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Hong Kong Birds
Herklots, G. A. C. 1953. Hong Kong Birds, Pp. +233, 11 pla, 8 in colour, numerous black- and-white drawings in text. Hong Kong: South China Morning Ltd., HK$35.00.
Port,
Bro
H ...a most welcome handbook for ornitholo- gists resident station- ed in Hong Kong All the hitherto recorded species included; plumages are clearly and concisely described, and short account is given of field characters, valce, habits, status etc.The Ilustrations, except for three plates of photographs, are all by Cir. A. M. Hughes,
and include four attrae- tive plates of the heads of 42 species and many useful - trawings in the text The writer of this
|
THE CHINA MAIL," MONDAY, APRIL 29, · 1957:1:"
SCIENCE & ENGINEERING
BRIGHT ANNEALING
Latest Electric Furnaces Give
Better Finish
New electric furnaces have recently been added to the plant installed at the Courtybella Works of Whitehead Iron & Steel Co. Ltd. for bright annealing coiled steel strip.
This installation is now the largest of its kind in Europe. It totals 37 vertical cylindrical furnaces and 248 annealing containers, all designed and supplied by The General Electric Co. Ltd.
and
The first furnaces, installed form
placed cir- more than 20 years ago, were cumferentially round
the in- used for the Grunewald bright sido
wall of evich
furnace annealing proces. The charge in grooved refractory material. was seated in a container and These elements are arranged in during the initial heating period two circuits with alternate colla
in each circuit. Air was expelled through a non-
One circuit is return valve due le expansion arranged to cut out just before and to the vaporisation of the the required furnace tempera- rolling lubricant left on the lure is reached. strip. The cooling of the charge was thus carried out in a partiul de- the bright finish vacuum, pending upon the absence of an oxidising atmosphere,
NEW PACIFIC LINER
HAS BROAD SYSTEM
PLANT OF COMMUNICATION
GEO vertical cylindrical furnace Installation for bright annealing steel strip at the Courtybella Works of Whitehead Iron & Steel Co. Ltd. The new furnaces and associated annealing con- tainers are in the foreground.
stacked
Comprehensive systems of communications equipment and radio aids to navigation have been fitted in the new Canadian Pacific liner Empress of England, 25,500 tons, by Marconi Marine.
Two entirely separate radar installations are provided-a medium-power Quo Vadis XII equipment with a 12-inch display unit mounted in the wheelhouse, and a high-power Radiolocator IV with a 15-inch display unit in the wheelhouse and a 9-inch remote display installed in a Radar Plotting Room.
Meteors As Radio Boosts
The two wheelhouse displays are mounted side by side on the starboard side so that compari- sons between the two presenta- tions can be mado quickly and casily.
The communications instal. lation is designed to meet all re- ouirements for transmission and reception on the marine medium, intermediate and high frequency telegraphy bands, and also pro- vides for intermediate and high
In the Radio Physics Labora- frequency telephony opera- lory at Ottawa scientists of the tion for passengers' Canadian Defence Research and
messages
RADIO-TELEPHONE
in-
There ship's trafic. Board have been conducting ex- are three telephone booths on periments with an exciting now board-one in the First Class communications technique which and two in the Tourist Class ac
ship's the employs meteor trails to trans-commodation-and mit radio messages over long internal telephone system can be linked with the mdio-telephony distances.
Installation Complete privacy porting the charge which la The preheating is carried out in The controlled atmosphere for
Some details just released of of conversation, is ensured by lined recuperator pits, the complete installation is sup the on a base casting of brick Power Input
new technique, called the provision of speech heat resisting cast iron. This each accommodating two hot plied by GEC. plant
Installed JANET.
show that the foalsed versión equipment, casting is then mapended from containers cooling down and In a central gas station. The tralls of numerous tiny meteors, This 50 per cent reduction in the pol-head by heat-resisting two newly charged containers total atmosphero consumption is some no bigger than a pin-head, power impul gives line control suspension bara, The weight of to be prehosted. The hot con- some 1,500 cu. ft. per hour and are used to reflect radio signals of temperature, whilst stu
being thus carried by tainers are The
charge
placed diagonally this is supplied by three maintaining a uniform heat dis- the pol-head, the body of the opposite each other. A con-
CTS. Two further gos gauge heat-resisting steel to consumption is cffected in this maintenance to be carried out and the GE.C, therefore decided Gold excess temperature fuses
each element el pro mare Alted
promote a rapid heat transfer
The pipework is so to introduce n controlled arti-
arranged cult, these fusca being connected from the furnace to the con-
that any of the burnera may be ficial gus atmosphere, generated in series with safety switch tainer and hence to the charge.
used with any compresIOT, from ordinary town's gue, in fitted to
each furnace top to subsequent installations.
A gas tight seal is effected further furnaces were installed ensure that the element supply
between the container and the modified is disconnected when an anneal- the containers were
Ing pot is removed.
head by means of a rubber ring, kept cool by water flowing in a channel round the top of the container.
Although a perfect and un- form anacul was obtained
the
buan-
Anish was not consistently good tribulion in the vertical plane. container can be made of light siderable economy in electricity are Installed to permit se lo far distant receivers,
When
to permit the use of a controlled atmosphere. Since then the of the quality and uniformity anneal
superior bright finish have
been consistently maintained.
and a
tures.
are The twenty-four furnaces served by six automatic tem- each control pancis perature
and controlling four furnaces, recording their charge tempera-
The bright annealing plant s
of the annealing A feature arranged in two parts. The first containers used with these one was completed in 1940 by furmees to the method of sup- which time 13 G.FC. vertical cylindrical furnaces, with a full complement of annealing con- talers, had been installed. These furmees take annealing con- tainers with effective wading diameters ranging fromm 20 in. to 44 in. The bright annealing atmosphere is supplied from G.E.C. town gas burners stalled in a central gas station.
Second Part
דימג!
in the second
The installation there are sixteen furnaces which have been in operation for ten years. These furnaces take containers 74 in. deep with effective loading dimensions of 36 in. and 44 in
13
Now eight more GBC. ver- tical cylindrical furnaces hava been added to bring the total to twenty-four which, with re- cuperated pits to house forty-
containers a eight
and cooling
pits to house
ninety-six containers, occupy a flour
space of nearly 10,000 sq. ft. The eight new furnaces are ench rated at 150 kW and take containers with effective internal dimensions of 44 in diameter and 86 in. depth.
The furnaces are heated by: heavy gauge nickel-chrome wire olements, arranged in coil
Sterling Sub-Machine Gun
Visitors to the 1957 British Industries Fair (Castle Brom- wich, Birmingham, May 6 to 17) will be able test for themselves the accuracy of the Sterling sub- machine gun.
00
Gun and targets will be elec- tronically-controlled,
that when the user is aiming ac turately, the fact will be ro- gistered by a dropping target. e gun, on which development begun towards the end of World War II, is now being supplied to, or being tested by, over 40 countries.
It has both officially adopted Tovidw would have
Me by the United Kingdom Govern- benelled greatly from
production of the this book when station-ment, and
weapon for the Canadian Armed Forces is to bedn. in Canada, under licence, this year. Trials India, New
es in Hong Kong some jeans ago. Even now,
on referring to it, some of the Sterling are now being 48 unfamiliar species held in Australia, on which notes worn Zealand, Pakistan, the Union of made at the time have South Africa, the Federation of almost all proved oudly Rhodesia and Nyasaland and identifiable, D. W. many other countries, including (Kxtract from. “Zha Ibid, amfolgt | the Federal Republic of Ger- organ of the Brilleh Ornithologiela meny. Union, British Museum).
C. M. POST
HONG KONG
Deolgners and manufacturers are the Sterling Engineerlag Company Ltd, of Dagenham, Essex, England, who will be exhibiting the weapon at the
KOWLOOK KES
way.
Purged Of Air
Charged containers are purged
Two Globespan transmitters These minute particles occur and two Atalanta receivers are approximately 60 miles abova employed In this service, fo- the earth's surface but, because gether with a telephone terminal so small, they can assembly which incorporates A they are each be used for only about a third Atalanta receiver and the second. Transmission, therefore, speech inversion unit. One of In the past the works have is in short bursis at very high the Globespans will be used of air during preheating and a
annual ecda. not closed during the
information mainly for telegraphy whilst the Incoming flow of controlled atmosphere is holidays and both installations la stored and printed at normal other will operate the radio- maintained throughout the heat have operated continuously since speeds during the intervals be- telephone service, but the instal-
time. Tho
their creation.
lation provides for rapid change- ing
Last year with tween transmission bursts.
The experiments have proved over of transmitters and To the closing of the works, the controlled at temperature be-
of the installation that signala can be transmitted ceivers to either service as re- carly part tween 780 deg C and BOD deg Heating time var
varies
according had its first complete shutdown clearly and safely over ditsances quired.
miles despite the In all this time up to 1,000 to the weight of a charge and in 20 years. of
interference that of the steel strip treated atmospheric the wall thickness of the colls, none
alects normal a typical gure being 12 hours in the G.E.C. furnaces bas been often adversely
rejected due to faulty annealing, radio communications. for a 4-ion charge.
is an im- Heat recuperation portant feature of both the in- stallations, the heat content containers newly removed from the furnaces being used to pre- heat freshly loaded containers,
MANDRAKE THE MAGICIAN
"SO, AGES AGO, MEN DESTROYED THE TIME MACHINES BECAUSE THEY BROUGHT DEATH FROM THE PAST --
FERD'NAND
NANCY
TWO ICE
CREAM CONES
DESTROY ALL
TIME MACHINES.
TIME TRAVEL FORBIDDEN.
THE EDICT WAS FLASHED AROUND THE EARTH~~
LOOK--- THERE'S
A PARADE PASSING
BY
JOHNNY HAZARD
CAN'T FIGURE HOW ELLEN KNEW TO ADDRESS THIS TO THR GEGREY ABRO÷ NUCLEAR 'BASE, BUT....... MAYBS
THE LETTER WILL EXPLAINI
BILEN'S CLASS
RING!?
furnaces
WE'VE HAD NO TIME AFTY MACHINES FOR FIFTY CENTURIES! CENTURIES--UNTIL I MUST THIS NAUGHTY BOY/REMEMBER MADE A TOY!
THIN 52000AD
'HEY¬--I CAN'T
HOLD THESE
ALL DAY
C.
By Lee Falk and Phil Davis
DID THEY EVER TRAVEL INTO THE FUTURE-- YOUR FUTURE?
+
ONCE OR TWICE, NONE RETURNED
SO THEY GAVE
iT UP.
| TOMORROW:LIFE IN £2,000 AD.
By Mik
By Erale Bushmiller
ERNIE-
By Frank Robbina
ON SZAKÁLN ISLANDÍ
YOU'VELLIE HOF LIFE, FLSÄSEM
There's More than Magic in
Provision has also been made for the simultaneous operation of the two high power tran- smitters. The aerials have been sited for maximum separation between transmission and re- ception, and special transmission rejector circulis have been incor- porated with the receivers.
The Reliance emergency radio installation also includes receiver and an automatic key. ing device mouted with switch- ing arrangements for power sup-
FRY ENDURES piles and battery charging.
They
are Delicious
CUTEX
LIPSTICK
IN THE
LATEST
SHADES
ROWNTREES
YORK
"CHOCOLATE
A FAMOUS NAME IN CHOCOLATE
‚this situation
calle
for m
San Miguel
NAVIGATION AIDS
Additional emergency equlp- ment includes transmliter/ receiver equipment installed in a Class A noter lifeboat, and a
portable transmitter/receiver. which can be carried to any. boat.
Radio alds to navigation in- clude a gyro-stabilised long- range direction finder which is installed in the wireless room, The radar equipment is on a Ecale in keeping with a vessel of this class, and a special housa has been constructed above the bridge to accommodate the two marina radar transmitters with thair motors and starter equip- ment. The radar house has been designed to fit in with the con-. tours of the bridge, and the two БСОДАСГА are mounted above it. Marconi International Marine Communication Co., Ltd. Marconi House, Chelms- ford, Essex, England.]
DOUBLE DUO ROLLING MILL
A new 10% inches
Double
Duo type rolling mill has been Installed by Kayser, Ellison and Company Ltd, of Shallaki, Enge lanki, which is claimed greatly
to increase productivity without sacrifice of anyt "of the, close. tolerances on site,
The Mill rolls・・ sizes from 1⁄4 inch up to 14incheu dia- meter, as well as section bind flats up to 2% inches wide. It has universul couplings; and Farval Autornatte Roll-neck Lubrication. The design of the Roll Stands provides for the in- stallation of roller bearings, at some future date..
Roll Change Strids are em- ployer for rapid change of rolima ing prograrpine; the sandanre Afied complete on Change, Stand Bedplates away from the. Mil. A pens Roll Tupare the be been equipped to serve fala and other of the company'a milla, y
Kayser, Ellison and Company Ltd, are ono" of the
United Kingdon bekukee who can produce in their own plein dery- thing from ingbhi to' cold, drawin Pwede dawndonandthefor
i
-PLAT