Anyone Familair With A National Security Auto-Tank?

[Daddy-O]

Hi all

 

I picked up this English pen (weird name) in a lot I recently purchased. It's a National Security Auto-Tank. it looks to be hard rubber with a 14 K nib. It is a button filler and the barrel unscrews into two parts. There is a short breather tube that comes to the end of the first half of the barrel but does not extend into the sac. It has a very short J bar - if that's what you call it on a button filler. I've pulled it apart and started to clean it but I have some questions:

 

Should the breather tube extend into the sac? Should the sac extend all the way into the button ie. the end of the sac pressed into the J bar? Would this system use a special type of sac? I don't have much experience with button fillers and this is unlike any other I've seen.

 

Regards

Mark

 

 

[peterg]

Check out Paul Martin's Summit site. http://www.summit.ch944.net/section12.php

 

They were made by Lang's for National Security (also look at Rosemary, that's for rememberance). Two types were made, the simple bulb filler (also made by Platignum) and the Auto vac. The sac is just like a standard sac (probably necked originally and crimped to the neck) but much shorter.

 

The pen works on the same principals as the Parker Vacumatic pumping out air from the top and sucking in ink below.

Edited October 30, 2014 by peterg