Ages ago we bought a couple of 'Imperial Upright' typewriters but neither of them work and are really a bit too big / heavy for her to move about. 
Mum is looking for a good home for Dads old Facet 1620 portable (in it's nice travel case) and I had a quick play with it last night and it seems to be ok other than the carriage is stuck (well, you can move it with the carriage release but not with the space bar or keys etc). Googling about suggests that it could be a gummed up escarpment so I should be able to free that up but I was wondering ...
I have access to a fairly large ultrasonic cleaner so if I could get all the delicate bits off, is there any good reason why I couldn't drop the chassis in that and then dry and re lube the bits that should be lubed?
Or do I just vacuum / brush it out and de gum any gummed up bits with denatured alcohol and lube with 3 in 1 or gun oil?
Cheers, T i m
 I might see if any of the local care homes want the uprights as I believe they often have such things for their 'memories' area.