The initial tiny packaging machine produced by Accutek was a timed stream liquid filler. 30 decades ago, packaging machines weren't just about as versatile as they are today. Timing and Management ended up achieved mechanically and having a number of relays. Accutek was an business leader inside the transition https://www.linpack.com/news/why-tray-sealing-machines-are-essential-for-fresh-and-processed-food-packaging