Plan of the first floor, showing the
Council
Chamber
the worth-east
end of the block.
and
心
the
CONNEL
to the
-
isting Government
Offices
to The
OFFICES
•
ELEGIS
SC.C
SMALL COMMIT.
ROOM
Ex.
COUNCIL COMMITTEE
ROOM
WAITING
LOBBY
CLERK
TYPIST
2 CC
LIFT
COUNCIL'S REGISTRY
DCC
ROOM
MEMBERS
GOVERNOR
ETHE
WAITING
south-east.
ed in the temporary stone buildings which have to be pulled down make way for the final block of Gov- ernment offices.
to
EXISTING
GOVT.
OFFICES
On the top two floors. the fifth
یک
and the sixth, will be located the yet been finally decided.
Lifts: Otis Elevator Co.
Air-Conditioning:
gineering Corp.
American En-
Electrical Work: Winsome Co.
"Atlas" Fluorescent Lighting Fit-
offices of the Colonial Secretariat. Contractors: Paul Y. Construction tings: The Jardine Engineering Corp.. the arrangement of which has not Co.
Ltd.
Lighting the New Examination
Halls of Edinburgh University
The lighting in the new examination hal's of Edinburgh University provides an excellent example of the value of coopera- tion between architect, consulting engineer and lighting engineer from the initial plan- ning stages of an installation. Tungsten light sources in recessed fittings provide the basis of various exciting ceiling pat terns. In one examination hall for example the light sources form the centres of 24 wide circular recesses set in an open lattice of straight diagonal mouldings. In another they are set in an undulating ceiling.
In the art gallery room, which is on the top floor of the building, they are arranged in a false ceiling in two pairs of lines flanking six wide circular laylights. The aylights, which are covered by polystyrene louvres, admit natural light in the day-
MJACKETS
GECORAT
(5/300W LAND
TAMTH
EL PORCELAIN LAMPSON DEL
LOCUS OF, SHE VON "APPON SEAR, POČUJ
Section through G.E.C. recessed tungsten fitting as used in the new Examination Halls of Edinburgh University. The thumbscrew enables the lampholder to be adjusted from underneath so that lump is properly positioned within the Gecoray reflector for accurate focussing.
t
time. Artificial light is provided by four 150W floodlights recessed into the walls of the laylight wells. Another interesting feature of the art gallery room is the light- ing of the walls on which paintings are hung. In the daytime the walls are lit by daylight from obliquely arranged skylights. At night they are lit by a row of tungsten light sources mounted in the same plane as the skylights and focussed on the walls.
The recessed lighting fittings in all these rooms, as well as in the theatre in the basement. were designed by The General Electric Co., Ltd. so that they could be focussed, serviced and have lamps replaced entirely from underneath. It will even be possible, when this becomes necessary, to rewire them from below. essentially of a Gecoray reflector in a casing covered by a heat-resisting sand- blasted glass dish which diffuses the light. The larger fittings house 300W Osram lamps and the smaller fittings 200W Osram !amps.
They consist
The Gecoray reflector employs a scien- tifically designed system of flutings in silvered glass. The fluting provides eveil illumination without striation, while it eliminates entirely any loss of light through trapping in the glass. The maximum be- nefit is only obtained from the rellector when the lamp is accurately positioned inside it. Two thumbscrews on the lower rim of each fitting enable the lampholder to be easily adjusted upwards or down- wards until the focussing is correct.
The architects for the new examination halls were Rowand, Anderson, Kininmonth and Paul, the consulting engineers Mitchell, Day and Lackie, and the electrical con- tractors William Allan Smith and Co., Ltd.
The lighting fittings described in this article are products of The General Elec- tric Co., Ltd. of England, who are repre- sented in Hong Kong by their subsidiary, The British General Electric Co., Ltd.
46
G.E.C. lighting in the entrance hall to the new Examination Halls of Edinburgh University, with an examination hall in the background.
An interesting ceiling pattern has been devised round the G.E.C. lighting fit- tings on this floor of the new Examina- tion Halls of Edinburgh University.
In the art gaitery room of the Examina- tion Halls of Edinburgh University, lines of G.E.C. recessed tungsten fittings flank laylights in the walls of which four G.E.C. 150WP floodlights are recessed.