1950-04-27 — Page 8

Pāze 8 VIN!

WORTHINGTON

THE CHINA MAIL, THURSDAY, APRIL 27, - 1980, TAD |

`the biggest name in. the pump industry.

BLUE BRUTE

PORTABLE SELF-PRIMING

CENTRIFUGAL PUMPS

Stocks & Available

Agents!

ANDERSEN, MEYER & COMPANY, LTD.

DAVID HOUSE

316 sizes

ENDLESS V-BELTS

CAN BE

TEL: 29091.

GRANT

Replaced with only 4 sizes of Verlink

As many as 310 sizes of industrial and fractional endless V-belts can be replaced with only four reels of VeeLink, the link V-belt. From these handy reels required belt lengths Delt are quickly uncoupled, made endless and installed. replacements for any typo drive are always on hand Rapid turnover of VeeLink on reels eliminates spare belt deterior- Stock allon. Complex, costly belt inventories, are ended. records are simplified. Standard reels hold 100 feet, save storage space.

VeeLink goes on quickly and easily...lowers machine down-time. On drive with outboard hearings, it is installed machine. without moving the motor er dismantling the Savings on drives of this type have been estimated to run as high as 9/10 the cost of Installing any other V-belt,.

VEELINK

THE JAN

V-BELT

VeeLink -known throughout the United States has proven itself in service on thousands upon thou- sands of drives. Wherever it is used higher levels of power trans- mission efficiency are attained.

Adja tilih da ray length

Ag+h!! :, Or N

Tested Proved" Adopted

by Industry

Stocks Of All Sizes Available *

Sole Agents-KIU FOONG TRADING CO.

26; Connaught Road, C.

Ideal for

FACTORIES AND. GODOWN USE

For Further Particulars

Appl

Tel. 28403

ENGINEERING PAGE

FOR BETTER VENTILATION

There is a vast dif- ference between the von- tilating capacity of Woods Roof Extractor Unit and that of the or- dinary roof cowl. The Woods Unit gives guaran- teed air displacement. Its superiority can be readily appreciated when the ro- lative effectiveness natural and mechanical draught vontilation compared.

of

is

It must be remembered that the ventilating capacity of the ordinary roof cowl is dependent on natural causes and ls olien at variance with ventilating require--

ments.

Air extraction through a pa- tural roof cowl is brought about primarily by the fact that the air inside a building is usually warmer and therefore lighter in weight than the outside atmos- phere.

alr inovement through the follows that in

roof

A Scottish Biscuit Factory ventilated by a No. 48 Roof Extractor Unit.

Consequently the inside air rises and passes out through any apertures provided in the roof, clent to cause serious heat loss. have flanges of ample width for Totally enclosed and liberally to be replaced by cooler and

bolting to roof members. To ta-rated, the motors are insulated to Infrequent servicing denser ale entering at a lower

cilitate waterproofing in erection, withstand exacting conditions of The units require little aften- the bases are fitted with a flash-heat and humidity. some level. In

Standard designs wind

tion. Continuous running with velocity also assists xtraction.

of their ing skirt under which the flashing motors are suitable for continu- one The less different here la be little servicing is

is tucked, as shown above on the ous operation in ambient tem- tween the temper аге of the features. Under normal condition left.

peratures averaging 105 deg. F inside and outside ir, the less the only attention required is re-

In the event of a fan requiring an with

peak temperatures up to 112 be lubrication once in 12 months. will the

The ventilation of buildings in overhaul (unilkely in normal cir- deg. F., or down to 54 deg. F. natural cowl. It

cumstances) It can be withdrawnt To minimise the possibility of very exposed positions by means hot. windless

from the ventilator. Stand-overheating, the motors are de- easily of wall-mounted exhaust fans may weather, when ventilation is most involve dimculties owing to the and models of the two smallest signed for a temperature rise of

cowl

18, have the only 65 deg. F., as against the rise red, the natural

units, Nos. 15 and caused restriction of fan output to be ineffective. Con-

fan motor positioned below the of 90 deg. F. permitted by the Ddverse wind pressures, ventilater diaphragm for servicing British Standard specification for versely its extraction capacity is by The right answer to such con- vent

from inside the building. In the totally enclosed machines. In wintry weather when ditions is the Roof Extractor Unit. greatest

All motors are fitted with ball minimum air changes are needed. The performance of the unit will farger units the fan motor is

ventilator bearings and are tapped for con- Woods Roof Extractor Unit,

poaltioned inside the ef actually be improved by strong cowl and a removable inspection duit entry. Incorporates an exhaust fan which pro-winds, partly because of the ne- plate is provided on the top of the

In all units except No. 48 the vides effective ventilation at gative pressure above the roof

cowl for servicing from the rool. fans are "floated" on rubber by and velocity, guaranteed rate and gives posi

Robustly constructed from means of Woods patent Realllent tive control of air changes. Yet partly by the additional extrac

heavy gauge mild steel with Suspension, as shown above. This the initial cost of this unit com- tion effect produced by wind welded seams, the units are finish feature

contributes to quiet extractored with a heavy coat of anti-rust operation. The extremities of the pares very favourably with that blowing through the

red oxide primer. Special pro- fan mounting arms are embedded of natural cowls and it costs cowl.

cushions tective finishes can be provided in soft rubber

which little to operate.

at an extra price.

Isolate the fan from Ka orifico Woods Root Extractor Unit in- The extraction fans incorporat-plate and absorb any fan noise or corporates a cowl of high aer-ed in the units are standard vibration.

The rubber cushions

provide extraction with a high air deliveries in relation

there will be a small amount of supplied for flat roofs, roof slopes, completely in the Woods of Col-

The bases chester factories. natural ventilation, but not sum-or ridge, mounting.

how

Low running cost

caused by

wind

Construction

Relatively little power is con-odynamic emelency, designed for Woods propeller fans, givingctive sound-damping because }

sumed by, Woods Roof Extractor mechanical Units. Take for example the ven- minimum restriction of fan per- tilation of an Industrial building formance.

140 ft. x 150 ft. x 25 ft. average Alternative types of bases are height. If six air changes an hour are to be provided, the total air movement required for summer ventilation will be 3,150,000 cu. ft. per hour, or 52,500 c.f.m. (cu.) ft, per minute)..

This rate of air movement can be obtained approximately with eight No. 30a Roof Extractor Units, each extracting 6520 c.f.m., and the total power consumption will be only of the eight units

BIF preview:

to power consumption. The driv- they are held in place by metal Ing motors-designed specifically caps without compression and are for fan duties are manufactured thus fully resilient.

New gadgets in hardware

Those goods at the British In- dustries Fair which come under 3 kilowatts, or units, of elec- the broad description of "hard- ware" suffer under the disability tricity per hour.

Vemulation by Woods Roof Ex- that they are presale-articles, tractor Units can be regulated to long established in use, excellent suit the weather. The perfor- ly designed for their mance of a number of the units purposes and not susceptible of

BOveral

can be controlled by means of much useful churous that only board. It is all in one piece. The often makes the difference be-

They are so

thing that la used

aro

aluminium ware in great variety,, barrels. The latter has been a woven wire objects, locks and recent development, and special containers are now being made padlocks-so the list expands:

for chemicals, for which "alumi- Ingenious devices There will be some ingenious nium-le-found-to-be-especially devices. For instance, ameone

suitable.

Wide range made a folding kitchen chair- cum-set-of-steps- -cum-ironing- In these days when the finish fan speed regulation, which en-

housewife Just turns it inside out tween successful trading and fal- ables the rate of air movement to a catalogue can do justice to or upside down and she can rest lure, the wide range of paints, be reduced in cool weather or in- them. They comprehend every-or works as she pleases. creased in hot weather.

enamels, varnishes, and lacquers in the home, All those little gadgets which has air much that enters into office work, make coffee grinding. vegetable

an importance of its own, Alternatively control of

Brassware will be much in house changes, and of heat loss, can be the hand tools which the effected by switching off some or holder, the land worker in many ing less tedious or unpleasant will staple

preparation, mincing, and cleans-dence. It of Birmingham's

products, ao that

hat local firms ail of the units in cold weather. countries and the industrial be found on these stands. For avall themselves freely of the When the units are switched off operator use, and most of these more extensive needs there will facilities offered by the Fair for

of standard design.

be the electric potato peeler..

Bringing

their candlesticks, log There is an astonishing num Vitreous enamelled hollow-ware boxes, the plaques which have be ber of different types of spade, for surgical and hospital require come so popular in recent years, but fundamentally a spade re-ments, for butchers, canteens, jugs, and reproductions of horse mains a spade.

hotels, and bar' fitting will oc-1 and other brasses before thé Galvanised ** and

enamelled cupy another stand. hollow-ware will bulk largely

buyers from all over the world. Smokers

stands of the non- A great deal of skill has gone to Oll heaters and cookers and lamps topple variety, hearth furniture the making of much of this ware, will again make an appeal for of attractive modern use in out-of-the-way places. ornamental

| styles, which is both useful and orna- mirrors,

and, of mental, for grown-ups Lakes course, nails and screws and nuts than ordinary interest will "Meccano" the form of lengths of speciat and bolts, and the multifarious slotted angles which can be bolt-small wares in metal, wood, and one devoted single and dóuble ed together to make fences, small plastics with which everyone is barrel sporting guns, revolvers, bulldings, work benches, and familiar will be on show.

alr

Crifies, and ¦ humane · cattle many other serviceable things. Aluminium enters into many of killers. Another Birmingham la- Pressure cookers will reappear, these goods. There are lightdustry, the weapons will show Kitchen cabinets, sweepers, lawn weight ladders of this alloy, road the highest quality of workman- mowers, bathroom. fittings, studs, conduit fittings, and beer ship.

GE.C

ROOF EXTRACTOR

FANS

THE BRITISH GENERAL ELECTRIC CO., LTD.

AN ENGINE-RUSTED INSIDE?

TYPEWRITER CORRODED? SAFE YOU CAN'T. USE?

MACHINE RUSTED," SANDED, CORRODED?

A stand which will have more

DERUSTIE

nder the Electro » chemical:

Quick

the news plant" now.

Coll

DERUSTIT (HONGKONG LTD.

be

ALL AROUND THE WORLD

you'll find-

SLOAN

FLUSH VALVES

There are more Sloan Flush

Valves sold than all other

makes combined.

ANDERSEN, MEYER & COMPANY, LTD.

DAVID HOUSE

IGRANT

Agenta

TEL: 28091.

SELF CONTAINED PORTABLE ROAD BREAKERS & ROCK DRILLS

● Petrol Engine Driven

Low Cost

Easily Handled Economical

Sole Agents for

Multi Purpose Duty High Speed Operation

Robust Construction

WARSOP POWER TOOLS LTD.,

ARNHOLD & CO., LTD.

Engineers & Contraptors Holland House

SHORT OF

GODOWN SPACE?

USE A

Telescopic

YALE WORKSAVER

1078

Electric Lift Truck.

DISTRIBUTORS:

¿YU TUNG

LTD.