1957-04-01 — Page 8

Page 18 13

CHINA MAIL

HONGKONG PUBLISHED DAILY (AFTERNOONS)

Price, 20 cents per copy.

Saturdays 30 cents.

Bubscription: $6.00 per month.

Porlager China and Macao $3.00 per month, UK., British Pornántiona and other countries $7.00 per month,

News contributions, always wal- come, hould be addressed to the Delitor, business, corninunications and kivertiaesjients to the Secretary.

Telephons: 26611 (5 Limwa).

KOWLOON OFFICE: Salisbury Road,

Telephone: SALAS.

MUSICAL

SPAIN LIVES the fingers of

in Andrea Segovia, the world's foremo@i guitarist, Listen to "An Evening with Negovia," "Moate the

of the Guitar", and "The Art of Segovia" Other Spanid tille avadiobio Jowo Green Ballet, Queen of tv

Gypides, A

de

Clavales da

Lapana.

THE CHINA MAIL; MONDAY, APRIL 1, 1957.

SCIENCE & ENGINEERING LATEST VENEER PEELING LATHE

Control Variation

By Speed Regulator

To obtain maximum output from a veneer peeling lathe it is necessary to maintain a constant peripheral speed of the log throughout the operation by accelerating the lathe driving motor as the log diameter decreases.

In an installation brought into use recently at the Willington Quay (Wallsend) work of Tyne Timber & Veeners Limited, the motor is under continuous automatic control by a Ward-Leonard system, the generator excitation being varied

Cuba 3 bull Modern duble by means of a speed regulator operated through a

Hole Agents for Montilla, D. EacU,

300 AlexaSUYA House, Telephonies 30100, 3500/1

TUITION GIVEN

=

ROCK 'N' ROLL, "1⁄2 d0 minutes!" Binpla American hytted. Learn Mambo, Cache, Tango, Charlton Топу qwakly Telephone Wong, o Woogieschong Road,

760041

WANTED KNOWN

HAUTST PIMPLANT 4.HAMEL

الواليد

u is h

tubu

it straks tw. Tolky!

frutt

disjiensan q

available and

stonew

NEW BRESHMAKING CLASSES-

Custo Mornings/afternoona/BVeungh, plete training on exiting, drafting. bowing tallering, Apply .--"Jyarı” QU Wongitelatong Hood, Happy Valley.

ROYAL NAVAL HOSPITAL -VACANCY

PHARMACIST:

•

SALARY.

$1,000 - 1,300 x 3 annua] increments then

$1,500 x +

to annual in-

crements:

QUALIFICATIONS.

Registered under Hong

differential voltage relay with its coils carrying voltages proportional to the motor speed and the position of the cutter bar on the lathe.

The lathe was supplied by Ritter, Fleck & Roller Mas- chinenfabrik A.G.. Hamburg. Length between chucks is 130 In and loge up to 79 in dia. can be accommodated. Venetak peeled with thicknesses between

0.001 mm and 10 nm at speeds. up to 700 per min.

motor

The electrical drive and con- trol system was supplied by The Cieneral Electric Co Ltd. The lathe

70 hp machine which takes its supplies a motor-generator sel 95 hp driving cumprising a motor, &8KW DC generator with are ult of 220/285V at 970 rpm, and a 5kW exciter.

A cubicle type

switchboard

houses the star-deltu starter for the MG set and the main items of control equipment. At the operwork position on the lathe

u panel is provided incorporat- ing pushbution controls,

fcat per minute mettr, and a speed- setting rheostat which enables the

speed at any maximum position of the cuiter bar to be selected according to the hard- ness of the wood being peeled.

Dressing Purpose

in

mloknum

After the motor-generatør set has been started and the clutch between lathe and motor closed, and Kong Pharmacy

the log can be related ut low Poisons Ordinance, Com.

by speed for dressing purposes pleted two years post operating an "inch pushbution

brings registration experience which

konerator excitation. and be under the age of

To begin preling, the clutch is 36 years.

opened and the "start" button a drum-type accelerator,

driven Applications in ENGLISH ind, nising

by a pilot candidates own handwriting motor, to operate the accelerat-

ing contactors.

The generator giving full particulars should

excitation is increased by cut- be forwarded with COPIES

ting out the "inch" section of its field resistance and the lathe of testimonials to the Secre-

motor rund on full Beld. In this

Inry, Royal Naval Hospital, Mount Kellett, before April 16th, 1957.

A. L. WALKER. Wardmaster Lieutenant,

Secretary.

Hospital,

Royal Naval

Hong Kong.

March 29th, 1957.

NOTICE TO CONSIGNEES

"ANCHISES"

Damaged corgo ex this vessel wit be surveyed by Memars, Paulsen & Hayes Davy at Holt's Wharf from 10 a.m. Du Aprit 3 and 4, 1953, and consalgete are requested to have their representatives present during the survey,

BUTTERFIELD & SWIRE.

Ageais.

Hong Kong. April 1, 137.

SAILS:

condition the clutch can be re- | closed, and the motor is speeded W give the selected peripheral speed for peeling by moving the culter bar up to the log.

Movement of the cutter bar chain-driven rheostat operates u which, in conjunction with the speed-setting potentiometer, ad- justs a reference voltage across Í one coll of a differential voltage

relay.

The other relay coil is connected acruss the Lacho- generator on the lathe shati,

Relay Contact

motur

When the reference voltage. exceeds the ticho - generator voltage, the relay contact moves to operate a raise-speed con- tator which starts the speed re- gular plot moter running in

the required direction uasi balance is obtained. The moving

*

Arm of the speed regulator controls the same generator and motor field resistors as are in- volved in the action of the drum accelerator before the automatic Control is initiated

by move- ment of the cutter bar.

P.O

R.M.S. "CORFU"

NOTICE TO PASSENGERS

BAGGAGE:

Wednesday, 3rd April, at 12.00 NOON for the UNITED KINGDOM, via Singapore, Penang, Colombo, thence via the Cape of Good Hope.

Passengers are requested to sond ALL BAGGAGE to the Hongkong & Kowloon Wharf Co.'s Godown No. 2 GATE, CANTON ROAD ENTRANCE, By NOON ON TUESDAY, APRIL.

2nd

SPECIAL NOTE: With the exception of hand packages carried by passengers themselves, ALL BAGGAGE must pass through the Wharf Co.'s Godown for loading on board by ship's slings only.

EMBARKATION: Passengers, should embark betwo

9.30 AND 11.00 A.M. ON 3rd APRIL, 1957.

Subject to Alteration With or Without Notice

મ

If the tacho-generator voltage exceeds the reference voltage, a

"lower-speed" contactor

motor operated and the plot runs in the opposite direction until bolance is agoin obtained. The motor speed is therefore

controlled closely

throughout the peeling operation by a com- bination of generator ahd motor field adjustment,

When peeling is completed the clutch is opened and the motor is stopped by pressing the motor "stop" bultón. The speed regulator and drum accelerator then both run back to their starting positions,

the

core-

it either of the Energency

pushbuttons step

Is operated. the drum the motor stops and accelerator returns to its "off" position, but the speed regulator remains at

Betting sponding to the speed

Appro- of the priate to the position entler bar. On restarting, there- fore, the accelerating contactors Lo rapidly bring the motor up this speed and the clutch

may be closed to resume peeling.

Veneer peeling lathe at Tyne Timber & Veneers Lid, with GEC drive incorporating automatio

spoed variation to compensate for the diminishing diameter of the log.

Microwave Power Has Many Uses

The

radar

near

Other techniques be produced.

accelerators use pulsed power in a different way, producing very high energy protons.

developed in Britain during the war have since been applied in numerous important ways in science and industry, said UK Cock- stom scientist Sir John crott during a

the lecture to Radar Association In Britain recently,

The microwave power hus been increased a

the most precise time keeping Instruments of our universe.

Short wave radiation coming to us from the sun, stars and distant nebulae is collected in paraboloida of the kind used on OBIT

ammaller scale in radar, and wood to Identity solor and celestial events. They record the passage of sunspots, the stellar fusion bomb explosions known as

supernovae, and the collision

galaxice. thousandfold and a single valve can now develop a pulsed power of

20,000 kilowatts,

This great power can be used 10 produce travelling electrical made waves and electrons are lo "surf ride" the wave, getting

So speeded up in the proceSS. very high energy electrons can

MANDRAKE THE MAGICIAN

MARGE, NEITHER LOTHAR NOR KNOWS ANY MORE ABOUT THIS PLACE THAN YOU DO NOTHING. DID YOU WRITE THIS??

FERDINAND

NANCY

WHERE

15 NANCY

WRITE

WHAT?

UPSTAIRS SHE HAS TO PRACTICE HER VIOLIN

LESSONS

JOHNNY HAZARD

REAL SCIENCE-FICTION DEAL, EH,SCOTTY? WHEN PO THE LITTLE MEN FROM OUTER SPACE TAKE OVERT

'ON BROWN'S PASTURE, THIS NOTE WAS TOSSED OUT OF THE FOS-FROM THIS PLACE, I GUESS

RIGHT ABOUT NOW, JOHNNY! FROM HERE ON OUT THIS BECOMES A-JOINT AIR FORCE-. ATOMIC ENERGY COMMISSION OPERATIONE

COME WITH MEI

HELP

HMM ---SHE'S IMPROVING

THEY'RE ALL YOURS, COLMARION!

Microwave techniques are now used to measure time Intervals with a precisium of a thousand

second, millionth of a

They have been used in some of the most fascinating experiments in modern physics, which showed thot

short variety of lived atomic particles called anti-protons and anti-neutrons can be created.

new

to

Radar techniques applied to sound waves are used to detect gawa in metal rods or castings, determine cavities in salt fields, to detect shoals of fish,

radar Continuous wave used extensively in the United States for detection of speeding molecules and have enabled us* moloy cats, Similar techniques

are used to detect burglars.

They ore determine

the

also used to

structure

of

to develop molecular clocits

Os

| OH, DEAR, ARE WE ON,

NO, I DIDN'T WRITE THAT.

ANOTHER PLANET→

FOR WHAT?

CHECK! FIRST YOU'LL FLY TO OUR SECRET AERO-NUCLEAR BASE FOR INSTALLATION OF THE NUCLEAR POWER-PLANTI

HERE ARE YOUR SEALED DIRECTIONS!

I DON'T

KNOW

By Lee Falk and Phil Davis

By Mik

By Ernie Bushmiller

By Frank Robbins

THERE YOU'LL MEET YOUR THIRD MAN, WHO WILL BE WITH YOU ON YOUR GLOBÁL TEST FUGHT I. HE'S TRAINED IN NUCLEONICS AND AERO-MEDICAL, RESEARCH → Hill, BE YOUR MOTHER, FATHER AND RANKING

OFFICERA

13

LARGEST COAL TRANSPORTER

AT TILBURY

The largest travelling transporter in this country is now in full operation at the Central Electricity Authority's new power "station at Tilbury, England.

The transporter, which was designed and built by Mitchell Engineering Ltd, of 1, Bedford Square, London, WC1, can spread and reclaim coal from the store at an average rate of 800 tons per hour. The normal average depth of coal in the store is about 20 feet, giving a storage capacity; of about 165,000 tons.

The

D-ton

transporter bridge is the other. The main bridgo is arranged to operate on tracks designed within gusset plates. 275 feet apart and has a travel- The hinged leg deals with slight ling speed of 3244 feet per irregularities on the track and minute. The bridge is equipped provides for the expansion på with a man-operated transporter the bridge. To allow the belize carringo fitted with

to travel the length of the, store capacity grab. The cross speed ground, each leg is mounted on of the carriage is 700 feet per four two-wheel bogles.... Tura minute and the bolating speed bogies on each leg have travel- of the grab is 150 feet per

ling motors which dive througha minute,

spur and reduction gear,

The control geur for the long travel

of the bridge le in cabin

on the Axed leg. ·To make sure that both legs travel equally an alignment gear is provided and is operated by goare and cross shaft from อ trolling wheel on each side of the bridge.

Automatic Gear

From the initial pile formed by the travelling wing tripper, oal is spread and trimmed over the store by the grab which also reclaima coal from the store and delivers it to the reclaiming conveyor through a receiving hopper and belt feeder located on the Oxed log of the trans- porter bridge.

cach of

Control Panel

Any mis-alignment of the bridge is shown by an indicator Two sets of thruster-operated

on the control panel and, if this clamping gear are provided on

15 not observed, a limit switch the bridge to bold It

will cut out the travel gear if securely In position

when the bridge moves more than This gear L necessary.

three inches out of ilne, ' automatically

and la operated applied immediately

current is cut off from the travelling motors. It is released before power can be re-applied to the motors.

bow

The transporter bridge is of

string type construction and is supported by a fixed leg at one end and a hinged leg at

There's More than Magic

about?

CADBURY'S

#. Burt

12.61 9

They're Wonderful

CUTEX

LIPSTICK

AND

NAIL POLISH. They always harmonise

ROWNTREES

IT'S THE FULL

BREAM MILK THAT

JAKET MONTREES ONTRUCE 20

DRUSKY SAID!

MILK CHOCOLATE

..this situation calls for a

San Miguel

The main current supply to the transportor is through a specially designed cable reeling drum with three. flexibla multicore cables connected in parallel. This drum is operated by a counterweight system and works in conjunction swivel type ground plug boxes with

placed at intervala along the track.

The

The travelling carriage Is bullt

up of rolled steel sections securely braced and riveted to- gether to form a complete frame to accommodate the mechanical units and is supported on four travel bogies, each arranged to accommodate two cast steel trod wheels equipped with ball bearings,

The

grab is of the four-rope type and the hoisting winch operating the ropes is mounted

on the travelling carriage. Separate drums are provided for the grab holating and grabi closing ropes respectively,

AIR-COOLED DIESEL FOR LIFEBOATS

A glass fibre. lifeboati with its engine running wis lowered from a ship in Lon don docks recently and was away from the vessel's aide immediately it touched the water, writes the LPS, shipping correspondent,

Because, it is essential that'a lifeboat should be ready for instant service in any weather, the recently-introduced Petters 12 horsepower air-cooled diesel, with its ability to be started and running while still in the davits, has proved ideally suited to a lifeboat installation.

Maintenance of air-cooled diesels

also considerably. simplified through froproved-ac- comibility, and inboard starting enables the engine to be bestedi frequently without having to lower the boat into the wader. or make special deck arrang. ments for cooling.

These, engines Also eliminato troubles arising from froeding or dirty water supplies. In addition they have an overall weight saving of about ten, per cent over water-cooled chilenols, Water Problems

The Increasing treng for air- cooled engines in ships litboats

is due to the lack of water circulating "probleuis which sno- count for at least 30 per cent of maintenance tasks,ZANI

Complete versatility with air- cooled diesels is provided in alt climatic conditions including an air temperature range of minus five degrees Fahrenheit to degrees Fahrenhelin and alderable overpen being attracted by this engine. More than 150 18-* powered by the engine, ready in servic (the "makers of the ter have available a specialist opgineers &

countries.THE

technical training

för "130" arthetoi ibroussout world Epator for engine, ara abayady, wyblable bemotionlly levery opuner