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London WC2

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The firm are exhibiting their Liverpool type fittings which use the new "Metrovick" horizontal Mercury lamps which don't require magnetic control of the arc. The installation uses 400W units spaced at 90' and 135' apart in staggered formation, mounted on 10' brackets at 25' from the ground. It is noticeable as it's almost entirely free from glare whilst giving good uniform kerb-to-kerb illumination of the road surface. They also note that a lantern of refractor type (the Kingsway) should be available for demonstration. - APLE Conference Programme 1937

Their 1938 exhibition featured lanterns in curtained cabinets to avoid glare! Representative lanterns featured include the Kingsway and Liverpool lantern - the latter being extensively used in Lancashire. They have also developed a new single-piece refractor plate mercury lantern and a refractor plate sodium lantern for the first time. Scale models of two concrete and two steel street lighting poles were also shown. - Public Lighting #10, 1938 and APLE Conference Programme 1938

Two adverts were inserted in the 1939 programme: one for the new Trafford lantern and one for the MetroVick Ripplay system. - APLE Conference Programme 1939

The firm return after the war with a selection of pre-war lanterns which have small, but valuable, modifications. - Public Lighting #37, 1945

Only the Trafford, Popular and Ealing lanterns were displayed at the conference, but the programme included lengthy descriptions of the Trafford, Gower, Urmston, Poplar, Ealing and Aldwych lanterns. - APLE Conference Programme 1945

A wide range of lanterns were available for inspection. For Group "A" roads: Trafford, Gower, Urmston and Polar; for Group "B" roads: Ealing and Welwyn. - APLE Conference Programme 1946

The "Ripplay" centralised control system allows an electricity supply authority can control off-peak loads. This involves an audio-frequency generating set at the control centre and special relays or switches at each of the remote points where a switching operation is performed. The generator unit injects into the power supply system a series of pre-arranged impulses of a particular audio-frequency to which only the appropriately tuned relays or switches will respond. Thus the load circuit can be opened or closed by the operator at the remote control point. In its improved form, the "Ripplay" system allocates a single audio-frequency to each network, and discrimination by sensitive relays of the vibrating reed pattern is provided by a method of low frequency pulsing that givs twelve switching channels. An advantage of the single audio-frequency is that it enables the injection plant to be simplified and thus reduces capital expenditure; further it makes the system immune from interference caused by spill-over signals from adjacent and interconnected networks. - Public Lighting #45, 1947

Installation of Metropolitan Vickers Trafford lanterns along Scarisbrick Road for the APLE 1947 Conference.

Are exhibiting the Trafford and Poplar lanterns. - APLE Conference Programme 1947

The firm was consolidated into AEI Lamps And Lighting in 1956. The old manufacturing name of Metropolitan Vickers was dropped and the tradename of Cosmos was continued by AEI.

The Illuminating Engineer 1928
APLE Conference Programme Folkestone 1937
APLE Conference Programme Bournemouth 1938
APLE Conference Programme Glasgow 1939
APLE Conference Programme Glasgow 1945
APLE Conference Programme London 1946
APLE Conference Programme Southport 1947

External Links:
Grace's Guide