Page
SHIPBUILDERS, SHIP REPAIRERS,
BOILER MAKERS,
FORGE MASTERS, OXY-ACETYLENE_AND
ELECTRIC WELDERS, MECHANICAL AND
ELECTRICAL
ENGINEERS.
-DRY DOCK-
Length 787 Feet. Length on Blocks 760 Feet.
OF HONG KONG, LIMITED.
THE TAIKOO DOCKYARD & ENGINEERING COMPANY
WIRELESS CALL, `; i V.P.G.N. 600 Merxna
SALVAGE Tug "Taikoo"
Depth on Centre of SO! (H.W.Q.S.T.) 34. ft. 6 ina
-THREE SLIPWAYS.—
Capable of Handling Ships Up to 4,11 Tons Displacement
Electric Grane at Sen Wall -Capable of Lifting 100 Tons at 70 Feet Radius.
BUTTERFIELD & SWIRE, Agents,
HONG KONG, CHINA & JAPAN.......
TEL ADRESS: "TAIKOGDOCK, Hong Kong" TELEHONE: 30211
CALL FLAG: *0* OVER "ANS. PENNANT."
Shanks
&
CO. LTD.
#BARRHEAD-SCOTLAND
HONG KONG DAILY PRESS, SATURDAY, DECEMBER 30, 1933.
ENGINEERING AND BUILDING
CARDIFF STEEL
WORDS PLANS
In view of the declaratih “by (President
that
NITROGEN-HARDENED
ENGINE CYLINDER
of the Board of Tride) has the Process For Case-Hardening
present Government had ng inten tion whatever of withdrawing the import tariff on steel, it is believed that the scheme of Messrs. British (Guest Keen Baldwins) Iron and Steel Company, Limited, for re- building the Dowlais-Cardiff steel works at a cost of 2,000,000!. will be pushed on with all speed. Meanwhile, the demolition of the old steel works is proceeding. 3
COALING PLANT FOR
LOCOMOTIVES
Alloy Castings
Of the newer types of alloy cast: est was the fact that the differences irana which have seen introduced between the wear values of ordinary during recent years those containing cast iron, alloy cast irons in the aluminium and chromium are of "as cast" condition, and hardened very great interest and importance, and tempered cast irons were not It has been shown that these alloy & very large order -1 cast-irons can be ease hardened by
IRON AND STEEL HAVE MADE ADVANCES
Many Improvements Since 1905
Great advance had been made, in all probability, hever be entirely
overcome." This statement” was strictly true because the properties of an element could not be altered, but ità implications bearing on the alloys of which iron was the base. had been completely contradicted
in steel metallurgy since 1905, Engineering science and practice were successful just as far as the available materials would allow, and the great advances th eng- ineering during the past twenty- eight years had depended ultimate-by subsequent events. The third ly on the Improvement in the and last matter was the subject. quality of metals and the exten- of creep and the heat-resisttrig sion of the range of properties steels. The word "creep" was a the motor-cat was in its infancy the subject had been read by Mr. which they displayed. In 1905, new one, and the first paper on
the seroplane was an experimental! J. H. S. Dickenson, at the autumn toy. Since then these industries' meeting of the Institute in 1922. had developed rapidly, and this Since then the phenomenon had had been accompanied by a steady been the subject of intensive study demand for steals of better quality all over the world, and as a result, The experiments clearly demon- and with greater diversity of pro- the employment of metals at strate the improved wear-resisting perties. The automobile industry elevated temperatures had entered properties of the super hard nitro-in particular had been responsible a new phase. As methods of gen-hardened cast iron under in
studying the mechanical behaviour ernal combustion engine cylinder
of metals at elevated tempera- tures had improved, the manufac- conditions. They may be used sinc to demonstrate the stability of the
ture of alloys which resisted creep and oxidation advanced, and heat- these same conditions. A short a perimental test was made with petrol. doped with "Ethyl " effect due to the presence of this fluid was observed."
the nitrogen-hardening process, and as a result of this treatment they acquired surface hardnesses, men= sured by the diamond-hardness The London and North Eastern methad, of 1,000 Brinell and over Railway Company have just placed The nitrogen-hardening process in ar contract with Messrs. H. Lees and volves the exposure of the articles Company Limited, Glasgow, for to an atmosphere of anhydrous pitrogen-hardened surface under the erection of an electrical coaling ammonia as at a temperature of plant for locomotives at Boston. 500 deg. 4. This temperature, which Many of these plants have already is below, red heat is sufficiently low been installed by the London and as to enable finished ground articles North Eastern Railway in recent to be treated without scaling. or. years, and the approximate time distortion. After treatment very of coating a locomotive has been re-slight rectification and polishing ja duced to about three minutes, an all that is necessary to render the against about half an hour by the articles fit for.-PETVICE, old method. En. ·
SANITARY WARE
MODERN SANITARY EARTHENWARE APPLIANCES IN "WHITE & COLOUR
THE JARDINE ENGINEERING CORPORATION, LD, 14, PEDDER ST. (Incorporated under the Companies: Ordinances of Hongkong) HONG KONG
SOLE AGENTS
SHAMEEN. CANTON,
For Constructural Work of Every
Description
Use Green Island Cement
TWO REFLEX TYPE ROTARY KILNS HAVING AN OVER ALL LENGTH OF 254 FEET. THESE KILNS ARE USED MANUFACTURE GREEN ISLAND CEMENT.
Issued by the
GREEN ISLAND CEMENT CO., LTD.
2ND FLOOR
EXCHANGE BUILDING
One of the most important ap-. plications of cast iron surface hardened in this manner is that of cylinders audcy lizers for various types of ines, pumps, and compressors. The resistance to
No
for the extension of the use of alloy steels and for great advances in such fabrication processes as drop forging, tube making, and sheet pressing. In conclusion, he would like to mention three matters resisting steels were now giving connected with steel metallurgy in - satisfactory- service at tempera- which the city of Shefeld hadtures unheard of ten years - ago... The In short, there had been a revolu- played an important part. Arst of these was the work of the tion in engineering practice since Heterogeneity Committee, set up some years ago "under the chair manship of Dr. W. H. Hatdeld. The object of the committee was
CANADA'S GIANT to improve the quality of ordinary
TELESCOPE
wear anticipated from the super Instrument Weighing
hard surfaces of cast-iron cylinders of this material is of vital interest to all engine designers. The reenite of an experimental study of the re- sistance to wear of nitrogen-hard- ened cast-iron cylinders were pub lished by Mr. J. E. Hurat în a paper before the recent autumn meeting of the Iron and Steel Institute in Shefeld,
50 Tons
A few miles from Toronto, on an eminence 800 ft. above sea level, a new Canadian observatory is be- in constructed as an adjunct, to the University of Toronto, and the
instrument,
mild steel, and the new scientific information contained in the re- ports issued from time to time was of far-reaching importance. It f was also of very great, tmportance.. to remember, however, that for the first time a nimber of people had been drawn from the industry.
the Iron and Steel Institute had last met in Shemeld, just a generation previously.
NEW RAILWAY IN SHENSI
and were working together on Reviving A Thirty
one subject.
The second matter to which he wished to refer was the origin and development of stainless steels These, as far as the fron-chromium series was concerned, would always be associated with the name of Mr. Harry Brearley. It was doubt- ful whether the discovery of a really effective rust-resisting steel had ever been seriously anticipated hy metallurgists before it was actually found. Writing in 1910, Mesars, Cushman and Gardner had is a character inherent in the stated that "the tendency to rust element known as iron and will,
THE "ELECTRIC” EYE
Year Old Project
Construction work is progressing on the Government, railway linė between Yutze and Talku, în Cen- trai Shanst. This railway connecta
with the Cheng-Tai Line at Zutze sixty II south east of Taiyuan. "Its completion will, therefore, give Taiku direct rail communication with Shihchlachuang and Taiyuan, s shipment of freight to and from and will make possible the through
any point of the Cheng-Tai Line: """ Just before the Revolution of 1911, a railway line was surveyed over this seventy-li ́ ronte. The embankment was completed as far as Talku, three stations were built," and rails were laid for a short dis- tance. The Revolution brought the work to a standstill, and nothing has been done on the line for more than twenty years.
In deciding upon the experimen-glish firm Air Howard Grubb tal procedure it was considered that Parsons and Co. have just finish the available types of abrasion-ed constructing for the new obser- were not vatory a reflecting telescope with wear testing machines likely to give results of value, in an aperture of 74 in
When this giant determining the comparative resis- tance of materials to wear in engine which weighs over fifty tons is in cylinders. For this reason the ex-use Canada will possess the second periments were carried out under largest telescope in the world, the actual engine cylinder conditions only one which exceeds it in size To obtain results of a decisive being the 100 in reflector present- character the teste under these ed by the American millionaire, conditions were of very prolonged Mr. Hooker, to the Mount Wilson duration and actually occupied Observatory, California, The Can- over three years,, during which adian National Observatory at several individual engine tests were Ottawa has for some years pos- conducted
over running-time sessed a 72-in. Instrument at To- period equivalent to 10,000 miles ronto, the Dominion can boast the
A robot detective is at work in road running, Other tests
were two biggest telescopes in the Bri- the electric lamp world.
During the past summer, the old carried out under actual road run tish Empire. The largest telescope ning conditions for a similar period. in this country is the 36-in. reflec- but more generally known as ab
Technically styled a Photometer, embankment was repaired as far.
as Talk; and rails were laid froz The experiments undertaken du tor presented by Mr. W. J. Zapp to electric eye, this instrument can the Cher-Tai Line, at Yutze, to plicate actual industrial conditions, the Royal Observatory at Green-measure the light output and the the fistag Ho a distance of about a point which is of great importanwich two years ago.
consumption of a lamp, or make a ten for several months, work- ce, when dealing with such a com-
But the United States is not con- comparison of these factors between trains have been running on this plex property as resistance to
tent with possessing the 100-in any two lamps at the same time section of the road. But unusually reflector at Mount Wilson, Plans A claim may be made that a cer
wear.
METHOD OF TEST
Ingenious Device
à mirror 200 in. in dimeter, which cheap. The "Electric Eys get have been drawn up for one with tain type of foreign lamp is dirt In the experiments cylinder liners it is proposed to erect on one of busy, and quickly proves whether of nitrogen-hardened cast iron the peaks of the Rocky Mountains the lamp is actually cheap or whe whose surface Hardness was recorded in California Unlike the mirrors ther in current consumption the at approximately 1,000 Firth dia 01 other, reflecting telescopes, the difference in cost between it sud a mond hardness were compared with mirrors for the proposed 200-In, more highly priced article is not, liners of plain unalloyed cast iron reflector is to be made not of glass in fact, a very expensive business chromium alloy cast iron, and nickel-which has been ruled out as im- indeed, chromium cast iron, both of these practicable for so large a mirror-We are offering to any tamp Iatter being tested in the "as cast but of fused quartz, and the Gen-user in this entry a demonstra and hardened and tempered condi-eral Electric Company has offered tion of the efficiency of one of our tion. The approximate hardnesses to make the mirror for the mere amps against any lamp casting of these materials were 20 to cost of labour and materials.
below the Electrio Lamp Manufac 230 Brinell for the ordinary and
turers Association's fixed price. chromium alloy cast, icon, in theven that huge telescope may stated a representative of Meners. as cast condition sad 480 to 300 millionaires can be found willing device to an "Evening: Standard
soon be outclassed--if American Philips lamps, the inventors of the Brinelt for the materials in the hardened and tempered condition, All tests were carried out for per lods of 10,000 miles or multiples of been put at £2,500,000. A well-tious have already been given In this period, and the pylinder wear known American astronomer Pro- some cases the efficiency of the so was determined by a comparison fessor, Todd. has, indeed, seriously called cheap lamp is 85 per cent. of the maximum.ameter after the put forward a project for a 50-ft. lower than that of the British arti test with the original diameter of reflecting telescope which could be cle. The average, however, ranges the cylinder bore Following a constructed, he believes, for quite from 10 10 25 per cent, lower: common and, well-understood praca modest sum. His idea is to use tice, the maximum wear was ex- a disused mine shaft in the Andes pressed in miles per one thousandth for the tube, and rotating met of an inch wear, obtained by divid-cury for the mirror. The focus of ing the total miles by the maximum this telescope would be 1200 1t, wear expressed in thousandths of It was recently stated that Mr. A serious attack on the British
to foot the bill, which, in the case representative. of a proposed 300-in. reflector, has
McAfee, an American millionaire, had promised to finance the pro-
A strict comparison of the results ject, but astronomers are mostly obtained can be made only on the sceptical as to its practicability. basis of equal mil
At a mile-
heavy summer floods have made it
construction work on the south impossible to finish the bridge over the Hitão Ho This has delayed side of the river
workmen are now engaged in throwing a temporary wooden bridge across the stream. Judging
by the present rate of progress, it will not be long until trains are crossing the Hsiao Ho.
Tickets will soon be on sale, if one is to believe the man on the street! But it hardly seems pos sible that the line can be opened as far as Taiku before next autumn at the earliest.
This stretch of road forms part
Tatungtu, on the Suiyuan line to of the long-projected railway from
Chengtu, Szechuen. It is metre Over 2000 of these demonstragauge, like the Cheng-Tal, and uses the same weight of rail, thus greatly facilitating through trafic. The Shanal Government is build- ing a much lighter rafway from Tutze to Talku and on to the south-west. These two lines do not exactly parallel each other between the two cities. Instead, they form an ellipse the provincial railway running a bit to the north, through Hsukouhalen and the Government railway keeping to the south, through Tungyangchen. It remains to be seen which line reaches Talku arst. As no rails have yet been laid on the provin- cial line, the odds seem to lie with the Government rallway,
During the average lamp-life of 1000 hours this means that a few pence saved on a cheap lamp means a loss of perhaps as much as de in extra current.
!
market is being made by foreign lamp manufacturers During the first sight months of this year clec- tric bulbs, complete and ready for use, came into the country at the to wear Many problems the solution of rate of millions a manth. alloy cast which astronomers had long sought rdinary cast have been solved by the ald of for cylinder the Mount Wilson - 100-là. tele- liners was, as, 21 and compared scope, the most notable, being the with "chromium alloy cast iron bas aize of the distant stars, the dia-
4 milesys of 140,000 the † meters at which have been mea- ! hitr
ened toured with this giant refactor and
age of 30,000 the
of nitrogen-bar
iron compareu
iron as used, norma
gatio
chromium alloy cast mained the same at: results refer to testa
stationary engine
| teste, whilst the wear value [ner (0.001-ing of wear, was in magnitude, at a mileage the ratio of
debed
gure in close
the stati
of from
leso. "It has also reso but in into separate stars
road Junction
les some of
er detected - hurtlin
5,000 a.speeds of many
dened
to
miles a second
Favín the hupian
1,500,000,000
with fr
estim
000
any nebaise
Cantieri Riuniti Dell'Adriatico
TRIESTE MONFALCONE
Shipbuilders, forgo masters electrical engineers, makers of the most up to date types of aeroplanes
and seaplanes.
enders and desidus submitted on renu
GENERAL AGENCY FOR HONG KONG AND SOUTH CHINA
SPRINCE ABD