Old Ford fan

I just registered here, so I'm new to this forum.
Anyway, I'm redoing the interior in my '64 Fairlane, and for that purpose I bought a set of seats from a junk yard '94 Thenderbird to put in my car. My question is this: Does anyone know if the seatbacks on these buckets are supposed to lock? I've looked at a few sets of 89-97 body style T-bird seats, and NONE of the ones I've looked at locked (note that these were junked cars). I'm thinking that they're supposed to lock because there is a mechanism there and what looks like a relese lever; I really don't get this though, most newer coupes have bucket seats that lock upright, these you can flip forward just like my old split bench.
I hope somebody can answer this for me though, I think I could rig a spring on the mechanism that would make it lock, but how is it really supposed to be? I need to figure out what I'm going to do, I want them to lock, but I don't know anything about these mechanisms but what I can tell by looking at them.
Thanks for any info,

Will