CF du Nord - Paris Area Interlockings ca 1890 -
Cabine 4
Cabin manned by four signalmen, working six hour shifts during the day
and an eight hour night shift. During two hours two signalmen are
on service, so that the box can be cleaned.
Cabin 4 is equipped with semaphores to protect the trains on the local
lines (tramways).
Electric communications
Cabin 4 is in telephone connection with cabins 1, 2, 3, 9, postes F
and H, poste Abis of the inner station, lampisterie (lampman's
place) and Plaine Départ.
Cabin 4 communicates with poste F by tableaux de correspondence
[train describer]. Before sending a train, engine och shunt move towards
poste F, cabin 4 has to announce this by making the indicator (voyant)
appear. When poste F is prepared to receive the train
etc, it makes the indicator disappear. Movements from poste F are
announced to cabin 4 in a similar way. The table reproduced below shows
the train describer indications:
The block section can be manually released by commutateurs de désolidarisation
when trains, engines or shunt moves do not pass on to the block post in
advance, but for instance are going to stabling sidings.
Levers
The lever for signal 47 in cabin 4 is normally in the off position, but
the signal is held in the on position by lever 2 in poste Abis
of La Chapelle [slotting]. Before making a movement in the direction
of poste Abis, the signalmen in cabin 4 are to demand
authorisation from poste Abis by telephone. Poste
Abis gives this autorisation by manipulating lever 3 Safety-lock.
For movements in the other direction, the signalman of Poste Abis
has to demand authorisation from cabin 4. After having obtained this authorisation,
he may manipulate lever 3 Safety-lock.
Working in fog or falling snow
The signalmen of poste sémaphorique 3bis (Cabine
4) have to keep signals 12 and 48 (equipped with detonators) in the stop
position when the corresponding semaphore (block signal) is on. [poste
sémaphorique 3bis perhaps referred to the block post
function of cabin 4?]
CF du Nord interlockings
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Last update 2007-08-30
