HONG KONG DAILY PRESS,- SATURDAY, OCTOBER 17, 1931,
ENGINEERING AND BUILDING
EAST
BUILDING ACTIVE IN
JOHANNESBURG,
AND WEST
Up to the present hll attempts made by foreign firms to start mifi- ing enterprisca. have failed, owing, to the restrictions placed by the
WIRES, BUT NO ELECTRICITY.
(Continued from "Page 2)
Building brations in Johannes Chinese mining laut upon the intro-expected to receive at any rate a Other schemes still in the air are hurg. Buth Africa, haye beduction of foreign capital. It is un-temporary set back, relying as they netive during the past eight years.derstood that these difficulties huto do on. Government assistance. It Approximately 280,500,000 was spent | pa buildings during that period,
now been overcome by the Northern is expected that at the present Gold Dredging Company, a Britisht juncturo this will not be forthcom recording to the city engineer. During the first five-months of 1931 concern, with its head offices in ing building netivities were valued at about $3,890,000, na compared with 38,400,000 for the same period of 1930. The tendency toward co- atruction of higher buildings is becoming increasingly apparent
HOUSING AND PUBLIC-WORKS
CONSTRUCTION,
The construction of dwelling houses and large apartments in Marseille, France, does not seçm
London.
METERING ELECTRIC
POWER.
PRACTICAL DIFFICULTIES.
are
of on-standard instrumenta. In
the matter of charging: for, alectric-" ity supply it is worthy of note that, although the highest necuracy, is nimed at în' the mensurement of the quantitics" upod which the total charge to the consumer is based, the actual fixing of the rates of cargo under the tariff is largely mat ter of judgment and enlightened In this circumstanco guesswork,, there is no lack of equity, ag, the basic principle of charging for elec- tricity is that all consumers who use. and whose demand is of the same tbair supply for the same purpose, character, must be charged on the inmo basia. The actual nature of this basis is largely a matter of ex- pediency."
In these circumstances it is 'some-
Electricity supply tariffs conventionally supposed to bo si framed that the clinrge" made to a consumer for his supply is approximately equal to its total Bust including a reasonable mar sin of profit." Charges for indus trial power are usually of a two- part character, one part, based on demand, covering the cost or re what to be regretted that an alter ndiness on the part of the under-bative method of charging for three- taking to surre, and the other phase power supplies cannot be de visor which, while retaining the de- covering the actual running cost aired fontare of making the overall of production of the energy used. prato per unit depend upon the Mpanwhile, the Central Electric
power factor, can be carried out This Company, working in close coity Board are going ahead with When the supply on the direct without the use of complicated me operation with the Chinese, has ob their programme. Their sole func current system the coat of readitering equipment. The equating of charge for supply to cost of pro tained a concession to work, firstly, tion is to select suitable generates to serve depends, for a con
duction is a principle to which no sumer of a specified clas, upon, the gold deposits in the territorying stations in various parts of
sorb of attempt at adhesion, is made **his maximum demand. With | af controlled by the Haingan Coloniza the country assist them in producternating current supplies the
in the ease of domestic supply, the
tion Bureau and later, those in ing electricity in bulk and then offective demand upon the plant ried out where the maximum kv. Kirin Province. The contracta in carry that electricity all over the of the undertaking depends not both enees have been approved by country on their transmission 1776. only upon the consumer's demand the Central government.
The main difficality they have in kilowatts but also upon the Extensive prospective work will had to contend with has been in power factor of this demand. As begin this year.
the scouring of way leaves. This power factor depends upon the has resulted in many months' de-characteristics of the consumer's lay, particularly in South East plant, and is therefore mure - or England. However," their work is leas under his control, it is consi- going on apace, and their pylons dered equitable to frame the tariff and wires already stretch for many so that the total charge for sup- hundreds of miles over the comply depends upon the powes Inc-
"to be affected by the business de PATENT FUEL MANUFACTURE
pression, and a number of small } *..
· houses are under construction in
the suburbs. Several large, modern' |
aid.
IN JAPAN.
tenements for the working classes It is reported from Tokyo that are being constructed with State the Mitsubishi Co. has decided untryside.
Industrial construction has the erection of a patent fuel manu- slackened because of business confacturing plant with an annual ditions, but one large chemical capacity of 400,000 tons to utilize tory has commenced work on an the anthracite and bituminous conl extensive plant. Construction of froni tho Takashima colliery. The publio works is very active, Con- Eatent fuel produced will be used
for boiler-firing purposes on the trict
struction prices during the second quarter of 1031 showed no change..
SHIMONOSEKĮ STRAITS .
TUNNEL;
locomotives of the Japanese State Railways.
COAL FROM ASIA.
A submarine tunnel metres
Anthracite con is being carried wide und 5,650 metres long is to to Canadian Atlantic ports in a be built between Shimonoseki, the ship from French Indo-Chink. That extreme western tip of Japan's is a voyago half way around the largest island, and Moji, an in-world. A vessel now unloading in portant port on Kius island. It Philadelphia is discharging 1,000,000 is estimated that the tunnel will feet of fir and hemlock from Oregon cost Y.30,000,000. The Department and Washington and a quantity of of Home Affairs has authorised canned: goods, dried fruits und Y.1,000,000 for a survey of the petroleum base products, and, will route. Three to fiye years will bo take back to the Pacific Coast steel, required to complete the project. automobiles, asbestos, machinery The tunnel will not only carry motor und tools. car
and other vehicular traffic, but tracks for electric trains and cara will be laid,
CANTON'S DEEP WATER
HARBOUR,
CONSTRUCTION IN
MANCHURIA,
At the
ば
tor of the maximum demand.-
The well-known modification of
maximum demand tariff, in which the demand charge is based op volt amperes instead of "watts, is usual
I
consumer, ons to
principle is only approximately car
would seem to be no fundamental demand tariff is used, and thero
objection to the use of a tariff un- der which the charges are based upon the registrations of meters which mensure actual and wattless unita.
LONDON CLERK TRIUMPHS.
BEATS WHOLE-TIME ARTISTS IN OPEN COMPETITION.
Mr. R. W, Sallows, a London had only three years art training employment bureau clerk who has in ovening classes, hus successfully competed againet 143 full-time art students and artists ja an competition for the best poster do- sign for advertising L.C.C. evening schools and institutes.
open
When these wires
appear the countryside may take hope again, and if it wants electricity must ensure that the local supply com- pany in the nearest town is assurly considered to be a very cult fed of a good demand in the disable method of adjusting the
charge to the
Mr. Sallows was formerly a night include the extra cost of the supporter, and did not begin to study Ply due to low power factor. When art until he had passed his 44th the maximum demand is assessed birthday. in kilovolt-amperes instead of kilo- watts, the demand portion of the charge is increased by a greater amount than the increased cost to the undertaking, due to low power factor, but this inaccuracy is offset by the fact that the actual cost or upply per unit increases as the MILES. power Inetor falls or
falls because of ju WINED.creased transmission losses.
A review of the work so far car ried out by the Board is interesting. In each case the milenges given are of lines actually strung and tested and ready for immediate use whenever the local companies choose to ask for the bulk supply: This, of course, they will do only if satisfied of a sufficient, demand in
their area.
WAYLEAVE ARRA, POSITION. North-East
England All obtained.. 42 North-West
England Nearly all
obtained 100
unobtained 170
Mid-Enst
England 3 miles
Central
England 5 miles
Assessment of Maximum Demand.
Although the assessment of the consumer' maximum demand in kilovolt-amperes is very desirable" from the point of view of the de signer of supply tariffs, the commer. cial application of the principle is- nos ao convenient, The inagnitude known as the volt amperes in an. a.c. circuit is not representative of any real physical quantity, and ac- England All obtained None cordingly cannot be measured with accuracy, unless certain stipulations England. 70 miles
aro made regarding the conditic la unobtained 261 of the supply. When the supply in |
South-West
unobtained 230*
England 261 miles
The construction bureau of tho Mukden Government has expedited | East the plans for the new city of The most ambitious of the great Hülutno, and construction work will South-East projects at Canton is the countrue probably, start this year. tion of a deep water harbour int
port of Newchwang, which is ex- an estimated cost of $41,720,000.
tremely short on berthing space, It is planned within 10 years to establish » harbour 35 feet deep, two new piers,, each 107 feet long, with ample nooring facilities and are under construction. Consider. wharves. Six schemes were examinable conservation work has been ed before the decision was reached started on the Liao River, and the to establish the harbour in the die-harbour is being dredged. Both trict opposite the Whampoa. Mili-Mukden and Harbin are contem tary Academy. This is about thir-plating city waterworks and sewer teen miles cast of Canton" and systems. Two paper mills have been twenty miles from the "sea. It is proposed, and one may be construct.
ed this year.
STOKER EQUIPMENT FOR
planned to construct nine wharves nel ten warehouses all served by a branch railway connecting with
the Carton-Kowloon Railway. Can-
ton's industrial; area is to be `deve- Joped in the district, and a new
BATTERSEA
The Engineers of the London
unobtained None
*Out of 395 139 operating.
South-West England is the latest area to be dealt with. In Central Scotland the whole scheme is now in working order.
.
n the three-phase system, as is gl most invariably the case, an in- portant, stipulation of this kind in that the loading of the three phases must be exactly balanced. Even when the required conditions are satisfod, the measurement of kilo volt-amperes calls for relatively complicated apparatus,
In practice the demasids of power consumers are measured in kilovolt- amperes according to one of two theoretical methods... The first of eight equipments of similar design these depends upon the simultane
and steam output.
'COAL MINE ROPEWAY.
ropeway designed to handle filmanstone Colliery in Kent con- 3,000 tons of coal per day from the
ous measurement of kilowatts and watticas kilovolt ampares, and the aggregation of these two measure- ments vectorially to give a resultant quantity which is equal to the square root" of the sum of the squares of the componente. An af strument which is fundamentally ternative method is to use an in-
an ampere-hour meter calibrated
power house is to supply electricity Power Company have placed a to industrial plants and to light order with the Taylor Stoker Comnects the colliers with Dover Har Elio port. Part of the harbour pro-pany, Ltd, for the complete fuel bour, 7 miles away. It is design-for a declared pressure, but which ject in the erection of a steel bridge burning equipment for the first sec- the coal and to provide a convenient of voltage on each side of noxinal.. ed to reduce baunge charges on is compensated for small variationé connecting the harbour and the iption to be constructed of the Batter-direct method of connecting the pit There is a third method which is dustrial district. Each of the ning sea Power Station in London. This head with the sea. It is carried sometimes used, in which a stand- wharves is to be 700 feet long and equipment comprises uix Taylor on 177 standards, 30 feet high end and supply meter is compensated so 150 feet wido fully equipped for multiple, retort underfoed stokers, era are operated on 13 inch atect but only at a specified power factor. £70 foct apart. The coal contain that it registers" kilovolt-amperes; the transfer of cargo.
ench twenty retorts wide had forty-ropes and have a capacity of from This last method is of too approxi uine tnyeres long. These atokers 10 to 18 cwls. They are sepirated mate a character to be suitable for by 120 feet aml travel at a speed the calculation of a sum of money will, be equipped with rotary ash of 42 miles an hour. It has been which may be of the order of one- discharge mechanism which consistanceessary to erect 15 protecting half of the total charge for the of a deep pocket at the rear of bridges over the roads and railway power supply to a large consumer.
GOLD MINING IN MANCHURIA.
There are extensive gold deposits and these have been worked by primitive; methods for some years
New Basis Desirable.
tracka, “which interaoct the route of Gold mining on an important the stoker proper, at the bottom of the ropeway, and the sea tormint- seale, backed by foreign capital, is which are two large slowly revolv tion of the ropeway consists of two
The design of an accurate kilp likely to be commenced in Northing crushen rolls. Freheated air of tunnels, each a quarter of a mile.
long, cut through the cliff itself, volt ampere meter is a problem Manchuria voryTMalortly."
330 deg Fah will be used. The tunnel carrying the outward which has engaged the trration of stoker will fire six boilers and each journey rope and the other the in instrument engineers for my unit will be capable of producing ward journey ruta. A bunker with years, but so far no really satisfec
a capacity of 5,000 tons receives the tory solution of the problem has 350,000 lbs. of steam per hour encol at the seaward and. The out-basu found. The present position past. The gold near the surface, timously at 600 lbs, pressure. Any put of the Kent coalfield is still ex-regarding the metering of three- however, is now becoming exhaust pair of those units will supply sufondingly small compared with that phase power supplies is that, where- of the main coalfields of Britain, but as kilowatt-houry and reactive or ed and machinery, and dredging sviant steam for one 5,000 kw the seven miles ropeway mentioned wattlers kilovolt ampere-hours ean Thu necesitating-considerable turbian asiall doad The now aborg is an indiestion of the deterbo, measured with a high degree of dutlay of capital, are required if the Kraftwerk-West of the Berlin mination of the proprietors of the precision by standard meters, the Kent coalmines to operate the field determination of actual kilovolt ore at a greater depth is to be re- locurio Co. is to be supplied with on the most economical and efficient amperes can be carried out in oaly
*Continued on next Column.)
an approximate fashion by the use.
basic.
Hia entry-taking the form of a large, red-coloured" tlanging bell- was adjudged the best "by" an ex- pert committee, and he was award- ed the first prize of £20.
It is very unusual for a part. thne student to win this competi
tion," an L.C.C. official said. Mr. Salows began his art training three
rs ago at Battersea Polytechnic.
Success in this contest often, brings a man considerable, SUCCESS in commercial art. That is why we "get such a large entry?..
A LITTLE
care in setting up an advertisement often doubles its selling power.
"
is
It is that little extra thought and
which care, given to every advertisement drawn Hong in the office of Kong Daily Press, which brings good results.
Copyright 1. Adkinson
Members of the CM,A.
SHIPBUILDERS,
SHIP REPAIRERS,
BOILER MAKERS,
FORGE MASTERS,
OXY-ACETYLENE AND
ELECTRIC WELDERS, MECHANICAL AND
ELECTRICAL
ENGINEERS.
DRY DOCK-
TAIKOO DOCKYARD & ENGINEERING COMPANY
HONG KONG OF HONG
SALVAGE TUG “TAIKOO"-
WIRELESS CALL -
V.P.G.N. 800 Mgress'
LIMITED.
Length 797 Feet. Length on Blooks
750 Feet. Depth on Centre of
SM (H.W.0.S.T.) 84 ft. 8 ins.
THREE SLIPWAYS,
•Capable of Handling Ships Up to 4,009 Tons Displacement Electric Crane at Sea Wall. Capable of Lifting 100 Toas at 70 Feet Radlus.
BUTTERFIELD & SWIRE, Agents,
HONG KONG, CHINA & JAPAN. TEL ADDRESS: "TAIKODDOCK, HONG KONG. TELEPHONE: 30211 CALL-FLAG: “0” Oven “Ans. PexNANT.”
Registered
DAMP
Time juddles Damp Houser
PUDLO
BRAND
CEMENT WATERPROOFER.
Trose Mark
TEMPORARY REMEDIES
for dampness are never cheap. In a few years, they cost more than a really permanent and entirely satisfactory treatment with Portland Cement and 'PUDLO' Brand Waterproofer,
A booklet, in English or Chinese, describing the uses of 'PUDLO' will be gladly sent on request, by the Sole Agents for HONG KONG and SOUTH CHINA:
DODWELL & CO., LTD. CANTON. HONG KONG FOOCHOWA
COMPLETE ELECTRICAL INSTALLATIONS
C. M. A. CABLES.
and Estimates,
free on all types of
LIGHTING & POWER INSTALLATION
by an experienced
ELECTRICAL ENGINEER
retained at our Hong Kong Branch
The General Electric Co. (of China), Ltd.
QUEEN'S BUILDINGS,
HONG