I worked on every thing from that type of scale to out heavy duty truck and railroad beem and lever scales. Then we started converting everything over to load cells. As a Millwright in a steel mill that work was the best of the best as that was usually cleaner and easier work.
Cool deal heck yea there are a ton of scales in a steel mill. LOL!! get it??!!
I was a helper and then later a mechanic. I worked inside AK Steel in Middletown Ohio on scales. We also worked on and I helped install new heavy truck/rail scales both the conventional lever system and full electronics load cell truck scales which were very suspect able to lighting strikes at the time. This was from 1978 to 86.
Our company specialized in trouble shooting old style walk in hoffman boxes in batching plants that controlled bagging scales that would bag all kinds of stuff by weight. Conveyor belts and discharge gates and more was part of the scale system. My boss built most of them when he worked at Howe Richerson scale company. He was a expert about them and traveled all over to trouble shoot them. The whole plant would go down and they would fly him out sometimes the same day.
They were used in everything from seed corn to salt to fertilizer to dog food and more. Monsanto had 2 bag lines and a 1000 pound box line we used to work at 2-3 days a week sometimes. They made plastic pellets that they made telephones and more out of.
We were busy back in those days converting truck scales and more to electronic read out with a single load cell attached to the balance beam with it locked down and the load cell senses the load and got displayed digital. Lightning storms always created service work as the electronic scales/read outs were easily damaged by stray currents in those days.
Full electronic load cell truck scale was even worse. So then they came out with a low profile hydraulic load cell full size 60' long truck scale that was closer to lighting proof. But nothing was for sure if you wanted a digital read out.