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Parker Jack Knife - Source For Pressure Bars/buttons?


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2 replies to this topic

#1 Ray-Vigo

Ray-Vigo

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Posted 19 May 2020 - 14:53

Cross-posting this Parker-specific repair question for an early pen.

 

I'm repairing a Parker Jack Knife Safety. This Jack Knife differs from the Duofolds I've fixed in the past in that it has (or had) a single-piece button plus pressure bar. The spring part of the bar rotted completely.

 

What is the suggested method to repair? I've replaced pressure bars on Duofolds before, but those were a separate bar that rode in between fingers on the (separate) button. This pen has a plain button that was integral with the pressure bar/spring. Is there a replacement part available today? Or do I try to rig something together using a different pressure bar, etc.?



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#2 Ray-Vigo

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Posted 22 May 2020 - 15:04

I got some help from Dale at Pentooling. He provided me some very good information - some of the early button fillers like this one have a compound bar-spring-button that is all one part. The pressure bar and spring assembly is soldered to the nickel-plated button. His thought was to convert to a more conventional system where you have a straight pressure bar that rides inside a slotted button like you'd see on a Duofold. I really appreciate his thoughts because it confirmed a suspicion I had, that I would need to convert to a more conventional filling set up. The parts are on the way and I'll report back what I find.



#3 Ray-Vigo

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Posted 28 May 2020 - 13:28

The conversion worked. I needed one of the long, straight-type pressure bars and a replacement button. Pressure bar needed to be trimmed a little to get a good fit.








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