Bronson’s involvement with the German government in the 1930s marked a particularly dark period for the company. Most of the detailed research from this collaboration was ultimately destroyed, but not before a few specific design innovations made it back to consumer products here in the US — albeit in heavily redacted form. The few scraps of explicit documentation that survive are disturbing to say the least.
Here we have a fairly impenetrable engineering diagram uncovered decades later amongst personal correspondence between none other than Wilhelm Reich and Sigmund Freud, who appeared to disagree vehemently on certain specifics of the design. The degree to which either of them influenced later Bronson designs remains unknown. It’s probably just as well.