ilp archive : journals
public lighting no. 9 vol. 3
- Editorial p3
- The President
- The President, Mr. C. I. Winstone, has made a good recovery after a series illness.
- And Now Bournemouth p3
- The annual conference will be held in Bournemouth on the 5th-8th September. It is hoped to break
all previous records for attendance.
- The Exhibition p3
- The Association will have the use of the Town Hall for the conference, and an adjacent hall for
- Jones vs. Sawyer p3
- Their disagreement, which occurred during the previous year's conference, has now been resolved.
"Whilst free discussion is welcomed at the APLE Conferences
when made in a spirit of friendly rivalry, it is to be hoped that
on no future occasion will it be found necessary for either side
to take exception to statements made in the Conference Hall." This was discussed in the
section High Pressure Gas Tests (see below).
- Road Illuminants p3
- Evidence continues to accumulate from car drivers and
pedestrians of the deleterious effect owing to the
indiscriminate placing of illuminated display signs in
juxaposition with authorised signal lights. This has been
covered before in Public Lighting before and once again attention
is drawn to those red and green lights on the efficiency of
street lighting. In an article Mr. W. J. A. Butterfield
suggests that some competent body should consider the question
of coordination of private outdoor and public lighting. It
is hoped that a committee, set up by the Home Secretary to
consider an amendment of the law relating to the regulation
of advertisments, might take this vital question into
- Local Authorities' Burden p4
- The Association Of Municipal Corporations have expressed the view that the
recently published Ministry Of Transport Departmental Report will place a heavy
financial burden on local authorities. Therefore the Association have asked
the Minister Of Transport to defer coming to any decision on the report until
they've had an opportunity to present their views to him. The Association
have sought estimates from local authorities as to the cost of bringing up the
lighting of (a) classified roads and (b) other roads to the standard recommented
by the Ministry Of Transport.
- County Roads - Road Lighting In Berkshire p4
- By Section 23 of the Road Traffic Act, 1934, a county council is empowered to light
rowads if the appropriate lighting authority has failed to provide such illumination
or better illumination s the county council may require. A lighting authority which,
by request of the county council provides lighting, or better illumination, are entitled
to receive from the county council the amount raised. At the present time, none of the
county roads in Berkshire are lit by the County Council. In some cases Parish Councils,
has Lighting Authorities, are considering schemes for the lighting of roads in their
areas and the question of grants towards the costs has been made. At present, Government
grants are not available towards the cost of lighting the roads, other than trunk roads.
However the County Councils' Association have made representations to the Ministry Of
Transport urging that grands in aid of approved expenditure upon the lighting of county
roads should be made to county councils or to the road lighting authorities. The
County Finance Committee considered that the cost of lightign country roads should be
eligible for grants and have passed the following resolution:
That Parliament, having seen fit to confer on highway authorities the power to provide for
the lighting of roads under their control and of trunk roads, the Berkshire County Council
consider it illogical that financial aid should be given to the lighting of trunk roads
only and they urge the County Councils' Association to take such further steps as they
may think fit to scure the discontinuance of the present anomalous position with a view
to the cost of ligthing roads receiving adequate grant from national funds.
- Modern Lighting In The Highlands p4
- The road leading to Tomintoul, the highest village in Scotland, has been lit
with GEC lighting columns equipped with small Oxford lanterns
burning OSIRA electic discharge lamps.
- APLE: Conference, APLE: Organisation,
Lighting: Legal, Lighting: Funding and
- The Henley Sharborn Relay p5
- Detailed account of this realy. The unique and outstanding feature is that the operation
coils, except during the moment of operation, are dead at all times. Engineers interested
in street lighting systems will welcome the cascade arrangement Relay, as it
can be applied to new developments or for extensions to existing systems.
- Lighting: Control
- A New Street Lighting Specification by D. Sandiman p7
- Public Lighting Engineers would welcome a specification defining
public lighting installations and indicating clearly how one installation
compares with another, and also arranged to show in what direction
improvements should be made. It is signficant that the MOT has had to
take the matter in hand and issue recommendations which are entirely independent
to B.S.S. 307. Delay in the adoption of a revised specification is due
to the conflicting opinions of memebrs of committees and also to an inspired
inertia on the part of certain interests.
- Proposal: each classification consists of two parts. The numerator
is a measure of the adequacy of the number of lighting points - it is
the proportion of the ideal or recommended number of lighting points e.g.
7 would indicate an installation with only 70% of the idea number of lamps.
(It is calculated as: 10 x Recommended Spacing/Actual Spacing). While the
denominator specifies the mounting height and lumens of each point represented
by a capital and small letter. (These are in accordance with the "Lowest Recommend"
figures in Table II of B.S.S. 307.
- There would appear to be no advantage in departing from the spacings recommended
in B.S.S. 307 therefore a representative or average spacing of 100 feet has
been adopted. On curves, the lamps should be placed on the outside of the bend,
and on sharp curves it is desirable to reduce the 100 feet spacing. (A
experimental "spotting" device has been developed for curve spacing).
- Example One: In Edinburgh, the principal tram routes are lit by 500W lamps
spaced at 40 yards and mounted on tram poles at 23'6": this classification
would be 8/Dd.
- Example Two: The suburban bus routes are lit by means of 4-burner lamps
spaced at 25 yards and mounted at 13'. This specication would be 10/Gg.
- Example Three: Princes Street is lit by two 500W lamps on each central pole
spaced at 40 yards, or class 4/Dc.
|Classification||Lowest Mounting Height|
|a.||32/64||Two or more high powered lamps|
|b.||16/32||Two or more high powered lamps|
|c.||8/16||1000W GLS / 400W MA|
|d.||4/8||500W GLS / 250W MA / High pressure gas|
|e.||2/4||300W GLS / Large low-pressure suspension lamp|
|f.||1/2||200W GLS / Six mantles|
|g.||.5/1||100W GLS / Three mantles|
|h.||0/.5||60W GLS / Single mantle|
- Lighting: Specifications
- A Triumph For Low Pressure Gas Street Lighting p9
- A street lighting installation of exceptional interest has been erected for Holborn Borough Council
in Woburn Place, London, W.C., by The Gas Light And Coke Company. The installation was erected to the
specification and plans of Mr. J. E. Parr, A.M.Inst.C.E., the Borough Engineer and Surveyor. The
lamps are Keith Blackman Magnalux types which were first exhibited at the
A.P.L.E. Conference at Folkestone in September 1937. The installation comprises seven four-mantle lamps
on bracket arm columns giving 25' height to light source, while three double-arm columns each carrying two
three-mantle lamps have been fixed on refuges. The columns were supplied by the Bromford Tube Co., Ltd.
and the lamsp are carried on Keith Blackman raising and lowering gear. Ignition is by
means of Horstmann Comet igniters. The lamps are spaced approximately
90' apart, the road width being 48'. The lamps are fixed on 8' bracket arms giving 6' outreach beyond the
kerb and central sources are placed on the refuges. The output per 100' length of road exceeds 15,000 lumens
and the test point illumination averages slighty below .5 foot candles, the installation falling in
class "C" of the B.S.I. specification.
- Lighting: Installations
- High Pressure Gas Tests p10
- During the discussion on
Mr. Keith's paper at Folkestone during
the A.P.L.E. Conference, Mr. Jones of the Electric Lamp Manufacturers' Association
had tested some high pressure gas street lamps by the National Physical Laboratory
and the results were far below those usually claimed by the gas industry. After being
challenged, Mr. Jones co-operated with the makers and the
Gas Light And Coke Company and further tests were carried out by
the National Physical Laboratory. Mr. Jones admits
that when he made his statement, he had overlooked published data relative to the
light ouput of 1-light and 2-light higher pressure gas lanterns presented to the
APLE in 1932. Retests confirmed the gas manufacturers' claims.
- Lighting: Levels
- St. Pancras Street Lighting p10
- The Metropolitan Borough of St. Pancras has installed Siemens
400W Sieray lamps in Regent-Sieray lanterns for the lighting
of Hampstead Road.
- Lighting: Installations
- Morden's New Street Lighting p10
- The new mercury electric discharge street lighting installation on st. Helier
Avenue, Morden, was inaugurated on the evening of Wednesday, January 19th by
Councillor A. H. Gray, Chairman of the Highways Committee of Merton and Morden
Urban District Council. The Chairman of the council stated that the authority
had for some time felt the necessity for improving the existing lighting on
St. Helier Avenue, a doulbe carriageway thoroughfare approximately one mile long
extending from the Rosehill Corner at the north end of the Sutton Bypass to the
roundabout at the corner of Morden Hall Road. The council waiting for the Final Report
from the MOT before going ahead. The installation had been carried out by the
County Of London Electric Supply Co., Ltd., in association with BTH.
47 lamp standards were provided in three rows, at each kerb side, with an overhang
of 4'6" and in the centre reservation by a single row of light sources mounted
in cradle type brackets. The average spacing on each carriageway is 150' and there
is a mounting height of 25'. This arrangement has resulted in each carriageway
being lighted independently, providing a staggered arrangement. On the bend in
the road approaching Morden Hall Road, there are no lamps on the inside of the
curve, two rows of lamps only being used. All the lamps are controlled by time
switches and the lanterns are BTH Mercra H provided
with 400W mercury electric discharge lamps burning horizontally, magnetic
reflection is incorporated in the lantern. Mr. W. P. Robinson, Surveyor to Surrey
County Council, commended the Merton and Morden for its enterprise in lighting
this double carriageway in an efficient manner.
- Lighting: Installations
- APLE Conference, 1938 p11
- Preliminary details of the forthcoming conference in Bournemouth.
- APLE: Conference
- A Clever Design In Concrete Columns p12
- The promenade at Morecambe has been relit by 75 GEC lanterns
fitted with 500W Osram lamps. These are suspended from ornamental
concrete columns and brackets manufactured by Concrete Utilities.
- Lighting: Installations
- Street Lighting Control - A Light Actuated Installation At Sheffield p12
- The basis of the light-actuated control is a selenum cell whose resistance to
electricity varies according to the light intenstiy which is allowed to reach it, and
by means of an appropiate circuit is made to operate relays and contractors of any
load. An essential factor in installing this type of apparatus is the position of the
bridge in its weatherproof housing, in order that the light from the lamps controlled
or that of any surrounding illumination does not affect it. The installation illustrated
are the lighting of bollards at an intersection in Sheffield with units made by
Radiovisor Parent Ltd. to the order of
Mr. J. F. Colquhoun. Also mentioned was the installation at
Woolwich in which the whole of the borough was controled from central points
by cascades of contactors which are operated by light actuated apparatus.
- Lighting: Control, Lighting: Installations
- Road Illumination by L. J. Davies, M.A., B.Sc. and G. S. Lucas, M.I.E.E. p17
- Full reproduction of the paper
given at a joint meeting of Engineering and Technical
Societies organised by the Institution of Automobile Engineers and held at the
Instutition of Civil Engineers, Westminster on the 1st March 1938. Includes the discussion
where points such as: street kerbs should afford a really effective boudnary
between footway and carriageway; the imperative need for co-ordination of
private outdoor lighting with public lighting (e.g. no private red or green
lights should be tolerated in the line of vision of a controlled crossing); and
how the number of posts or columns supporting signal lights, beacons, tram or
bus stop signs etc., have increased so enormously in recent times that
they now very seriously obstrut the footway; how display signs and certain
shop front lights sometimes interfere with the efficiency of public street
- Lighting: Colour, Lighting: Distribution,
Lighting: Levels, Lighting: Specifications and
- Automatic Ignition Devices Seen At The B.I.F. p22
- The Horstmann Gear Co., Ltd. of Bath
exhibited a wide range of Newbridge Clock Controllers and Comet Automatic Ignition Devices
for public lighting. The chief feature of the exhibit was the wide variety of lamps
shown from Sugg,
Foster And Pullen,
Keith Blackman and
Parkinson. Last year (1937) the
outstanding success of the Mark III Comet for square lanterns and
Type 15/3A/COM Controller (which embodies the Controller and Comet in
a weatherproof case) for suspension lamps led to many requests from Public Lighting
Engineers, gas undertakings, and lamp manufacturers for a Comet suitable
for suspension lamps which were already clock controlled. Therefore a new Comet
in a weatherproof case for suspension and U bracket lamps is expected. The
Newbridge Service Pressure Governor was also shown (although it
wasn't often encountered in actual distribution practice).
- Lighting: Control, Lighting: Manufacturers
- The "Avil" Sideway Lamp p22
- The Avil Sideway lamp has been recently introducd by
Foster And Pullen Ltd. for Group B
roads under the recommendations of the MOT's Final Report. Supplied in sizes from
one mantle to four mantles, the lamp is claimed to be the best illumination yet
offered for such sizes. The "Sideway" is a globe unit for axial or non-axial lighting,
fitted as standard with mirror glass reflectors above the light source and with provision
for a Staybright steel faceted back reflector or Holophane
dish reflector. The lamp is easily accessible for cleaning, the globe of standard
size to facilitate maintenance, and for pillar fixing the bracket carrying the
lamp is in effect an extension piece available with or without ladder bars.
ignition may be incorporated in this unit and to meet local conditions an
ordinary by-pass cock operation is available. The lamp is available also for
bracket fixing. For pillar fixing the standard length of bracket gives a height
to light source of 4' above the spigot; the bracket dimension can be varied to requirements.
- In the case of Group A roads, the Avil, Alpha and
Arcturus lamps in the larger sizes will give illumination recommended
by the Final Report.
- Lighting: Control, Lighting: Luminaires, Lighting: Manufacturers
- Looking Back by Thos. G. Bransford p23
- Recollections of a career in the lighting industry including working at
Sugg, Johnson And Phillips, Islington and finally as
the Public Lighting Superintendent of Stepney.
- Lighting: History, Lighting: Personnel
- Street Lighting Notes p24, p25
- Brief description of the installations at
Accrington, Battersea, Bath, Beeston, Blackburn, Bolton, Bridlington, Bromley, Burnley,
Camberwell, Canterbury, Clitheroe, Cupar, Dumfries, East Ham, Falkirk, Finchley,
Hebden Royd, Jarrow, Leeds, Liverpool, Manchester, Plymouth, Bishop Auckland, Blackburn,
Chesterfield, Coalville, Lincoln, Malvern, Middlesbrough, Newcastle-Upon-Tyne, Salford,
Warwich and Wigan.
- Lighting: Installations
British Commercial Gas Association,
William Sugg And Co., Ltd.,
Walter Slingsby and Co., Ltd.,
Siemens Electric Lamps And Supplies Ltd.,
The British Thomson-Houston Co. Ltd.,
British Sangamo Company Ltd.,
Philips Lamps Ltd.,
Gas Meter Company,
Radiovisor Parent Ltd.,
Foster And Pullen Ltd.,
REVO Electric Co., Ltd.,
The Horstmann Gear Co., Ltd.,
Concrete Utilities Co., Ltd.,
James Keith And Blackman Co., Ltd.,
British Electrical Development Association, Inc and
The General Electric Co., Ltd.