THE CHINA MAIL, THURSDAY," JANUARY, 20,* ̃1019.
For Curient Re
NOONO
SIEMENS
CABLES
BROTHERS
Full particulars from Sote Agents:
SWIRE & MACLAINE LTD.
ENGINEERING DEPARTMENT ICONNAUGHT RD C. TEL. 30331.
316 sizes.or
ENDLESS Y-KELTS
CAN BE
APB-24
Replaced with only 4 sizes of Veclink
As many as 316 sixes of industrial and fractional endless V hells can be replaced with only four recis of
Veelink. the Ink V-belt. From these handy reels required belt lengths are quickly uncoupled, made endless and installed. Belt re- placements for any type drive are always hand. Rapid turnover of VeeLink on reels eliminates spare belt deterior. ation. Complex. costly belt inventories are ended. Stock re- cords-are-simplifled.—Standard-reels-hold-100-fent, savo stor-
age spaco.
on
VeeLink goes on quickly and easily...lowers machine down. time. On drives with outboard bearings, it is installed with- out moving the motor or dismantling the machine.
on drives of this type have been estimated to run as high as 9/10 the cost of installing any other V-belt.
4
VEELINK
V-BELT
ENGINEERING PAGE
BRITISH ENGINEER DEVELOPS WIRELESS SET WITHOUT WIRES
The inside of an ordinary radio receiver is a long
way from living up to the name "wireless sot”. by which it is often known. Under the motal frame, or chassis, there is a complicated not- work of wires connecting the various compone- ents together. Each wire necessitates tho mak- ing of at least two soldered joints--ono at aither end—and in a medium-sized recõivor. there may be 100 or more of these.
All of these joints have to be made by hand when the set is being assembled, and this is a relatively expensive process. Another thing about the set under examination is that it consists of a large number of parts, or components, such as valveholders, colls, condensers and resistors, each of which must be separately made and mounted on the chassis.
By means of fils electronical- both sides of the panel, and “guna". ly-controlled set-making ap- are switched into action which paratus, Mr. John Sargrove has coat these with a thin layer of succeeded in eliminating from high resistance alloy,
The panel now passes into o the radio receiver all connect-
further stage of the machine ing wires, alt hand-made joints where grinders remove all metal and nearly all separately made deposits from both surfaces. We components. In his process. ure thus left with an insulating now operating with completely panel, on either side of which are coated successful results, the making. grouves and depressions mounting and linking up of with metal. In these grooves or depressions which form the turns components are carried out
of enlis, the plates of condensers automatically and simultaneous-or the connecting links, the metal ly by an ingenious machine. is a good conductor. The zig-zag
A plastle blank" is fed by an
grooves contain a deposit or metal operator into one end of the with a high resistance to current. machine. A second operator re-
Automatic Tests celves it as it emerges on a con- veyor belt at the other end of the machine. But it is no longer a blank. It is a complete panel, containing the components already mentioned, not only made by the machine, but linked by it into the circuits of a radlo receiver,
shape.
A photographic method of type-setting for linking with lithographic or gravura printing. The text is set on an ọr. dinary monotype keyboard, selection being made from a ma- trix which carrice photographic Imagis of the type to be used. This picture shows the photographic matrix which carries the images of a particular front of type.
Britain's Aluminium Bridge
At this point autornatic tests aro are used for high-frequency wm- detection, -low-fre- made to ensure that conductors, plification,
amplification, output, Insulators and resistors are pre-quency
and rectification and so on. Sargrova sent where they should be nowhere else. The next process has designed a valve which is One may capable of performing each of iso special interest. wonder how the grooves which these functions, and this one type correspond to the wires of an oris used in all the valve-holders of dinary recolver can be made to his sets. croas one another without there
Admittedly such a "jack-of-all- being any leakage of current be tween the two. This is accom- trades" valve is not quite so The new bridge recently do- plished in the following way
efficient in any position as a valveclared open by Britain's Minister To simplify (matters, take the of a specialised type would be of Transport, Mr. Alfred Barnes, direction of one groove ag East-But it la far cheaper to produce at Sunderland in the county of a100.000 valves all of the same Durham in North, Eastern Eng- West and that of the other North-South. On the
front kind than to make 20,000 each ot
on
B. ELLIOTT & CO., LTD. London
MANUFACTURERS OF
HIGHEST QUALITY MACHINE TOOLS
MILLERS, SHAPERO, DRILLB,
LATHES, GRINDERS,
· HACKSAWS, - BANDRAW8;, ETC),
"FOR IMMEDIATE-DELIVERY-
ONLY MERCHANT & IMPORT TRADE SUPPLIED. FACTORY REPRESENTATIVES: J. GIBSON & CO.
4, QUEEN'S ROAD, CENTRAL'
BRITISH MADE G.F. MALLEABLE TUDE FITTINGS HAVING PERFECT THREADS AND REAL MALLEABILITY, RELIABLE FOR STEAM, WATER, GAS, OIL AND AIR.
Every fitting individually tested to 360 lbs. por square inch.
STOCKS CARRIED
SIBER HEGNER & CO., LTD..
The machine delivers finished panels at the rate of one every 20 sectndis,
Besides the two operators there is an electrician, ready to deal with any adjustment that may be needed, but his services. aro so seldom required that the can supervise two or three machines.
The plastic blank fed into the|101
of the panel the Enst-West five different types. Nor does the land, is the first movable bridg machine is normally a sheet of
of individual values in the world to be made of alu St. George's Bldg. insulating material, oblong in groove is continuous. The North-efficiency
minium niloy not only effects' a South groove comes to an end at matter enormously in a set dominium alloy. The use of plu- Moulded into its upper and under surfaces are grooves and a hole a short distance from the signed primarily for dealing with a
East-West groove and restarts at local broadcasting station. What saving of steal, but also effects an economy in electrical manipulation depressions of various sizes and chapes. There
are also numerous ! another hole a little way bevond the inventor has accomplished so owing to its lighiness. The new it. Turn the panel over. These far is a practical system of mass bridge, a span of ninety feet bo- hales right through the panel.
low-priced receivers tween two docks in the port of the producing First of all the grooves attract two holes are connected
more quickly and far more cheap- Sunderland, is designed to carry attention. Some
underside by a metal-filled groove arc straight. Tubular rivets are automatically ly than by conventional methods. both road and rail traffic, and some form zig-zags,come make
He has no intention of stopping spirals. The
driven through the holes and straight
teilnahed. Thus the North-South there, for there is no reason why weighs only 54 tons. when the panchas passed her path ducks under the East-West the system should be so se to Sunderland's new bridge is part
machine, will form the can-'
via the rivets and the groove on the small receiver. Within reason, of eight projects in an ambitious necting links, the spirals will con- the underside,
there is no limit to the number of improvement programme for the tain the turns of the coils, the
entrance has Similar tubular rivets automa- panels, each automatically com- port. zig-zags will become resistore and the other depressions, round or tically inserted into the remaining pleted by a machine, that can be bean deepened and widened to holes de other useful jobs. Some, combined to build up a large and ninety feet to enable larger ships rectangular in shape, will be for instance, are arranged in highly efficient radio receiver, to use the dock. This was the turned into condensers, Every
to form valveholders. Nor need this remarkable process reason why the now bridge has for the be limited to the production of aroused wide interest among en- (audio radio receivers. Actually, work gineers everywhere, and among
has been going for some time on the three hundred guests who at the development of television re-tended the opening ceremony ceivers built up of such machine- there were engineers from noveral made panels.
other countries.
groups
auch depression on the face of the Others provide sockets Savings
very few components frequency transformers and so on) which cannot be grown" on the panel, during is passage through
VeeLink-known throughout the States-has proven itself
United
in service on thousands upon thou- sands of drives, Wherever it is used higher levels of power
trans mission efficiency are attained.
Tested Proved.". Adopted
by Industry
Augustable to any length.
"Adaptablerto "dasy" Drise"
Stocks Of All Sizes Available Sole Agents-KIU FOONG TRADING CO.
20, Connaught Fload, C.
Tal. 28403
panel has an exactly correspond- ing depression at the back, only a thin web of plastle being left be tween the two. This web con- stitutes the dielectric of the con-
denser.
Film Of Zinc
the machine.
After undergoing further search. ing tests, all automatically made, As the panel goes into the first the panel is given, a protective stage of the machine, it is placed sprayed-on coating of plastic in- between "masks" which cover insulating material and emerges at the zig-zag grooves, but leave all the output end of the machine the rest exposed. When the panel complete, save for the valves and reaches this stage, spray-guns, the very small number of other discharging a mist of molten zinc, parts which are quickly plugged are automatically switched into into the sockeţa wälting for them, action. The whole of the exposell At least two panels are needed surfaces, including the grooves and to form the "works" of a com- depressions, thus receive a depo-plete receiving set. But this in- sit of metallle zinc, which is a troduces no dificulty. Near the good conductor of electricity. The corners of each panel are sockeis Bim of zine is deposited on both (tubular rivets again) for the con- faces of the panel.
nections to the
next panel. The connections
made
arg
In the next stage masks cover all save the zig-zag grooves on by plugging in metni rods,
CROSSLEY Direct
Reversing.
SCAVENGE PUMP DIESEL MARINE ENGINES
TYPE 'CR
The regular and efficient operation of the Crossley Marine Engine is well-known to all engineers in charge. -The design incorporates exhaust pulse pressure charging." A scavenge efficiency of over "90" per cent is obrined."
One of a range of this typề is illuse-' rated, it is built in four to eight cylinder ales, ranging from 600 B.H.P. st 250 R.P.M. to 1.440 B.H.P. at 370 R.P.M.
Our full range of engines of all types Als from 16:8,H.P, to 3,000 8,1,F..
CROSSLEY BROTHERS · LIMITED, OPENSHAW, MANCHESTER 11
Fondon Le Langhamı - Hünja, 308 Negent Mail, WI
QUICK DELIVERIES AVAILABLE
Sole Agents: CHINA CONSTRUCTION CO., (IMPORTS) LTD.
HONG KONG G
AI BANK BUILDING
which thus become not only con- nectors but also distance-pieces between the panels. Nothing now remains to be done but to allde the sot into its plastic cabinet and to plug into their respective
AUSTRALIA BUYS CRANES FROM P.J.
The dock
The acceptance of a new (ma- terial for structural engineering purposes can always be described as an epoch-making event. In constructing ** world's Brat moving bridge from altaninlumi Five huge cranes, puchas- alloy, strong alloy plates, mado ed by the Joint Coal Board by the Brish Aluminium Com- for open-cut mines, in Aux- pany, ware used by Head, Wright- tralia are on their way from Kon and Company, Limited, of Manila to ‘Australia.
Thornaby-on-Tees, the builders of They
the new bridge. the order for will complete
Use Of Electronles In”. eleven cranes pur
purchased in the Philippines, the first con- Electronics in
scientif signment of which was ship- search has become one of the most lively and fruitful branches ped in August,
of science; · In industry electronics can be used for detecting internal fisse in custings, impurities in plastics and toxtiles, and mola- «ture":In stored grain, as well as
the presence
тлув of harmful Electronics may also be used for many other purposes. Britain's
The units are part of the general plans for mechanisa- tion of the mines, particular- ly in the State of New South Wales.
sockets the connectors of the WASHABLE PAINT
loudspeaker and of the mains our- rent supply.
Forward Stop
-
Tα-
Department of Scientific and In- dustrial: Research has set up an advisory, group of experts who For a now, twist in interior do are ready to visit firms and as- corating. Slasons Brothers & Co, slat them where the possibility Sargrove has made another in Ltd., has come up with an oll-of using automatie electronic, and portant forward step in the de-bound, washable water paint. other equipment is worth investi- velopment of low-priced, MDSS=
Under the trade name of Hall's gation. Already the introduction produced receivers."-
Distemper, this product can be of electronte equipment In Indus secured locally through the Pekin trial processes has often resulted
In Eyridicate, Ltd.
nic timer to be wod
In the sets with which we are familiar valves of different types.
SUCH GLARE AND WASTE OF ELECTRICITY
.
80w
PHILIPS
300w)
AH! NOW I KNOW
BY BUYING
PHILIPS
FLUORESCENT
economy,"
...
Ад In a number of processes, such as lithography, blue-printing, high- frequency welding and Induction furnaces, where high accuracy in repetition Lenschilal, has been placed on the market recently by Electro Methods, Itd., 221, The Vale, London, N.W:: 11. Ergland. This apparatus has a time range of pre-fourth of a second to 00 seconds, and within these limits smooth control is possible by turning a dial.
A standard elektronky counter is being manufactured by Cinema Television, Lid, Worsely Bridge -Fund Lower Sydenham, London, 8.1:26, England. The counter has been designed specially for Industrial purposes, and enables "counting to be effected at-rates-up- to, 89,000 counts per minute. It can be used," also" to distingulah between, articles of different size.
TUBES Chaps, colour, wel hit or electrical
1
Telephone 226
BRC
FABRIC
ELECTRICALLY CROSS-WELDED
STEEL WIRE MESH
IN ROLLS OR SHEETS
FOR CONCRETE REINFORCEMENT
Btook Avaliable
DAVIE, BOAG
Chartered Bank Bldg-
CO., LTD.
Tel. 20117;
Agents for
BRITISH REINFORCED CONCRETE ENG. CO.LY
FOR
QUALITY-DURABILITY-DESIGN
INSTALL
"Standard"
PLUMBING FIXTURES
:WRITE FOR.OUR HOME. BOOKLET.
Agenta:"
resistance. The equipment con- ANDERSEN, MEYER & COMPANY, LTD.
mists of a photo-electric cell and | DAVID HOUSE light source, mind the Instrument ind
U. TELI ZBOBI,in