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ENGINEERING," MINING AND INDUSTRIAL PROJECTS IN THE
FAR EAST
WATERWORKS FOR POOTENG
The construction of an up-to- date waterworks in Pootung has been ordered by the Municipal Government of Shanghai (Chi- nese).
Such plant is needed owing 10" growth of population and the increase in the number factories. The Municipality Of bas empowered the Greater Shanghai Clay Trust to
under- take the financing and building of the project Messrs. C. Lurby & Co., consulting civil engineers and surveyors, have been entrust- with he designing of the 24 ballding, while the construction
has been awarded contract
Chung Tin & Co. The Messrs. work is already in progress, and machinery for the plant is arriv- ing from abroad. It is expected that water supply will be available to the publle in May, 1936.
RAILWAY EXTENSION
10
The route for the Hanan- Klangs section of the projected Nanking-Hunan Railway (an ex- tension of the Cheklang-Kiangal Rallway) has been xed subject to approval of the Ministry- of ' Railways. The proposed line will start from Napthans, provincial, capital of Kinesi, pass Koon Shangkao and Wantsal in western Kiangal, and terminate at the Lil- ing station of the Pingsiang-Cha- chow Railway, in eastern Hunan " The cost of construction is est imated at $16,000,000,
DEVELOPMENT OF HAINAN Another great South China sea
is in the making. port
as the Kwangtung authorities have for- ⚫imulated plans to develop Hainan Island, the noted fruit area and the largest isle u the south coast. The Kwangtung government has, in addition to hastening com- pletion of the highway net- work and
of
the
construction
several plers, planned the bulding of a round-the- coast railroad' in Hainan. A or fulte project has now been drawn up by a Dutch railway, engineer, According to preliminary infor- mation, Kwangtung will approart the Ministry of Railways for a part of the Sino-British Boxer Board railway loan for the con- struction "of the projected Une. Work will be divided into three periods:
Wenchang First, from westward, following the sea coast" ic Tanhs, on the north-west coast; second, 1rom Wenchang routhward to Aisien, QIL south coast; third, from 'ranhsien to Changklang, on the south-west coast. Highway construction has teen feverishly pushed. As result Hainan now boasts ul a round-the isladd network. Th total length of new roadways cul.- structed is reported to have been 1.700 .
a
December 1 on the new iron bridge spanning the Luan River. The bridge, when completed, wil be 2,500 feet long and will cost $2,000,000. The Pelping-Liaoning Hallway Administration is build- ing the new bridge.
NEW ELECTRICAL PROJECTS IN
CHINA
Under the present Three-Year Plan of Kwangtung province, there are two new electric power plants in operation at the present moment. Diesel motors of 2,100 horse-power furnish power for one plant, while the second is a hydro-electric platit of the new- est type. The province of Kwang- s has under consideration three electric power plants in Fuchuan,
dohsien, and
In Chungshan. Nanning, of the Wuchow district In that province, the weaving in-
dustries
use electric power al. most exclusively with great... suc- cess Under the Klangsi Pro- vincial Government's plants for industrialising its capital, Nan- chang. two new hydro-electric power plants costing $3,185,000 are being bullt. Provincial au- thorities expect these projects to be completed by 1937. The "tu- ture for the development of the electrical industries in China looms bright. With the country taking readily to the use of elect- rical equipment, the demand for electrical power is assured, while power production on a large scale will enable prices to drop to a level that will make its use prac- tical and desirable. According to a recent investigation made by the National Electric Enterprise Improvement Commission, there are, no less than 30 electric coin panies in the process of formation in 13 different provinces.
ELEVATED RAILWAY MOOTED, Japanese capitalists have been approached by a group of Amert-
Ռ.
.HONG KONG DAILY PRESS SATURDAY, FEBRUARY 22, 1936.
ENGINEERING AND BUILDING
FLAWLESS WELDING
Another welding problem has just been solved-how to eliminate Every trace of a weld
"
The electric arc welding process has been developed to a high stan- dard. A wed, in practically any kind of steel made by the electric crc process has great strength, can be readily "machined. shows little indication of the joint, and can be produced with various de«
has gees of ductility. It
not, however, always been possible to eliminate every trace of the weld,
Recent research has been directed to obtain welds of perfect appearance and finish. The oxygen in the atmosphere has some effect upon the surface of molten metal, and the problem of excluding it from the weid has not been easy of solution, oxygen being the gas that supports con- bustion. It was known, however, that welding could be carried out in a hydrogen field, and this prin- ciple has now been put to practi- cal application by surrounding the are and the end of the feed, rod "field" or "envelope of with a bydrogen which is released from the electrode coating or suppited from cylinders.
sharts
1
Messrs. Barimar, Ltd., the weig- ing engineers, inform us that as a result of these developments they are now able to build up worn of all and similar parts weights and dimensions and ma- chine them to the required size, that is with a superfine finish at least equal to the "Anish" ob- tainable on unwelded meta. The welding of thin steel sheets and various alloy steels is done with equal success by the same process. This highly successfu result has bcen achieved by means of the welding process mentioned, in con- junction with very skilful machin-
ing.
be There would appear to
fure for this process; great
for restoration of shafts
a
which
can, Britsh, French, and Belgian which is admirably suitable interests with a proposal to join, the
ם!
in the organisation of a $2,000,000 are subject to friction, and also elevated rallway company for the welding of nearly all kinds
of stainless steel. Shanghal. The "Shanghai. Main- ich!" says the line would link Nabiao with the new Civic Centre in Kiangwan. The Japanese at- titude towards the proposal is un- known.
DEVELOPMENT OF SANMENWAN BAY
As a step to enhance the pro- sperity of Cheklang, the Provin- thecla Department of Reconstruc- tion is planning to develop Ban- menwan, a bay into an east coast port. The suggestion was made as early as 1914, but owing to var- lens difficulties, has so far not been realised. According to the scheme, the first stage will be re- clamation by labour-relief. estimated that $500,000 will be needed for this purpose. Situated about the middle of the east coast of China, Sanmenwan holds a key position as regards communica tions, coastal and inland
SMELTING IN JAPAN
FERRY ACROSS YANGTSZK AT WUHU
To faciutate througn rail trai- Ac, the Kiangnan and Huains Railway Administrationg Jointly institute a ferry
cross
Will Service
the Yangtze at Withu. The ferry boat, it is understood, Vill be similar in design to indi plying between Nanking and Pu- for the Felping-Shangrei hrough train service, and will be built at a cost of more than $700,000.
кото
SINGAPORE AEROURÜME
BORDER
An important advance in the construction of the Singapore civil aerodrome is revealed in the "Straits Settlements Government "Gazette," which recently invited tenders for the supply and erec- tion of a reinforced concrete sea- plane slipway. This contract in- cludes sheet pling and a reinfor- ced concrete wharf, and is a pro- paration for the Empire flying boat sevice between Eaglend and Australia. Tenders closed on November 22,
PHONE LINKS FOR CHINESE BORDER Asuta of $18,000,000 will be needed for development of the telephone system in the five fron- tier provinces of Szechwan, Yun- nan, Kweichow, Shensi and Kan- su, according to estimates' pit- pared by the Ministry of Com- munications. Besides appropriat- ing part of the $10,000,000. tele- graph loan, the Ministry will de- vise other means to raise suffi- cient funds for installation of the network.
NEW LUAN RIVER REIDGE. All preparatory engineering work having been completed, con- struction work was to begin on
It is
The Tokyo Ministry of Commerce and "Industry has decided to en- courage production of steel. De- mand for pig-iron for 1936 is estimated at about 1,400,000 tons, but the supply from Japan and Manchukuo together will be only 850,000 to 900,000 tons. Applica- tions for permission to erect smel-, tere have been filled by five new
Iron Japan
would companies. build a 1,000-ton smelter at its Yawata foundry. Arano Kokura Steel wants permission for a 250- ton smelter, Asano Shipbuilding wants a 300-ton smelter, and Ja- pan Steel Tubing wants a 400-ton smelter.
NEW RAYON PULF PLANT Plans to manufacture rayon pulp from waste cotton are being entertained by the Mitsuma Bus- aan Kaisha, which is said to be considering foundation of a y.- 10,000,000 company with a dafy output of 10 tons, Mitsui Bustan has contracted with the Dai Nip- pon Spinning Company to take over all its waste and to be. ne- gotiating on a similar basis with the Hanegatucht Bpinning Com-
pany,
The Okazaki factory of the Nip- pon Rayon Company, at Okazak! will be completed toward the year-end. During the first bait of 1038 several large rayon mills ore expected to be completed. These are the Kurashiki Rayon Company's 20-ton mill, the Toyo Rayon Company'a 20-ton mill, the Teikoku Rayon Company's 20-ton mill, the Fukushima Rayon Com-
Ji
EARL'S COURT STADIUM
LIGHTING
The new Empress Stadium at Earl's Court, which contains an arena 200 ft. long by 97 it wide, has a maximum seating capacity for 10,000 people and is iighted by 30 1,500-watt flood-lights. are arranged above the arena for Ice-hockey events.
These
Two batterics
of three concentrating reflectors a'so containing 1,500-watt lamps atc fitted high up for use when the arena lights are not in opera- tion, while when boxing is taking place illumination is provided by 16 simlar reflectors which are mounted on a framework. This framework can be lowered from the roof by a winch. The whole of the arena and stand fittings are also equipped with winches, so that they can be lowered for cleaning and maintenance, The approach roads are lighted by 500-watt lamps in Dulux reflec- tors, which are mounted on 20-ft. standards, and by 200-watt amps in Wembley lanterns which Axed on two-way brackets. The installation was carried out by Messra, T. Clarke and Company. Limited, 129, Bloane-square, Lon- don, S.W.1, the lamps and fittings being supplied by MessTS. The General Electric Company, Limited, Magnet House, Kingaway, London, W.C.2.
are
the ShowB party's 20-ton mill, Rayon 5-ton mill and the Asahi Bemberg Company's 10-ton mill On the completion of all these plants, the supply is very Hkely
de temporarily to exceed the mand.
SUBMARINE TUNNEL Construction of the submarine fuanel linking the Main Island of Japan with north Kyushu will
commence this year according te a decision reached at a conference of Railway Ministry "eng'neers. Work will be spread over a period ct four years at a total cost of y 18,000,000, of which, It's hoped, y.3,000,000 will be included in the Railway Ministry's budget for the 1936-37 fiscal year. Décision was also reached to bore a tunnel be- twem Komorie, Mojl, and Teshi- macht, near Shimonoseki, a dis- Tanca of 3 335 metres,
BUILDING RESEARCH
Fresh Problems Daily
It is not unknown for crides of mechanical civilisation to iden- ly endlessness with aimlessnes and to gibe at science for raising two fresh problems in the course of every one that is solved. While this is not likely to be regarded as a valid argument, except perhaps among those opponents of scienti- fic progress who contrive to re- concile their melancholy .rreed with a fairly complacent accep- tance of the comforts and con- venience of life which science and engineering have achieved, it has to be admitted that scientific re- search has a way of extending its own horizon. This characteristic is by no means restricted to the so-called pure sciences. It is, in deed, quite remarkably examplified by the eminently practical work now in progress at the Building Research Station of the Depart ment of Scientific and Industrial
an
Research and described in the re- cently-published Report for 1934. In the spacious days when build ing was art, knowledge, of materials and methods grew slow- ly enough out of accumulated ex perience for both to develop at much the same rate,
IN THE PAST
hand, the first costs and mainten ance of buildings, the speed of erection, economy in heating and ventilation, are matters. of suff- cient Importance to warrant in- clusion In the Building Research Board's programme,
THE OLDEST FORMS As regards the latter aspects, therefore, it will be apparent that the oldest
building forms material, equally with the new. offer scope for scientific investiga- tion. A case in point is that of
the building stone,
quality Df which used to be judged by ob servation of material previously won from the same quarry. With only this experience to rely on, the architect Was not directly aware of deterioration in the in- trinsic quality of the stone in a particular quarry or seam, his Arst indication being unsatisfac- tory weathering some few years after the completion of a struc- ture. Now, however, simple la boratory tests for porosity and been saturation properties have devised from which the weather- ing qualities of Portland stone can be confidently predicted.
INVESTIGATIONS
connected with During the past two or inree
Investigations generations, however, the indus- the more modern types of building trial applications of science have materials extend over an astonish- produced new materials. for al ingly wide range, both of the pro- most every aspect of building in ducts themselves as regards their such profusion, that experience of original constituents and eventual their behaviour and methods of forms, and of their physical pro- use-necessarily delayed in the perties in relation to the condi- case of enduring substances-nos tions imposed by building çon- "been unable to advance at equal struction. In view of the excep
pace. Thus, science, in solving one tlonál importance of concrete, problem by creating a great variety fundamental research into the of new structural materials, there- constitution of cement is being by raises the further problem of actively pursued, and whilst fina- how to use these materials to the lity has not yet been reached, the best advantage and how to ap- partial results already obtained praise and control their qualities have found valuable technical ap- before putting them into service. plications. Studies of the con- In these directions, therefore, les stituent compounds of set coments ample scope for experimental are also in progress; attention be- work; but it is, perhaps, worth ing mainly devoted, at present, të emphasising that the Research calcium sulpho-aluminates and Station at Garston is concerned with methods and materials not only in themselves, but also in their relation to externally impus- ec conditions to which construc- tional work. Is nowadays subject. On the one hand, for example, there is the need to guard against atmospheric pollution, fire risk and traffic vibration, and to secure acceptable conditions as regards noise and hygiene On the other
THE DURASPRAY RUST-
·PROOFING PROCESS
A process for coating steelwork " situ" which possesses a num- ber of features of interest has re- cently been introduced by Messrs. Duraspray, Limited, 506-9, Austra- lla House, Strand, London, W.C.2. The process consists essentially in applying first a printing coat of rea lead paint, then dry-spraying. on to the wet or "tacky" surface of the priming coat a very finely- divided metallic powder, consisting of specially-prepared zinc containing a certain proportion of
dust
hydrated calcium silicates. Com- parisons of physical properties common, to pozzolanas and Port- land cements have yielded in- teresting
results, generally in favour of the Portland cements as regards volume changes and per- meability, while none but slight and variable increases of strength have been achieved by the add!- iion of gypsum to lime-pozzolana cementing agents.
affording superior "protection and of expediting matters, since there is no waiting for the priming coat to dry. It is, moreover, pointed out that the covering up of the red-lead primer by the dry metal- lic coat prevents harmful solids present in the atmosphere. such as coal dust and sulphurous particles, from settling on the wet primer. If the Anishing coat be sprayed on, it is stated that it can be ap
He coat, thus giving a very, rapid plied immediately after the metal-
sequence of operations. If, on the other hand, the finishing coat is applied by brush a day should elapse to allow the primer to set beneath the metallic coat. only does the matt surface of the metallic layer constitute an ex- cellent key for the finishing paint, but its chief function is, of course, the protection, by electrochemical means, of the underlying steel, should this become exposed by abrasion. The metallic layer is electro-positive to the steel and the latter is preserved at the ex- pense of the former; and any, ten- dency to the underspreading of corrosion is resisted. Engineering,"
Not
uminium, and finally applying a finishing coat of paint of a char- acter and colour to suit the parti cular conditions and the situation of the work: The priming coat. we understand., is of special char- acter and is the result of consi- deratie research and practical tests. The metallic-powder spray ing equipment la portable; it la coupled, by means of. flexible hose, to an air-compressor delivering 12 cub. ft. of air per minute at 40 lb. per square inch pressure. The powder is delivered through a light hose to a gun nozzle specially designed to give a horizontal or vertical band spray as desired, the adjustment being effected instan- the overcoat his wife had bought taneously. The spraying equip him for Christinas. ment is capable of being holsted into any required. position; it con- tains sufficient powder for a day's work and has no moving parts.
EASY TO WORK
The small husband was trying on
“You know, dear," he said, gaz- ing at himself in the mirror, "this is a nice present and all that, and don't think that I'm ungrateful, But really, lan't it much too large for me?"
"I know, my dear," she returned. "But we can't help that. You must femember that it's got to cover the radiator of the car in cold weather, We have to consider that first,
It is claimed that the spraying operation can be satisfactorily carried out by an unskilled man, and that while the process is no more costly than the application of the usual three coats of paint, It has the added advantages of haven't we?".
AND
ETE
PORITE
EXERA
EMERALCRETE
RAPID HARDINING
PORTLAND CEMENT
IN PAPER BAGS OF $4LBS NETT -
PRODUCT OF
GREENSLAND CEMENT CO.JID.
EXCHANGE BUILDING. HONG KONG
THE TAIKOO DOCKYARD & ENGINEERING COMPANY OF HONGKONG, LIMITED.
BUILDERS OF ALL CLASSES OF SHIPS. BUILDERS OF RECIPROCATING STEAM ENGINES. BUILDERS OF RINE AND LAND BOILERS. BUILDERS OF URBINE MACHINERY~
Under Lice From Messrs Parsons. BUILDERS OF DIESEL ENGINES
Under Special License
From Messrs. Sulzer Bros., Winterthur. LicensedTo Manufacture Lanz Perlit Iron, Specially Suitable
For Internal Combustion Engine Working Parts.,
DOCK & SLIPWAYS.
FOR DOCKING VERY LARGE, AS WELL AS SMALLER VESSELS,
ON ANY TIDE
ALL CLASSES OF SHIP, ENGINE AND BOILER REPAIRS AND "EXTENSIVE
WELDING, BOTH ELECTRICAL AND OXY- ACETYLENE SKILFULLY AND PROMPTLY CARRIED OUT.
BUTTERFIELD & SWIRE.
HONG KONG, "CHINA &"JAPAN. TEL ADDRESS: "TaiKoobook," HONG KONG.". TELEFONE: 80211.
CALL FLAG: " NURMHAL One “Over * PENNAFT ANK,"
Agents,
PICTORIAL MAPS
OF
ABYSSINIA
ARE OBTAINABLE.
HONGKONG DAILY PRESS
MOUNTED
50 cts. each
PRICES
UNMOUNTED
25 cts. each