I too have a very nice die filer, kindly donated by Stew to my workshop when it was rebuilt with all new machinery a few years ago.
In this view, it shows it fitted with the spring loaded top follower, which allows it to be used with hacksaw blades and very thin files.
The table does tilt a little either way, just in case you want to put an accurate angle onto something you are cutting.
A close up of the tensioning head, and the hold down bar which stops the job lifting up from the table
I also bought a load of new files from the link shown above, but they are mainly for just sticking up through the table, not held on their top end.
For that sort of work, you need another arm with an anti lift bar and pressure support fitted, but no tensioner. Shown here laying on the bench in front of machine. You really do need that back support roller as when you are using long and thin files, with the pressure of you pushing, it prevents the file from being snapped off.
The anti lift bar is a critical part, you risk serious injury if you try to use one of these machines without one, they have a lot of power, and can easily guillotine a misplaced bit of finger off.
This is a piece of 1/8" thick brass, and using a parallel chainsaw file, took only a few seconds to do this damage (just trying the machine out really).
This is it being used as a small power hacksaw, I needed to cut 60 1/4" steel bars for making my toolholder holders, and this little machine did it in minutes.
I replaced the normal v-belt with a Redthane one, which allows me to change speeds by just stretching the belt and dropping it onto the other sheave, rather than slackening and tightening the motor mount.
So in reality, if you do a lot of profiling, shaping material, cutting or even cleaning up and shaping of castings etc, one of these little machines becomes indispensable in the shop, and if you have the chance to get hold of one, buy it, you won't be disappointed.
I hope this has shown you a bit more of an insight into one of these least known machines.
John