The spring is inverted with the center sitting on a trunnion and the axles attached to each end. Trying to identify to see about trunnion bushings and such. Thanks.
I think Hyster bought them out in 58, is what I read.
I found it , in case anyone else is interested. http://hutchensindustries.com/wp-content/uploads/2014/03/H800B-SinglePoint__323471.pdf