Talking about East Tyndall street remined me about the shift changes in the steel works. They worked 2 till 10, 10 till 06, and 06 till 2, then 2 days off, what was called continental shifts and handover takeover was on the job so production was seemless. That meant that meb coming off the 10 PM finishing shift wouldn't get to the pub before last orders so every shift had a deal whereby the people coming on for 10 would come on at 9.30 to give the guys going home a chance to get to the pub. After 8 hours in there you needed a drink.
Local pubs like the Ruperra and the Cardiff Arms would have beers pulled and lined up on the bar at 10 PM ready for the guys coming off shift en-masse. A pub would be empty at 9.55 and rammed at 10. 05. lol