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That looks very similar to the Synchronome type.
Good morning all,
Following your request I attach an image of a six circuit Gillet
and Johnston distribution system for your information. The jack
plug stored at the top of the unit can be removed and inserted in
any of the other circuits to display that circuit current on the
meter and the rheost adjusted to give the required current in that
circuit. To advance a particular circuit the toggle switch is
moved from normal to advance and the push button next to the meter
depressed as required to bring the circuit to time.
On 22/03/2021 06:52, Simon Taylor
With GPO clocks, you have a GMT relay set so that you can power
several clock circuits in large buildings.
With Synchronome, you have a distribution board, which does the
same thing. It just allows expansion so that a really huge
enterprise can run hundreds of clocks. From memory, County Hall
in London was fitted out by Gillet & Johnston and had 1200
clocks running in it.
I would have loved to see the distribution system used there!
Simon GPO Clocks