Toplight Rooves

[kandc_au]

Hi,

Miss Prism, in the The Siphon thread has posted a link that has got me curious, as it features the rooves of some Toplights.
https://www.warwickshirerailways.com/gwr/gwrls891.htm

The question/s it raises for me is that I understood that originally there were 2 vents/compartment. As such I also understood that 1 vent was removed.
I also understood that they were spaced across the coach and not lengthways.
If you look at the image above you will find the closest Toplight has blanking plates across the coach and the next one has them lengthways along the coach.
The first coach also has 2 blanking plates.
Could I trouble someone to explain to me please:
1/ Why 2 plates across when one would assume there would only be one for the removed vent?
2/ Why some are placed lengthwise and not across the coach where one would assume they would be?

TIA
Khris

[K14]

40 minutes ago, kandc_au said:

1/ Why 2 plates across when one would assume there would only be one for the removed vent?

2/ Why some are placed lengthwise and not across the coach where one would assume they would be?

 

1/ Originally built with gas lighting & then converted. Vent | Lamp top | Vent

2/ No idea, unless some were built with pairs of vents in line - a vent over each seat? A side-on photo ought to settle it.

Edited December 18, 2021 by K14

[Miss Prism]

See

 

[Coach bogie]

I would suggest the closest toplight is a dining car, which would explain vents originally on both sides as it would be an open coach rather than compartment.

 

Mike Wiltshire