|
londex
|
Londex Limited
Anerley Works
207 Anerley Road
Sydenham
London SE20
|
The firm's range of products includes a great variety of Relays, Staircase Switches,
Timers (synchronously driven for A.C. or on the condenser discharge principle for D.C.),
Photoelectric Equipment etc. Where fifth core or pilot wires, or G.P.O. rented wires
are available, remotely controlled street lighting can be applied by simply controlling
the coils of Londex Mercury Relays (type L.Q.A.). Either A.C. or D.C. can be used for the control
of such relays up to a switching capacity of 50 amps. Half-night off, whole-night on
also provided by Londex Mercury Relays (type L.F.F.S.). The Master Switch can be an
ordinary hand operated switch, time switche or Londex Photo-Electric Night/Day switch.
The Londex Photo-Electric Night/Day switch operates between 150V and 270V, its sensitivity
control allows adjustment to any light intensity down to 0.5 foot candles and it
does not require any filament valves so will have a long service life and extremely low
maintenance costs. - APLE Conference Programme 1946
References:
APLE Conference Programme London 1946
APLE Conference Programme Southport 1947
- External Links:
- Grace's Guide
|