1947-09-18 — Page 8

INTRODUCING THE NEW --

Tops in

Value

HQ-129-X

THE CHINA MAIL THURSDAY, SEPTEMBER 18, 1947.

HAMMARLUND

1. 11 Standard Tubes.

2. G Bands-1 Standard Broadcast, & Short Wave Bands cover-

Ing the entire Short Wave section.

3. Separate Band Spread.

4. Fligh Belectivity and Sensitivity for weak and crowdeil

signals.

5. Crystal Filter.

·

6. With B. F. Oscillator for C. W. reception.

7. Noise Eliminator to avoid all interferences,

8. Easy connection for microphone and record changer.

9. 12" M.P, Speaker,

10. Powerful Output and many other favourable features.

Special Price-HK$1,250.00

45

CHINA TRADERS, LTD.

Kadlo Dept.

14, Wing Wo St.

Tel. 33539 28538

THE JARDINE ENGINEERING CORPORATIOŃ

ELECTRICAL AND MECHANICAL ENGINEERS AND CONTRACTORS

14-16 PEDDER STREET, HONG KONG."

Telephone 30311

ENGINEERING PAGE

Britain's

Hammarlund

HQ-129-X All-Wave

While not a set for the ordinary Kam- the new knob-twiddler, mariand HQ-120-X is the set for the man who really wants to go all oat for the distant short-wave stations.

par- While designed ticularly for communications use, it provides excellent quality music and volee reception in botht the standard and the short-wave

banda. Either

loud- broadenst

reception

speaker or headphone

can be used.`

for

Sensitive enough to pick up ex- tremely weak signals, the ceiver has the selectivity

signals in the

r

10

mon!

n: 31

bands. An 11-tube set, Feovers a continuous range frequencies from 640 KC to MC 1555 metres to 9.7 metres) in six bands. A 12-inch loudspeaker comes with it.

Band-spread tuning a supplied on the four higher frequency bands, with actual calibration in the

metre 80, 40, 20 and 10 bands; calibration may be readily made for any, other band within the range.

Many types of noise and inter- ference are appreciably reduced by the noise miter and the special crystal

Hammarlund

filter-a patent Power hum is negligible, The automatic volume control helps to kedy music and voice re- ception at the volume desired.

mien Incidentally, either

phone or record changer can be connected esally.

Biggest Press

Under-Water Welding Since 1915

ia

A Mammoth machine with a "punch" of "1,500! tons, capable in one blow of stamping out

For Your

ROOFING SANITARY

ELECTRICAL

REFRIGERATION

AIR-CONDITIONING

HOT AND COLD WATER HEATING AND VENTILATING

INSTALLATIONS

CONSULT

the entire side or top of REISS, BRADLEY & CO., LTD.

a motor car body, has just been completed at Newcastle. It is the largest press ever bullt In Great Britain.

This

new engineering glant has been built by Vickers-Arm. strongs for the Rootes Group,: who are to inatal it to supple- ment the battery of presses al- reatly operating at the British Light Steel Pressings plant at Warple' Way, Acton, London.

Before the war, such equip from ment had to be bought America or Germany. Now it la being made by Vickers nt their Elswick

Works,

British engineers

Newcastle.

believe that

this press is better than any- thing which previously had to be imported,

. It weighs 30 tons.

stamp out the side

window apertures,

or

It can including the

anc

entire top of a enr with 1,500-ton thrust.

Triple Action

It is triple action it can mould steel sheets either from above or below. Steel sheets can be pressed as fast as they can be loaded into the machine up to a maximum rate of four an hour. Yet it is so finely polsed that it can be adjusted to crack the shell of an egg without spilling the contents.

The electric motors operating

thle press have a total power The of only 140 horsepower. colossal thrust comes from the

The main function in this] Very little information newly-developed proccas of available relating to the design This is a luxury ret, bullt for hard and lone use, with a power-under-water welding Hes in the of the earlier types of under- fal output and a high eclectivity electrodes and their holders, the water cutting torches, which are impetus of flywheels, some of and sensitivity. Its special price modern type being the result of often referred to as insulated which weigh over 5 tons and

practical experience holders. in Hong Kong of $1,250 is ex-extengive tremely low for a set which and research. amateurs and professionala have lang classed as being in the "Rolls-Royce" class of radio ceivers. Local agents are

206cts | Traders Ltd.

WE CANNOT ALL AFFORD

THIS--

BUT

WE CAN AFFORD A

Francis Barnett

"POWERBIKE"

AND ENJOY

COMFORTABLE & ECONÒMICAL TRAVELLING

TO SUCH SPOTS AS THIS

Manufacturers Representatives:-

FAR EAST IMPORT & EXPORT LIMITED 127, Hong Kong & Shanghat Bank Building, T:1: 32509.

UNITED DEVELOPMENT COMPANY (CHINA) LTD.

129, Hong Kong & Shanghal Bank Building

Bold Distributors

STOTIE 82851%

revolve minute.

at 805 revolutiona o

Latest Type

It has push-button controls The first arc torch was deve

and engineering safeguards have The latest type of torch com- been incorporated Teloped about 1915 and produced

to prevent China in a wide variety of types and prises two items, the main body injury to workers.

forms, but the results obtained and the head. The external]

Recently Sir William Rootes were very poor in comparison part of the body is constructed (Chairman) and his brother, with the oxy-hydrogen proccas. of gun metal,

the electrical Sir Reginald

Rootes (Deputy Consequently the arc "process conductors of a chrome copper Chairman of the Rootes Group) was only used

operations alloy being Insulated from the visited the Elswick Works, New- where non-ferrous metals had to inside of the body by means of custle, with Commander Sir be cut,

on

mlen tubing.

In the last few years, however, The head, into which the cut- the same London company that ting carbon is inserted, is de- made such rapid. strides

tachable from the torch, which under-water welding

(Under enables it to be replaced in the Water Welders and Repairers event of it becoming damaged by Ltd) have introduced elements continuous rough usage or burn. | into the cutting electrode and ing of contacts. Fitted to the designed equipment which has inalde of the head is a small proved the are process to be as spring-loaded ball valve the effective as the gas process." function of which is to prevent water from entoring the main oxygen chamber when the oxygen is not flowing.

When cutting beneath the sur- face of water with the arc pro cess, the reverse effect of under- water welding has to be effect

The oxy-are process, being so ed, and this is made possible by simple, in theory and practice, the use of the electric arg as enables a skilled diver to be pre-heating medium and then taught to cut through almost directing a stream of oxygen on any thickness of metal with only the pre-heated area to cause then few days' training. metal to oxidise and burn away;

Robert Micklem (Chairman of Vickers-Armstrongs). A lunch was held with engineers and technicians to mark the com pletion of this press,

Sir William Rootes said: "It cems to me that Britain Can Not Only Make It but, that Britain Can Make It Bigl

"Thanks to the Initiative and technical resources of Vickers- Armstrongs, it is now possible for us to buy equipment of this calibre in Britain, made by British workmen to give other} workmen employment, and to speed our export drive.

"Our purchase of this press part of our £8,000,000 plan, announced in 1945, for the post- war production of commercial vehleles.”

cara

and

Unique Problems Problems act by the transport

The electrical current may be Having connected the positive taken from any standard direct lead to the, work to provide the current generator which is return of current to the source capable of a striking voltage of supply, the carbon electrode of the press and its installe between 60 and 90 volta and an is screwed into the head of the tion at British Light Steel Press-

Acton amperage of 150-6500 amperes. torch. The flow of oxygen is inga at When cutting the electrode is controlled by electrically almost unique,

The press will be dismantled negative and the work positive, operated solenoid valvo which is!

מת

have been

.,

ENGINEERING DEPARTMENT

ESTIMATES FREE

REPAIR WORK UNDERTAKEN

PROMPT & EFFICIENT SERVICE BY SKILLED WORKMEN

UNDER THE SUPERVISION OF

QUALIFIED ENGINEERS

NATIONAL CITY BANK OF NEW YORK BUILDING,

2. Queen's Road Central,

Tel. 28006 (3 lines)

CENTURY GLIDE-O-MATIC ELECTRIC IRONS.

Built for Easier, Speedier Ironing.

(Guaranteed by "Good Housekeeping")

US$4.62 each F.A.S. New York.

Immediate Shipment.

GEORGE LIN & COMPANY

202 BANK OF EAST ASIA BLDG.

TEL 24408-22651

Exclusius Representative of

FRAZAR & COMPANY, NEW YORK.

DEHUMIDIFIERS

FOR

APB

and the current is fed to the on the surface and comes into as it will have to be carried by DRYING ROOMS; BANK VAULTS, PROVI- torch by means of a 500 amp, operation, allowing oxygen to road transport. The head of capacity rubber flexible cable. flow, only when the arc is struck the press alone weighs 67 tons, SION STORES AND ALL SIMILAR_PLACES

The oxygen is supplied from The signal to close the kalife and a special route has had to

the usual type of cylinder to the switch is given, allowing the be worked of 410.

correction on the torch through current to flow and the arc is miles as compared with a direct WHERE A ́LOW RELATIVE HUMIDITY IS

"P.V.C hose.

struck on the point where the route of 800. All traffic move. ments will have to be made at night, and the speed limit for the journey will be 5 m.p.h.

Six inch thick steel was cut cut is to be started. An extreme

1

Gaseous Shield

at a speed of 2.14 feet per hourly close arc is "drawn" and the under ideal conditioza using only oxygen jot applied. 800 amperes, 90 volts open cir cult with an oxygen pressure of 110.1b. per square inch. It was expected that this speed could be increased considerably, using 500 amperys.

"Glide-O-Matic" Electric Iron

eut.

On arrival at Acton, it will take a full weekend to manoeuvre the press head alone into the The heat caused by the are, factory and Warple Way will and the burning away of the have to be closed to traffic. copper plating and coating forms British Light Steel Pressings a gaseous shield which prevents have already excavated 1,800 the heat being conducted to the tons of earth for the "pit", and surrounding water and allowing the special concrete bed will the oxygen to oxidise and blow weigh 480 tona. Forty feet of away the molten metal from the the press shop root Have had to be raised to accommodate the The pressure of oxygen 10- machine, quired varies according to the When in operation it will speed The Century "Gilde-O-Matic" thickness of metal to be cut and the production of Rootes Group electric iron, for which George the depth of operation, and as car bodies. Lin & Co. ara total agents, is mentioned previously, tables giv guaranteed by "Good House Ing the average working pres- STEEL PRODUCTION keeping magazine, susuznimn surės are generally, supplied" by ** It is a balanced, streamlined the manufacturers of equipment. Iron and Steel Federation for Iron, features of which... Bre In conclusion, it will be agreed April show that the production of | thermostatie- control, = light that the under-water cutting of stool ingote and casings, which weight, permanent cord, plastic steel is as fundamentally simple fell from 12,470,000 ton a year handle and tilt-up hoel-rest, as surface operations. The in January to 10,190.000 tona i It provides 3% lb. of smooth successful performance of these March owing to the must crist Ironing surface and has an extra operations depends on obtainiar rose to: 12,204,000 tons a yiur in large bevelled edge to comble it a gaseous shield to protect the Antily but this output, was to grilde under buttons, plente proheating medium and more on achieved only by depleting 10 and tucks. George Lin Co. the physical abilities of the stocks of steel-making materialu report they have any quantity operator than the actual use of and can be maintained, only. If Greatly, for shipment.

the equipment, we may res supplies of coking coal improve.

Figures larued by the British

ESSENTIAL.

Individually Designed to Meet Your Requirements

FOR FURTHER PARTICULARS.

TELEPHONE

DODWELL & CO., LTD.

daire Dept.

2003B