I am going to have some NEW cog's (sprockets) made unless some one has spares?
would anyone be interested in one?
These are 10 Tooth cogs for Corbin Duplex, New departure Duplex 5,-8 hubs with the larger hole ( 1.58" )
and may have some made for A hubs !!!
New Departure Controller / Iver Johnson patented hub.
This style of the controller features the brass rivets through the shell of the arm to secure the brake shoe in place.
Also shown are NOS variations of the arm, likely steps in the evolution of the design.