Here's the William Anson overhanging scear patent 1st issued in Britian in 1882 under number 4089(Anson & Deeley's Safety Bolt):

http://www.google.com/patents?id=58lCAAA...882&f=false

I wonder if this patent also has a lone permission use number sequence?

So if the dual screws/pins/scears are based on the William Anson 1882 patent, would that also give us a baseline date for the peddled boxlocks with both?

Originally Posted By: ellenbr
I think Westley Richards acquired the rights in 1883 when patent 1883/83 was filed by William Anson (& John Deeley???) on advancements to the 1875 A&D patent.

So maybe WR acquired the rights on the advancement also?
Kind Regards,

Raimey
rse