tyre history-the building of tyres 10r Major Segrave's 203.8 miles-per-hour Sunbeam.

Only DUNLOP Experience covers the whole history of the pneumatic tyre.

DUNLOP

Made in England

DUNLOP

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