If I remember correctly, those Acme threads are on a slight taper like 1-1/2" TPF. That was part of the old Houston Engineers product line when the two companies merged together way back in time. And no, I do not have any information on the threads.
Also, the Drilco Rotary Shouldered Connection book, now part of Schlumberger, is Copyrighted material, you ask me to supply to you. I cannot copy, reproduce, or distribute this book to anyone out there. Get a hold of Schlumberger marketing group and see if they will sell you a copy. Last price I saw was $750 for that little book!