[ Ref. Allen Ford in 201016 MMD ]

At Allen Ford's suggestion I have submitted a detailed sketch of the
Ampico B Play-Rewind over-center "snubber" (not really a "torsion")
spring, to one of the many custom spring making companies around the
country. Anticipating a fairly pricey quote, this may well turn out to
be better handled as a subscription project. Depending on the response
from the first company, it may be prudent to approach several more
companies. Stay tuned.

John Grant

 [ Ampico B Rewind-Play Over-center Spring Sketch
 [ https://www.mmdigest.com/Attachments/20/10/18/201018_014652_Spring.jpg