Yes, we really are all kinds of glamorous here. Jealous, right?
Since I'm first generation out of the colonia, I was there A LOT. One afternoon, there was a great shifting around of beds and we ended up with one that had a traction thingy on it. Still not entirely sure why (that's a lie. it was attached to the bed they needed her in.), but I think the bigger mystery was the letters on the knob thingy.
After much googling, I found out that it stands for Texas Medical Industries*.
One less mystery in my corner of the world. About eighty billion to go...
* Started in the 1960's, which totally explains the name/letters.