We had a previous discussion on Rices new Nock lock. There was a lot of speculation about parts from other locks being used , and how the lock could be improved.
Any way I contacted Mr Rice and asked if he could send me photos of the original lock that he patterned his new lock on. He told me it would be OK to post them.
This is the outside of the original.
This is the internal of the lock
This is Rice's new lock externals
This is Rice's new lock internal.
You can compare the original to the new lock for yourself. There are changes and undoubtedly some are made to reduce production time. Which in turn reduces cost.
Some are obvious others more subtle. For one the stirrup is pinned on the original and it isn't on the new lock. Not as noticeable the stirrup is longer in the original. I' m not going to address comments made by others in the other post about using parts from other locks and the comparative sizes of those parts. The metallurgy of today and when the original Nock lock was made are worlds apart.
My observation is that Rice's lock is true to the original while not an exact copy. It does not need to be.
One thing about the original that I liked , is the stud in front of the mainspring used to secure the front of the lock without having a bolt go through the stock. With that construct you don't have to even consider about ramrod interference.