I looked on Google Books and it looks like the Henry Ford Library has a 20 page book on that mixer.Interesting.
Looks like the batch charges from one side and discharges from the other. Correct ?
The man who ran that everyday "has no toothache now".
Actually, after further review, looks like the complete manual. Check out the link Ron.I looked on Google Books and it looks like the Henry Ford Library has a 20 page book on that mixer.
I also found some basic instructions here https://books.google.com/books?id=NN8IAQAAIAAJ&newbks=1&newbks_redir=0&dq=Koehring Dandie mixer&pg=PA10#v=onepage&q=Koehring Dandie mixer&f=false