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HONG DAILY PRESS, SATURDAY, AUGUST 12, “1933
ENGINEERING
AND
BUILDING
NEWSKY-WRITING MACHINE ”
An English Engineering Triumph
蟲
a attention.
POWDERED COAL BOULDER DAM AND THE England, & new advertising housed in a special casing behind
PULVERISING PLANT IN- STALLED IN YORKSHIRE
The question of puvierised-coal firing for bailer and other furnaces has been dealt with on numerous occasions in our columns, and at tention has also been given to schemes which have been advanced for the marketing of the fuel in prepared form.
In Germany and the United States a number of industries have grown up based upon the cen tralised production of pulverised coal and its distribution in that form to consumers. For several
COLORADO RIVER
"AMERICA'S STUPENDOUS
UNDERTAKING
TO IRRIGATE AND SAFEGUARD A VAST AREA
Ample Supply.
་
Resembling in appearance MRASİYO bowitzer of enormous Current for the are-lamp of pro- waight
correspondent jector is supplied by a dynama appliance has recently made its the driver's cab.. The doors of this are wooden frames with appearance, mounted upon a Den casing nis 4-ton forward-control chassis. wire-mesh panels to ensure free air-
The latter fact alone indicates Bow for cooling. Power is trans that the "weapon" must be much mitted from a take-off arranged" lighter than it looks, but, neverthe-from the gear box. less, ita range is comparable with that of modern artillery in that ita effects embrace a radius of many miles.
For the projectile thrown is a beam of light.
Not necessarily a plain beam of white light; for the optical prin- ciples of the machine are those of the magic lantern, but magnified ca a gigantic scale In consequence colour-effects, designs and written messages may beatown," as well a mechanically-operated moving subjecte.
The Lamp.
The lamp itself, Sperry, takes no less than 150 amperes, giving a (four hundred and fifty millions), beam candle-power of 450,000,000 but even this prodigious Agura is outclassed by the light leaving the projector, as it is claim- ed that the lens system raises it ta between two and three thousand
million candle-power.
01
It is believed that the lenses are and it is gratifying to learn that amongst the biggest in the world. they are of British manufacture, The United Kingdom Optical Co., of Mill Hill, being responsible, though in the earlier days, while in progress, experimenting was lenses had to be obtained from Germany..
The "slide" used to carry the message is a 12-inch glass disc,
Boulder City, Nov.-" Do you, that time until today the Salon see those two cofferdams down Sea has been a visible reminder of what this powerful river might do there?" so asked my engineer guide. "The upper, one diverts the stream if left to itself. flow into the diversion tunnels and gives us chance to work in the Sld river bed You can see the months of two of the, tunnels."
He was pointing straight down years past, large concerns in those 1000 feet from the rim of the inner countries have been deriving their gorge of Black Canyon of the heat requirements solely from pul- Colorado River, down toward the verised coal prepared at the col-river bed, which was dry, a condi- liers and delivered direct to their tion never visible to the eye of man'j and through mountain ranges and so novel in conception and dominat which is placed in a rotatable works. In Great Britain, up til until those cofferdams had been will be large enough to give ample ing in practice that it compels the magazine, this enabling changes to
Bonds to the mount of For a sheet, clouds are used, but 8290,000,000 have been authorised to on a clear night, it is claimed that build works that will take water a stratum of vapour, normally in from the river below the dam and visible, is sufficient substitute. The convey it through a great conduit image, therefore, which is focussed for a distance of 28 miles to the at an altitude of several thousand Los Angeles area. This conduit feet, becomes visible for many will run across valleys, over deserts miles around, while the scheme is
supply for 10,000,000 people. It is the present, those consumers who completed:
"Yes," I said, "I see the dams.' estimated to relieve these people for cylinder, serving to reproduce the have wished to avail themsetres of Actually I did not see them at a generation of fear of water in sound. In this sound reproduction the benefits of pulverised-fuel firing all that mile-long dry channel, sufficiency. base been obliged to install the looked as level as a floor. There Work on this task has begun. the process of impressing the sound necessary coal-grinding. plant to were two little black spots in the The Reconstruction Finance Cor- is reversed. the waves being, con into sound. The sound & small verted produce their requirements on site. side wall of the canyon which I poration has advanced Although the cost of pulverised-fuel took to be the mouths of the tun- share of the money. Contracts for waves, as they appear on the re- firing equipment compares favour.nels An hour later we drove down several of the tunnels through cords, are lines of varying length
in regular rows on the paper. ably with oil and gas installations, way tunnel, and emerged on top cently been let and, supplies are old, invented the photoliptophone there, passed through a great rail- which this water is to pass have re-.
Señor Crude, who is only 26 years the additional expense of providing the upper cofferdam, which I then now moving across wide deserts to
two years ago in Buenos Aires coul-preparation plant, together saw to be nearly 100 feet high, a several af the sites.
where he lives. with the extra space and attentionwide embankment stretching from involved, has undoubtedly retarded wall to wall. It had been dwarfed the more general adoption of this by the vastness of those physical form of firing, in spite of the ad- features through which alone the can measure comparisons. vantageous operating results to be eye
Those tiny black. spots were holes ottaipal
30 feet nerom
18
The Colorado Truly Awful. In the 1630 miles of its rugged. the Colorado experiences course more marked contrasts than any other stream on earth. It drains an area thres times the size of Germany, and its waters colder and more torrid, wetter and more arid, higher and more de- pressed areas, than are elsewhere to be found on the continent.
lave
The Bow of this river is most erratic. At times there is merely a muddy frickle at Yuma, and again it may discharge 250,000 cubic feet per second. Needless to say the problem of controlling such a stream and throwing a dam across it is no small one, requiring infinite care and skill.
THE PHOTOLIPTOPHONE'
· INVENTION TO MAKE TAL-
Our readers will therefore be
The river bed was dry, and prg interested to learn that, as the re-mies, there were working behind sult of the steadily-increasing de- that cofferdam with tremendous mand for the supply of coal in electric shovels and great fleets of pulverised form. Messrs. H. Toiletrucks to uncover bedrock, so that washe and Company, Limited, they might anchor the Boulder Dam te the everlasting walls through Canada House, 4-5. Norfolk-street, which the turbulent Colorado had Strand. London, W.C.2, have ra for ages cut its way, 20 cently decided to install plant at a
World's Greatest Work.. colliery in Yorkshire for the pro- The most imposing, engineering duction of powdered coal for marwork "ever undertaken by man is that of this Boulder Dam and its keting purposes. The installation, subordinata projects. The one it is anticipated, will commencé located on the Colorado River, be production during July. For re-tween northwestern Arizona and gular consumption, the fuel will be southwestern Nevada: the others distributed in specially-designed are in California The beneficent.
KIES OF NEWSPAPERS tank wagons, from which it will be influeness of this work and its discharged by pipe line into the effect on human activities probably
Madrid-Talking supplements tỷ exceed those of any other project consumer's bunker with all the sim-
ever conceived, not international in newspapers are visualized from de monstrations bere of a new phono- plicity, convenience and cleanliness
stop% of fuel oil. Firms desiring to in- The well-being of the South-west graph type of machine called a phototiptophone. Evening paper vestigate pulverised-coal firing, depends upon this programme. however, will be able to do so by The leading argument in its favour purchasers would then be able to was the salvation of the rich, Im-listen to the day's speeches, news converting a single furnace or perial Valley, the removal of fear and music at their convenience boiler and for tiral purposes, of destruction of that populous and bedtime stories could be told to
propose to intensively cultivated area, one of send the children to "sleep.
Señor Fernando Crudo, supply samples of the fuel packed the fruitful agricultural régions of
Argentine youth, is the inventor waterproof bags-Engineering.
the warld.
Records for the “photoliptophone ** Next in point of importance wa the need of water for the coastal are of paper. Moreover, these can areas" of which Los Angeles is cen-be rapidly and economically repro-
duced by printing.
Messrs. Tollemache
For Constructural Work of Every
Description
די
Use Green Island Cement
TWO REFLEX TYPE ROTARY KILNS HAVING AN OVER ALL
.
LENGTH OF 254 FEET. THESE KILNS ARE USED
ΤΟ
- MANUFACTURE GREEN ISLAND" CEMENT.
Issued by the
GREEN ISLAND CEMENT CO., LTD.
2ND FLOOR
EXCHANGE BUILDING
tre.
AD
In making records for the ma In the third place, arguments for this development were based on the chine sound waves are photograph- production of more electric powered, with the aid of the photoelec than Niagara Falls and Muscle tric cell which is employed in sound Shoals, combined, are estimated to films. From the negative as many supply; the surety of a continuous prints as desired can be made, and flow of water for the irrigation of like other photographs these can be Imperial Valley, and of enough ad printed in newspapers.
Intrate made in Madrid by ditional to warrant putting into Señor Crudo an address by: Dr. cultivation another million or two Gregoria Maranon, one of Spain's of acres. there and thereabouts.
The dam and reclamation work intellectuals, was reproduced from will cost $165,000,000, the corrala-the negative within 18 minutes af- ter he finished speaking. The results tive and subordinate enterprise about $230,000,000 more..
of tests showed the sound reproduc It is estimated the basis of contracts tion to be more exact than that of
the phonograph. already made with responsible con- cerns that the entire cost of the gov-ou the record; a ray of light flashes There is no scratching of a needle erament investment will be amortiz
ed in less than 30 years by the 2n the photographed sound waves, ag these ratats over a revolving sale of energy, of which some (Continued on next column).
6,000,000,000 horsepower will be produced annually as primary pow.
er and half as much as secondary power.
Colorado & Mud Carrier.
The Colorado River runs so full of silt friérosion from its upper courses and from its tributaries, that a vast area of what was once the northerly part of the Gulf of California has, in the course of centuries, been reclaimed from the
hep
The rock beds, that once lay where now exist the various mile-deep canyons of the Colorado, have been ground away, carried downstream. and deposited a silt, forming the Imperial Valley and walling off the Salton Basin from inundations by the sea
Most of the Imperial Valley, 1s below the ocean and all of it is lower than the level of the river at food, while river bed and banks are constantly rising because of the deposit of this material.
It is but a question of time, per haps a very short time, when some unusual food may break through. these soft, w-lying shores and de stroy utterly this valley and all of its hard-won civilization A serious break did occur, & genera- tion ago, during the Presidency of Theodore Roosevelt, and only by. tremendous efforts on the part of the Bouthern Pacific Railway and the Federal Government was totai destruction then averted. From
Shanks
& • CO • LTD
BARRHEAD-SCOTLAND
be made without switching off the lamp
At the rear of the chassis, an ammunition case" is employed for the conveyance of spares and equipment of all kinds, and on the roof is a supporting saddle to hold the barrel while, travelling.
The machine, a product of the land, is being exploited by Messrs. Dennis Factory at Guildford, Eng-
Luminastra, Ltd, of Midland Bank Chambers, Bromley, Kent.
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"Magnet ELECTRIC FANS
MADE IN ENGLAND
Price with Bod
£5.18.6.
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For further particulars please apply :- The General Electric Co. of China, Ltd. Queen's Building, Hong Kong.
SANITARY
WARE
MODERN SANITARY
EARTHENWARE
APPLIANCES IN WHITE & COLOUR
THE JARDINE ENGINEERING CORPORATION, LD,
14 PEDDER ST HONG KONE
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dinances of Hongkong)
SOLELACENTS
SHAMEEN, CANTON,
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