1950-03-09 — Page 8

THE CHINA MAIL, THURSDAY, MARCH 6, 1980.

GENERAL ELECTRIC

U.S.A.

For all Industrial Requirements,

G.E. MOTORS & CONTROLS

Agents:

ENGINEERING PAGE

Worthington model air conditioner

The Worthington Model CCY

ANDERSEN, MEYER & COMPANY, LTD. series, package air conditioners,

DAVID HOUSE

A

TEL: 28091.

MIDGET HOIST

WITH

GIANT Strength

The Yalo MIDGET KING is a moderately prived production tool with every (Fature industry desirca in a general-purjust clic« tric uint. It

• COMPACT

• POWERFUL

• RUGGEDLY BUILT

• EASY TO OPERATI

• EASY TO MAINTAIN

• LOW IN COST

Available śei capacities from 14 to 2 tuzn. Learn how MÌDGET KING efficiucy anwerven worker energy and cuta produc tion costs. Plions or cure it today.

YALE

BOOK NOW FOR EARLY DELIVERY

DISTRIBUTORS:

YU TUNG TAI LTD.

Engineering Dept.

10% YORK BLDG.

TEL 33145

OIL STONES

NORTON PIKE CO., U.S.A.

INDIA BENCH STONES, SQUARE AND TRIANGULAR STONES.

HARD ARKANSAS_FILES

Flat, Round, Square, Diamond, Triangular, Bevel, Oval, Point, Penknife, Jewellers and Engʻrs Pencil,

Stocks carried by

A. MING & CO., LTD.

TARTE &***

105, Des Voeux Rd., C.

(Opp. Central Market)

Tols:

23012.

28147

are designed to provide cooling, dehumidifcution, ventilation, cleaning (and heating of de- sired), of air. Two sizes atc available, Model SCY 350, with nominal capacity of 30,000 cool- ing units (3 tons), and Model SCY 550, with nominal copa- city of 00,000 cooling units (5 {lons).

n

Outside air may be taken into of the unit in any proportion outside to recirculated air; from ail recirculated air to all out- nido air. All air, both outside.

n recirculated,

filtered. When the unit is used within the "standard discharge space, plenum section" is offered, which contains a front discharge grill top, and back and plenum panels,

with When the unit is used

recommended duct work, it is

dl- that the duel be connected rectly to the fan outlot and that the discharge plenum section be omitted entirely. This will give lowor bolter eficiency and cost.

The cabinet is fabricated from steel sheets bonderised to resist corrosion. Parts normally exposed to moisture are made of zinc- conted steel. Units are fabricated with electrical welding and mo- dery

The fastening devices. cabinet houses fan, couling coil, Aller

compressor, condenser, compressor and fan motors, and all auxiliary equipment,

The discharge plenum section is of steel (priced separately) sheets, bonderised to resist cor= The standard discharge rusion. plenum section consista

of front discharge grill, and

London airport | Revised works as it grows

London airport came into regular use by olvi! airlines on January 1; 1940, little more than one year after work started. Temporary administrative and maintenance *- commodation on the Bath-London roadalds an use. But the airport is still growing and, in its finished form, will be to a 'central island' design: That is, all offices, han gara and public buildings will be in the centre of the field, servicing bays being outside the administrative bulid- ings of each airline. All traffic from the outside to the central area will be through tunnela passing under the runways of the airfield. Concreting of one of these tun- nois now gode on.

NEW VERTICAL SPINDLE GEAR PUMPS IN UK

plenum The new sorios of VRP vertical spindle Rotofoil top, end and back panels.

gear pumps produced by the Hamworthy The plenum section may be assembled

Engineering Co., Ltd., of Poola, have boon so that the dis- charge grill is elther in front or developed particularly for forced lubrication, Icar of unit.

piston cooling, and diesel and furnace fuel- oil transfor duties. They fulfil the require- ments of the principal marine underwriters, of the outstanding features of these new pumps is the accessibility of all components so that a pump can be stripped for examina- tion within a few minutes and re-erected in much the same time.

In addition, "end discharge grilis" are available, which

are Interchangeable with standard and panels. These end discharge grills are sold separately (one to One

package), and, when put in place of the plenum end panels, the plenum end panels are dls. carded. The "front discharge pri" is also available, in cose it be desirable to stail grills both front and back.

The

from

this anco

are

rules for tankers

The recent publication of a completely revised edition of Petroleum Lloyd's Rules for Tankers has a special signifi - cance from two points of view,] Not only are these Rules of) great technical interest, but they also represent the first unified Rules for Hull Con- struction issued by Lloyd's Register of Shipping united with the Register.

British Corporation

They follow, after an interval of one year, Lloyd's revised Rules for Cargo and Passenger Ships,

The first Rules for Oll Tankors were published in 1909, and in 1925 a thorough revision was made. The earliest Rules ap- plied to the system of construc- tion universally adopted at the framed time, the transversely ship, whlie those which followed were related to the longitudinal | system of construction commonly known as the Isherwood System. In the interval which has elapsed since those days impor- tant advancer have made in both the design of oil tankers and the technique of construction.

Old design replaced

The tanker with two longitu- dinal bulkheads has now almost older completely replaced the

design in which. summer tanks and a centro Line longitudinal bulkhead were fitted, and the system of framing has tended to become standard" in two forms : completely longitudinally framed system, and the combined system having longitudinally framed bottom and decks and vertically framed sides.

tho

The revised Rules are based on the Society's recent practice and experience with tankers of these types. Welding has assumed an ever increasing Importance, and the now Rules refer basically to this form of construction; at the same time requirements are given for riveted "connections,

The method used for tabulating scantlings la similar to that which has been adopted in the revised Cargo Ship Rules; the familiar Lloyd's Numerals

have been replaced by the princi pal dimensions of the slip and the drought as parameters. Ex- perlence with the 20 of the Cargo Ship Rules has confirmed the expectation that this oli sys- tems and for the oil fuel burning

Summary

emor-

main frame is of fabri+fon spindles of three per cent. the "plenum rea, cated

steel or Finally,

cast iron, and nickel alloy steel which panel" may also be bought so- forms a rigid attachment be- case-hardened and ground. parately, to replace the front tween the pump unit and the discharge grill (with which it is driving motor

Each spindle runs directly on installation added more compll- completely interchangeable), if desired to discharge through the livery branches, and takes

It carries the suction, and de- two needle roller bearings. The cations to the. piping arrange- the weight of each rotor and spindle ments. ends only.

weight of any unsupported pipe- is taken by a ball thrust bearing, The outside of units is finished work to eliminate the possibility which also locates the rotor to An attractive light grey Cham of distortion and misalignment provide the requisite axial clear- mered finish) plastie backed en of the pump unit

"The following is ̋n brief aum- from ́amel, and will harmonise with sources.

The pump unit is thus a self-mary of the major alterations of most

Interior decorating schemes,

the Revised Rules for pumping a fact The suction and delivery con- contained entity,

which However, it can be repainted in

and piping: the field if the customer desires nections between the main frame enables it to be coupled to the

and the

Bilge Pumping This modern a different colour.

unit form punip

the driving motor by means of a

The amended roquirements for the bonded baked enamel 18 mar-and pump seating, on which location flexible coupling of

disc rubber scratch-resistant, may be washed, is effected by dowel pins. By

pattern.

the blige drainage of machinery Other types

spaces relate mainly to and is easily dusted. All steel breaking this single flat Joint and of flexible couplings may be at-gency blige suctions which "per-

bolta removing the parts are bonderlaed and coated,

the ted if desired. both inside and out, with highly can be detached complete from fitted with a lantern ring con- main bilge system.

flexible coupling, the pump unit The deep stuffing box Isovent of a break-down of the resistant primors, baked on.

The cabinet is thermally and the main frame without disfur- nected to the pump suction 80 Air and Overflow Pipes and acoustically insulated, by up- bing the pipe connections,

that the gland in under negli-

Sounding Pipes to-date insulating materials,

Split casing

gible pressure. Ang gland leak. Minimum thicknesses have motor-compressor assembly

The casing is

age is collected in a hundish fitted been given for these pipes and rubber and spring-mounted, and cast iron, and is split in the with a drain cock or plug, as re- the sizes of the air and overflow Bexible, metallic tubing is used, plane of the rotors and spindles.

quired,

pipes have been Increased In The to prevent any vibration

spring-loaded

the risk of by-pass order to diminish being transmitted to the cabinet The halves are located by means

valve

is housed in the main damage to the tanks when they four fitted bolts, the metal-to- or to the floor.

Emeient oversize alters of the metal joint between the halves frame and protects pump, motor, sro overflowing

and pipeline equipment

Oil Fuel Burning Installation against are being hand-scraped

to overload. This is of the balanced The main alterations relate to used. These are standard sizes, machining the rotor bars. The piston type in which the fuld increased precautions against universally available, The SCY removal of the outer half exposes load on the ported valve is outbreaks of fire pit

the rotors for Inspection.

The rotors are formed from pressure on an opposing piston.

balanced partially by delivery Nitralloy blanks and are mounted -The pumps handle olla.

-or wide- ly different characteristics

viscous, throw-away

type

Osram

from

THE WONDERFUL

LAMP

FILAMENT AND

FLUORESCENT LAMPS

MADE IN ENGLAND

¿C PRODUCT

THE BRITISH GENERAL ELECTRIC CO. LTD.

of close-grained

prior

mit of continued drainage in the

⠀⠀ Pressure. Pipes, The existing Rules for steel pipes have been completely re- vised to test modern conditions of temperature and pressure and,

950. uses. two 16" x 20" x 1" pressures up to 100 psi, and the hydraulic, test pressures for Alters, the SC 350 two 20′′ x can be adapted to operate at 25x-1" alters. These are inter greater pressures or with duid various pipe systems have been changeable with standard "clean- necessitating the employment of Fire Extinguishing System

| simplified." able" type filters, available in special materials or modified the fold, if desired.

Revised Rules are "at" present: forms of construction. “

under consideration,

AN ENGINE RUSTED INSIDE? A TYPEWRITER CORRODED? A SAFE. YOU CAN'T USE? A MACHINE RUSTED,

SANDED, CORRODED?

DERUSTIT

now

DERUSTÍF HONGKONG) LTD

Sure, you've got space

to install a wonderful bath like this

THE NEO-ANGle Bath→

Consult us on all-

Standard

PLUMBING FIXTURES

Agents:

This beautifal new bath actually provides reenter butllcar

yal is into shorter wall longtka Choses thart convanilonal, baths, from aleaming whlis and many colours, la "muted other 'bathroom,

ANDERSEN, MEYER & COMPANY, LTD.

DAVID HOUSE

TEL: 28091.

GRANT

IMMEDIATE DELIVERY

FROM STOCK -

HOPE'S

HOT-DIP GALVANIZED

WINDOWS

JARDINE ENGINEERING CORPORATION LTD. 14-16 Pedder St., Hong Kong. Telephone 30311- Local Representative: Mr. E. C. WAKELING

YOU CAN CUT

YOUR V-BELT INVENTORY

with

VEELINK

reels replace up

316 sizes of endless

V-BELTS

KIU FOONG TRADING CO