Yes, I'm not seeing how to lock the taper when not in use, then release it for making a taper. Must be a couple missing parts.
There is also TWO slides on the taper travel, one is the normal adjustable taper. the other one, below this, is right in line with the X travel. I can see no use of it. It is all bound up and will take grinding work to free it. I do not think it was ever used. I'll take pics on the machine to explain further.
I will be asking for a sketch or pic of any other parts I need to fabricate. I know I need to make a clamp to the bed for when the taper attachment is in use.