Page
THE
HONGKONG DAILY PRESS, MONDAY, JANUARY 22ND, 1993.
Saves over 50% in Power Costs and Time compared with Air Power
DORMAN DUSTLESS WAVE POWER ROCK DRILL
SILF
36 hp. R.A.C. Petrol Engine Wave Power Plant working THREE Drills simultaneously or separately at 2,400 blows per minute or at any frequency required.
Dustless Drilling
without increased
EQUIPMENT or POWER COSTS
J
INDEPENDENT and Automatically synchronised Rotation of the Drill Steels on the return stroke of the Hammer. No Splines used. Any Drill Steel used from 1-in. to 4-in, bits with one chuck only. The short stroke and high frequency make for ease in collaring holes as Wave Power impulses arrive continuously at all lengths of stroke from zero.
The running Water conveying the Power converts all the .`roek debris into Uquid sitdge. Controlled by Drill Operator.. Keeps Drill Cool. The bit always operates on the virgin rock face.
WILL DRILL AND CLEAR 20ft HOLES,
TRAN
%
PURCHASED BY THE BOMBAY MUNICIPALITY.
Generator
can be worked
close up to
the
ROCK FACE
Wave Power Costs compared with Compressed Air Power Costs
'Using Electricity as the motive power at 3d. per unit, Wave Power shows a Saving of the Power Costs alone oi approximately 16/- per 100 feet when bärizontally drijßng sbort holes (4 feeldeep). With deeper holes (20 feet deep) and fewer changes of drill bits Wave Power would show greater savings of the power costs than 16/- for each 100 feet drilled.
13
...
the speed of a
Steam
+
DOWN HOLES drilled by a single plant to a depth of 20 feet Piston drill. driven at double
Wave worn Hammers replaced at small cost without the necessity of the scrapping or regrinding of the Wave Rock Drill Body which continues workable. This is a distinct saving in maintenance cost compared with Compressed Air Practice.
Comparative tests have been made by an Independent Engineer of a Wave Power Rock Drill with the latest pattern of a Compressed Air Drill, both horizontally drilling the same diameter holes, and using same sterls, through a 4 foot thick block of hardest Cornish Granito. The Wave Power Generator and Air Compressor were driven by an electric motor. In each case four steels were used, starting with 2 inch bit and finishing with 1 inch bit.
The Power both consumed when drilling and with the drill shut off was recorded and results in unlts given below.
a. Time drilling hole through 4 ft. block including time to set up drill for next hole
D.
Natt drilling time...
. Time occupied in changing steels and setting up drill for next hole
d Power Consumption when drilling
..
Power Consumption when drill was shut off
THEN
f. Power cost when drilling in units (K.We hrs.)
in units
g. "Power cost when drill shut off
A. Total power cost {ƒ+gh-
COMPRESSED AIL WAVE PORKEL
4 minutes
17.28 KW.
6.97 K.W.`
17 minutes
10 minutes
15 minutes
of minutes
4 minutes
11.9 K.W. 7.0 KW.."
3.85 units
464 unita 4.314 units
1.29 units
467 unita 1.757 units
انسل
Wave Power drills at twice the speed when using only two thirds of the power consumed by Compressed Air both working under the same conditions, vis,, 64 minutes compared to 13 minutes taken by Compressed Air, therefore Drilling by Wave the Power cost is only one-third the cost of drilling by Compressed "Air, viz., Wave Power costs 1.29 units whereas Air Power Costs 3.85 units per foot drilled.
Including the time and power for changing Steels (4 minutes in each case) the inclusive power costs are 1.757 units per foot drilled for Wave as compared to 4.314 units for Air. Wave Power costs are only 40% of Compressed Air Power costs-per-foot drilled therefore, conservatively stated Wave shows savings in Power and Time alone of more than 50%
Ji
There are no Mechanical Springs. Lower Maintenanos Costa. Absolute Portability. The plant can be worked by unskilled labour and the working pressures are within perfectly safe limits. Fine fitting pistons not necessary thereby reducing maintenance costs. Wave Power Hammer to water lubricated.
i
Where the drilling hole traverses fissures or joint planes or drilling near a faulted zone there is reduced jambing of Wave driven drill.
Head and Works: STAFFORD, ENGLAND.
W. H. DORMAN & CO., LTD., STAFFORD. London Office: ST. BLIDES 100SE, SALISBUAT 30. 20.4
SOUTH MANCHURIA RAILWAY
Operating all Laws or Bouth Manchuria and Chores (Korna) East of Murdan-
SUMMER HOLIDAY-
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No
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DOZ Z W
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for OGONDAF-Host
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431, under the direos managment of the BOUTH MANCHURIA, BAILWAY CO. Ilmatabed Booklets and all Information port fzén om Enguori,
Applications may be sent her the Hotel Managers as the various rescrie or ka
THE SUFERINTENDENT OF HOTEIS, Traño Depa: tment, Tablo: Add Maniotes," ***BOUTH KANCHURIA BAILWAY. DateL
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WHY TE
-GROWTH ÷OF EMPIRE.
White
SIR F. LUGARD'S VIEWS.
The Right Hon. Sir Frederick Lugard read an interesting paper at the Royal Colonial Institute last month on the "Growth of Empire" The following ex tracts from his paper are taken from the official organ of the lastitute..,
In the Tropics we find all stages of political evolution. Some already enjoy representative Government; some, like Egypt and Mesopotamia, baye kings of their own some like parts of Nigerin, Uganda, Malaya, and the. Protected Status
HIGHER THAN EVEREST ?
IR G. PEREIRA'S "WONDERFUL
»MOUNTAIN,”
Sir George Torein in his joursay nordis Tibet saw in the band of the Yellow River
wonderful mountain called Amaema- chin, which, he has stated, "may be the highest in the world,”....
Authorities in London who have been consulted by a representative" of Thre Observer consider it very improbable that there is any mountain higher than Everest. Amnemachin, it is true, has never been ecientifically measured, but it in India. enjoys a measure of autonomy la pointed out that there have been other under their own rulers. In every one of travellers in Tibet, and that no special. the far fung dependencies of the British attention has hitherto been called to it, Commonwealth this process of internal [Sir George Pereira says it is the finest growth is taking place from year to year. mountain be has ever seen, and was. It is the sign and manifestation of entirely covered with snow. living organism which develops and "To get a mountain over 9,000 It, in comes to maturity not by accretiana from height standing by itself, as Sir George without but by vital process from within, Pereira saya the, Amnemachin stands. The process of growth normally pre- would be extremely doubtful," Colenel sents two systems of evolution. It type Howard-Bury, M.P.. said. was India, where the two systems et Everest group you go ap gradually and growth were to be seen side by side. The you have, peaks rising to 25,000, 28,000, one & Bureauerney composed of the heat 27,000, and 28,000 ft. To have a solitary men that England could produce, with mountain ristry up from a plain to a when, as education fitted them for a height exceeding that of Everest would be ponsibility, were included with certain something so colossal that it is really limitations the, best qualißed of the gor very improgable that this mountain in erned race. The other a limited. Auto Tibet is the highest in the world. cracy where hereditary chiefs ruled, their own subjects within prescribed limits as to foreign policy and armed forces, and under the guidance of the controlling Power.
WESTERN THEORIES.
*In
the
“A mountain of 25,000 or 28.000 ft.
extra standing by itself would be ordinarily, imposing, and for a traveller who had no means of measuring is would have the appearance of being higher than it really is. We should certainly have heard of this mountain before if it were of the enormous size which Sir Gorge supposes, and, on the whole, I think the description must be regarded na rather
vague.
Of these two systems, the Bureaucratie is undoubtedly the more efficient, though more costly than that of a limited Native Autocracy, and where the population is in the earliest stage of tribal evolution, as in
The highest peaks in the world are in the greater part of Africa, or where, as in
the Himalayas. Nocther chain .of. India it consists of different races, speak mountains is comparable to this range ing many languages, and professing, relis either for its number of high peaks, or gions intolerant of each other, there is for the length of its mountains, or, for the earlier inception of control na alterite extraordinary beauty and variety of native. But Bureaucratic rule, in spite
of its efficiency, is a cul de sac which 500 Of its peaks Everest stands up a thousand feet higher than any other. leads nowhere. Clearly, it must become No other mountata in any other part of increasing unpopular with that minority the world approaches it. which, trained in. an alien, school, had
"In other parts of. Tibet besides that imbibed the political theories of the mentioned by Sir George Pereira there West, and instead of identifying itself are solitary mountains. There is Kailas. with the natural rulers aspires to take the for example, a mountain about 22,000 ft. place of the alien Bureaucracy, however high, standing by itself as a prramid, Jacking its leaders may be in experience with layers of rock and snow alternately, and however much they have become Anyone socing it for the first time would severed from the bulk of the people in no doubt say it is a great deal higher s thought and in social aspirations. Its than it is. because of its isolated position. evolution is all in the direction of" rest of the mountains in Tibet that presentative government by an Oligatchy are very striking in appearance are holy In Protectorates, Legislative and Execu; mountains. The people are tive Councils are oreated where there were worshippers. They have a great apprecia none before. Nominated Members give tion of the glories of nature... Anything place to elected Members. Official majo very fine
attribute they rities on the Councils are susperseded by supernatural; and in their fancy it is representative government and it in turn inhabited by a divinity of some kind grows into modified, and eventually into Being afraid of ghosts and devils, which, unrestricted self-government.
they believe,. live in the valleys and pases of all their mountains, the Tibetans try to propitiate them with prayer wheels and inscriptions upon the rocks, and they carry about with them amulets and charms. You also see little white propitiatory flags tied to atioks gr strings fluttering in the wind in many of the passes."
On the other hand this type of evolu tion is natural to some small and homo logous communities of the Tropics as in the West Indies which have by long as sociation with British trend of political thought, and by the diffusion of eduen tion, advanced far along the road which leads to representative forms of govern ment. The whole, history of the African populations of the West Indies (says Mr. Wood in his reporty inevitably drives them towards representative institutions fashioned on the British riodel." And
to
natura.
the
EMPIRE WIRELESS AGITATION. The Empire Preas Union is to send a of late years India itself has essayed to deputation to the Posimarter-General follow the same path, with results which this month to urge upon him the declara- de yet are not very encouraging.
tion of a policy providing, within a rea sanable period, for an adequate systen of Empira wireless..
THE INEVITABLE OUTCOME. But those who criticize with asperity the present system of reforms in India fal; I think, to realize (as Sir V. Chiral
has demonstrated), that they are, the of respect for authority, coupled with iu. inevitable outcome of the systems of struction in hygiene, agriculture, and the education which we had introduced, and arts and crafts of the village, than to the political ideals which we had foster- enter on the threshold of history, geogra ed through several generations. The Phy, and mathematics into whose inner error-if error there has been-day in our recomes the village scholar will never failure in times now long past to face the penetrate. In the figher grades ground- issue squarely, whether or not the politi ing in the elementary truths of political cal ideals of the West were well adapted economy would ronder youth, less amena.. to the East, and if not, to create a stem ble to the fallacies of the agitator. In capable of gradual evolution, more suited many of our Tropical dependencies it is to the traditions of the people, such as admitted that the results of education has been successfully evolved in some of
have not been satisfactory, and the aut put, it is said, has been characterized by the Native 8tatea
a lack of respect for any authority, parental or other, and even by a tendency to sedition.
ÉDUCATION FIRST."- Along the alternative path of rule through their own Chiefs the educative
"RESPONSIBLE TO PARLIAMENT'' ▼ process can begin even in the earliest
We have discussed the method of in- stages of social evolution, parallel with dividual and internal evolution in these the guiding hand of Bureaucracy, and the Tropical dependencies and the immense powers and responsibilities of the Native
Ralers can be gradually increased so they diversity which characterises them Year show themselves capable of enlightened by year, as they develop, their problems guvernment. The Controlling Power of administrative and economic develop cannot abdicate its responsibility as Tasant become more numerons and more tes for the welfare and happiness of the complex, and the burden on the Secretary insotionlate majority, either to sa educat. of State, who is responsible to. Parlia ed minority or to a nativa raler without ment for the proper administration of proof on their part of some approach to each one of them, but who holds office on competence, integrity, and readiness to an average for less than three years,
Is there any subordinate self-interest to the public continually increases.
•
Wellard A native riles can be guided means by which, in accordance with the and controlled and if necessary replaced. traditional British method of decentra An Oligarchy of so-called representatives lization, and delegation to this charged which proves itself unfit to govern is with responsibility, his task can be much more difficult to deal with or, once rendered more possible for a Minister to
discharge adequately! established, to get rid of
It has been suggested that this might The heart of the problem of the ad vancement of a poople lies in the nature be done by grouping together several and quality of the education afforded to dependencies whose geographical propin- them and the type of citizen it producquity renders it possible for a general This is the real measure of the growth of supervision to be exercised over the whole people and of its claim to political in group by & High Commissioner or Gover dependence Of late years it has, I think, or General, to whom might be delegat- been recognized, especially as regarded some of the powers now Axercised by backward races, that education should be the Secretary of State. The administrative a means of training character, and of as well as the economic interests of the moral discipline, rather than a mere several units would, it is urged, bo pro training of the intellect. Literary and moted by this closer association under a professional studies are for the fow. For common head. It would not, of course, the many it is surely more useful to in- it involve any loss Federation
mean Amalgamation or Unification, nor oulcate the principles of social co-opera- tion and of corporate responsibility, and (Continută at foot of next wolumn.)
where, as Mr. Wood has shown in the cans of the West Indies, any scheme of effective federation is not practicablä.