"King George V
WHISKY
OPENING AND CLOSING FACILITATED BY
NEW SCREW CAP
Simple Safe & Secure
No corkscrew necessary
Possibility of leakage or contamination through faulty corks eliminated:
THE DISTILLERS AGENCY. LTD...
SOLE AGENTS
EDINBURGH!
614.
GANDE, PRICE & CO., LTD.,
St. George's Building, Ice House Street, DIAL 20135.
HONG KONG DAILY PRESS. SATURDAY, MAY 9; 1931
ENGINEERING AND
ELECTRICAL ADVANCES IN THE UNITED
STATES.
BIGGER AND BIGGER TURBO GENERATORS.
IMPROVEMENTS AT THE POWER
STATIONS.
years, is the gradual migration. from buildings into the open air, The other, of morn, recent origin, is operation in new media, such
BUILDING
GREEN ISLAND CEMENT CO.
PROGRESS OF WORK ON
DUAL LIFTS IN NEW PAPER MILL AT
OFFICE BUILDINGS.
INCREASE OF RENTABLE
AREA.
FOOCHOW.
TO BE COMPLETED THIS YEAR.
wood. These materials coat prac
the interior to the paper mill, 1
リ
18 estimated that raw materia. asts 617:79 per ton in Fukien, against 90 per tea in other caup- ties, a difference of 876.22, in raw material for each ton
of paper manufactured, aside from the cheap cost of inbour in this country.
New York. The problem of in-
With the steady growth of the creasing the rentable aren of an
public school system in China and cffice building by decreasing the the general advance of education, space taken by elevator shafts has the demand for paper has been been solved in the new main offien "tripled since 1020. China importe building of the Westinghouse Compractically all her papër, which in NEW PLANT.
pany, East Pittsburgh, Pa., by the 1020 amounted to 820,084,003, and installation of dual elevators. Thas 800,000,000 in 1920. Considerable progress towards.
a singlo elevator shaft is made to
China needs pager mills of her completion has been sunde with the de double duty by accommodating Greep Island Cement Company's two lifts, an express and a leeni, abundant supplies of raw material.. own, especially where there are new cement plant at Hok Un.
which are operated separately. Then Fukion province there is a rich One of the most notable recent
All the machinery, with the ex-installation shows that the engine supply of bamboo, weed."rice straw fentures of the American electrical
ception of some electrical gear, is eling difficulties of designing and several other wild grasses and industry has been the unusual de
now, un the site and nearly all this practical and perfectly safe dual velopment of water power. The
has been erected. The steel framelevator system can be antinfactorifically nothing in the provines ex- Fifteen-mile Falls Plant, opened as transformers in nitrogen, rotated buildings for the kilns, clinker overcome, though the height and cept the labour to earry them from last year, is notably large machines in hydrogen, and switch-store, coal mill, con store, raw 156,000kva. It works under a henti gear in oil or gum. Last year saw crushing and grinding sections have of 109ft., and its 133-mile transnis.the completion by the Westinghouse been erceted, and now only await sion line is nt 220,000 volts. In Company, of a 9,375kva. hydrogen sheeting-in. The concrete work is cidents in its construction were the cooled turbo-generator. The pro-well advanced and hoppers, includ diversion of the Connecticut River, fecting shaft, naturally, makes sting those for coal, limestone, clinker some 1,350,000 yards of excavation, a more difficult problem than the and gypsum, are completed. The 300,000 yards of conurets placed, various gas-filled synchronous con- cement silos are progressing, but 390,000 yards of earth, and 5,000 densers. Six months' tests on this are still about twenty feet below tons of structural steel. The cost generator indicate that, in hydro- the fiunt height, and it is expected exceeded £0,000,000, and the first gen, a given amount of active ma-
to finish this section next month. power unit was put into operation terial may have a rating at least The reinforced concrete tanks to within a week of the date scheduled 25 per cent greater than in air, contain the ground raw material or two years ago. The main genera that efficiencies are at least 1 per slurry, as it is termed, are com- tors are vertical, running at 138.5 cent better, and that insulation pleted and the erection of the air 1. p.m., and each rated nt 30,000kva, damage by carona at high voltages piping is proceeding. The slurry In the now Reed generating sta-need no longer be guarded against. will be kept mixed and agitated by tion at Pittsburgh are furnaces The space underneath the machine, means of compressed air at 40 lbs. which burn. 44,000, of coal each usually provided for air coolers, 18 per sq. in. led through this piping." per hour. Threo boilers heated by no longer necessary, and, since the The sections which are now prae- theso. furnaces supply ,000kw., machine must be hermetically seal-tieally complete comprise the kiln and the entire steam generating ed in any case, it can very easily house, raw crushing plant, raw plant is tended by only three men. be placed outdoors. The scaling grinding plant, coal storage and The mechanical stokers are single- glands and control apparatus pro. handling plant and coal grinding ended stokers 31ft. 10in. wide by ved themselves entirely, satisfac-plant. The last named is one af 10ft, in, deep. The front and rear story in this long test, and ap the unique features of the new walls of the furnaces are wator parently bydrogen cooling may be
ers have a beating surface ench of 31,705 sq. ft. The ash and clinker are ground under water and sluiced
character of the building, the num ber of elevators, their speed ind numerous other factors must all bo taken into account in the design,
In nu installation in a 20-storey building, which may be regarded as a typical example, the upper ear of the two is the express car, starting from the street level run- This great demand for paper. in ning to the eleventh floor and serv
this country and the abundant sap- ing the floors thence to the top
ply of raw material has led to the Its operation is not restricted in
formation of the Fukton Paper any way, except that it is automn-Manufacturing Company, a purely tically prevented ironi descending Chinese concern, whose mill is now while the other far is asezadina apidly nearing completion. The In an emergency, however, it enn capital of the company is $1,000,000, be "inched" up or down by hand. and the cost of the factory is esti- As soon as the express car, has mated at $500,000. The factory cleared the first floor, the lower will confine its output to mainly or local car rises to the street level medium grade writing and print from the basement where it hasing papers suitable for Chinese use. been waiting and then serves the A general description of the propos- lower ten floors without any reed machinery and process of the striction other than that it cannot paper mill follows:- approach within a predetermined distance of the upper ear. If the
Use Green Island Cement cooled, and the three Stirling boil. expected to be an important c'e works. Hot air is drawn for the operator tries to run the lower car
for
Constructural Work of
Every Description.
HOW GREEN ISLAND CEMENT IS MADE
Green Island Cement is manufactured from hard limestone and clay. It is necessary that these materials should be finely ground in order that they may come into intimate contact with one another in the burning process.
The finely pulverised materials are mixed - in a certain definite proportion, roughly one part of clay to three of limestone, and are fed to the Rotary Kilns,
In these kilns they meet the hot gases and flames generated by pulverised coal blown in at the other end of the kilns, and after various chemical actions have taken place, they combine to form Portland Cement Clinker.
The Clinker is ground down with a small percentage of gypsum to regulate the setting time, and Green Island Portland Cement is thus prodúced.
Although sounding so simple, in reality the ́ process is an intricate combination of mechanical, physical and chemical operations, needing great skill and care. Nothing. but constant and accurate supervision will yield the results so well-known with Green Island Cement, namely, strength, uniformity and reliability.
USE GREEN ISLAND CEMENT
Issued by the
GREEN ISLAND CEMENT CO., LTD.
2ND FLOOR,
EXCHANGE BUILDING.
away.
Turbo-Generators.
The tendency in the United States is to build turbo-generators in larger sizes at the maximum per- missible speeds, and the latest evid. ence of this tendency in the putting into operation of five 15,000kw. inits of 3,800 rpm. The units mentioned are approximately 63- per cent of the weight of their slower predecessors, though they are slightly longer, and the efficiency is about 3 per cent better. It is
the new
runt in machines of 30,000kw. and above, especially as it raises the limit of maximura size to which turbo-generators may be built,
Hydrogen-Filled Condonners.
clinker coolers and passes into the grinding will with the wet coal, and the drying and grinding takes place in this unit. When the can! is sufficiently fine, it is taken from the mill by the draught of air and The hydrogen-filled synchronous fafter passing through a cyclone condensers were built at East separator, is stored in readiness for Pittsburgh, each rated at 15,000kva, blowing into the kiln. The game at 750 r.p.m. The collector rings fan which blows the coal into the and brushes are in a small chamber kiln, also extracts the hot air from at the end, and may be inspected the cooler and a complete circuit is through glass windows, or reached, maintained. Therefore heat, which when the machine is shut down, by would otherwise he wasted, is used taking off the end, without loss of for both con: drying and sweeping the hydrogen charge.. The hydrothe mill. gen pressure is kept above that of the atmosphere so that any leak age will be outward.
The
Power House.
1. Boiler:- Kablitz · overfged
stoker of 6.2 M2 grade, Area under
à vertical tube of 130M2 heating
surface, working preasure 14 kg.
2. Engine: Bosing steam en-
gino,
Learer the upper one, the former automatically slowed down and stopped at a safe point, remaining there until either the operator runs it down or the upper car moves
One vertical enviosed compound farther away,
Beeter Steam Engine, jet conden Car operations so timed that, with piston valve gear. Hoch- ander normal conditions both cars wald's patent, acted upon by will reach their upper limits of shaft governor on high pressure trave! simultaneously. If, however, and low pressure cylinders. 400 the express car arrives at its do H.P. stination first, it kept there un- it the local enr completes its 'run' and begins to descend. The lower three phase generator. car cannot run and begins to des One 20 ks Brown Broveri cend. The lower ear cannot run up- dynamo direct coupled with A.P. The bad weather experienced this
wards towards the upper car, and generator. winter will delay the completion of the Intter is stopped should it hp- the plant somewhat, but it is anti-proach too near to the lower.
The clock has a dial ten feet in diameter which is divided into fifteen intervals of one minute rach,
3. Generator. One 194. kv.a.
Brown Boveri
One 5 kw, Brown Boveri Exciter.
Pulp Preparing Department. 1. Raw material, Preparing De- partment...
A. Chipper, "B" Screen; "Ć,” Elevator
By operating two ears in the enrac shaft, the shaits formerly devoted exclusively to locni service can be partly, if not entirely, omitted, and a later area of addi-ers (digentera.) trann revenue-producing floor. space obtained. A study of the ele vator layouts of certain typical
not, considered that the aise men- tioned represents the limit of de.
A new geared turbine generating (cipated that the new works will be velopment, and it is stated to be sei, half the weight of these preis full operation within the next feasible to build 3,600-r.p.m. tha
viously built, has recently been ́de- few months. chines rated at 25,000kw. As com- sigurd, primarily for marine use, pared with the former 1,800-.p. though equally applicable to other single-unit design, each rotor of apheres. This result, was obtained 15,000kw., 3,600-7.p.m., by employing electric welding, the tandem-compound turbine weighs use of an overhung gear and pin less than one-fourth as much, and ion, and a combination of the rear- turns between bearings about one- tion and impulse principles in the pointer, operated by a specially-projected buildings shows that the half as far apart. The advantages turbine wheel. The cylinder itself designed electric telechron move. use of dual elevators in these cases in practice of these facts are reis built up by welding, and a great ment, makes one revolution around would save floor space that could duced possible heat distortion when saving in weight is made by the the din! in fifteen minutes, or the standing and much quicker start welded structural bedplate. ing.
gearense is also welded. The use length of a quarter of play.
The big spectators' clock is con- of na overhung gear and pinion, the one from the generator shaft nected with a small electric control lieved to be the first time that a and the other from the turbine, propeller-typa fan mounted on the dispenses with two bearings and clock placed at the sideline timers' shaft of the generátor, has been the usual couplinga. The efficiency bench. Here there is a switch, used, though propsilery-type fans of this unit is very high. The which operates both clocks. Both for many buildings over twenty ured on a previous machine were steam throttle cannot be opened dials are marked in exactly the storeys high can be financed through separately driven.. This type of until oil pressure is established in
the additional neome obtained blower makes it possible to build the bearings, and any failure of same manner and they are perfectly from the extra rentable spaco 80
cured.... 5,600-r.p.m. generators with intern- that oil pressure immediately closes synchronized. al fans up to 25,000kva,, and the throttle and stops the set. it At the start of each quarter the 1,800-r.p.m. generators up to has the latest type of oil governor, pointers of the two clocks are set 100,000kv.
a mechanical overspoed stopy and.
The fan used on these machinese is of particular interest, as it is be
Two movements in the use of a hydraulic overspeed stop which at zero. When play starts the arge apparatus for power plants closes the throttle when the oil pres timekeeper puts the switch to Are very-interesting. One, which sure of the governor goes too high. On, which starts the clocks has been in progress now for some 1 The set is rated at 250kw.
electrically, and watches the game,
THE NEW ELECTRIC CLOCK.
TELLS TIME AT HARVARD FOOTBALL MATCHES,
:,
963,000. be rented for from 833,000 to At 6 per cent. interest, these suns represent capital invest- ments ranging from slightly less than $200,000 to over $1,400,000, By
2. Two spherical revolving boil-
3. Two edge runners.
4. Bleaching Eagine-35 M. > capacity.
3. Benter 6,300 lit. capacity.
Paper Making Machine,
1. Paper making machine (mould machine.) 2,200 min (87 inches) wide." 35 meters por m.
2. Cutting machine.
3. Paling Press Hydrolic. (Hydraulic.)
These unchines were supplied by Escher Wyss & Co.. Zurich, Swit
substituting dual elevators for "zerland. The first three shipments parate banks of focal and express have arrived at Foochow and the corn, the whole elevator installation factory is to be completed by the end of October, 1931. The outpul of the mill is from 4 to 8 tons of Paper per day. Far Eastern Review.
MECHANISED RICE CULTIVATION.
EXPERIMENTS IN MALAYA.
are capable of being realised by methods at present in vogue.
"The Committee considers that in all probability work on these lines constitutes the most certain method of increasing production, " and it hopes to be able to pre- sent definite observations on this subject in the Final Report."
this connection His Majesty's
Trade Commissioner at Singapore. very carefully-his attention, inci- recently published report of
the Malayan Rice Cultivation Com-reports that a Chinese resident in dentally not being subject to intermittee, appointed by the Govern, Penang, Mr. Lim Chin Guan, has The clock made its debut in the ruptions by persons wanting to ment, contained the following state-been granted a lease for fifty years Harvard-Army classic on October know how many minutes are left to 18 before 00,000 spectators, after it
had been carefully tested in early play. This condition is always & Benson contests, and scored a com-
source of trouble when the sideline timekeeper uses a slop watch.
A huge electric clock to answer plete success. Near the end of the the thousands of queries. heard at Į sveond half, when the Army back-
When time is taken out during every football game, "How many hold was pounding at Harvard's the game the timekeeper throws minutes to play ?" has been install. Jine for a second touchdown, it
bis switch to. "Off",and both Led-in-Harvard-Stadium-at-Gam-seems-that-most-of-the-19,009-people-i
bridge, Mass. It is the first elea had one eye on the scrimmage and clocks stop. When the play re tric timing device to be used in the one eye on the clock,
sumes, the switch goes to "On !! American grid-iron game.
„[~{Continued-at-fous of atri-columu.)- again,
ment :-...
of a large arca-believed to be 5.000 acres—in the State of Fernk The Committee has 'consider for the cultivation of ries, Modern ed the possibility of cultivating machinery is to be used for raiding padi land, by means of ploughs, the erop. The matter is of interest tractors and modern machinery, as being the first application of the So far as it is at present inform-kind which has been granted in
fully ed, provided
efficient Mainya, and also for the renann methods of water control are that similar applications will likely available, the problem presents be minde by wealthy Chinese no insuperable difficulties, and it the future: It is also, of great, in. would seem that on these lines terest to the British makers of. cultivation, of padi may be emagricultural muefinery, whose bro barked upon with prospects of duct is universally recognised na considerably greater profits than sesend to none, and who ought to he, able to do well in such an |-{Continued at fant uf-next-column.) essentially British field as Malaya,