Back in the early 1980s
I worked in a local hospital laundry and we had two 450lb divided chamber washers, one 250lb dryer and a couple of 100 lb dryers, huge ironer for the sheets, pillow cases and other linens (flatwork). The ironer was steam heated and had huge rollers that we had to change the covers on several times a year and attached to that was an automatic folder. We also ued a small 75lb machine for smaller items such as baby blankets, PJs, mop heads etc.
Interesting job from the machine stanpoint but one of the jobs that ranks as the worst I ever had and that was due to the people that I worked with - namely the "foreman" and the supervisor.