Page
THE EXPRESS LIFT CO., LTD.
WITH WHICH IS INCORPORATED THE BUSINESS, OF
SMITH, MAJOR & STEVENS, LTD.
EXPRESS SMS
LETS
, ו
MODERN LIFTS
FOR MODERN BUILDINGS
SPEEDY RELIABLE
SERVICE
FOR DETAILS APPLY TO
THE G.E.C., QUEEN'S BUILDING, CHATER ROAD.
EVERYTHING&E.C
*SPECIFY
ELECTRICAL
Berger Paints Varnishes &
Enamala Distempera• Lacquara
1760
HONG KONG DAILY PRESS, SATURDAY, APRIL 23, 1932
ENGINEERING AND BUILDING
CELLULAR
CONCRETE.
NOVEL METHOD OF MIXING.
CORROSION FROM SEA-WATER.
BEST METHOD OF PROTECTING SHIPS.
NEW GERMAN SYSTEM,.......
DESCRIBED.
?
INSULATION ON JAPANESE LINERS.
AMERICAN SYSTEM.. PROVES SUCCESSFUL.
DIESEL ENGINE PHILIPPINES
Isary the installation of a second in
1988.
This time
cylinder,
two
Worthington
Diesel engine was selected. The new PROVE SOLUTION TO MANY unit also is direct connected to A
PROBLEMS
NINE COMMUNITIES SUPPLIED WITH LIGHT AND POWER
Dagupan,
approximately.
"The nine now motorabips recently miles northwest of Manila, has built in Japan and added to the population of about 40,000 and is Nippan Yusen Kaisha feet are the principal city of the Philippino splendid examples of modern, eff-
+
1
three-phase 60 aycle 3,300 vold Westinghouse generator and ax- efter: The peak load on both engines, now is 110 kw the original unit operating on day-load servisą
To furnish cooling water for, the
motor driven centrifugal pump and engines, a direct connected electric
horizontal duplex power pomp. motor driven through geara,
gears, ave bron installed. Both of those units
are of Worthington manufacturo.
A novel method of making pre- cast concreta blocks of differing weights and strengths in by adding form to the mixture, which is then The strongly corrosive proporties cisn naval architecture and marine province of Pangasinan, on the poured into the moulds in the usual of water are of course well engineering. The largest and the island of Luzon. One of the largest
known especially as regards iron best known of these ships are the rice-growing districta, this provine way. No aggregate is used for the and steel, and in this connection three beautiful passenger liners purpose, the mixture boing sand incat important contribution by Chichi Maru, Tatsuta Maru, and
also produces great quantities of
Three communities outside of cemont, and water,
Oberingerieur Andrene of the well
Asama Mary of the Orient Cali-sugar, corn and copra Salt also Dagupan also are furathed with known Gorman shipbuilding, frm of
fornia Line,
ie an important commodity, being light and power from this plant. Blohm and Yoss (Hamburg) has res
Four of the nine ships are pow-manufactured in the saline maralien Linck now are being built to reach, cantly appeased in the German poored with Burmeister and Wain throughout the province. Primari Ave, other towns, thus making the por Korrosion und Metallschutz" (Berlin). There is given on the Diesels, and five with Sulzer Diely a trading contre for this rich city an important power centra
Bole.
district, Dagupan boasts a number most elaborate lines the results of
The insulation of a Diesel os of manufacturing, establishments, the extensive practical experience hauet, line calls for
amaterial To furnish the city with electric which has all the attributes of light and power, the Dagupan, Light steel in connection with ships. Also good pipe covering, in addition to and Power Company, a subsidiary much attention is devoted to the the ability to withstand the in of the Manila Electric Company, in deterioration of condenser tubes, tense heat generated. It must be December, 1928, installed the first propellers, and other equipment
Worthington Diesel engine in the made of the most resistant material
Philippines. This was a 100 hp, two cylinder, two-cycle unit direct connected to a 90 kvm, three-phase, 60-dyelo, 2,300-yolt Westinghouse generator and exciter. The maxi A Major Problem,
The NY K. angineers ordered, mum load on this engine was 30trol gear and sub-station equip Naturally corrosion has been one through the Chitose Trading Co,,, of kilowatts:
ment This first consignment weighs of the major problem of the ship- Tokyo, who represent ... Johna-Man- Steadily increasing demands för 1,389 tons and is being given builder ever since iron and steel ville in Japan, the necessary J-Mpower soon overtaxed the Facilities through transit to Hungary, this the cell concrete was a perfecth were substituted for wood, but as Superex Block, sponge felted sheets of the first engine and mnde neces-nyaiding intermédiate handling.
The materials are blended in a concrete mixer with specially con-") structed blades, and the foaming mixture is prepared in a separate vessel, from which it is blown by compressed air, through a hose or pipe; into the conarets mixer. By varying the amount of foam weight per cubic fout of concrete in be increased or decreased, and to show the limits that can bo arris
the
او
ved at blocks have been, mado which vary from 18lb peri su.ft. to 881b
per cu. ft The latter, by the way, has" strength of 813lb by the end of twenty-eight days."
Fire-resisting tests showed that
safe material and after being ox- posed to fire for a lengthy period and then pooled by cold water from a hose, it did not crack or buckle. It has also been found to be an excellent protective material for metal work that has to be put under ground as it is not porous.
The cells are each separate, consisting of a coal of cement round
riali
FOR YOUR CAR
of the above firm in struggling to provent the corrosion of iron and
that can be found, such as man ganese bronze, gunmetal and high chromium content, steels."
immune to vibration, it must be highly efficient with the minimum of thickness, and it must be proof against calcination.
American Order..
the author of the contribution and 450 and 302 cement to insulate
points out, serious general corro- the main engine exhausts on seven sion of the hull is now rare because of the nine strips and the auxiliary effective protection by painting at engine exhausts on six. On every regular intervals is carried out. one of the nine ships some. J.M. in- Thus we are informed that in the sulation is playing D year 1980, the firm of Blohm and part: The 302 cement is used as a Voss, used 200,000 kiloa (440,800 lbs. finish over the Superex Blocks, and (or 1941 tona) of paint, nearly all the 450 cement is used on the ex
Red Lead, while also a good mohaust silencers: J-M sponge felted
ง
ELECTRICAL APPARATUS FOR HUNGARY.
On the 8th October the Metro despatched from Trafford. Park. politan.Vickers Electrical Company Manchester, the first consignment.
of electrical apparatus destined for the Hungarian State Railways. The total value of the contract is about 2000,000 and includes motors, con-
important Use Green Island Cement
RAILWAY EQUIPMENT FOR
OHINA
a bubble of air, and there are fromthod of protection is galvanising shoets is used over the Superex one to two hundred millions of these and in connection also there Blouk in cartain places.
There are hundreds of instances of sells in cubic foot of the mate was stilised 85,000 kilos (187,340
lbs. or a tons) of zinc.
Johns Manvillo insulation on Dieselt This is a striking corroboration engine exhaust and auxiliary lines of the value of Red Lend paint in both afloat and pahore, but the N. protecting iron and steel against Y. E. installation, wherein J-M in- corrosion, a fact, however, that has sulation is used on every one of been known for well over 100 years, nine was ships, is one of which that
Also modern paint of this charac-firm is particularly proud. ter as extensively used not only for shipbuilding and in docks and harbours, but for structural steel work of overy description, includ;; ing for exemple lighthouses, oil tanka, cranes, water tanka pithead
The Westinghouse Brake and gear, gasholders and chemical plant Saxby Signal Co., Ltd, London,. of all kinds, is now generally also have been awarded a contract by of the non-setting variety, so that the Chinese Government Purchasing it can be made nud supplied in Commission for the supply of brakef bulk without difficulty. For such sets for 00 wagons ordered from the paint Red Load is manufactured by Metropolitan-Cammell, Carriage. controlling with great accuracy the Wagon and Finance Co., Ltd., and oxidation of the molten lead with the Consolidated Brake and Engine.. aiz, first at about 645 F. to the yal-ering Co., Ltd., Slough, contract lowish lead monoxide and then at for the supply of air brake equip hot over 1000 F. to Red Lend (tri- ment for 80 bogie wagons which are · plumbic tetroxide). In this way being built by Hurst, Nelson and nonsetting Hed Lead, according to Co., Ltd., Motherwell.
Proxcelin
THE CELLULOSE FINISH
Agents -W. R. LOXLEY & CO.
11.Atkinson
Copyright
| Members of the CIMA..
COMPLETE ELECTRICAL INSTALLATIONS
Toith
C. M. A. CABLES.
Advice and Estimates given 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 KONG.
the latest British Engineering Stan-
dards Specifications, has a total
Handling Coal at. Dover,'.
of over 93 per cent actual plumbie A publication issued by the Dover tetroxide, and 90.5 per cent. oxides Harbour Board calls attention to of lend, that it not more than about the coal trandling plant which has 6 per cent.: free lead inonoxide, ex-been established on the Eastern Coss of which was previously the Art in connection with the deve emise of the trouble of setting withlopment of the East Kent Coal- linsodd oil, constituting the basis of folds. At the present time there the paint.
Corrosion Can Be Prevented..
*are four collieries working in Kent: Tilmanstong, Bettesbanger, Snow- down and Chiplet, "esch of which is
On these lines most of the corro. connected with Dover by the rail
way system. Tilmanstone also being tion of iron and steel can be prest vented, and there are hundreds of connected by an aerial ropeway, steel structures, still in perfect con- The 5,000-ton bunker occupied by dition to day after 40-50 years' ex- Tilmanstone (Kent) Collieries, Ltd., posure to sea-water, owing to the which is connected with the serial. efficient use of Red Lead paint. It ropeway, mentioned, can be weighed is, in fact, a curious state of affairs and loaded into ships: by means of Fin shipbuilding, that corrosion at conveyors and a telescopic shoot: the pipsont-time coust, more-an-, nominally at the rate of 300 tom- xiety in regard to the deteriora per hour, but in actual practice 750 tion of highly resistant metals, tons per hour,“ such as used for condenser tubes
and propellers than is the case with
the much more easily corrodible part played by water in motion as iron and stool. Also the paper only against still water. Thus the serves to emphasis t
bronze propellors of high speed ver
that we have still much to learn on the whole subject of the
sals are badly Affected whereas little
troublé "opouza, with those running
causes of corrosion, particularly for example, the exact at slow speeds, the reason being
Continued at fe d ́of next tukumam) unknown.
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 inely 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 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 constant and accurate supervision will yield the 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
FLOOR,
EXCHANGE BUILDING.