1931-07-11 — Page 2

HONG KONG DAILY PRESS, SATURDAY

JULY 11, 1931.

Use Green Island Cement

for

Constructural Work of Every Description.

HOW

GREEN ISLAND CEMENT IS MADB

Green Island Cement is manufactured from hard limestone and clay. It is necessary that these materials should be finely ground in order that

thestorinis

may come into intimate contact with one another in the burning process.

The finely pulverised materials are mixed in a certain definite proportion, roughly one part of clay to three of limestone, and are fed to the Rotary Kilos.

In these kilns they meet the hot gases and flames generated by pulverised coal blown in at the other end of the kilns, and after various chemical actions, have taken place, they combine to form Portland Cement Clinker.

The Clinker is ground down with a small percentage of gypsum to regulate the setting time, and Green Island Portland Cement is thus produced.

Although sounding so simple, in reality the process is an intricate combination of mechanical, physical and chemical operations, needing great skill and care. Nothing but

accurate supervision will yieldstant and

results so

well-known with Green Island Cement, namely, strength, uniformity and reliability.

USE GREEN ISLAND CEMENT

Issued by the

GREEN ISLAND CEMENT CO., LTD.

2ND FLOOR,"

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THE

* Pablished by

DAILY PRES8, Ind., 11; for House Struct, Hongkong.

ENGINEERING AND BUILDING

CANTON AS A MODERN PORT.

ELABORATE PLANS FOR DEEP WATER HARBOUR.

FOUR PERIODS OF DEVELOPMENT

At this time when another upheaval in the national life of China has brought Canton into the focus of public attention it may bo intorcating disregarding political aspects-i to tako stock of the things that have been achieved in the southern Capital. From any viewpoint the record in arresting.

For more than twenty-dive denturies Yang Chen, the City of Rams in its classical designation, ninety miles from the sea on the historio Chukiang, or Pearl River, remained merely a largo Chi nese city, posscasing nothing to differentiate it from other Chinese citice. Through the centuries It unfolded its history after the manner of the age-old standarde, untouched by influences from the outer world that were brought, frit by Arab travelers, and, inter, in the fifteenth and sixteenth centuries, by. Portuguese, British and Dutch traders.

Canton remaine Chinese city completely under Chinese rule, but two decades have seen a mighty metamorphoses. Judged by modern concepts more progress has been made in Canton within the post twenty years than in the preceding twenty centuries, The city to-day with upwards of a million inhabitants challenges attention, as a world metropolis.

A GREAT ENTERPRISE.

SIAMESE RAILWAY

SCHEMES.

ELECTRIFICATION BEING CONSIDERED.

DIESEL ELECTRIC NEW PRIME MOVER. SHIP PROPULSION.

HICH SPEED-LENGTH RATIO.

DETAILS OF SHIP FOR SCOTTISH ISLES,

LIQUID THERMODYNAMIC MEDIUM.

now and highly original type of prime mover was described and Klustrated by sectional model and lantern slides in a paper by Diesel electric slip propulsion Mr. J. P. J. Malone presented be has had only a limited application for tho Reyal Society of Arts. As in Britain so that an important yet only three such engines of vari development.is.marked by its adopous types and sizes appear to have According to advices recently re- tion in the mater-ship Lochfyne, been built, but one or more of them ceived by the Department of Over- just completed for the MacBrayne have been under experimental study since 1915, and with the determina seas Trade in London from Mr. J. services to the Western Isles and [F. Johus, H. M. Consul-Gonora) at en the Clyde, This system of pro-tion of necessary physical constants Bangkok, in Siam, considerable pulsion has generally been regarded and the completion of the exper attention is being paid to railway 68 best

st suited for what are describ-mental runs of the second engine construction in that country. Mr. as double-purpose vessels, such it is stated that the stage has now Johns states that the north-eastern as fruit-carrying ships, in which been reached when designe suitable line, namely, that from Kornt to the auxiliary load is much greator for various commercial applications :| Warindr has been completed, the than in ordinary cargo, ships, OF can be developed.

final section from Brisa Kesato di tankorn, in which there is an The fundamental characteristic Warinds, a distance of 60.01 Emabnormally high part load, and for of this engine is that the modium having been opened to traffic on bulk carrying self discharging by which heat is dnverted into April 1, 1930.

ships, like the recently built cement work is used throughout in the It is not at present inteded to carrier Cement karrior. The form of a liquid instead of in that extend this line beyond Warindr, Lochfyne, however, is a coasting of steam, gas, or air, as in engincé which is on the river Me Moon, a passenger vessel Hor dimensions are of existing design.

principle tributary of the river Mekong. Aft, in length and 30ft, in beam, any liquid can be used, and a large road is, however, being constructed and she has a restricted draught number were tried, but so far from Warindr to Pimaol, from of 71t. din. Her speed of 163 knots water has been found the most which place there is already a me requires a power of 1,340 ah.. for satisfactory. The system depends tor road via Chong Mek to the propulsion, which is provided by fundamentally on using the dilata Mekong The first section of the two Davey-Paxman five-cylinder tion of water when

raised to Kon Kaen Line, from Tainon Diesel engine super-charged on the high temperature and pressure, the Chira (near Kerat) to Nohn Wat Buchi system by exhaust gas turbo, hontod water being ecoled in the a distance of 29 km., was open to driven blowers. These are direct heater in a continuous cycle, pasted. traffic in May, 1020. From Nohn upled ic shunt-wound generators into the cylinder of the engine Wat to Kon Kaen, a. distance of which supply two de propulsion to 156 km., the line is still under con motors having the control switch in a closed circuit to the heater for struction. In March last two ex-gear so arranged that bridge conrenewed use in the same way. By

tensions. to this line were sanction.

a distance of 170 km., and from

The total

do

work, and returned

the

present

Perhaps the most ambitious of all. As a part of the building of the the great projects at Canton is the port it is planned to construct aine direct linking of the city with the waarves, and immediately adjacent uutside world, giving Canton place to them, ten warehouses all served as a great world port by the con- by a branch railway, connecting the

trol of the equipment is, possible, this arrangement the hot part of - struction of a deep water harbour. harbour with the Canton-Kowlooned, from Kom Kaen to Nong Khair with each generator driving its the engine is confined to one and

which in to At an estimated cost of 841,720,000 railway Canton's industrial area

own motor or with either generator of the heater, which it is planned within 10 years to is to be developed in the district Ken Kaen to Nagor Panom, a disons driving the two motors.form consists of a number of con establish a harbour 35 feet deep along the river opposite Yuechua tanes of 220 km. ANA wherein the largest ocean streamers where, a new power house is to be: The survey is to be completed vessel of this type enables the centric tubular cells or thermody! will have ample mooring facilities cetablished to supply clectricity to within two years, and, provided extent of the achievement, from the namie piles, and both the expanded at wharves provided with all industrial, plants and to light the nothing unforeseen, ogeurs, it is point of view of marine propulsion, circulating-water through which to be readily assessed, since the the power is conveyed and the mo modern facilitice. The necessity port and a part of the hartour pro- expected, that both linds will be op for a deep water harbour has beject is the erection of a steel bridge coed te traffe by 1037, Both Nong size of ship adopted will approxative part of the engine in which mately represent the minimum ne- it is applied are kept constantly come inors and more apparent with connecting the harbour and the in- Khai land, Nagor Panom, are on

the river Mekong, the former being cesary to accommodate the ma pool. The design owes its ability the swift expansion of Canton's dustrial district.'' foreign trade through recent years. Each of the hine wharves to be close to the French Laos center of chiney required for propulsion at to develop economically sufficient 17 1020 imports of the city went to built are to be 0 feet long and Wieng-Chan, and the latter almost theparticular ship, speed because power principally to the facts that a total of Haikwan Thels 42,002,044 180 feet wide fully equipped for opposite Thakek, whence there is the deadweight oarried, comprising near to their critical temperaturo

the weight of the passengers and and pressure the dilatation of and exports to Haikwan, Tdels the transfer of cargo between ships a road to the Gulf of Tongking.

The electrifiention of portions of the comparatively small amount of quis, with ris cf temperature, in- 83,607,839,

and warehouses. The distance be

the Stat Railways is still under bunkers and stores, required for stead of being minute as at ordin As a detail of his scheme, of tween the wharves will be 400 feet consideration and a Swedish ex short voyages, is small, A, ship'sary temperatures is actually grea maybe ter than that of gases, and that national reconstruction Dr. Sun affording niple space for all ordi- pert firm has been engaged on a Yat Sen first suggested the building mary movement of shipping. The three year contract to go thorough speed in relation to the dimensions

by into the question. No immedi- is measured by its ratio to the liquids moving correctly in proper- of a harbour in 1024 at the mouth ten harehouses are to be located 23 ate decision in this matter is, there square root of the ship's length,y dimensioned films with metal of the Pearl River, at. Whampoa feet distant from the wharves and fore to be expected.

at an extremely high rate. Thus where surveys revealed the greatest each will be 540 feet long and to length of State Railways open to and this speed-length ratio in the walls part, with and receive hent traffic on September 30, 1930, was Lochfyne equals 1.12, thus in thermodynamic Tile exhibited natural depth of the stream feet wide. The warehouses will oc- 2,023 km.

proaching that of cross Channel the thickness of the film between ship practice. The pioneer high- Little was accomplished until after cupy an area of 48,600 square feet. the Nationalist forces conquered;

steamer King the province of Kwangtung in 1926. Then the Whampoa Harbour Combeen divided into four mittee was organized with Soong, Bun Fo, C. C. Wa and Chen Kung Po as members. The most important action taken by the com. mittee at that time was the forma tion of the Whampoa Harbour Company with a capital of 820,000,000,, half of which was to be. raised from public subscription and helf to be provided by the Canton city government. The intention an. nounced was to make Canton a free port and the task of starting the enterprise was entrusted to Mr. Kou Wei Lian, as chief architect. The Bureau of Finance was asked to appropriate 8500,000 to start, operations and an additional sum of 80,700,000 was asked for to carry out the first part of the construc tion work. Teng Tsu Yu became mresident of the company.

At the time the company - was. organized in June 1926 Canton was pouring its resources into the Nationalist military expedition that marched on the Yangtze and this caused delays in pushing the Harbour work.... After the National Government was organized Nanking active work on the big project was resumed under diree tion of the River. Conservancy Com mission of the Province of Kwang: tung

at

Six separate Bohemes and designs were examined before the decision was reached to establish the har- bour in the district known as Yao- chue, opposite the Whampoa Mili nry Academy Hiria is about this teen miles east of Canton and twenty miles from the senA motor road along the Chung Shan Memorial Road links Xuehue with Canton

: Four Periods. ⠀⠀ The construction of the port has

(h) Construction of the railway and railway yard at a cost of $200,000.. periods and

The total cost of construction the work and outlay for each period

work of the second period is have been planned in detail by the rated me $10,442,478 and the Committee as follows:—.......

work is to be completed in three

The First Period.

(a) Dredging of 2,009,089 ching of the river bed to a depth of 35 feet at the mouth of the river at a cost of 8,218,136. (b) Dredging of 1,108,041 ching of the river bed to a depth of 35 feet at a cost of 82,218,032.

(el Construction of the Grst part of the wharf, frontage of 2,373 feet at a cost of 8358,250. (d) Construction of the first and second wharves 100 feet long and 120 feet. wids at a cost of 830,000 each.

(e) Construction of the first, econd and third warehouses ench 39 feet long and 20 feet wide, at a cost of $250,000

(f) Purchaec of 1,100 now of land for the construction of railway railway station, power house, waterworks, cte. at a cost of $300,000. The total outlay covering the first period of the work is estimated at 89,042,103 and the work is to be completed within two years.

Second Period

(3) Dredging of 2,609 045-ching of river bed to a depth of 35 feet at the mouth of Penr! River at a cost of £5,128,186., (b) Dredging of 1,100,011 thing

of river bed tobi depth of 25 feet at a cost of 87,218,082:--: (a) Construation of shirt: fron- tnge 2,876 feet at a cost of 8350,250,

(d) Construction of the third and fourth wharves at a cost of 8850,000

(e) Construction of the fourth,

fifth and sixth warehouses, a

costet $250,000 cach

years.

The Third Period,

pressure

turbine

George V., which was designed for similar service, had a length 260ft and a beam or 32ft., with draught of about 8ft. Gin, and speed of 20.78 knots, so that speed-length ratio was 1.29.

Higher Relative Speed.

the concentric tubes was 0.01in, A characteristic device used in apply- ing the system is that the alterna- tions of heating and cooling in the thermodynamic piles are affected by' a moving the pile mechanically so that the ends are brought altern- ately into the positions where they nre heated or cooled. The supply it thus appears that a, somewhat of hot gas to the heating unit of higher relative speed, under imit the furnace from which the heat ing conditions, is still possible with to be communicated to the hot end. high-pressure steam machinery than of the pie is derived is similarly with Diesel-electric drive, but due effected by mechanical means. It regard must be had for the scale will be observed that the use of the effect of the bigger dimensions of thermodynamic liquid in a closed the King George V., because of the oircuit eliminates the mood for feed (d) Construction of the fifth and higher speed; in permitting better water, and thanks to the cool-cylin"

(a) Dredging of 2,009,009 ching of river bed at the mouth of the river at a cost of 85,129,130.

(b) Dredging of 1,109,611 ching of river bed at a cost of 82,128,062, (e) Construction of wharf fron

dage 2,378 feet at a cost of $356,250.

sixth wharves at a cost of 8550,000 each,

Butilization of the steel weight andor of the engine, and, indeed, to

(e) Construction of the seventh the hull, since certain factors are the whole of the mechanism, pro-

and eighth warehouses at a to some extent independent of size.blems of lubrication are simplified. cost of $250,000 each.

(D) Construction of the ninth and

Bigger dimensions than are no High claims are made for the

$150,000 each, tenth warehouses at a cost of cessary for buoyancy may likewise

(g) Construction of waterworks

be adopted in a slower ship to protonomy, convenience, and ther at a cost of 8400,000 vie adequats dock space for advantages to be expected from the design in ita applications to Jo0o- The total cost for construction number of passengers to be curried, motive, marine, lorry, and other work of the Third Period is and this consideration would ap engines, and its further develop- estimated at 810,092,568, and the

work is to be completed with pour to apply in the case of the meat will be watched with interest. in two years.

The Fourth Period.

(a) Dredging of 2,218,082 ching

Lochfyne,

For these reasons the achievement

of realizing a speed-ength ration the laws of similitude to higher

present instance,

The General Steam Navigation

of river bed at the mouth of of 1.12 on a ship length of 18ft. spends than that readied in the the river... at a cost of brings Diesel-electric propulsion 85,198,136-1-

within the range of possibility for most types of ship, because of the concentration rof weight in respect of power it provides.

(b) Dredging of 1,109,041 ching of river bed at a cost of

82,216,082

(c) Construction of wharf fron

taga 2,375 feet at a cost of 8356,250,

Company intend to construct a new vessel for their Thames passenger service, and it is understood that The Economic Factor; the claims of Diesel-electric drive Economic factors affecting the for propulsion have been closely in- operation of such proposals must, vestigated Such a Mossel would however, be taken into considera operate for a comparatively short and twelfth warehouses at a tion oven when the practicability season, so that any savinge in cost of $150,000 each,

(d) Construction of the seventh

nighth and ninth wharves at a cost of $530,000 each

(6) Construction of the eleventh

(1) Construction of power house of their application has been esta oporating cost resulting from its necessary informa adoption would be outweighed by blished. The nt a cost of 8500,000.00 (g) Construction of railway work tion can be obtained with certainty the standing charges on the higher

shopita tost $500,000. (1) Construction of railway

(h) Ascellaneous costs 8500,000 station at a cost of 8400,000. The total cost for construction Construction" B£et werkers" | "work of the Fourth Period dwelling

cost of estimated at 871942,488 and the $200,000 AE

work is to be finished in three (Continued on next Columin.)

only from working examples, but lirat cost of such mannery White up,g For this rea will be provided by the Lochfyne the reasor it laid and by the nature of the chinery son, it is believed, steam propus-

tich by.

ta ba retained this ser will be capable of appl (Continued a