Samuel Slater did not bring blueprints over. His father died when he was 14 and he was indentured to a mill at that time. Over the next seven years (as an indentured apprentice) he received some pretty decent training in both how to operate and maintain a 32 spindle Arkwright mill. He memorized parts of the blueprints and moved to the United States. Over seven years, it would be hard not to learn parts of the mill you were indentured to. It was technically his job to learn how it worked.

A mill in Rhode Island acquired a 32 spindle Arkwright and didn’t know how to operate or install it. I have no idea how they actually acquired a 32 spindle Arkwright since that technology could not be exported - but that’s one the biggest IP thefts in human history. Slater found some mechanics who could hand turn the iron needed for the frame, trained children to operate it and by 1791, the mill was in operation.

In 1794, Eli Whitney patented a 72 spindle cotton gin. That invention enabled the American textile industry because it opened up different kinds of cotton to the textile industry.

I’m into the history of the American Industrial Revolution and generally think history is a good guidebook to the future. But the evolution of the American textile industry was a lot more complicated and interesting than this. I really don’t see this connection once you dig into Slater.

Edit - This is kind of messed up to think through with modern sensibilities. But one of Slater’s biggest contributions to the American Industrial Revolution was a slightly different take on child labour. Children generally ran the textiles industry because their hands were small. But Slater came up with a form of apprenticeship in which he would indenture entire families and move them into villages surrounding the mills. Child labour was just great… but even better when you could indenture the entire family. As grisly as that sounds, it led to a very skilled workforce since when the kids hands would get too big, their parents would teach them mechanics.

There’s a joy of studying the Industrial Revolution. Everything sounds okay in comparison.

Mill owners like him are precisely why New England states have child labor laws. My state prohibits anyone under 18 from operating any kind of machinery.

Why? Because mill owners would send kids into running machines to keep them running, and they'd get turned into hamburger.

Also, they'd grow up knowing how to do mill work but be useless to society for anything else.

gestures at southern coal states

gestures at midwest farming states