1925-11-28 — Page 8

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THE HONGKONG TELEGRAPH, MOTORING SUPPLEMENT.

Solve Belting Problems

Goodyear Transmission Belts, properly applied, will successfully and economically solve the ma- jority of your transinission problems.

They are designed to reduce operating costs in industrial plants and they represent the highest development in transmission belting.

Goodyear Transmission Belts are built to give powerful and trouble free service, under the most exacting conditions.

On your drives-they will wear a long, long time.

Goodyear Means Good Wear

GOODAY

YEAK

BELTING HOSE-PACKING

DISTRIBUTC RS.

THE PLAIN MAN AND HIS CAR.

IV. THE TRANSMISSION.-Concluded)

By P. W. F. Mills

SATURDAY, NOVEMBER 28, 1925.

road shocka without straining the shafts transmitting the drive, There is also a small amount of twisting in the frame itself under the many loads to which the frame is subjected on average roads, and universal joints are absolutely uncussary:

The commonest type of univers; sal joint found un modern cars is what is known as the composi-

The Differential Gear. As mentioned in a previous article the action of the differ- ential gear, which la hidden from sight in the rear axle casing, is often difficult to understand. A portion of the difficulty arises

from the fact that from reasons:

Movement of the sliding mem- It is proposed to deni only with tion disc type. The drive is bers is obtained by squaring or mechanical features of the trans-taken through dises of thick "splining" the portions of the mission at present, such operu-composition material which are shufts upon which sliding mem-tions na gear changing being more almost as rigid in the plane of hers are carried. Splining is the conveniently degeribed later in their peripheries as the shaft name given to a method of cut-considering use of the controls itself would be. In the plane of ting shafts and the hubs of mem- nnd driving. But it may be re- their axes, however, they naturally bers carried upon them in such marked here that it la difeult at flex a certain amount under way that while it is possible for all times to cause the teeth of two strain. Even when the shafts the members to move longitudinal-year wheels to engage without connected by a universal joint ly on the shafts it is impossible excessive noise and stress unless make an appreciable angle with for them to rotate unless the the wheels are rotating at speeds each other the drive is trans- shafts rotate also.

which more or less, accurately re-mitted from one to the other with Formed on the hub shells of the present the proportion between little logs of power,

the number of teeth on each. It sliding members are collary (marked R in the drawing) in will be seen later that the prin which lie stationary pins attach- cipal object of the rules laid down ed to arms on the Gear Selector for quiet gear changing is the Rods. These pins and arms, and bringing about of this state of the gear selector rods themselves, affairs for the wheels which will are not shown in the drawing, for assume the driving strain when the sake of clearness. Study of the new gear is engaged. the drawing and the movements described in the previous article will make it clear that the sliding members are the wheel E and the unit of two wheels H, both mem- |bers being carried on the Gearbox Main Shaft. Thus two selector rods are required, and it is neces- sary for each selector rod to re- turn to "neutral" position before; the other rod is operated by the gear change lover. This system of operation by selector rods is common to nearly all gear boxes, whether box provides four or only three speeds in addition to 'reverse and the change over from opera- tion of one selectar rod to opera- tion of the other usually takes place as the gear change lever is passed through a "gate" in the gear change "block," On a num- ber of care no "gate" is visible, particularly when the gear change block is located on the top of the gear box itself, which is often

ALEX. ROSS & CO., (CHINA) LTD.ossible when the lever is situat-

Bank of China Building Hongkong.

centre of the enr. What- ever the details of the gear chang- ing mechanism control the prin-i ciple is the same.

How Studebaker Can Keep Quality Up and Prices Down

TUDEBAKER can pay a 15 per cent

obtain extra toughness→→

Studebaker can completely machine its crankshafts at an annual cost of £120,000, to reduce engine vibration to a minimum

Studebaker can use the best Northern ash and maple in ita body frames, to ensure long life in the bodies and to prevent squeaks and rattles--

Studebaker can follow these and many other costly practices without exacting high

Studebaker

JEA

prices, simply because Studebaker makes every vital part used in Studebaker cars and thus eliminates the profits of outside makers.

One-profit manufacture! Only Ford in the low priced field and Studebaker in the fine car field offer one-profit values.

For endurance, fine performance and all- around VALUE, see the one-profit Stude. baker before you buy. There are 19 body modela all powered by six-cylinder engines.

STUDEBAKER, South Bend, Ind., U. S. A

THE HONGKONG HOTEL GARAGE QUEEN'S ROAD. TEL. C.4759.

Studebaker Standard-Six Duplex-Phaeton

STUDEBAKER

BUILDERS OF

GAS POISON CURE.

Brouthing of carbon dioxide Tather than pure oxygen or air is recommended to cure carbon monoxide poisoning by Dr. J. S. Haldano of the Institution of Mining Engineers. Ho said car-i

QUALITY

VEHICLES FOR

73 YEARS

No carbon deposit from spray- ing oil is suffered by this form of The double annular spark plug.

PW.FM

The Clutch.

P

W

E

CLUTCH

of strength it is usual to have

There are a great many detail as many wheels transmitting the

worm wheel variallons in the clutches found drive from the

01'

on cars, but they all demand fric-bevel "crown wheel" to the wheels! tion surfaces of considerable area. mounted on the live axles us poe- Each of thesc wheels Not all clutches are situated in-sible.

01

are

side the engine flywheel, but this follows the motion of the remain- unit lends itself naturally for the der. and a differential gear might purpose and has the additional be constructed of one doating advantage of being located almost wheel only, were strength and directly underneath the control balance not important factors to pedal footboards. If the lywheel he considered. The system rim is bevelled internally and compensation", found in the rotating member is arranged so brake control system of all cars that its surface, also Levelled, in which two rear brakes may be made to bear against the operated from one control will be inside of the flywheel rim it is familiar. In a differential gear only necessary to secure of requir-the same system is applied, except! ed coeficient of friction and suit-that in this case it is applied to able pressure maintaining contact wheels rotating through full cir- between the two surfaces for the eles and not only to hinged levers. two members to rotate as one The action of the diferential unit. By Arranging control is entirely automatic, and nothing mechanism to vary the degree of short of fracture of the parts can contact and the pressure between prevent its automatic function- the two portions of the clutch aing. All that is necessary from means of gradually connecting or the standpoint of the owner or disconnecting two sections of the driver is adequate lubrication. transmission line is obtained. Some small cars have been built The general arrangement of a without a differential gear, hat "cong" clutch is shown in the not successfully, and on heavy ¡ drawing. A is the flywheel rim, cars, where the load on the tyres B the driven member, which is is considerable, a differential is attached to the Clutchshaft E and altogether necessary. carries on its rim the friction fabric. S is one of the springs which maintain contact between the two surfaces, W represents the withdrawal mechanism (shown for the sake of clearness in an

LAW HELPS TRADE.

RESULT OF NEW LEGISLATION.

extremely simple form), and P is A booming business in accés. the control pedal projecting sories has resulted from new traf through the car footboards. The fic laws that have just gone into combined radial and thrust bear effect in California.

ing upon which the driven mem- ber rotates and which serves as an anchorage for the spring S is shown at C.

▼

In the first ten days of its enforcement, the revised hend- light law has brought more than 10,000 customers to the automo-

The new

In a cone clutch of the type tive equipment stores for new shown the friction fabric will be lenses, reflectors or head-light leather or an asbestos composition globes in order to conform with such as Ferrodo. In the "plate" the statutes. At least this num- type of clutch, where the frie- ber of drivers was stopped by the tion area is much greater, the sur police and told to get their head- faces are hardened steel plates. light adjusted or to buy new They may run "dry," or they may equipment. run in oil: both systems are in common use. An advantage of throwing the latter type is that a consider. cigarettes, able amount of "slipping" may be

ashes indulged in by the driver without hus particular damage to the clutch, demand This treatment should be careful these Federal and state highway ly avoided if the clutch is of the not only to automobiles, but to officiala are working on a system leather type, and it is not advia-street care, railroad coaches and

able eyen with a clutch lined with wagons, for designating the principal auto-nsbestos fabric. mobile routes over the country. There are at least 256 named

ROAD CONFUSION,

-

law that prohibits lighted cigars, matches or even from 2024 automobile brought

increased containers for This applies

J

for articles.

Another new law that has been a godsend to automobile Universal Joints.

accessory dealers is that forbid- These are inserted at suitable ding the carrying of baggage routes and 97 different associa-points in the transmission line beyond the line of the hub caps bon dioxide will expel the ring construction is so arranged tions, each promoting one or in order that the latter may on the left side of the car. The monoxide gas much more quickly are running cool and 30 prevent more named highways in the as to gathor heat in engines which

carbon from depositing.

than either air or oxygen,

Au

United States,

bility which enables the rear axle luggage carriers for the rear of

possess a certain amount of flexi- result has been increased sale of Ito move in a vertical plane under cars.

B. S. A.

MOTOR CYCLES

Famous For Reliability and Economy

Full Particulars from the Sole Agents:

THE SINCERE CO.

SOCONY

SOCONY

MOTOR OILS

AND

GASOLINE

Rudge-Whitworth

FourValve.Four Speed

MOTOR CYCLES

NEW STOCKS ON HAND.

די

ALL ELECTRICALLY EQUIPPED 5.48 H.P. $485.00

4.99 H.P. $525 4.99 H.P. Combination $775.00

RUDOLF WOLFF & KEW, LTD.

54. Queen's Road, Contral.

Fbone C. 2173.

"Where can you get "THIS" for the money other than in

an "AUSTIN SEVEN,"

4 cylinder engine,

Electrio starter,

Balloon Tyre,

Two adjustable seats,

Flectric, Horn, Four Wheal Brakes Shock Absorbers, Spoedom'ster.

Automatic Oiling and gresso gun system

All those features are embodied in the best small car in the world

THE

IN SI AUSTIN SEVEN

SOLE AGENTS;

Alex. Ross & Co., (China) Ltd.

SHOW ROOM. No. 1A, CHATER ROAD OPEN SATURDAY AFTERNOON TILL S O'CLOCK.