1935-11-02 — Page 2

Page

41

TESTING WATER NEW MOULDING

MAINS

Portable Set

An automatic pumping set for the testing of water mains is made by Williams and James, Chequers Bridge. Gloucester. The apparatus ls, known D.S

the"

** Hydraulux" mins-testing plant. The extension of built-up areas with the atten- dant additiona water mains often necessita es Increased *pressure in such mains whilst new lengths are subject to damage from ground settlement, &c. The mainstesting. ulant has been developed to meet the growing practice of testing the Inains on the site. The set is mounted on a hand-barrow so as to be readily portable. The pump is of the twineylinder horizontal type with phosphor-bronze plung÷ ers working in gunmetal guides and glands. The plungers are driven by geared eccentrics run- ning in an oil bath from which all working parts are lubricated. The shaft on which the eccentrics are mounted is driven by chain from a 1 hp. Villers air-cooled petrol engine with a self-contained" fy- wheel magneto. The pump is fit- ted with a receiver provided with a relief valve and pressure gauge and carrying the engine fuel tank" The pump discharge is connected to the main at its lowest point. The suction pipe draws from a tem- porary tank, it being understood that the main is already full of water and the function of the testing set is only to supply the pressure and to`make up for any leakage. On starting the engine, the pressure in the main rises rapidly and is maintained automa- tically, by means of a loaded by. pass valve, at the predetermined test pressure for such period as may be necessary for making a "thorough. Inspection. The set 18.

capable of testing mains at any pressure up to 300 lb. per square inch-

THE LINDER STRESS FINDER

The Linder stress Ander, which provides a simple, convenient and rapid means of checking the load capacity of derricks, consists of two arms, one of which is graduat- ed, pivoted to a disc on which u circular scale is engraved. In use, the Instrument is held at such a distance from the eye that the mast-head span block Is sighted through a hole in the centre of the dise wille the pointed end of the ungraduated arm coincides with the derrick heel. The graduated arm is then turned so that it les parallel with the rope between the mast-head span block and the der- rick-head span connection. The loads on these can then be deter- mined from the readings of the circular and linear scales, respec- tively. The results are Correct with a single purchase, but for n multiple purchase a simple cor- rection must be applied. The in- strument should be very useful to ships' officers and those who have to assign safe working loads to derricks. It can be used with a drawing when sighting is not possible.-

1

FIREBAR FOR SMALL BOILERS

A rebar, suitable for small vertical bollers, locomotive bollers and sectional heating bollers, which, it is claimed, will enable thermal efficiency of 80 per cent, to be obtained with so.id fuel, by a more effective distribu-. tion of air to the tue is made by the Turbine Furnace Company Limited London. The bars are cast in groups having three air spaces. resemble a longitudinal section of a Venturi tube.

The individual bars of a group are connected at short intervals by webs of triangular cross- section, These "webs do not ex- tend to either the top or bottom bf the bar and are staggered re- Jative.y to one another In succes- sive alr spaces, that is, there are rot lines of dead space across the great. The grate is

used with fan or steam-jet draught fitted that with automatic control, so when a predetermined pressure or temperature is reached the air Eupply is Automaticaly cut off, to be re-established on the converse conditions obtaining. This ar- rangement permits of fring·at irregular intervals constant temperature

steady

sures

a

pressure or still be maintained. can

The new bar keeps the fuel from en- tering the air spaces and so en- free passage of the air, whilst, owing to the humidity provided in the air supply, clin- ker does not adhere to the bars. The equipment is known as 'the *Turven" system.

MACHINE

Easy Operation.

The "Hartung" moulding ma- chine is operated by compressed air at a pressure of from 80 lb. to 90 lb. per square inch and first jolts the moulding box. then squeezes the sand and, on the downward stroke of the table, draws the pattern from the, box. It w accommodate boxes up to is in. by 20 in. or 20 in.in diamter, and up to 8 in. deep. The squeezing eynder is 11 in. in diameter with a stroke of 63 Ihr and the jolt cyllṛder is 41 in. in diameter. The machine can be operated "by one man and "the procedure Is as follows: The sand is placed in the moulding box, and the table is jolted. The head is then swing into poistion and squeezing is started, the vibrator being automatically start-" ed, at the same time by the movement of the head.

The pedal is next depressed to raise the pattern-drawing-frame. the action being effected pneuma- tically. On

released air being

from the squeezing cylinder, the sable descends, the mou'ding box 'coming into contact with the stripping pins and then stopping. The pattern plate continues to descend ond the pattern is with- drawn from the mould. On swinging the head out of the way, the vibrator automatically stops. On the removal of the finished mould the peda; is again depress- ed. which action restores the ma- chine to the starting condition. The jolting, squeezing and draw- ing motors are controlled by a single rotary valve. Adequate protection of the working parts against sand and d.rt is provided. The stripping pins are adjustable on the frame and may be quickly set for boxes of different sizes. The stripping frume is rigidly held against permanent stops whlist the pattern is being drawn and defective draws are thus pre- vented. The machine is lubricat- ed by all Introduced by an in- jector application of compressed air. The machine is made on the Interchangeable system.

STATE GRANT

For Highland Road

¡Special Air Mail Service)

London, Oct. 10. The Ministry of Transport an- nounce that Mr. Hore-Belishu, Minister of "Transport, has agreed to make a grant from the Road Fund towards the cost of a scheme submitted by Dumbarton County Counet for providing a second carriageway on part of the Glas- gow-Dumbarton-Inverness road

Separate carriageways for traffic going in opposite directions are already provided on the greater part of the new western exit from Glasgow known as the Boulevard. and it is now proposed to extend this dual carriageway system from the end of the Boulevard at Dunglass to the railway bridge at- Dumbuck.

The cost is estimated at £33.200, and the work, which will be started shortly, is expected to accupy about 15 months. Some idea of the extent of the work may be formed from the fact that it in- volves the excavation of 22,000 cubic yards and the filing in of. 51.000 cubic yards.

This length of road cerries a heavy, volume of 'bus, tram, and tourist traffic. It is a bottlenecked section, having an over-all width of 32 feet and a single carriageway with an average width of 20 feet.

The old carriageway will be widened to 24 feet, and the new one will be constructed to similar dimensions. They will be separat- ed by a grass verge, and a new footpath 10 feet wide will be pro- vided alongside the new carriage- Why. The average width of the road between fences will be 70 teet.

HONG KONG DAILY PRESS, SATURDAY, NOVEMBER 2, 1935.

ENGINEERING AND BUILDING

SUBSIDISED SHIPPING

COMPETITION

ነ

Hon. Alexander Shaw Speaks

It is generally known that the Mr. Show said that he could see British mercantlie fleet has lost no prospect of the Matson Line ground in recent years as com- participating in a conference with "pared with those of some other n view to foregoing their subsidis- powers. The extent of the loss is, ed competition. They had been however. perhaps not always more than once approached on the realised. Speaking at a dinner subject with negative results, and held on board the new P. and O. they were quite entitled to take liner Strathmore, nt Liverpool, en advantage of the favourable con- the 13th inst., the Hon. Alexander ditions which had been created Shaw, the Chairman of the P. and for them. Later messages have O... Company, stated that whereas confirmed that the projected con- before the war Great Britain own- ference is "to be proceeded with ed about 40 per cent. of the world's and it may be hoped that it will tonnage, she

possessed lesa have some result, but it seems than 27 per cent, and that her likely that something more than tonnage had sunk actually as well goodwill on the part of the Matson as relatively. This fall is, in the Line will be necessary to place main, to be explained by the com- British shipping in the position petition of foreign shipping work which is properly its own. ing on a subsidised basis. år under conditions biased in its favour by 'governmental restrictions. and which, if it were obliged to main-

now

RAY OF HOPE

QUARRIES AND MINES

Health And Safety

Of Workers

The annual reports for 1933 of H.M. Inspectors under the Quar- ries Act. 1894 and the Metall- ferous Mines Regulation Acts, 1872 and 1875, have rather be- latedly been issued by the Sta- tionery Office. The primary sub- ject of these reports is the health and safety of the workers eng- aged in these industries, but some useful statistical information is also given.

The first of the Acts just quot- ed relates to quarries more than 20 ft deep, the output from which during 1933 was a record of 87,- 500,000 tons. This Ls 7,000,000 tons more than in 1932, and is ascribed to the improvement in the iron and steel and building and aled trades. It was 21,000.- 000 tons more than in 1913. The number of quarries working, on the other hand, was 5.100 in 1933, as against 5.154 the year before. Reports from the Northern and Yorkshire Divisions refer to the Increasing use of mechanical ap- pliances and to a preference for electrical, and “oll-driven over steam plant. Actually the horse-.. power of electric motors in use increased from 97,000 h.p. in 1930 to 122,000 h.p. In 1933, and was

A ray of hope, although perhaps not a very bright one, may be found in the signs of uneasiness in Diore than one foreign country with a policy of loading the debit side of an unbalanced budget with heavy shipping subsidies. situation could also clearly be met by instituting British subsidies probably two or threefold what it. Although these are contrary to our policy and traditions, we could afford them better than most peo-

are the ple who

tain 3 straight-forward trading competition with British ships, would certainly disappear from the seas. Mr. Shaw particularly re ferred to the position in the Pact- fic and mentioned the service be- tween New Zealand. Australia, and San Francisco, and that between Canada across the Pache to Aus- tralia and New Zealand. He stated that the British ships on former of these two runs would be withdrawn within the next few months if present conditions con- tinued, while on the latter, heavy Isses were being incurred and that a new building programme was rendered impossible.

SITUATION

The unsatisfactory situation on the Australia-New Zealand run is mure especially due to the opera- tions of the United States subsidie ed. Matson Line, and by a cotn, cidence a message from Canberra was published in "The Times,” on the same day that Mr. Shaw spoke, stating that the Australian and New Zealand Governments were arranging a conference with re- presentatives of the Matson Line to be held in London, to discuss the question. In a later interview,

THE GOVERNMENT LABORATORY!

A most valuable institution and one that has been of considerable service to the country is the Gov- ernment Laboratory, and the re- part by the Government Chemist on the work of the Laboratory for the year ended the 31st of March was recently issued. The total number of samples examined in the course of the year was 522,788. an increase of 19.196 over the number for the previous year, the largest increase being in samples of tobacco, of which 97.255 were examined.,

The examination of samples of sep-water was another branch of the work of the laboratory, whose aid was sought in connection with 2 scheme of oceanic research. This scheme included the deter- mination of the different degrees of salinity in the North Sea and in the Atlantic Ocean, and the efforts of the laboratory in this connection gave most interesting results. The Laboratory was also of considerable help to the police authorities during the year: Al- together eighty-two samples were submitted for its inspection in connection with inquiries in the Police Courts. The total number of samples received from the Post Office

was 2,979, and systematic examinations were conducted for purpose of determining the quality of and any deleterious sub- stances in the paper, pigments, and gum used in the manufacture of stamps,

post cards and em- TYNESIDE DEVELOPMENTS bossed envelopes. The Board of Inland Revenue and the British Museum were also contributors of samples in connection with the suspected fraudulent use of stamps and the forgery of documents,

'the

In October, work will begin on South Shields Corporation's river- side. development scheme, states the Tyneside Industrial Develop- ment Board. There will be two ycars' work clearing slum sites, constructing new quay, and pro- Messrs, North-Eastern Plers, Ltd. viding rail and road communica- a newly registered company-will tions. The site has a 2,500-ft. shortly apply to Parliament for river "frontage and will be" avail- powers to construct a pleasure -able-for-new Industries. It is also-pler at Whitley Bay, the popular announced by the Tyneside Indus- North-East Coast resort, costing 'trial Development Board that upwards of £200,000.

The

now indulging in them, and they might do much to" reduce unemployment in the ship- building industry. As a matter of practice, however, it is not likely that any British subsidy would ap- proach in extent what is common clsewhere. Finally, we have 4 strong and; in fact, invincible weapon in the geographical con- stitution of the British Empire, if we as an Empire care to use it. It is regrettable to have to talk about weapons in commercial competi· · tion with a friendly nation, bul when the coastal trade of one of our rivals on the sea is held to cover ports more than 2,000 miles away from its coasts, it is neces- sary to consider, at least the bar- gaining power, of a definition of coastal trade which would include the whole of the British Empire.-

RECENT CONTRACTS

Messrs. Kenulcott Water Softe- ner Company, Limited, Wolver hampton, have now in hand the construction of a water-softening. plant For the town supply of. Wallasey Corporation. The capa- city of the installation is approxi mately '500,000 gallons a day and It is to be completed in about two months time.

Messrs. The Trussed Concreti Steel Company, Limited, Thames House, Millbank. Londen, S.W.1.. are acting as the reinforced- concrete engineers in connection with the construction of schools. shopt and flats, and other bulid- ings in various parts cf Great Britain. In the case of a number of other bu:'dings they are sup- plying the Truscon and Truscon precast floors.

Messrs. Marconi's Wireless Tele- graph Company, Limited, Electra House, Victoria-embankment, Lon- don, W.C.2, and Messrs. Standard Telephones and Cables, Limited, Connaught House, Aldwych, Lon don, W.C.2. have each received an order from The British Broad- casting Corporation. Broadcasting House,

was in 1924.

METALLIFEROUS MINES

As regards metallferous mines, the tonnage raised in 1933 was generally greater than in 1932. The most marked increases were from 612,651 tons to 738,856 tons In the case of iron ore, from 40,- 632 tons to 49,056 tons in the case of lead ore, and from 1699. tons to 1.45 tons in the case of tin are. The output of limestone increased from 199.316 tons to 215.591 tons. and of silles from 11.588 tons to 15,028 tons. The number of persons killed during the year was 11, while 31 suffered "serious personal injury," these figures being slightly lower than In 1932 The death rate below ground was two per 1.000 persons employed, which is higher than that. 1.21. fer mines under the Coal Mines Act. even though workers at metalliferous mines were more or less immune from some of the risks of coal mining. Thus over the period 1923-32 the annual death rate from accidents below ground at metalliferpus mines was 1.72 per 1.000 persons employed, wale at coal mines it! | was 1,2 Two of the fatalities were due to an explosion of fre- damp in a lead mine, while two others were caused by falls of ground The remainder were due to shot fring.

ال

NEW TESTING MACHINE

The usefulness of the portable testing mechine, known as the Hounsfield Tensometer has been zomewhat restricted owing to the comparatively small test pieces that can be handled.

Messrs. Tensometer, Limited, 73, Southampton-row, London, W.C.1, have now developed a new form of the apparatus, which, in its three sizes can deal with "test pleces up to 10 in., 16 in, and 22 in, lung, respectively, these figures giving the distance between the chuck attachments. The new ab paratus can. therefore, be used for testing such materials as wire lead, fabrics and to forth, as well

ns, for Portland-place, London, W.1, for an additional short-wave broadcasting transmitter for the B.B.C. Empire broadcasting ser- vice. The construction of a new house building at Daventry to the transmitters, together with greatly extended aerial system, is to be put in hand shortly.

Messrs. The Economical. Boiler Washing Company, Limited. 3. Central-buildings, Westminister,

determining the tensile

strength on pieces of the same proportions as the B.S.I. standard` test pieces. The apparatus is known as the "worm gear_type". as distinct from the "lever type" of the smaller machine, and is suitable, by means of special at- tachments. for carrying out Brinell hardness tests, notched- bar tests. cast-iron bend tests. strip and plate tests, uniform bending moment bent test, com- pressior. Lests and punchshear testa. An

ΓΕΡΟΣ- autographic der giving large diagrams la embodied. The new machite is Messrs. The General Electric easily operated and autographic results can be obtained in a very Company. L'mited. Magnet House. K'ngsway, W.C.2. in addition to shart time by a comparatively un- having been entrusted with the skilled operator, who has a clear contract for lighting important view of the diagram as it is

plotted. portions of the first-class accom-

It can be supplied à? modation' on the Queen Mary, varying capacities, so as to pro- have now received orders to equip vide ultimate stress figures from the public rooms of the tourist-

200 tons per square inch down. accommodation as well as the to a few hundred pounds Der third-class parts of the vessel,

square inch.-

have received an order from the London and North Eastern Rall- way for a hot water boiler-wash- Ing plant for the Hornsey loosio- tive depot

יד

打

PORT

BEST

AND

EMERALCRETE

RAPID HARDENING PORTLAND CEMENT

IN PAPER BAGS OF 94LBS NETT

PRODUCT OF

GREENSLAND CEMENT CO.LTD.

"

EXCHANGE BUILDING.

HONG KONG

THE TAIKOO DOCKYARD & ENGINEERING COMPANY OF HONGKONG, LIMITED.

BUILDERS OF ALL CLASSES OF SHIPS. BUILDERS OF RECIPROCATING STEAM ENGINES. BUILDERS OF MARINE AND LAND BOILERS. BUILDERS OF TURBINE MACHINERY

Under License From Messrs Parsons, BUILDERS OF DIESEL ENGINES

Under Special License

From Messrs. Sulzer Bros., Winterthur. Licensed To Manufacture Lanz Perlit fron, Specially Suitable For Internal Combustion Engine Working Parts.

DOCK & SLIPWAYS,

FOR DOCKING VERY LARGE AS WELL AS SMALLER VESSELS,

ON ANY TIDE

3 ALL CLASSES OF SHIP, ENGINE AND, BOILER

REPAIRS AND EXTENSIVE

WELDING, BOTH ELECTRICAL AND OXY- ACETYLENE SKILFULLY AND PROMPTLY CARRIED OUT.

BUTTERFIELD & SWIRE, Agents,

HONG KONG, CHINA & JAPAN.

TEL ADDRESS: "TAIKOGDOCE," Hoxe Koxo, TELEPHONE: 30211.

CALL FLAG, "NUMERAL ONE." OVER " Pans ANT ANA”

WAR

HAS STARTED IN

ABYSSINIA

PICTORIAL MAPS OF THIS

COUNTRY ARE OBTAINABLE.

AT

HONGKONG DAILY PRESS

MOUNTED

50 cts, each

PRICES:-

UNMOUNTED 25 cts. each