1932-01-30 — Page 2

Page

Use Green Island Cement

for

Constructural Work of

Every Description.

HOW GREEN ISLAND CEMENT IS MADE

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

In these kilns they meet the hot gases and femes 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 constant and accurate supervision will yield the results so well-known with Green Island Cement, namely, strength, uniformity and reliability."

..th

USE GREEN ISLAND CEMENT

!|

Issued by the

GREEN ISLAND CEMENT CO., LTD.

2ND FLOOR,

EXODANOM BUILDING,

HONG KONG DAILY PRESS, SATURDAY, JANUARY 30, 1932.

ENGINEERING AND BUILDING

"Under and Over the Thames

TUNNELS AND BRIDGES THAT HAVE

·MADE HISTORY.

RECORD OF MANY FAILURES AND MISHAPS--AND TRIUMPHS.

earringe en rails. It is now used to carry water-mains belonging to the Metropolitan Water Board-

Blackwall Tunnel was opened to the public on May 2, 1887, and Ro thorhithe Tangel followed on

Juna

12, 1908.

Footway tunnels were constructed at Greenwich and Woolwich, and there are, of course, many other tunnels under the river, construct - ed for the Tube Railways and the Metropolitan Water Board.

LONDON BRIDGES.

Ts occurred to Sir Mare Leam, the company received the Royal bard Brunei, a native of France Assens on June 25, 1824, and the early in the nineteenth century, to work of driving a shaft contiguora edoet the crossing of the river by to Cow Court, Rotherhithe, and at The first historical roferance to a tunnel, but before this tunnel was a distance of 141 ft. from the river. bridge at London is in the year 904. constructed of commenced, and as early the wax uommenced on February 10, This bridge was

The shaft, 30 ft." in diams-timber and replaced a ferry. The your 1798, Mr. Ralph Dodd had 1825. proposed a cylindrical furuel, 18 ter, was sunk to the required depth Arst stone bridge was begun in 1170 ft. in diameter from Gravesend to of, 821 ft. below high water on and completed in 1200, a constrúe" Tilbury, at an estimated cost of June 6; and the work of boring the tional period of 33 years. Its de 15,008). The work was commenced tunnel, by the aid of a shield which molition was commenced on Novem by the sinking of a shaft at Grave- Brunel had invented, was commencer 2, 1931, so that it had remain-

Fed on November - 28. esnd, which absorbed all the money | raised, and as further faancial aid

was not forthcoming, the work" was

abandoned.

ROTHERHITHE TO LIMEHOUSE.

PROJECT ABANDONED. »

ed for a period of 825 years, and ∙its removal was ânally completed in 1934. The question of its demoli tion was not, however, allowed-to Water broke into the tunnel al pass without severe opposition. It most from the commencement, and had been in existence for upwards beerma more and more difficult to of six couturies, and had become 'n deal with me the tunnel "advanced.rolio very dear to the hearts of the On April 21, 1897, at a distance of citizens of London, and much water about 540 ft, stones, brickbats, had passed under it between the pieces of coal, bones and fragment times when the question of its de of glas and china came down into molition was first raised and finally the frames. An examination of the decided. river bed, which was made by means of a diving-bell, rovealed a considerable depression, and the

CHANGES IN RIVER BED,

Another "was" projected by Mr Vazie in 1802, from Rotherhithe to Limehouse, but after an expend fure, 17,000% on the sinking of a shaft 11 in diameter to a depth of 49 ft., the work was suspended

The removal of Old London until further funds were available and proved so leos, that an iron

nd oculd be pushed down to the bridge had an immediate effect, in Eventually Vazie succeeded, by frames. Subsequently, an iron pipe deopening the river-bed, and the menns of a caission, in comploting was passed through the ground fostendant results were the failur

of the foundations of Mylac's the diving-beil inte. the tunnel and the shaft through the gravel to a

some gold pins were passed up the bridge at Blackfriars in 1836, and depth of 6 ft. below high water. tube to serve as mementoes of the

the quickly following failure of Labelye's Old Westminster bridge The work of driving a heading singular event. On May 19, the

At Blackfriars, 10 years after, Old about 14 ft. in sectional area was water broke in with a roar, carry London bridge had been removed, then taken over by Mr. Trovithick, ing overything before" it, the pen the river, bed was 6 ft. lower. The but the water broke in and ficodeddenly extinguished and the noble removal of the bridge, however, i the heading on four occasions, the work which only a few hours be- although the main cause, was not last and most serious being in 1807. fore had commanded the homage of

(air rushed out, the lights were sud..

the sole cause of the altered con- dition of the bed of the river į

when the work had been advanced an admiring public was consigned contributory causes were the

to a length of 1,118 ft. The face of the heading was then timbered and the work abandoned..

After this even

143

to darkness and solitude," Another!

moval of Old Blackfriars and

examination was made by divingWestminster bridges and the dredg bell, when the shield was found to

be in place, and by dropping ing away of the shoals in the river below, particularly the extensive

almost out of the bell we were en-

a company was abled to place one foot upon the shunt which had grown at Dagen- formed in. 1823 to carry out the back of the top slaves and other ham in Halfway Bench: Thames tunnel project of Sir Isama-on the brickwork of the arch." By

bard Brunel A Bill incorporating

RIV

GARAGES and CAR

OWNERS

WAKATANY

LARGE STOCKS BALL BEARINGS CARRIED

́ ́ FOR "ALL" MAKES OF CARS

APPLY 30

WATERLOO BRIDGE.

June 11,19,500 "cub. ft. of clay and. gravel had been dumped in the

Waterloo bridge was authorised hole, and by November 10 the tunnel in 1800, an Strnad, bridge, and its had been sufficiently restored for the resumption of work. The water picsent name was only given to it. broke in again on January 19, 1998, in 1918 after the battle of Water and drowned two of the miners | loo. Mr. John Kennía WAS ap- As the funds of the company had pointed engineer for the work, and become exhausted, it was decided,

{

in July, 1828, to block up the the first stone was Inid,on October frames and stop the work, pending, 11, 1911. This was the first bridge an appeal to be minde to the counto "he built, fu the Thames where try for the means necessary to cofferdame were used for laying the complete the undertaking.

foundations. The bridge was open-

SUCCESS AT LAST"

ed on June 18, 1817. In 1882, it was discovered that the founda-

In 1835, money was, advanced by tions of the bridge were being ex. the Government, and a shield was posed by the acour of the river, constructed by Messrs. Rennio necessitating remedial measures, This was fixed in March, 1820, and which were completed in 1886. The the work was resumed, and, except recent history of further settlements lor ons delay of 8 weeks due to som

of th

piers of this bridge. another, flooding, the tunnel was is well known to all, and the re driven without any further serious medial measures have still to bë interruption until its completion in dealded apo

DRAVI

BELOW TEDDINGTON.

1842. For 20 years afterwards it was one of the recognised sights of London, but, in 1885 the company were glad to sell it, forque-third

of its original cont

to the Londen Railway,

Company for use below Teddington, note may, in

‚ na ní

Of the many other road and rail- way bridges across the tidal Thames East particular, be made of the Tower

railway tunne

particular, be made of the Tower Other tunnels under the river fol bridge, but from the designs of lowed, namely, the Tower subway the late Bir John Wells Barry. from Tower Hill to Tooley StreetK.C., Fast President, Inst. C.E., constructed in 1809. It is an iron and completed in 1994, and South- tube, 7 ft. in diameter, and is wark bridge, a three-atch cust-from mohed by sada o ft. in depth bridge completed in 1810-from the award dped at each end. It was intended for designs of Rennie, and r

passengers who were to be drawn constructed before and after the backwards and forwards in a small war on a five-span structure.

DODWELL & Co., LTD.

^

EXPERT

BUYING

SERVICE

For years we have been buyers for Foreign and Colonial Firms. We possess the requisite expert knowledge and can render you valuable service.

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DUSSEAL.

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WALLS, AND IS AN EXCELLENT

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FOR FURTHER PARTICULARS APPLY TO :-

بریم

W. R. LOXLEY & CO.

YORK BUILDING, CHATER ROAD.

THE EXPRESS LIFT CO., LTD.

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SMITH, MAJOR & STEVENS, LTD.

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