Flagator & Jackie B..... I think L&N got sold off and divided up with Honeywell and a few other companies.
If you look real close at the chart recorder on the bottom, you can see a Dymo Label that says Red Mils case expansion.. my guess is that it measured the thermal expansion of the turbine outer casing in thousandths of an inch (Mils). You have to keep an eye on that so the upper and lower halves stay about the same size.
The pens are like a felt tip marker and if the chart stops moving with the pen down, it bleeds onto the chart. (Hold a felt tip marker on a piece of paper and watch the ink stain grow).
It looks like the recorder on the top had 2 channels a blue and a red,,, notice the 2 vertical indicator on the right side.. the bottom one only had one channel.
The insides of these recorders are a maze of tiny gears and pulleys strung with what looks like 6Lb test fishing line and can cause you hours or frustration trying to get them lined up and calibrated.
Ive been heree aha i used to goo here all the time and look around.. your not alloweed to go inside or within like 10 yeard of the place but you can see it very cleary , its really creepy, i swear one time i saw a girl lookinq out the window and we were looking at eachother and then i turned around to call my mom and when my mom looked the girl was gone..
It's funny, but my husband is always trying to understand my obsession with abandoned places....Larry D. you said it perfectly. I'm going to let my hubby read it, so maybe he'll see what I mean.
Thank you Motts. I will see if the guy I heard about it from originally has any websites that he knows of, then I will come back and share them with everyone.
There are some seemingly valid stories in the comments here; I've found it difficult to find much history about Letchworth online as well.
I think your best bet might be the town historian, although you might need to check three places - Haverstraw, Theills, and Stony Point as the hospital campus is located in all three municipalities.