As specified for each page

London & Southport Lanterns & 'Supervia' Mantle.
(This is an element of 'Lighting - Street Lamps')

The London Lamp

12 Lt. London Lamp illustrating effect of mirror reflectors

End Section showing arrangement for adjusting reflectors

Literature for the London Lamp with Extended Canopy (above)

12 Lt Model 3020 with 'Modern Streamlined' Casing

6 Lt London Lamp with Extended Canopy

10 Lt London Lamp London Bridge 25 ft Mounting, 120 ft spacing

London Lamps in N4 and, on the right, Lighting the Southend Arterial Road

Centrally Suspended London Lamps on the Thames Embankment and on Concrete Columns in W2

The lamps both above and below all have raising and lowering gear which utilised a gas connection which rotated up a spiral to unlock and allow the lamp to be lowered to the ground. In the case of the centrally suspended models, the lamp could be drawn along the suspension cable to one side before being unlocked and lowered.

Twin 12 Lt. London Lamps clearly showing the Raising and Lowering Gear

12 Lt. London Lamp fitted with 1 Lt. ARP (Air raid precaution) Wartime Fitting to comply with Emergency Regulations.

Picture of London Bridge during Installation of 10 Lt. London Lamps
about 1948

Station Road, South Harrow circa 1952
From the late Dennis Edwards' collection by kind permission of Mrs P Edwards 2011.

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The Single and Double Southport Lamps

The 'Southport' Lamp, whilst following the general shape of the London Lamp achieved its performance by the use of refracting panels made by Holophane.

The 'Double Unit Southport' Lamp clearly showing
the Holophone refracting panels

Development drawing of the Group 'B' Southport Lamp

Comparison between the double (in the middle) and single unit Southport's. The section drawings also illustrate the way in which the light is refracted by the Holophane panels to provide the 'even road surface brightness and good visibility without excessive glare' claimed in the leaflet above. On the left, the diagram shows how the circulation of the incoming air cools the panels and also the relative simplicity of the overall construction by comparison with the cross section of the London Lamp at the top of this page.

Group 'B' Southport in Hyde Park about 1950

Group 'B' Southport in Buckingham Palace Road on left and Holborn, 1950

UNDER CONTINUOUS DEVELOPMENT - PLEASE TRY AGAIN LATER

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