I have looked online alot but have not found anything, I beleive it is a telscopeit type .I have removed the big nut in the picture still will not work .I have the part that bolts to the bed too. I have taken it all apart to see how it works ,I think I have it figure out but no go.Thanks Dale
In the middle of the second picture is a round boss in the middle of the slotted bar. There should be a bolt or lever/bolt that will lock the slotted bar to the carriage located directly underneath it.
The dovetail slide that the carriage is mounted to is the taper attachment slide. That slide gets set to the angle required, and the saddle moves along the bed with respect to it...moving the cross slide as it goes.
OK....it's bound up or the gib is too tight....you will need to correct that first....start by cleaning the dovetail, and then loosen the TA carriage gib.
That should free it up enough to move. There is a non swiveling dovetail below the one that swivels. You should take some time to clean that one too before you get to far afield here....it's probably dirty and in need of lubrication.
The clamp in the far upper right hand corner is the bed clamp. That needs to be locked down to the lathe bed to use the TA.
the clamp in the slotted link also needs to be locked down.
The lower dovetail slide, which is attached to the bed clamp in my first sentence, always slides parallel to the lathe bed when the TA is locked down to the lathe bed and in use.
The upper dovetail and carraige block on the TA is the slide that is set to the appropriate angle for the part at hand.
the saddle cross slide can do this because the leadscrew is splined together so that it rotates as one unit, but is free to slide axially when required.
My guess is that the jibbs are set to tight ,I just found a navy manual and I am doing things right .Will try what I have learned tomorrow will let you know .Thank you very much for helping me Dale