I have always had a soft spot for Uppadines, my dad who would have been 100 this Boxing day by the way,always swore by his.
He bought it around 1948 and was still riding it in the late sixties I remember. He and one of my uncles rode in one day from Doncaster to Knebworth in the early 50's, stayed at my aunt's for two nights then rode home, again in one day and both where back working down the pit at 6 o'clock the next day.
Wish I had it now! I cannot even remember the model, it was red,fitted with drops and a five speed dérailleur.
Anyway this site has some good info on British classics.
http://www.classicrendezvous.com/British_isles/Uppadine_Cycles.htm