1932-09-17 — Page 2

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HONG KONG DAILY PRESS, SATURDAY, SEPTEMBER 17, 1932.

ENGINEERING AND BUILDING

THE QUADROPOD. QUICK CHANGE ARTISTS.

NEW STEAM ENGINE FOR

MARINE WORK.

With the demand for economy to meet the exacting conditions in the freight market marine engineers'

BRIDGE DEMOLISHED

AND DEPLACED

WITHIN 7 HOURS,

On Sunday, July 17 the L.M.S. railway bridge crossing the Buxton.

Bakewell Road near Buxton was

DEVELOPMENTS AT MOSCOW.

UNDERGROUND RAILWAY

PLANS.

Moscow's first tube station is now

have recently carried out many passed over by a train for the last being built, says Reutor's Moscow improvemente in various methods time at 12.35 a.m. B 7.80 3.m. on correspondent, in the heart of the of propulsion, and the reciprocat the same day this bridge had been city, as part of a great plan for an ing steam engine is receiving as entirely demolished and a new seci

relieve much attention as any. The Cen-bridge weighing 700 tons rolled into underground railway to tral Marine Engine Works, West position ready to be crossed by the traffic problems. Already twenty shafts have been sunk and two of Hartlepool, who are noted for Sunday, trains,

high-pressure" quadruple expansion The new bridge had been pre-them completed for the first sec enginca, have introduced an im-viously erected on the site behind

GREAT CANADIAN .. WATERWAY OPENED

WELLAND CANAL JOINS TWO LAKES.

Toronto, Canada-When, the 1

SHOWA STEEL WORKS.

S.M.R. DIRECTOR ON

"PROPOSED IRON

COMBINE,

Admiral Gado, director of the

the Showa Steel

Works problem, as well as the projected merger of Japaneso iron loundries.

Lemoyne, 033 feet long and the South Manchuria Railway Com- largest freight bont on the Great pany, has now returned to Dairen Lakes of North America, steamed from Tokyo where he went in con

with nection I through the new Welland Ship Canal with 575,000 bushels of wheat; a record-breaking cargo, there was dedicated to the shipping of the world an engineering achievement

Interviewed by the Asahi cor- which ranks high in the world's list cepondent in Dairen; Admiral of great accomplishments. Formal Gedo declared that since the recent opening by the Governor-General dispute over the marketing of of Canada was an interesting fee. Fushan coal in Japan the question ture of the Imperial Economic Con- of economic unity between. Japan and Manchuria has become press- ing. The first industry to be unified The Welland Ship Canal is a vital is that of iron. The Japanese Gov

ference,

proved steam reciprocabor known the old bridge and had been laid tion of the line, while a tunnel is link in a. great inland transporta-rnment attaches much importance.

was

The Anshun and the Penkiku

on ball-bearing tracks. As soon as being dug at one of the terminale. tion system which links lake ports to control of the iron industry, and as the "Quadropod.” As its name

upper Superior with suggests, it is a quadruple expan- the old bridge was removed the Altogether 92 shafts will be neces- on

the originally wished to take action sion engine, but many new fea. new bridge could times he rolled Bary for this piece of line. When Atlantis. It unites Like Erie and daring the Diet session.

Lake Ontario by a channel 95 tures have been introduced with the along these ball-bearings into posi

the railway is finished the lines miles long paralleling the Niagara | object of obtaining the lowut 'pos-

tion. sible steam consumption consistont The whole operation could only will be arranged like the spokes of River ten miles distant, and in its Mines are the next largest to the with simplicity and realisbility. be carried through successfully by a wheel converging towards the length overcomes the drop of 387 Yawata Works, and naturally their feet which, on the river brings into co-operation with Japanese four- The first engine of this type, the most careful organization and centre of the city.

existence the mighty Niagara Falls, dries becomes necessary. The mat. attention

and to detail, working at a pressure of 960lb. per:

Materials and equipment are be The work was undertaken by theter will be studied by the manage. square inch superheated to about achieved by the bridge-builders, 590deg. F., has been installed on Dorman, Long & Co., Ltd., who for ing brought to the spot, and some Federal Government nineteen years ment of the Yawata Works whose board the Kepwickhall, built by some time have been re-placing seven miles are to be completed by ago, and has been pursued under representatives are still in Tokyo. William Gray and Co., Ltd., West bridges for the L.M. and who the end of next year. This forecast four Prime Ministers. The cost was In his opinion it is of urgent

above £24,000,000

necessity to settle the Shown Steel Hartlepool, to the order of the hope to improve even on this re- is made by Mr. Rottert, the chief

Works issue. In 1920 Japan con. West Hartlepool Steam Naviga-cord time in the future.

engineer for the building of the

Elimination of Rapie sume 2,200,000 tens of steel materi- tion Co., Ltd. The Kepwickhalla,

Moscow Underground. He WAS In construction of the canal theals, but last year this increased to fitted with three large, boilers equipped with smoketube superben-units with a receiver between them, formerly assistant chief engineer Government has had in mind its 2.700.000 tons. There will be a fur-

the cycle of operations in cach unit ters and Howden's system of forced

for the building of the Dniepros adaptation to what is called the St. ther increase, and therefore the being similar. The H.P. and first

Lawrence Waterway project, for Shorea scheme must be materialised draught with "Cmew" super air.

M.P. cylinders form the first unit, troy Spillway, which raises the which Cannon and the United without delay. preheaters.

steam being admitted to each and level of the Dnieper where rapids States now have signed a treaty- of the H.P. cylinder by a drop made it impassable by 135 feet, and subject, however, to ratification by provide for ships of over-increasing valve, and after expanding in this

Parliament and Congress. The pro length, and the chaal has a naviga ject involves the elimination of

Main Features.

Outstanding features of tha! "Quadroped" engine, distinguish-

cylinder is released by a second which is claimed by the Soviets to

the first M.P. cylinder, and after The total cost of construction of or triple expansion engine, are the!)

doing its work there is released inte patented system of steam distribu-'

the railway, the length of which a steam receiver, the eranks work.

ing it fror the ordinary quadruple drop valve. It passes directly into be the largeet dam in the world. rapids and provision of channels for tion depth of 25 feet, a width of 80 the largest lake boats in the inter- feet. The average trip through national section of the St. Law the canal will take eight hours, tion, and the drop. valves which ing in conjunction with the two will be over fifty miles, is expected rence, and thus it would be prac-although it has been made in a have been fitted to each cylinder cylinders being placed 180 degrees to exceed £146,000,000. place of the usual slide or piston with each other. The second M.P

"Owing, to the peculiar substrata valves.

and L.P. cylinders form the second The system of steam distribution unit, taking steata from the receiver, of Moscow-chiefly sand containing divides the four cylinders into two and exhausting into the condenser.

(Continued on next Golumn.)

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by an experienced

ELECTRICAL ENGINEER

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QUEEN'S BUILDINGS,

HONG KONG

much water-io existing system of The two cranks of each unit are tube construction has been found placed at 180 degs, to each other, altogether advisable. Briti, and at 90 degs. to those of the other French, and German experta hav unit, thus the four cranks of the engine are placed at intervals of ∞ dega.

Advantages.

little more than six,

The canal, has safeguards which

ticable for all but the largest pas sengers linera to shil 2,000 miles island by river and lake and canal to the head of Lake Superior. In are new developments of engineer. the proposed arrangement of costs

ing skill, Accidents occasioned by Canada is given credit for expen- ditures on the Welland Canal, and incorrect timing of control opern- the total remaining cost to the tion or improper use of any control' Dominion will be about £6,000,000, are obviated by electrical unita all been consulted, for Moscow The province of Ontario, in return

for valuable power rights, is to can which will operatic only in the cory | wishes to take advantage of the

tribute some £12,000,000.

rect sequence. Every gate, each pooled experience of the world in

of the 21 moveable bridges which This system has several advant-the building of her railway. Th

cross the canal, every signal, is. ages as compared with the usual

French and German experts are in arrangement adopted with quadru-

operated electrically. Every gate- pls or triple engines, among which favour of the tube being built just

and the gate leaves are five feet are:-The losses due to steam re- below the surface; the British ex- preceding it.

thick and vary in weight from 100 ceivers are considerably reduced, na perts are still working on the pro- ranks with Panama, Kiel,. Suez,,

to 400 tons-is duplicated in case only one receiver is required with

Manchester and North Sea canals jeat, and some of them have sug. the "Quadroped" engine; a more

Construction in- as among the greatest in the world, of emergency. even turning moment is occured: Rested a combination of deep-lying It has seven service locks with involved excavation of 0,070,000 cubic and the number of drop valve, and subsurface tracks. One-third average lift of 48 feet, and the yards of rock and 61,195,000 cubic necessary is four fewer than would of the first line that is, over two guard lock is 1,350 feet, longest and by required with a normal qundru- miles-pill, in any case, be built largest in existence. The service ple-expansion engine, resulting in in accordance with the London me locks are 800 feet long, built to a saving of energy and raising the thiod of deep-lying tracts,

(@ontinued on sitas Vutónki mechanical efficiency of the engine.

The drop valves, of the double. beat typo, are all situated at the back of the engine, thus permit. ting the cylinders to be placed closer together, with a consequent anying of space and weight.

A point of importance is the de |sign of the cages which form the seats for the drop valves, these, together with the drop valves, be ing made of spediti mixture of, heat-resisting cast iron. The cages are arranged so that they are free to expand in their chambers, and the areas through the valves and the ports in the cages are ample to ensure that the pressure drop |is a minimum.^. Each cage is bolted to the valve chest, of which it forms the cover, and, together with the valvo, spindle, and spring, can bá withdrawn as onė unit.

High Superheat.....

The employment of drop valves permite the use of a high degree of stiperheat, and also practically. eliminates the lossen die doɔ valve leakage Cams mounted on rocking shafts actuate the valves, these shafts being driven by two sets of link motion gear, one being requir ed for each unit.

Mechanical lubrication is provid | ed_for, the, drop -valves and the H.P. and 1st M.P. pistons, the Jubricators being conveniently plac ed on the columns at the front of the engine. It is anticipated that the Quadropod engine will have an appreciable lower steam con sumption than the normal type of quadruple or triple expansion er gina,

Banks with Suez and Panama.

The Welland Canal has had three predecessors, the first opened in 1890 and each larger than the one The new Welland

yards of earth, the use of more than 10,000,000 pounds of steel anť. 3,516,000 cubic yards of concrete.

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Use Green Island Cement

WHERE GREEN ISLAND DEMENT IS MADE.

VIEW OF THE GREEN ISLAND CEMENT

TAKEN FROM THE SEA.

Issued by the

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