I agree with Matthew M. This is not a tomography machine. The tomography machine I worked on in the late 1970's didn't have a ceiling mount so that the arm holding the x-ray tube could swing back and forth.
This is a general x-ray table for any exam where the patient needs to lie down. My clinic replaced one similar to this just four years ago. It was replaced only because we went "digital" (no film).

This looks like part of the old Picker machine I trained on in 1977-79. We used it for urology studies.

The room above is likely a darkroom for developing x-rays. The metal frames hanging on the wall had clips in the four corners to hold the film in place while it was dipped in the developer, fixer, and water baths. Then the frames were hung in a dryer for 20-30 minutes. To get a "wet reading" the radiologist looked at the images before they went into the dryer (usually for emergencies). The machine below the frames looks like the tanks that held the chemicals.