What Vandercook does this clamp bar go to?

Mystery Vandercook tympan clamp bar

I am trying to figure out what press this tympan clamp bar comes from. It doesn’t fint my SP-15, the Uni I has a slotted bar, and it is too short for the Uni III. Any ideas? It is 14 inches long, the outer pins are 11 1/2 inches on center, and the innermost two are 9 inches on center.

Thanks,
Daniel Morris
The Arm Letterpress
Brooklyn, NY

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Fritz Klinke
Admin
16 years ago

This is part of the assembly for holding the tapes on presses that have the paper tower assembly. It really has nothing to do with the tympan or impression cylinder except that it rides with the impression cylinder assembly as part of the paper tower. By the size, and without checking specific blueprints, I am assuming this was off a Universal I.

Eric Holub
Editor
16 years ago

The previous owner of my 325 was missing the clamp bar; his solution was to drill out the holes and tap them for screws, and put matching holes in a flat plate. It works, but is a bit more cumbersome than the original bar.
I’d much prefer an underfed reel and no clamp bar. The only advantage I can see to the bar is if you have diecut tympan with the locating holes.

Eric Holub
Editor
16 years ago

The 320 also uses a similar bar, though I don’t know the exact dimensions.

Barbara Hauser
16 years ago

Hi Daniel. I don’t know if this helps, but the clamp bar on my No. 4 is 12 1/2 inches long. The outer pins are 10 1/2 inches on center, and the inner pins are 4 3/4 inches on center. ~Barbara

Paul Moxon, Moderator
16 years ago

It may be for a No.4. Some have holes in the reel rod and others do not.

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