Cordon operation

[Glen boy]

Hi, new member here, sorry if this has been asked before, I did do a search but didn't find an answer. 

My question is around the operation of Cordon gas tanks.

I am aware of many photographs of Cordons left at stations for the refilling of gas equipment in coaches, horse boxes and stations buildings, but how were they operated?

Did they have associated pipe work for the refilling, and was it a question of just connecting up and waiting for the tanks to fill ?

Would there have been an exclusion zone around the filling operation where by an engine in steam could not enter?

Would there be permanent ridged pipe work installed to connect them to the station infrastructure?

When transported did the normal flammable material regulations apply ,i.e. not next to the engine and barrier wagons in between?

Indeed could they be marshalled with coaching stock at all?

 

Again sorry if its already been covered elsewhere.

 

BR Glen

 

 

 

[Miss Prism]

There was no 'exclusion zone'. The gas tank system operated at 140psi. I'm not aware of any restrictions as to how Cordons were marshalled in trains, and they could be included in trains with passenger stock. (Such stock having gas tanks of their own anyway, so it would be illogical to ban Cordons from passenger-carrying trains.)

 

Here's one in Lambourn yard, for supplying the horse boxes:

http://lambournvalleyrailway.info/stations+crossings/lambourn/1950s/Lambourn-station-yard.jpg 

 

[TheSignalEngineer]

The LMS also had a number of gas tanks. There's a shot of one on the back of a passenger train being banked up Lickey by a Jinty in the Railway Roundabout programmes c1958/9.