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'Festoon'. It's a real thing for me. It cools paper coming out of a printing press (which includes dryers to dry ink, which also heat the paper) by running it through a set of rollers that run the paper up and down through a 6-8 foot space, something like this:
That's why I stuck a 5 micron inline filter to protect the 10 micron filter in the printhead from the 2 micron particles suspended in the ink.
Explaining that to the MD took a little longer than I thought was strictly reasonable.
Specifying that 5 micron filter and it's housing as a single mandatory maintenance part (with the attached high-profit price you'd expect) ans a defined replacement schedule did it in the end.
"I have no idea what I did, but I'm taking full credit for it." - ThisOldTony
AntiTwitter: @DalekDave is now a follower!
Your drawing made me think of the photolab where I had a summer job in my student days - years before the arrival of digital cameras. Prints were made by exposing the film frames one by one, side by side onto a strip of photosensitive paper. A roll of such a paper strip would hold several hundred photos. After exposure, in a darkroom, the strip was pulled over a roller into a container of developer chemicals - down and up, down and up, three or four sets of rollers (like in the drawing). The next roller took it over to a container with a stop bath, then to another one removing all undeveloped silver. (This would be the black&white process; it was in fact a color print developer, which requires several extra baths.) At least eight to ten paper strips was pulled over the rollers, side by side.
Those people handling the developer machine referred to it as the "sprosser". When I asked where that name came from, they didn't have a clue. It's just the name of it. This was in Norway, and the Norwegian word for "rung" is "sprosse", so I figured that it was the rollers (sort of rungs, sprosser) that had given name to the machine.
... until I heard one of the certified engineers referring to it as the "prosser", and a little later in a somewhat more formal setting as the "processor" ("processing" a print was a common term in those days for putting a photosensitive paper through those chemical processes). Aha! So when chatting with the others (who mostly had no formal education in the field, they had only learned to do the right moves), I started referring to the machine as the "prosser", not the "sprosser". I was corrected on that: It is called a "sprosser"! My attempts to explain that is was a processor, "prosser" being a shortform, was bluntly rejected as academic bullshit from a youngster who thought he could teach people with many years experience the name of things! ... So I went back to calling it a "sprosser" for the duration of the summer job, keeping it as a story to tell many years later