Door rotators (revolving doors)

[Bassmansam]

Whats the point of them things that are attached to some entrances to buildings where you have to get in it and follow it round?

 

[Bassmansam]

Revolving doors you mean? Prevent howling gales coming into the building due to pressure differential between inside and outside.

Thats it, couldn’t think of the name, cheers.

 

[Bassmansam]

I now have a new name for a revolving door, I can't wait to try it out

let me know how it goes!