Page
MAIL NEWS FROM CHINA
Railways, Mining And Road Building
100
SOOCHOW.KASHING RAILWAY
JJ
Work on the construction of a "rallway linking" "Soochow,, on the Nanking-Shanghai Rallway, with Kashing in northern Cheklang, the Shanghai-Hangchow- Ningpo Railway, will soon started simultaneously on three sections. The entire line will be 75 kilometers long.
NANKING-WUHU RAILWAY
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Train service on the Wuhu- Elsuancheng section of the Nan- *king-Wuhu, Rollway, in south- eastern Anhui has been formally opened. The entire line will be completed in March, 1935, ...
FOUR RADIO STATIONS
FOR HSIKANG
According to information from the Ministry of Communications the, four radio stations establish- ed by the Ministry of Tatsterilu. Kanchi, Pa-an-and Tehkeh in the. newly-created Hilang province between Szechuan and Tibet have all been completed and have started-operation.
LONG DISTANCE TELEPHONES
Direct long-distance telephone service between Kalgan and Kul- hua, respectively provincial capi. tals of Chahar and Suiyuan, has been put into operation. The line passes through the two districta of Hingho.and Shang-o, in east- ern Sulyuan,
»
CHUNG AND WEI RIVERS
TO BE DREDGED
HANKOW.ICHANG HIGH. WAY COMPLETED
With the last section between Tăngyang and Ichang, in south-" western Hupeh, complèted, the entire Hankow-Ichang « Highway has been opened to traffic, In response to a request by Mr. Li Fan-i, Provincial Commissioner of · Reconstruction for Hupeh, who has been Inspecting construction' work on the last section, Messrs. Tan Hsien-chiung and Chão Chia- sheng, respectively Director of the Highway Bureau, and Chief En- gineer-in-charge, left Hankow by motor-car for Tchang to arrange for the establishment of stations along the highway and the formal inauguration of the omnibus ser- vice.
OMNIBUS SERVICE FOR
KIANGSI HIGHWAYS.
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Omnibus service on the Tsung- Jen-Fengcheng, Haintsu-Tean and Patu-Chihchi Highways, in south- ern Klangsi, is now in operation under the direction of the Klangs! Provincial Highway Bureau. Sur- vey work on the highway between Sinan and Ningtu, in southeastern Klangal, has been completed, and will be extended in the near fu
from Ningtu to Jufkin, ture farther south.
CONSERVANCY PLANS FOR YELLOW RIVER
Plans for the irrigation of the Great Bend (Hotao) of the Yellow River in the provinces of Suiyuan and Ninghsia have been drawn up by the North China River Con- servancy Board following exten- sive surveys by its engineers. The project entails a sum of $1,300,- '000; besides facilitating naviga- tion on the river, it will beneft 5 million mow of farm land.
YANGTSE EMBANKMENT
Work on the construction of an embankment along the Tangtse River at Hsiakuan was has been
In view of the paramount im- portance to inter-provincial navi- gation of the Chang and Wel Hostarted under the direction of the
(Rivers), which pass through the three provinces of: Honan, Hopel and Shantung, the three provin- clal Governments are now jointly making plans for dredging opera- tions. A survey corps has been proceeded to Kuantao, north- western Shantung, to start sur- veys on the upper reaches. When the survey is completed, dredging plans will be mapped out for sub- mission to the National Economic Council.
Definite plans for the dredging of the Hopel section Grand Canal have been mapped out by the North China River Conservancy Commission. The section covers a distance of 1,000 l (more than 300 miles).- Luo Min,"
PORT
BEST
Nanking Municipal Government. This is the first step towards the development of Hstakuan as the "First Industrial and Commercial Area" of the Capital The cost is estimated at over $72,000 and the work is to be completed in April.
BRIDGE TO SPAN THE PEARL RIVER
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Carton, Jan. 24. The work of construction of the Southwest bridge which is to span the Pearl River at. Huangsha is fast proceeding.. Up to the pre.... sent, about half of the work on the buttresses has been completed. It is expected that the whole structure will be completed early next year-- Central Prese.
AND
ETE
GEMENT
EMERALCRETE
RAPID HARDENING PORTLAND CEMENT
IN PAPER BAGS OF 94LBS NETT
PRODUCT OF
GREEN STAND CEMENT CO.LTD.
EXCHANGE BUILDING. HONG KONG
HONG KONG DAILY PRESS, SATURDAY, JANUARY 26, 1935.
AND BUILDING
ENGINEERING AND
HARNESSING THE TIDES
Hydro-electric Development In Great Britain
A paper on hydro-electric development in Great Britain..
by Messrs. A. S. Valentine and E. M. Bergstrom, was read by Mr. Bergstrom to the Institution of Electrical Engineers in. Man- chester recently.
In making a survey of the pre- sent position of hydro-electric power in Britain, he admitted that its extent was Rmited by the absence of high mountain ranges with large catchment areas and by the competition of a. cheap and adéquate supply of coal
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On coal our industries were primarily dependent; water power could only be regarded as a sup- plementary element. In Judging the results achieved by hydro- electric schemes the economic standard was fixed with reference to coal, and it had to be demon- strated that water power in any given instance could produce at " least as cheaply as an alternative supply of coal on the same site.
North Wales And Scotland
As might be expected, most of -the-production of this kind in Great Britain was in Wales and Scotland. The total energy avail- able from plants in operation in North Wales was about 95,000,000 units a year. This, he thought, could probably be increased to 140.000.000 units a year by in- .creasing the
available water supply, particularly at Maent- WIOS.
But it had to be borne in mind that certain important Welsh watersheds were already used by: local authorities for water supply.
Over 30 per cent, of the avail- able waterpower sources in Great" "Britain were in the Scottish
Highlands,
Favourable Features The geographical features were favourable, the country being mountainous and consisting mainly of impermeable strata with steep slopes and compara- tively high while there were lochs at con-. siderable elevations which could be used as impounding reservoirs.
average rainfall;
11
0:
He touched on the possibilities"
tidal power development. Tidur "cdfdition's were most fav- ourable on the west coast. of England and Wales, and plans for B power station on the estuary of the Severn had re- cently been investigated by Д special commission. The techni- cal difficulties of obtaining em- cient results from water turbines operating under the onerous conditions of widely fluctuating head of water had now been dis- posed of with introduction of Kaplan or other types of propel- ler turbines.
STREAMLINED
TANKER
Notable Launch In Sweden
The
ΠΟΙΟΣ tanker Brajaca, 12,000 tons, which was recently launched at Gotaverken Gothen-
burg, for Ludy, G. Braathen of Oslo will be bottle for the 'streamlin- ing and general shape of her sup- erstructure.
When the vessel' was ordered the owner's technical consultant. Paul Kavil, ‘Hut forward a plan for an entirely new form of sup- erstructure amidships.
It, differed so radically from the usual form that Gotaverken were unwilling to accept it without thorough tank tests at the lobar- story of the Technical College at Stockholm.
The tests, made with large woo- 'den models, showed that the 'Kavli design with streamlined
HIGHWAY PLAN FOR GREATER LONDON
The problem of London's traf- fe Is not new, Queen Elizabeth tackled it. without her usual suc- cess in the field of High polley and it was at the back of Wren's ortive design for re-planning the City after the Great Fire.
Coming to more recent years, a Select Committee of the House
ot
Commons was appointed in 1836 to consider the most effect" ual plan for raising of money to carry into effect the necessary improvements." This was follow ed in quick succession by four further Select Committees and in 1840 by a Royal Commission, none of which produced any tangible results.
Problem Unsolved
Matters lay dormant until 1903, when another. Royal Commission led to the formation of the Loh- don Transport Branch of the Board of Trade and of the Great- er London. Arterial Road · Con- ferences. These prepared plans, which were later inherited by and carried into execution under the Ministry of Transport. But still the problem remains unsolved. Mr. Hore-Belisha has therefore wisely come to the conclusion deck erections, gave 40 per cent.. that further Committees of In- less resistance than other forms and it has been calculated that "Tidal Power And Ita Cost with a head wind of fifteen metres The utilisation of tidal power
this should mean saving of one resolved itself into an economic ton of fuel all per day: question in relation
other to
It is stated that the tests de- available or potential supplies in monstrated that the resistance of the area.
high perpendicular bridge fronts, There were topographical dimeven if these are somewhat round- 'culties to be surmounted, `and" ed, is of considerable importance the cost of civil engineering with comparatively slow works was 'considerable.
as well as with fast ones.
43
The large amount of capital required (the estimated cost of the Severn scheme was over £38,000,000) made it unlikely that "private enterprise alone" could undertake such schemes.
They must rely on Government initiative or on a combination, of the Government, local authorl- ties, and private enterprise. So far as it had been investigated, the economie margin in favour of tidal power development was
small.
Coat Conservation
the Interest of the 'conser- vation of coal resources such de- Velopment should be encouraged, but it was doubtful whether the present state of the power-supply industry in Britain justified any large-scale undertaking.
In the future, however, power. from the tides would be an im-
portant factor in a general pro- gramme of electrification.
TURBINES FOR
SMALL
CARGO BOATS
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New Unit Produced At Jarrow
During the period, approaching 40 years, that the turbine. engine invented by the late Sir Charles Parsons has been in ser vice its use has been practically confined to large liners and naval vessels.
made by Parsonis
An Important advance has now been Marine Steam Turbine Co., Limited, who have produced an in- stallation suitable for "small"car gų, vessels.
The company has been encou- raged in its research and experi- mental work in this direction by various requests for some simpiff. ed all-turbine design to meet the ever-increasing demand
for greater economy and efficiency in propelling machinery for low- powered cargo vessels.
The firm has developed an arrangement of geared turbines which it is considered will, fúlfl) all the requirements of high efficiency and low first cost.
#Simplex Unit” Though the new engine, which is called the "Simplex Unit." has heen specially developed for boats such as tramp steamers of from 1,600 to 2,000 shaft horse power, no experimental principles are in volved, and the only features em bodied in the design are those of which experience has been gained under actual service conditions.
A moderate steam pressure has been used, in order that any type of boller can be used in conjunc tion with the unit.
One of the main objects the company has in view is to stan- dardize the installation to provide a simple, cheap, and reliable plant for the power required with a minimum of component parts and gminimum of assembly, connect-
ing up, or alignment to be done when erecting the unit in vessel.
The total weight of the unit 1s 140 tons, less than the weight for a similar outfit with re-. ciprocating engines. Conditions affecting low-speed cargo-boat- work, such us running at powers considerably below the full horse power, have been taken into special consideration in the design.
Extensive Testr. Extensive tests and shop trials have been carried out by Profes- sor C. J. Hawkes, Professor of En- gineering at Armstrong College, Newcastle, on a design of turbines and reduction gearing erected by the company at their Wallsend works for test and demonstration purposes, and which is suitable for an installation of 2,000 shaft horse power, or the equivalent to 2,200 indicated horse power of ret : ciprocating engines and 10 to 80 revolutions a minute for the pro- paller.
Professor Hawkes reported that the recorded steam consumptions of the plant were exceedingly good and that there was little falling on in the eficiency the turbines at the lower powers.
The plant which is uncur
quiry are unnecessary and has instead decided that probably bet- ter results will be obtained by ap- pointing one single person to pre- pare a highway development plan,. for the London Traffic Area, that is a circle with a radius of 25
miles from Charing Cross-
Mr. C. H. Bressey, who has been chief engineer, of the Roads De- vesselspartment of the Ministry since
his constant supervision, ran smoothly and steadily through- out the trials without an inci- dent of any kind.
Yesterday at the invitation of the directors of the firm, a large company interested in shipping the engine. and marine engineering inspected
"Mr. R. G. Walker, chairman and managing director, said that while it was not possible to give any advanced figures regarding fuel consumption until the engine had been tried at sea, an timate could be made on data so far obtained, and they were con- Edent in obtaining a coal con- sumption of under 1 cc. per in- dicated horse power.
es-
The cost of installation, he an- ticipated, would be about the same as that for a good class reciprocating engine.
The Unit Described
The unit differs in one im- portant respect from the usual turbine drive in which there are two or more pinions transmit- ting power to the gearing st- the same time, and in which a higher degree of accuracy is necessary, since the inertia of the turbines tends to maintain. the speed of the separate piritons in constant relation The two turbines of the Simplex unft are arranged to drive a single pinton.
The unit consists of two tur- biries h.p. and Lp., working in series. The h.p. ahead turbine is of the impulse reaction type, con- sisting of two Impulse-velocity stages and three reaction expan- slona fitted with end-tightened blading. The 1p. ahead turbine" is of the ordinary reaction type with 14 expansions,
The turbines drive, through ex- pansion couplings, a common primary pinion gearing with a primary reduction wheel. The secondary pinton which is on the same shaft us the primary reduc...: tion wheel, drives the main wheel, which is directly connected to the brake shaft,pekerj
When the brake shaft speed is 80 revolutions a minute the speed of the turbines is 3,993 revolutions a minute, Le, the total reduction Is about 50 to 1 The gearing is of the single helical type, with Involute teeth and thrust blocks are fitted to each turbine, to the primary pinion, to the Interme diate gearing shaft, and to the main Brieft.
The end thrust of the main gear wheel will in practice be opposed to the propeller thrust, which will reduce the load on the main thrust block, de
During the trials saturated steam was supplied by an off- fred Babcock and Wilcox boller, and the steam was then supe heated in a separate oll-fre superheater.
"ance:
97ás built in accord- the requirements of Shipping and
1928, has been chosen for this purpose, and in consultation with the 130 highway, two-plarining and police.authorities concerned, will perform his task with as high a degree of despatch as possible, lest the results should be render- ed valueless.
Improved Road Communications
His terms of reference will be to study and report upon the need for improved communications by road in the area and to prepare a highway development plan in-
corporating, as far as practicable and desirable. schemes already planned or projected.
In carrying out this work Mr. Bressey has been instructed to - disregard administrative boundar- les and to consider the area as a whole.
He is to include tunnels, viaducts and bridges in his ambit and to pay special attention to the origin and destination of the traffic and to the Justification for the use of important thorough- fares by the classes of traffic at present traversing 'them...
Estimates for Future
Further, he is to frame estim- ates ofthe future 'How of traffic, His report and plan, which it 15 hoped to complete within three. years, will be referred to the Lon- don and Home Counties Traffic Advisory Committee and special emphasis is laid on the necessity of close contact being maintained with highway and police authorit- les. Sir Edwin Lutyens is to act
"we shall look forward with inter- with Mr. Bressey as a consultant.
est tb reading this report and shall await still more eagerly any action that inay follow on it
PROJECTED WATER AND ELECTRIC WORKS
Nanchang, Jan. 12. Piana for the construction of the projected water, and electric works in Nanchang were adopted by the Klangst Provincial Govern- ment at a meeting yesterday. It is provided that the capital for the plants be fixed at $3,200,000; the water works to be completed in one year and the electric works in two.
The Provincial Department of ' Reconstruction has asked Mr. T. L Boong, General Manager of the China Development Finance Corporation, to have the contract signed and recommend engineers for the construction. Kuo Min.
METAL WINDOWS
"MANUFACTURER :
MADE IN HONGKONG
FROM
IMPORTED BRITISH MATERIAL
95%
BRITISH.
THE TAI YING STEEL WINDOW MFG, CO.
TELEPHONE : 27482.
·OFFICE:— 89/85, OBUN YONG STREET FACTORY-NORTH-POINT, HONG KONG.
ELECTRICAL
SHIP & ENGINE BUILDERS. SHIP & ENGINE REPAIRERA. MECHANICAL AND
ENGINEERS.. BØYLER MAK28, "IRON FOUNDERS.
(Licensed To Manufacture Lanz Perlit Irom). BRASS FOUNDERS. FORGE MASTERS.
OXY-ACETYLENE "AND
·ELECTRIC WELDERS.
THE TAIKOO DOCKYARD & ENGINEERING COMPANY
OF HONG KONG
SALVAGE TOG "TAIXOO"
LIMITED.
4DRY DOCK—
Length 787 Feat. ength on Blocks 750 Feet. Breadth at entrance 98 ft 4 in Depth on Centre of BUIHW0BT-) 34 ft. 8 ins.
THREE. SLIEWAYS.... Capable of Handling Ships Up to 4,000 Tons Displacement
-CRANES---
300 TON Electric Crane at Sea Wall,
Lifting reach" 70 feet 25 TON High tower gantry fravallo ing Grane, Lifting radius 77 16ins serving the Dry Dock and des Wail berths.
BUTTERFIELD & SWIRE, Agents,
HONG KONG, CHINA & JAPAN.
Hona Kaza
TALIPHONA: 302113