Page
THE EXPRESS LIFT CO., LTD.
WITH "WHICH IS INCORPORATED THE BUSINESS OP.
SMITH, MAJOR & STEVENS, LTD,
EXPRESS SMS
LIFTS
MODERN LIFTS
FOR
MODERN BUILDINGS
SPEEDY RELIABLE SERVICE
FOR DETAILS APPLY TO
THE G.E.C., QUEEN'S BUILDING, CHATER ROAD.
EVERYTHING
g.&.c
Az
Exclusive Licens
ELECTRICAL
Specify
HONG KONG DAILY PRESS SATURDAY, MAY 28, 1932.
ENGINEERING AND BUILDING
SOME IMPORTANT BUILDING RESEARCH BUILDING WITH PRE-
CONTRACTS.
SECURED BY BRITISH FIRMS
Train Ferry Steamer for China,
Mesars, Swan, Hunter and Wig ham-Richardson, Ltd, Wallsend, hays obtained an order for a train:
Ierry steamer for service between Nanking and Pakow China,
British Coal' Sales,
Broadcasting. Station for Portugal.
BOARD.
Bulphur Gases
FORMED CONCRETE
and
making of alabs, fonding pos concrete alcopare at a site on railway land at Exmouth Junction, a mile or so to the cast of Exeter. Starting in a small way these works aro
among the
now
most important of their kind in the country, and probably turn out a greater variety of fabricated pro- ducts than any other works in the
A Neat Hut.
CLEANING PIPE
LINES
A NEW CONTRIVANCE
For water supply more and more. use is now
"being made of steel
mains, lined inside with about “ The report of the Building Re-USE BY HOME RAILWAY, British Isles.
of bitumen, forming a completely search Board, for the year 1930,
smooth surface, quite different to which was recently published is
anet fron pipes which are given). When reinforced concrete, in the. reveáin steady progrons in all phases of the work of the Board. modern souse, was being developed and such materials, 6 ft. 4 in. by ping in a bitumen bath. These A neat, but for holding oil, tools, superficial coating by merely dips Research work is continually ex by the Fonte et Chaussecs depart ft." in, in plan, is made up lined steel pipes are not subject to tending. Co-operative researchmont and schools of the French of three special walling slabs, incrustation, like ordinary cast work is in progress on cast concreto Government, it was generally in thick, a grooved, cast, one iron or steel pipes, but a finely products and on greystone lime. thought that its main use would piece rectangular gill bass and a divided slime or mud is often de These "investigations were initiated be for bridges, buildings, conduits, cast roof-section. The roof is rein- posited from the water. In the The Swedish State railways have at the request of the Cast Concrete &c., cast in sift, but it was soon forced with mesh fabric or expand-case of cast iron, however, whether placed orders for: 30,000 tons of
Products Association, and the Grey found that much could also be done ed metal. Countersunk holes are having a thin coat of bitumen by. stone Lime Burners Association, in the direction of the making of let into the front edges of the side dipping or not, the water attacks Northumberland steam coal, 10,000) tons of Durham coal, and 23,000 respectively. Collaboration with numerous itoma useful in civil on-sectious, and jambs for double the metal and forms nodules of tons of Scottish coal. Delivery is the Institution of Heating and ginebring and building on the re-doors are fixed on each side with extremely hard incrustation, "hav-
Ventilating Engineers is also belas petition system in a factory. being made during the next three ¦ developed.
the aid of brass acrowa: A concrete ing high iron. "content, which The remarkable extension which lintel goes over the doors. The sill eventually forms a hard deep layer" months.
has taken place in the application is placed on the ground, the thres all round the pigu. In connection with, chemical at of this type of construction in reelaba are dropped into place and For dealing with such hard in The Portuguese Government has tack on building materials, the de- cent years, is certainly partly to the rouf fits on the three slabs. The crustation Glanbeld and Kennedy decided to accept the tender of gree of attack of sulphur gases be attributed to the growing cost grooves in the base oil and the. Standard Telephones and Cables, upon limestone was found to be of brickwork, which has in the roof framing keep the whole to
Lod
of Kilmarnock (Scotland) affected by the conditions of con-
have available mechanical pipe Ltd., for the construction of a ducting the test. It has been found main boon due to higher labour gether, so that it can be erected broadcasting station at Barcarena, that the relativo attack bears costs and labour, demarontion prae- rapidly, and as
cleaning equipment, and their ex- no grouting is near Lisbon. The contract includes close relation to the observed wen- tices in the industry. It is common used, can be easily taken down and perience in this business goes back
thering properties when conditions the provision of material for the in- are such that consideration, conden-economic experience that when any shipped to another position, if fo-; over 65 years. This standard Glon stallation of a studio at the Sansation can occur; hence it has been type of organisation attempts to quired.
field apparatus for such conditions. Carlos Theatre in Lisbon. It is necessary to investigate the con- obtain more than a fair remunera-
is an articulated scraping devics, For railway purposes, buildings densation of moisture under con- stated that the sum involved trolled conditions. The results so tion for its output, the user will are frequently required for tem generally consisting of three parts £21,000,
far seem to show that the rate of turn to the investigation of alter-porary draughtsmen's offices, store conacted by
jointa, *Airdraft for Brazilian Mavy. accumulation of moisture by native methods of meeting his re-rooms, ticket offices for halts, shel- which is placed in the pipe, either
panted condensations varies with The De Havilland Aireraft Co. different types of limestone. The quirements.
ters, lamp rooms, fogmen's huts, states that it has secured an order weathering of building stones is so
The growing use of pre-formed yatekeeper's shelters, ecal huts, and for the supply to the Brazilian Navyaigely due to acid sulphur gusts concrets parts cannot be attributed so on, Briak structures are expen
The first part of the apparatus k af 12 machines..
in the atmosphors that this work in
a piston or dise of cast iron, with" of vital importance. Matters are wholly to the cost of brickwork, as sive, wooden structures will not Coal for Danmark,
likely to be improved in this direc- such parts have qualifications in stand much moving, and require segmented leather at the edges, The Danish State Railways have tien by recent work on the elimina many directions which brickwork painting, and concrete buildings which just fits the pipe more or placed orders in the United Kingtion of sulphur gases from power-
Jess water-tight, mostly two pistons doin for approximately! 200,000 tons station fumes, but there remains to cannot claim, bat the cost of brick built with shuttering are also ex- of coal. Delivery is to be made the effects of what may be regard-hita factor in the development of tion, a system of slab and pillar
be considered the counteracting of work has none the less been a defi pensive. To deal with this situa-ing used, one behind the other. during the period April to October..
In front the other parts are two These orders represent an increase ed as the normal atmosphere of a
town in the proportion of the State
portable hutting, on the lines of the separate sets of heavy scrapers formed of strong steel blades, four Railway's coal requiremente sup-
In Great Britain for many years hut just referred to, has been deve plied by the United Kingdom.
For more in number, which at the past artificial stond has been used loped-Engineering.. for paving slabs and blocks, while
cutting edges presa hard up againet the heavy cost of the upkeep of
the inner portion of the pipe. The scale is "first cleaned out by hand sufficient to allow the apparatus to be inserted, after which the pipa line is closed again" and the full water pressure turned on. forces the piston with the cutters This
through the pipe, scraping out the scale which is discharged at an
is
Electric Plant for Persia. The Kazvil Municipality has placed an order with the Mesopo- tamin Persia Corporation, Ltd., for electrical plant of Messrs. Ruston & Hornsby's manufacture for the Kazvin town lighting
Berger Points & Varnishes &
· Distumpers - Lacquera
1760
FOR YOUR FURNITURE
ROCKGLOSS WHITE ENAMEL
Agents -WR. LOXLEY & CO.
COMPLETE ELECTRICAL INSTALLATIONS
with
C. M. A. CABLES.
Advice and Estimates given free on all types of
Washing Stonework,
this new industry.
Washing stonework is stated to be a very useful means of preventing decay When regular washing, started early in the life of a build wood fences has encouraged the extensive tests in one of the 143 ing, resorted to, by means of fire making of concrete fence posts, and diameter bitumen lined steel mains hoses, the results are good. When the high cost of quarrying for sized of the Ayr Corporation. vardirty the team, cleaning pro-
The general principle is the same
ees is recommended for stone blocks and of machining has led buildings Fine sprays always prove to the making of concrete curbs. A as before, but the heavy steel cut maxe effective in cleaning than further example in which the deveters are replaced by special brushes solid jeta of water and incidentally
.universal
through a hatch box or by taking
out one length of the pipe.
have the advantage that the enstlopment of this class of work may having whalebone bristles which of the water used is lower. In defnitely be related to the cost of weep out all the soft slime without other part of the line, having an some cases with Portland stone, brickwork is in the case of egg-injuring the bitumen lining. This, brown colorisations appear on wash- ing, which can be removed by fur shaped sewers, which have the ad-brush is made up of two separate open hatch box or length taken out, ther washing, A most important vantage that they can be manufac-rigidly connected together and At 50-100 miles in length, is gradually sections, one behind the other, In this way the whole circuit, even matter in regard to the cleaning buildings is that no caustic alkali tared in the shop in sections, and ting into the pipe fairly tightly cleaned out, forcing the apparatus can then be taken to site and joined Also the propelling portion of the up cheaply and rapidly.
or other deleterious chemical should be used.
Decay of Portland Stons Buildings.
arrangement consists of two mild through one section after another steel pistons with leather rings or in turn, standard pressure scrapers gments, but in this case slightly of this character being 8"-20" dia- leas in diameter than the pipe so
Railway Experiments.
Before the war, Mr. A. W.
that an appreciable proportion of mater and modified according t the water driving the apparatus circumstances. Recently, attention has been Salumper, C.B. E., M.Fast.C.E., through the pipe line lecks past the drawn to a number of cases of chief engineer of the then London
The firm bave now also intro- unusually rapid decay of Portland and South Western Railway, found prevent damage to the bitumen lin- cleaner specially designed for the
stone
in newly-erected buildings.
In each case the decay was found there were large quantities of to be due to the presence of chio granite chippings available at the rides, probably following exposure Meidon quarry near Oakhampton to sex water. This conclusion e
pistons and aluices out the loosened duced a new patented design of
deposit ahead of the brush. To
ing the pistees are supported in the conditions of bitumen lined steel pipe by a series of small projecting pipes liable to the deposition of 4" Musta metal axles, carried by evolved in conjunction with Mr. vulcanite rollers revolving on slime or mud. The cleaner, has been"
contrary to experience with such in Devon, from which much of the spring steel arma bolted to the James Peebles, Superintendent of buildings as Rufus Castle on the ballast of the railway was, and is framework, and in this manner the Ayr Waterworks, (Beotiand) coast of the Isle of Portland, which still, supplied, and he conceived" miles of bitumen lined pipes can be and perfected as the result of must, in the course of centuries, the idea of creating works for the leaned out rapidly and efficiently.. (Continuat on previous column) have absorbed a' certain amount of chloride. It is accordingly suggest ed that decay is only caused by sea suite when in a polluted atmos- phere. The subject is under experi mental investigation. One marked source of failure of stone is shown by the development of efflorescenceя of soluble salts on the faces. These salts, besides being unsightly; cause considerable damage. In a number of cases the origin of the sults causing the action was found in the brick backing.
Cement affords the experimenter an extensive field of investigation. A special furnaces, as well as other "equipment, has been installed at the Building Research Station for- the purposes of investigating many matters connected with the prepara.. tion of cement, its subsequent treatment and its application, Much of this work has just been started but some deductions are possible from the preliminary In vestigations. In the case of some rapid-hardening cements stored in sealed vesasia the amount of
LIGHTING & POWER INSTALLATION calcium hydroxida present changes
-by
"experienced
ELECTRICAL ENGINEER
retained at our Hong Kong BranchTM
The General Electric Co. (of China), Ltd.
"QUEEN'S BUILDINGS,
HỒNG XUNG
markedly with the time of storage, while no qual change was tonio | with other rements of the normal or rapid-hardening type. In the chees in which this change occurred, the initial value was high but, after storage become mors normal. Some spontaneous change in suspected and is being investigated. Work if also being undertaken to elucidato the reactions which take place in cement-clinker during aeration, Laboratory studies are also in pro- "gress on the resistance of Portland, cements to sulphate solutions. Already large differsones, in results have bort found with ceumats || baving - Yéry similar, physical and mechanical properties.Engineeri
For Constructural Work of Every
Description
Use Green Island Cement
WHERE GREEN ISLAND CEMENT IS MADE
A GENERAL VIEW OF THE GREEN ISLAND CEMENT WORKS TAKEN FROM THE SEA.
Issued by the
GREEN ISLAND CEMENT CO., LTD.
21D. ELOOR ANGE BUILDING