1949-11-03 — Page 10

THE CHINA MAIL, THURSDAY, NOVEMBER 3, 1943.

ENGLISH

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A view of the interior of the Emitron Mobile Television unit control room as used for the continuous transmission of the Olympic Games 1948.

High Standard Of British

Television Equipment

By Sir ERNEST FISK

The scientific and engineering development of television in Britain is being pushed ahead today at a greater rate than ever before. Being the first country in the world to operate a regular public television service imposes on us an obligation to keep in the forefront of this vital modern development and, without hesitation, I say we are doing that.

It is widely recognised that the continuous trans- mission from the stadium and other placés of the 1948 Olympic Games by the British Broodcosting Corporation, with modern tele- vision equipment wholly produced in Britain, was one of the most outstanding achievements in the history of applied science.

This very efficient equipment Musical Industries Research La- was not merely engineered and boratories at Hayes, Middlesex,

fabricated in Britain, but it was in England.

well-known radio engineering firms.

Automatic Cleaning Device

When a belt conveyor operates at a coal face it is impossible to prevent particles of coal-"malls" -from (accumulating on the re- turn strand of the belt.

As the belt must be kept clean continuously, it has been usual, hitherto, to fit a plough at an

its upper angle between

lower strands to divert

and

the

"malls" to one side, and employ

a

man to load them on its upper

part

A new device, recently deve- loped by the firm of British Jeffrey-Diamond Ltd., Wakefield, Forkanire, England, performs this operation automatically. It is a ach-cleaning tail-

tail-end designed to remove the "smalls" spilt on to the inside surface of the lower part of the belt and return them to the upper part, thus preventing them from passing between the belt and the pulley.

Four-Blade Drum

Although developed for use in mines it can equally well be used conveyors. with above ground The device consists of a fabricat- ed frame enclosing a four-blade drum.

As the lower part of the belt:

the cham

and passes round

the belt is being rotates it slightly vibrated by the action of the blades, and as it passes to the vertical position the "alls" fall off the belt on to the baldes, eacm Small buckets, fitted of side of the drum, pick up the "smalls" and deposit then on the upper part of the bell

Triais of the self-cleaning tail- end were carried out for appro- ximately two years in three coal seams. At one colliery the tail- end was installed under a root from which tinuously.

water poured con-

At the present time, it is pos- sible to purchase in England a television receiver with a 10-inch diameter screen which produces Two Ton's An Hour a brilliant full definition picture

During a demonstration above COT- capable of being viewed fortably in broad daylight, housed ground, wet clay was loaded on to the return part of the belt and in a handsome walnut vencer cabinet. This is the greatest value was transferred by the buckets in the world for a high quality without difficulty. With a co- veyor running at 170 feet per minute, "smal

"malis" સ. ૩. rate of nearly two tons per hour can be

television receiver.

The self-cleaning tail-end will

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It takes only a few minutes to install VeeLink

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also entirely the result of British Many of the scientists in those All parts for television scientific research. Many hundreds laboratorics have, with the excep-ceivers. including the cathode rayhandled easily. of thousands of people witnessed tion of the war years, concentrat rubes which reproduce the pic- those epoch making scenes in their ed on television research for ture, are manufactured in British work equally well in wet or dry

the designs and every month the out conditions, on flat, inclined, or FIELD FORGE, RIVET FORGE, consequently have a knowledge and understanding of this comisaturated public demand

put is increasing to meet a large andulating surfaces, and it re Perhaps the most remarkable technical development of recent plex subject which is unexcelled years is the new British televiin any part of the world

homes within range of the televi-periods up sion station in London.

day

J

quires no attention apart from regular lubrication

United

Excellent Programme

Service

its most advanced forms, instead. highest quality but we are confor satisfied that the new

and

the most

-

sion camera, known as the CPS. Television Cameras Eritrom. in the world of en- Television cameras are not to It is true that in the gineering there is no such thing be confusgi in the mind with States there are more television stations and gives reproduction as a perfect machine, but the cinema or other photographic and more television receiving sets in home receivers equal in defin- C.P.S. Emitron camera is as near cameras. They work on entirely than in Britain and we know that ition and clarity to that of direct perfect for its purpose as present aifferent principles utilising the both the services and apparatus television camera studio work

Fil

be will

used increasingly scientific knowledge can science of electronics in some of in the United States are of the

television programmes, make it

This great British invention of the science of chemistry which vinced that in programme service, we are which during the next few years is the majur factor in ordinary as

as much as in scientific achieve British method of film scanning promises to revolutionise our tele-photographic apparatus, vision service is a post-war pro- The electronic camera for telement and manufacturing excel-provides the perfect answer to lence, British television stands the problems of film scanning for duct of the famous Electric and vision, and its claborate associated well in the front rank with its television stations.

techni- apparatus, is

is by far

Scientists, engineers, contempor respected American important mechanish

mechanism in day tele aries.

cians and manufacturers in the visjon gifton, After the camera Manufacturers of television ap- United Kingdom are working en- and the vision modulator, the reparatus in Britain, either for thusiastically in this great Beld mating apparatus in televi-

or reception,. can of ansmission

of enterprise with confidence that sign station is rather similar in produce equipment to the highest they can supply the knowledge, and bigh quality its engineering principles, to the scientific standards and the best experience

ing design

man- equipment

establish * workman-

and main engineering

and equipment in an ordinary broad engine casting station, and particularly ship for any type of television tain television transmission and to those using very short waves, service required, whether it be receiving apparatus to meet the such as

are employed for fre in the range of 400, 500, 600, ar requirements of all Government quency modulation broadcasting. 700 on

700 of more lines definition with and commercial television opera Britain's efficiency on the trans-

or negative modulation tors in any part of the world. mission side

television

ving sound on accompanying equalled by its efficiency and amplitude modulation or, genuity on the receiving side quency

modulation according to The admitted high standard of the requirements of

bents of Governments technical service from the London or other television operators in television station is

any part of the world. the quality of transmission ap- Another television problem

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25

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tion engineers, and to the excel-motion picture film, lence of British television re- This new. British invention ceivers which are manufactured | permits

use of standard and competitively sold by all the motion picture film at television

the

Radar especially designed for the British Land Forces has been shown for the Brit time at the Ministry of Supply: Ra--- dar Research and Development Establishment Exhibition at. Malvern, England. - This picture shows an- Experiment Officer watching the.. automatic platting of the trajectory of a mortar bomb on the Sperry Plotting Unit, ~ This Unit picks up the. tracks of mortar, bomba and from the plot which. Is Inked on the paper the position of the enemy firing point can be fixed": and counter fire brought to bear,,

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