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SCIENCE
THE CHINA MAIL, MONDAY, MAY 21, 1958,
ENGINEERING
NOVEL TECHNIQUES THAT AID BUILDING
CONSTRUCTION
British Industries Fair Will Feature Latest In Materials And Supplies
By PHILIP MARSH
WITH around £1,260 million worth of new buildings under construction in Britain last year, it is hardly surprising that new processes and materials 'should find growing application—and receive
thorough testing.
build-
now
Such projects no the $50 for such items as storage racks million New Barblean scheme, and benches, but also p9 B which aims to supply the City Dauerwork for complete
London with a self-contained ings. This material enty" (including underground being turned out, either in steel warehouses,
shops, offlers and
or olumkilum alloy, by eight tals, and the Londna County companies in Britain, Council's £7 milion Crystal Palaca schome, open up exciting new bukling vising,
Even
uf
Another new constructional material is "Tr:sec". મૈં cold rollesi triangular section which more important, per-
can be used in solving a number haps, thway polat the way to widening appreciation of archi-
constructional problems, tectural possibilities among lay simplifying crection by largely | men whileli will, in kurzy,
doing nway with Axings or Several stetional rent- welding still furling courage
folding systems are offered. niculation
One, using techniques.
"No-Bolt" rust- Behind all this progress 19
proofed steel scaffolding couplers I search
wiuen and cuptive wedges, only needs Pitain's Building
Axing Research a hammer for mitial ation has made a big contri- dismantling. nation. It has, for instance, arried out valuable work
E
exper British building
مالی کوری
pre-stressed concrete-one of the
as-
OT
As wol!
skilled 35 saving labour in muny
Instances the new persus save time as well.
frame-
newer structural materials and A case in point is Wailspan" on heat insulation, and has de- which consiats essentially of vised a method of utilising the gild, composed of horizontal muddy-divided ush produced by and vertical Bluminium alloy
stalions
burning pul-
which Comparents,
Is simply verised soal in the manufacture bolted to the structural of building
ne bricks. another Held, as u result of the Station's development of the single-stack system of serted drainage for blocks of this the London area, saving about 40 per rent was effected in the oust of pipework.
of
The evolution of new supplies methods has, of course, gone on side by side with the maximami 115€ of traditional materials, Britain's brick pro- duction is now Around 7,000 million annually, cement output Is at a record lonnage, plaster-
at ward is being produced
ate of $5 million square yards a year.
With Its good wearing qualities. asbestos vemment growing In popularity in the corrugated roofing
گردم
it
sheets and coin water goods.
As an alternative to lead and invin pipes copper bus had certain vogue
kinke, although
used expensive, it can be comparatively thin gauge. Her though, corrosive-resistant poly- thene tubing presents Another alternative: and vne supplying it in all stradurd sizes up 19 12 inch.
★ #
SIGNIFICANT advance L
LA
A the Introduction by the Ruberoid Company, 1-19 New Oxford Street, London, WC1, of reinforced glass Bbre bare 1901- ing. It is completely neri, and to ensu
good tensile strength the fabric is strengthened with a pattern of additional glass re- Inforcement speed at one fuch intervarts.
From another company, Senka- Products Lad, Hythe Road, London, LANDO NW19, comes a new mortar plasticiser which, incor- porated into a mortar or ron- dering. increases Ils strength and density.
One of the mosi versatile building metals is aluminium, and British metallurgists and big engineers have played part in recent years Iri
ม
A
pro-
ducing H wide range of new alloys.
Aluminium's low weight and high corrosion resistance
have made it ideal for temporary buildings, such as the "pre- fabs" which helped solva Britain's post-war housing prob- Jem, and laid the foundation for an entirely new export industry,
Apart from
om its use
4113 wall cladding. it is favoured as a medium for sheets, roofing chimney aprons, gutters, step and ver
vent pipe flashings, bay and
canopy tops,
One United Kingdom firm is Currently menufacturing alumbalum building sheet in- corporating a simple map-joint along
the full length of over- tapping
corrugations; while an- other markets a cladding which la fixed to the roof on principle of zip fastener, climinating nuis, bolts and other fastenings.
work of a building. Sheets of glass
opening window frames can then be in
into spaces as desired, while the remainder can be Alled up with various kinds of panelling material.
This particular development typifies the trend towards the greater use of light vertical clad- ding in place of solid wall con- struction
|Tired? Just Step On The Homo Escalator WIRE ROPE
A moving stair designed for use in the bome—and, to make life easier for the aged, the infirm and the merely leg-weary was shown last week at the Mechanical Handling Exhibition, London. The domesile esentator (called the Bennie) forma » double width boligm stair when it is parked at the foot of the staircase. The passenger, who may stand or sit, han only to press a button and the stair moves along unobtrusive aluminium guides resting on the stair nosings. It stops automatically when reaching the top and stands ready to make the return trip. The motive powers is supplied by a half-horse power revenible electric molar fitted in the usual recess beneath the stairs and attached to the moving stair by two multi-stranded wire ropes. The’stair can süll be used by those who wish to go on foot--Reuterphoto,
MANDRAKE THE MAGICIAN
MANORAKE, HOW ABOUT
SOME DINNER?
FINE. I'M
HUNGRY.
FERD'NAND
NANCY
COME ON, LOTHAR, LET'S EAT.
10-17
I'LL BET WE'LL BE TOO LATE TO SEE THAT BIG WEDDING
TODAY
AW--- WE'LL
MAKE iT.
the JOHNNY HAZARD
Aluminium, too, is being in- creasingly used for window. frames where, on the whole, metal kas been growing in popularity at the expense of umber.
AX NUMBER of "new"; con- structional techniques have
been evolved, arnong them shell" concrete, and pre-stressed concreto.
Arm specialising in prestressed steelv work
m
now.
Since the war slotted angle chia mode great strider, not only
NOT HUNGAY. JUST HAD POPCORN.
SEE -- I TOLD YOU
POPCORN! WHERE DID YOU GET IT?
TERMINALS
BICYCLE PUMP ATOMISER
An enterprising firm of chemists has been calculating that there are 12,000,000 bicycle owners In Britain who are potential. users of their spray insecticides.
England, one
for
The Arm, Ashe Laboratories, cellings sprayed with it remain Lid, of Leatherhead, Surrey, Jethal to flies and insects
of the world's long periods and the spray is so largest producers of chlorophy), fine that it does not stain walls, has recently patented an atomi- furniture, carpols or clothing. A new form of
sor which can be screwed to an The firm is not only aiming at, |ordinary bicycle pump to pro- bicycle owners; those who have terminal, designed as an duce a fine vapour-like spray, mona, and therefore, no pump, attachment to wire
can get the kit together with n Three of the most powerful bicycle pump supplied at ropes of any
known insecticides known are sold in nominal cost.
¡capsule form with the alomi- specification, has been occ. They are a combination of
extract, coch capsule
bein Molten Metal
produced by the Tulloch dieldrin, indane and pyrethrum Construction Company, sufficient for 300 spraye, Ltd, of 70, Brighton Road, Sutton,
England.
60
There are different kits
for
Surrey, different purposes-the insecti-
cide is in red and white packs containing red capsules, the room treshener and odour killer Known
the Tulcon is in blue and white packs conj- Terminals, they consist of com-taining blue capsules The kit, pact assemblies of three simple called Spraycap, consists of the units which, when assembled, niaminer and four capsules; the form a terminal locking
cf the pack is the sizo
20- * wine rope to the assembly, thus {cigarette package. forming a connection which cannot come apart.
The assembly comprises 0 sleeve, to accommodate a given [size and diameter of wire rope,
a plug, which is inserted to eeparate and hold the strands of wire rope; and a terminal which cat be made to suit any given application.
The sleeve and the terminal løre made of forged alloy steel
Brat the
insert of shell cast gunmetal.
assembly, The complete therefore,
a strong provides terminal designed to exceed the strength of the wire rope to which it is attached.
The firm claims that their ad- vantages are simplicity, strength, speed of assembly, and economy.
The firm states that the in-
and residual.
sceticide supplied is both volatile Walls, floors and
US TO MAKE BRITISH WARP
KNITTER
Temperature Measurement
The Cambridge Instrument Company Ltd, of 13, Grosvenor Place, London, SW1, has recently introduced thermocouples suitable for measuring the tem- perature of molten non- ferrous metals - brass, aluminium bronze,
They can be fitted by unskilled New Jersey. I be
•
alloys and the like-and cast iron.
graphite
A new high-speed warp knit-
for ting machine, shown
the
For temperatures up to 1,100 Arst time at the recent Brussels degrees Centigrade, thermo-
elements Exhibition, is to be made in the couple
of chromel/ United States by agreement alumel, approximately 30 inches with the British designers long, are used, threaded through
FNF Company Ltd, of milid steel tube Shobnail, Bucon Trent, Eng. ton box at use and and de- land, has agreed that the Kiddo movable closed-crided
of sheath at the other. Manufacturing
will
The self-lubricating properties manufac of the sheath prevent it from inch wide binding when it is subjected to. .withstand FNF high-speed warp knitting heat. It is, therefore, casily re-
in បន distribution and Conadian markets.
The FNF machine impressed at the Brussels Exhibition by running very satisfactorily under adverse conditions at cruising speed of 800 courses per minute.
labour using a hammer, spon- ner and vice.
od the granted right to ture the new 100
Terminals will hammering, vibration
of other machine Industrial hazards. An inspec- tion hole is 'provided in each terminal to ensure that the at dachment 10 secure. Standard ranges offered at present range from one-eighth inch to one
Inch.
By Lee Full and Phil Davis
GOOD NIGHT THAT WAS
THE RADIOACTIVE
GRAIN
RIGHT HERE. DIDI--00 SOMETHING WRONG 1
By Mik
By Ernie Bushmiller
THAT'S RICE
THEY'RE EATING
HOW HORRIBLE!
AMP WE JUST MADE
ST INTIMA
By Frank Robbins
NOW ALL WE HAVE. TO WORRY ABOUT SE 4. HOW, WE SWIM FIVE. GMILES TO SHORELL,
EVEN
MAGICIANS
Canty arlsberg
TRY
Libby's
APRICOT NECTAR
1('■ Pure
Fomit Juice
DOOWELL A CO, LTD.
MILIART
ROWNTREES
You can taste the fruit!
ituation
an
Miquel
d
placeable.
Mild Steel Tuba
Below the Junction box, the -1 mild steel tube is fitted with a shield to protect the cold june- tion of the thermocouple from the heat radiated by molten metal,
For high temperatures, up to 1,930 degrees Centigrade, the thermocouple elements Gro; of rare metals (platinum-rhodium) and the mild steel tube is re- placed by one at nickel-chrome.
The element wires are about four feet long, the surplus wire being wound on small reels con- tained in the junction box,
The device makes allowance for the removal of the thermo- couple tip when deterioration
Orcuits.
The average lng of both types is 25 to 28 seconds when the graphite sheath is now, falling
bo 10 to 20 seconds as the sheath wall gets thinner with use,
Asbestos-covered
compensat- ing leads are used to connect the thermocouple to the in- dicator or recorder, thus render- ing the outfit independent of fuctuations in the temperature at the Junction box end of the thermocouple wires.
Anti-Roll Device For Small Craft
Fishing fleets and users of other small craft will be interested in a new type: of anti-rolling fin pro- duced by Vosper, Ltd, of Broad Street, Portsmouth, England.
The firm claims that the lins give an 80 per centre- duction in roll,
"They have already been i stalled in three vessels ), and orders have been received for fime for a yacht of 280 tons and for a vessel of 600 tons,
As the flus have been don signed for fitting and removal by a diver, they can · bə removed for inspection rainbonanen without the neudi to enter dry docki
or low, aspect ratio outreach), so that a wayin wolght and space" can be ete sured,
are theone
Tetractable.
A high-pressure, system operating
which "work ~ strnilarly
undercarriage';
ment of alterat
hydrau