Paito #219
THE CHINA MAIL, THURSDAY, APRIL 20, 1930.
i
Sure, you've got space
to install a wonderful bath like this
Consult us
THE NEO-Angle Bath-
on all
Standard
[Agents!
PLUMBING FIXTURES
AVAILABLE IN "A" QUALITY ONLY
50w
bolls This beautiful actually provides roomler bathing spes, yet la inte shorter wall lengths 1hers conventional batha, Chaser from glamming white and
my Cicero, ta other bathreum Axtures,
ANDERSEN, MEYER & COMPANY, LTD.
DAVID HOUSE
TEL: 28091.
CHANY
Westinghouse
Delus
Supet
Wality
V.1029
G
KELK-CERATORS
DAVIE, BOAG
& CO., LTD.
-SHOWROOM:_.
ALEXANDRA BUILDING,
TEL: 26852.
The
This new range of heitory chargers comprises and twe, and thromelscuit models with • range of outpat In each type as shown in the table opposite, cams are of manuele design for Bench mounting, with sloping instrument and central bane), and are Uzlabot in blue, with chromtum-plated iubular fuel and Ufting handles.
a poło Metal rectiscation la employal, saing alment. The transformers basa primary Leppines for 11. 200, 220, 240 and 10 volle and ure valtakle for 10/10 cycias, Tapping on the secondary are provided to adjurt the output for charging varying number of cells and for controlling the charging rata, the aelection being made by iwu may action 1# vocipwenting rotary switches in such clerit, transformers are double-wound, air-cooled, und Bakelite- Empregnated to specification W.T.1000.
A single folf wwiich weak souhla-pole fuses are provided on the primary aldu, und mach weigst diromit is protected by a single-poin Iné end includes a 215" moving col) numeleż· 34 B-8.41/1987. All fuse entriers, which are of the "Blydlok" type, are mounted en the front of the unil for easy replacement. Further protection is alreded by '"Klixen" thermal proceed protection devices Atlad in the rectifier packs ladich ter, lemps and output beɛminals are provided for such gizett,
ENGINEERING PAGE
PETROLEUM TRANSPORT BY SEA
in
At tha were
Before the invention of through the canal on her way to
Singapore and Bangkok, special types of ships, tho Since
early thdse
days, bll transport of petroleum by tankers have increased greatly in sea was considered to be size, and are now regularly scen separate oil-tight tanks.
almost every port. highly dangerous. The beginning of 1940 first cargo of oil to cross the Atlantic from the U.S. was carried to England in wooden barrels, in the 224-tan brig Elizabeth Watts, in 1861.
Arc
jons
valves
ed up into approximately nine modation aboard modern tankers main tanks and these are sub- is among the cleanest and; best to divided by two longitudinal bulk- he found in merchant ships. The heads, which virtually makes 27 most modern tankers even pro- vide separate, accommodation for A every member of the crew. there
two pump 12,000 ton tanker would carry a There are usually
pumps are crew of about 13 oleers and 30 of rooms "whose cargo vessels !,672 ocean-going 2000 gross tone and over, with connected to cach cargo tank and to 40 bands.
During the war, one of the most a gross tonnage of 15,450,000 tons also to deck discharges by a sys- or 23,810,000
deadweight tem of pipe-lines, the flow of oil (ie, carrying capacity).
being directed to or from the dif- dangerous places for all ships Gap," where Eleven to sixteen thousand tons ferent compartments by opening was the "Atlantic
shutting
situated air cover could not be provided deadweight
now the most or
from the shore. Although navel common gize, though many ord throughout the entire system,
The ship's cargo pumps are aircraft carriers could have closed larger. Recently tankers of a capacity up to 30,000 tons d.w. used to discharge cargo through the gap, these were too scarce lo large rubber hoses Joining the be provided in the numbers re- Owing to the special pre- have come into commission.
pipe-lines to connections quired. The solution was found The first alcam-driven oli tan- deck cautions considered necessary
aboard by shore chantmen into Merchant Aircraft to ensure safe stowage and the kers were coal-fired, these later sahore, while the cargo is normal- in the conversion of suitable mer-
Have place to oil-fired steamers, y pumped
A modern tanker can Carriers - "MAC ships." difficulty in obtaining labour but today the tendency is increas-pumps.
For this
purpose, oil-tankers to handle so dangerous a caringly towards motor-driven all load at a very rapid rate of over co, loading operations occupied tankers. It is interesting to note 1,000 tons per hour with almost were ideal, since they carried no derricks for handling cargo and that the first motor. ship of any no labour.
When a tanker has discharged had little superstructure to im kind to be built for ocean-going service was the Vulcanus, an eil- her cargo and before proceeding pede the provision of a flight- tanker which was ordered as long to sea, some of her cargo tanks deck; moreover, tankers could al- Tankers with cargo or ballast. Several go as 1009. These changes have are filled with sea water to make ways sall in loaded trim, whether tended to make tankers both more the vessel seaworthy.
thus converted, since the division of the hull into thereby serving the dual purpose have a speed of 14 to 15 knots.
water-tight compartments to con- of transporting oil and making The outstanding feature of a tanker is the placing of the en-tain the all gives them greater possible the provision of air cover buoyancy, than is for themselves and for the rest gines and funnel att as this ob- strength and viates the necessity for having an possessed by ordinary merchant of their convoy.
Before the last war, the British il-tight propeller shaft, and the ships. carga la isolated from the engine-
several weeks.
Soon, the export of petroleum from the U.S. developed into a regular trade, and in 1884 nearly 32 million gallons of dil were shipped across the Atlantic in economical and faster and many have exceptional seaworthiness, oil-tankers were wooden barrels.
But this form of container was uncconomical as well as laborious, so an attempt was made to carry oil in bulk in the holds of wooden ships lined with cement or felt and divided into compartments by wooden bulkheads; this was no unsafe that for a time the owners reverted to the carriage of oll in
cases or barrels.
Soon, however, it was being carried in bulk in large iron tanks Atted into the cargo holds.
The sailing ship Charles of 794 tons, was probably the first to be converted to carry petroleum la this way across the Atlantie: she had 50 fron tanks, each of about 13 tons capacity, and traded be tween the United States and Europe from 1800 to 1872.
A5 time went on, a smaller number of large tanks was used, until finally this type of petroleum carrier was provided with only one large tank in each hold.
In the meantime, in 1863, an Iron sailing ship of 148 feet long was designed to carry petroleum in bulk without the aid of caska, this was the Atlantic launched at St. Peters, near Newcastle-on- Tyne, and in 1872 the Vaderland, steam-driven bulk oil carrier of 3,748 tons was built at Jarrow- on-Tyne. There are, however, no records that either of these ships, was used for the purpase for which it was constructed.
น
In 1605 the Gluckauf, the first all-tanker, was specially design- ed. The ship's hull served as a receptacle for the oll in bulk; she was 300 feet long, had a tonnage of 2,307 gross tons, and was pro- pelled by triple-expansion steam engines.
SUMMER is COMING!
NOW is the time to plan
AIR-CONDITIONING
CONSULT
ANDERSEN, MEYER & COMPANY, LTD.
DAVID HOUSE
EXPERTS ON
COOLING
DEHUMIDIFICATION VENTILATION
TEL. 20091
SELF-CONTAINED AIR CONDITIONERS FOR SINGLE ROOMS
TELEGRAPH WIRE
STRAINING TOOLS
Mado in England.
· STRAINING VICES 5′′ & 6′′ -
DUTCH TONGS to take up 3/16" Wire
5/16"
."
"
"
LIONS CLAWS War-
On more than one occasion, a Empire and Commonwealth had room and from the fore part by tanker, which has been cut in two the largest tanker fleet in the cofferdams, which erc narrow by torpedo, mine or collision, has world, with 3,264,241 gross tons; spaces, about three feet in width, had its two parts safely brought the U.S. fleet was the next largest,
Into port to be joined together with 2,800,780 gross tons. extending right across the ship.
There is no need to go fully again to return to the oil-carrying time losses of British tankers,. into all the developments that trade with its efficiency in no way coupled with the large US. build- Ing programme of this type of Speed and engines have im- vessel, have substantially alter- have since taken place except to impaired.
the Isherwood say that in 1908
In the lasted the pre-war position, but Bri-. system of construction introduced proved tremendously what may be called the modern few years, and the design of the tish shipyards are busily engaged stringent safety in restoring the British tanker tanker. The design was a tre- vessel and the mendous step forward and was precautions Imposed reduce the fleet. based on the longitudinal system peace-time fire risk to negligible of framing
(instead of vertical proportions. Tankers are classed framing similar to the ribs in a ns "clean" or "dirty" according made for to whether they carry "white olls" rowing boat) which
and increased such as motor spirit and kerosine, great strength carrying capacity. There have or "black oils" such as crude or then it has grown still larger, and many more ships are on order, been further developments of this fuel-oil,
A "dirty" tanker can be made especially in British shipyards design and Incidentally, the sys-
by a careful cleansing where tankers account for rough- tem has been copied throughout "clean"
the world.
These terms have no ly half of all ships ordered or other meaning. The crew accom- building.
The entire cargo space is divid-
process.
By the beginning of 1948, it was than in 1930, already larger amounting, to 3,457,009 gross tons, with a carrying capacity of over Since 5,000,000 tons deadweight.
Scientific development in new products
Quile understandably, in pre- nor crack whatever the climatic tem so designed that several con-i be carried on at An entirely new versations can paring to show at a great trade conditions.
em- the same time in complete pri- Fair side by side with their com- patented process has been
more ployed for the manufacture of vacy. The equipment is a main petitors, Industrialists are than a little chary of saying toc this product, which is finished in operated automatic amplifier con- much in advance of the warcs electro-plate nickel silver.
Another firm, of London this they plan to exhibit.
time, has been perfecting for ex
of
For some time, however, the oil-carrying ship continued to be
But I have been privileged to regarded as a potential danger, and claborate precautions were take a peep into the secreta -Inken-before-the--first-tanker..was some of the manufacturers who allowed to pass through the Suez will be displaying their products Canal, This was the Murex at the British Industries Fair. which in 1893 salled from West
Since last year's Fair United Hartlepool to Batoum to load & cargo of oil and then passed
GE.C.
INDUSTRIAL BATTERY CHARGERS
SINGLE CIRCUIT MODELS
Cat. No.
Cimult
Outpat MOR. Amp
- Price
Max. No.
APPUR D
GİDERSFORS
H.
V.2005
#4′′ × 10′′x 13"
V.2008
B
18 x 12"x21′′
V.2012
19" x 17"x 21′′
On Application
V.2017
20
36
38′′ × 22a × 25*
NON
ONKE
TWO CIRCUIT MODELS
222*
21" x 16"x20"
26"×21"×21*
Application
,2020
2024
'THREE GIRCUIT MODELS
Application
THE BRITISH GENERAL ELECTRIC CO.LTD.
trol unit with 20 identical sub- units contained in neat cabinets; measuring only six inches by fiva inches and four inches deep.
Then
By Phyllis Davies tract as well as add, and "welgtis
there' is a pocket-size adding machine, which will sub- Made of a only three ounces. rustless metal alloy, it has a mir- ror finish and is contained in a leather-type wallet:
The machine has been specially designed for countries using the system, or for, dollars, or sterling, and
Kingdom manufacturers have been pondering on the lessons they learned from the overseas buyers hibition a portable short-wave they met. Many of them followed diathermy weighing only 38 to 40 up contacts and talks with world pounds, which has a great output buyers et last year's Fair by and is designed not to cause in- metric sending representatives abroad to terference with radio or television, france, rupees, study market requirements at Like all this firm's apparatus, It it will add or subtract from zero first hand.
is finished to withstand extremes to 9,999,999.99, with no wheels or These men came back to Bri-of climate, and will be of great springs to become broken or dis tain brim-full of ideas and en-practical value for hospital ward work and for doctors and other thusiasm for "giving the custo
treating patients in practioners mer what he wants" from plastle:
their
homes. chop-sticks for the Far East to
Since the last Fair a well known
placed..
to
further contribution labour-saving in modern office work is a dual feed device for bright North American stylo tien plano manufacturing company electric typewriters, for the simul- for the sunnier lands of the Brihas been conducting research to taneous writing of two different tish Commonwealth.
enhance the tonal qualities of a records. Lina Anding is automa- Take two extremes of same-
new grand planoforte it has de- tic..
Among other new producta thing all boys respond to, rall signed. The instrument is only ways, the real and the toy. At & feet 8 Inches in length, and the a fully automatic paper punching the Fair there will be a new makers claim that it has the machine which needs no skilled 300-400 scientific Instrument to serve the volume and quality of tone operator. It punches former and striking new deve, usually found only in much larger inches of paper per hour on any instruments. Thus concert hall standard or special.type of punch The first is a self-contained re- performance is possible for the in an ever-moving line, in which cording Instrument for use at the modern small set. line-side to record the speed of trains. Battery operated," it can|:.: be set up at any selected post- tion, and will show on a chart the actual speed of the train at the time of passing the recording point. Now that's a usoful piece. of equipment for the world's rail- Ways.
lopment of the latter.
Plastic train set.
The makers of a new plastic mechanical train set, to be shown
High speed communicating
system
-
In this connection, there is an other space saving innovation in furnishing in a new type of studio couch, or bed sottos, which by a single movement can be converted from a couch into a comfortable bed.
a 20-way Intercommunicating sys-
Among developments in office in the Toys and Games section equipment there will be on show Fat Olympia claim that their pro- ducts are · indestructible. The train, set incorporates, say the manufacturers, a new palerited plastic mechanism believed to be the only one of its kind in the world.. And except for the steel spring of the engine, even, the clockwork mechanism Is Itself
FOR HEAVY PUMPING
The use of slow-running, self-
plastic. The rails are plastic too, priming pumps for the transmis
sion of heavy liquids and semi- and a grown up man is quite solids in extending in industry, welcome to stamp on them] heavily say the makers, without Among the applications of units Pump and is made by the proud of a patent stem le also Engineering Co. Ltd., are theee terlocking the rail joints, and the used successfully for handling generally handsome ppearance milk, fruit pulp, toothpaste, mo- of this railroad in’Talitature,
It may seem a far cry from on other materials being fighting aircraft to the manufac= Among
rnish," glúo)" rubber
Juding some with
ture of biscuit, barrels, but not for pumped, industrially are oll, soap.
Birmingham Geth who has been paint and thinking of customers in the hot later
wind most humid climates, carbury 60, after long experiment, an oak biscuits barrel:27:
other, Vabrasive
there
Ja no possibility of sheets becoming displaced.
For photo process work there is an all metal dark-room preel- sion colour camera, which the makers believe will attract con- siderable interest
A
Stocks carried by
A. MING & CO., LTD.
司公限有店金玉狡刚
105, Des Voeux Ed., C. (Opp. Central Market)
23012
Telsz
26147
If you can drive it
with a V-BELT
you can drive it BEST with
VEELINK
Made in All Standard Sizes.
· Fits All Standard V-BELT Grooves.
Available in Standard 100-foot Reels.:
Sole Agents-KIU FOONG TRADING CO. 20, Connaught Road, C.
AN ENGINE RUSTED INSIDE? “A TYPEWRITER CORRODED? A SAFE YOU CAN'T USE?
A MACHINE- RUSTED,
SANDED, CORRODED?
Tel. 28403
DERUSTIT
Under the Eas Quick Electrochemical:
used in
operating!
plant now.
Coll
DERUSTIT (HONGKONG) LTD.